Doug / smarc-fsl-linux-kernel

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/*

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/*

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* it87.c - Part of lm_sensors, Linux kernel modules for hardware

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* it87.c - Part of lm_sensors, Linux kernel modules for hardware

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* monitoring.

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* monitoring.

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*

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*

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* The IT8705F is an LPC-based Super I/O part that contains UARTs, a

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* The IT8705F is an LPC-based Super I/O part that contains UARTs, a

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* parallel port, an IR port, a MIDI port, a floppy controller, etc., in

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* parallel port, an IR port, a MIDI port, a floppy controller, etc., in

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* addition to an Environment Controller (Enhanced Hardware Monitor and

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* addition to an Environment Controller (Enhanced Hardware Monitor and

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* Fan Controller)

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* Fan Controller)

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*

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*

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* This driver supports only the Environment Controller in the IT8705F and

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* This driver supports only the Environment Controller in the IT8705F and

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* similar parts. The other devices are supported by different drivers.

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* similar parts. The other devices are supported by different drivers.

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*

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*

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* Supports: IT8705F Super I/O chip w/LPC interface

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* Supports: IT8705F Super I/O chip w/LPC interface

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* IT8712F Super I/O chip w/LPC interface

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* IT8712F Super I/O chip w/LPC interface

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* IT8716F Super I/O chip w/LPC interface

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* IT8716F Super I/O chip w/LPC interface

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* IT8718F Super I/O chip w/LPC interface

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* IT8718F Super I/O chip w/LPC interface

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* IT8720F Super I/O chip w/LPC interface

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* IT8720F Super I/O chip w/LPC interface

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* IT8726F Super I/O chip w/LPC interface

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* IT8726F Super I/O chip w/LPC interface

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* Sis950 A clone of the IT8705F

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* Sis950 A clone of the IT8705F

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*

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*

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*

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*

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* This program is free software; you can redistribute it and/or modify

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* This program is free software; you can redistribute it and/or modify

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* it under the terms of the GNU General Public License as published by

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* it under the terms of the GNU General Public License as published by

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* the Free Software Foundation; either version 2 of the License, or

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* the Free Software Foundation; either version 2 of the License, or

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* (at your option) any later version.

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* (at your option) any later version.

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*

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*

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* This program is distributed in the hope that it will be useful,

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* This program is distributed in the hope that it will be useful,

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* but WITHOUT ANY WARRANTY; without even the implied warranty of

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* but WITHOUT ANY WARRANTY; without even the implied warranty of

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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

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* GNU General Public License for more details.

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* GNU General Public License for more details.

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*

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*

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* You should have received a copy of the GNU General Public License

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* You should have received a copy of the GNU General Public License

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* along with this program; if not, write to the Free Software

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* along with this program; if not, write to the Free Software

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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

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*/

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*/

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#include <linux/module.h>

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#include <linux/module.h>

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#include <linux/init.h>

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#include <linux/init.h>

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#include <linux/slab.h>

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#include <linux/slab.h>

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#include <linux/jiffies.h>

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#include <linux/jiffies.h>

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#include <linux/platform_device.h>

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#include <linux/platform_device.h>

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#include <linux/hwmon.h>

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#include <linux/hwmon.h>

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#include <linux/hwmon-sysfs.h>

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#include <linux/hwmon-sysfs.h>

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#include <linux/hwmon-vid.h>

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#include <linux/hwmon-vid.h>

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#include <linux/err.h>

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#include <linux/err.h>

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#include <linux/mutex.h>

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#include <linux/mutex.h>

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#include <linux/sysfs.h>

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#include <linux/sysfs.h>

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#include <linux/string.h>

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#include <linux/string.h>

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#include <linux/dmi.h>

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#include <linux/dmi.h>

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#include <linux/acpi.h>

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#include <linux/acpi.h>

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#include <linux/io.h>

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#include <linux/io.h>

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#define DRVNAME "it87"

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#define DRVNAME "it87"

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enum chips { it87, it8712, it8716, it8718, it8720 };

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enum chips { it87, it8712, it8716, it8718, it8720 };

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static unsigned short force_id;

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static unsigned short force_id;

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module_param(force_id, ushort, 0);

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module_param(force_id, ushort, 0);

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MODULE_PARM_DESC(force_id, "Override the detected device ID");

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MODULE_PARM_DESC(force_id, "Override the detected device ID");

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static struct platform_device *pdev;

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static struct platform_device *pdev;

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#define REG 0x2e /* The register to read/write */

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#define REG 0x2e /* The register to read/write */

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#define DEV 0x07 /* Register: Logical device select */

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#define DEV 0x07 /* Register: Logical device select */

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#define VAL 0x2f /* The value to read/write */

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#define VAL 0x2f /* The value to read/write */

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#define PME 0x04 /* The device with the fan registers in it */

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#define PME 0x04 /* The device with the fan registers in it */

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/* The device with the IT8718F/IT8720F VID value in it */

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/* The device with the IT8718F/IT8720F VID value in it */

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#define GPIO 0x07

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#define GPIO 0x07

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#define DEVID 0x20 /* Register: Device ID */

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#define DEVID 0x20 /* Register: Device ID */

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#define DEVREV 0x22 /* Register: Device Revision */

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#define DEVREV 0x22 /* Register: Device Revision */

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static inline int

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static inline int

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superio_inb(int reg)

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superio_inb(int reg)

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{

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{

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outb(reg, REG);

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outb(reg, REG);

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return inb(VAL);

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return inb(VAL);

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}

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}

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static int superio_inw(int reg)

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static int superio_inw(int reg)

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{

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{

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int val;

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int val;

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outb(reg++, REG);

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outb(reg++, REG);

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val = inb(VAL) << 8;

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val = inb(VAL) << 8;

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outb(reg, REG);

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outb(reg, REG);

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val |= inb(VAL);

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val |= inb(VAL);

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return val;

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return val;

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}

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}

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static inline void

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static inline void

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superio_select(int ldn)

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superio_select(int ldn)

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{

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{

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outb(DEV, REG);

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outb(DEV, REG);

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outb(ldn, VAL);

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outb(ldn, VAL);

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}

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}

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static inline void

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static inline void

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superio_enter(void)

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superio_enter(void)

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{

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{

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outb(0x87, REG);

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outb(0x87, REG);

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outb(0x01, REG);

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outb(0x01, REG);

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outb(0x55, REG);

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outb(0x55, REG);

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outb(0x55, REG);

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outb(0x55, REG);

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}

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}

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static inline void

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static inline void

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superio_exit(void)

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superio_exit(void)

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{

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{

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outb(0x02, REG);

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outb(0x02, REG);

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outb(0x02, VAL);

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outb(0x02, VAL);

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}

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}

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/* Logical device 4 registers */

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/* Logical device 4 registers */

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#define IT8712F_DEVID 0x8712

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#define IT8712F_DEVID 0x8712

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#define IT8705F_DEVID 0x8705

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#define IT8705F_DEVID 0x8705

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#define IT8716F_DEVID 0x8716

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#define IT8716F_DEVID 0x8716

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#define IT8718F_DEVID 0x8718

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#define IT8718F_DEVID 0x8718

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#define IT8720F_DEVID 0x8720

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#define IT8720F_DEVID 0x8720

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#define IT8726F_DEVID 0x8726

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#define IT8726F_DEVID 0x8726

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#define IT87_ACT_REG 0x30

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#define IT87_ACT_REG 0x30

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#define IT87_BASE_REG 0x60

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#define IT87_BASE_REG 0x60

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/* Logical device 7 registers (IT8712F and later) */

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/* Logical device 7 registers (IT8712F and later) */

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#define IT87_SIO_GPIO3_REG 0x27

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#define IT87_SIO_GPIO3_REG 0x27

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#define IT87_SIO_GPIO5_REG 0x29

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#define IT87_SIO_GPIO5_REG 0x29

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#define IT87_SIO_PINX2_REG 0x2c /* Pin selection */

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#define IT87_SIO_PINX2_REG 0x2c /* Pin selection */

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#define IT87_SIO_VID_REG 0xfc /* VID value */

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#define IT87_SIO_VID_REG 0xfc /* VID value */

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#define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */

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#define IT87_SIO_BEEP_PIN_REG 0xf6 /* Beep pin mapping */

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/* Update battery voltage after every reading if true */

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/* Update battery voltage after every reading if true */

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static int update_vbat;

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static int update_vbat;

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/* Not all BIOSes properly configure the PWM registers */

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/* Not all BIOSes properly configure the PWM registers */

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static int fix_pwm_polarity;

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static int fix_pwm_polarity;

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/* Many IT87 constants specified below */

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/* Many IT87 constants specified below */

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/* Length of ISA address segment */

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/* Length of ISA address segment */

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#define IT87_EXTENT 8

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#define IT87_EXTENT 8

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/* Length of ISA address segment for Environmental Controller */

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/* Length of ISA address segment for Environmental Controller */

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#define IT87_EC_EXTENT 2

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#define IT87_EC_EXTENT 2

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/* Offset of EC registers from ISA base address */

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/* Offset of EC registers from ISA base address */

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#define IT87_EC_OFFSET 5

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#define IT87_EC_OFFSET 5

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/* Where are the ISA address/data registers relative to the EC base address */

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/* Where are the ISA address/data registers relative to the EC base address */

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#define IT87_ADDR_REG_OFFSET 0

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#define IT87_ADDR_REG_OFFSET 0

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#define IT87_DATA_REG_OFFSET 1

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#define IT87_DATA_REG_OFFSET 1

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/*----- The IT87 registers -----*/

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/*----- The IT87 registers -----*/

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#define IT87_REG_CONFIG 0x00

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#define IT87_REG_CONFIG 0x00

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#define IT87_REG_ALARM1 0x01

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#define IT87_REG_ALARM1 0x01

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#define IT87_REG_ALARM2 0x02

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#define IT87_REG_ALARM2 0x02

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#define IT87_REG_ALARM3 0x03

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#define IT87_REG_ALARM3 0x03

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/* The IT8718F and IT8720F have the VID value in a different register, in

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/* The IT8718F and IT8720F have the VID value in a different register, in

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Super-I/O configuration space. */

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Super-I/O configuration space. */

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#define IT87_REG_VID 0x0a

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#define IT87_REG_VID 0x0a

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/* The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b

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/* The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b

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for fan divisors. Later IT8712F revisions must use 16-bit tachometer

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for fan divisors. Later IT8712F revisions must use 16-bit tachometer

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mode. */

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mode. */

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#define IT87_REG_FAN_DIV 0x0b

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#define IT87_REG_FAN_DIV 0x0b

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#define IT87_REG_FAN_16BIT 0x0c

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#define IT87_REG_FAN_16BIT 0x0c

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/* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */

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/* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */

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static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 };

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static const u8 IT87_REG_FAN[] = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 };

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static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 };

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static const u8 IT87_REG_FAN_MIN[] = { 0x10, 0x11, 0x12, 0x84, 0x86 };

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static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 };

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static const u8 IT87_REG_FANX[] = { 0x18, 0x19, 0x1a, 0x81, 0x83 };

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static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 };

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static const u8 IT87_REG_FANX_MIN[] = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 };

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#define IT87_REG_FAN_MAIN_CTRL 0x13

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#define IT87_REG_FAN_MAIN_CTRL 0x13

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#define IT87_REG_FAN_CTL 0x14

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#define IT87_REG_FAN_CTL 0x14

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#define IT87_REG_PWM(nr) (0x15 + (nr))

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#define IT87_REG_PWM(nr) (0x15 + (nr))

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#define IT87_REG_VIN(nr) (0x20 + (nr))

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#define IT87_REG_VIN(nr) (0x20 + (nr))

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#define IT87_REG_TEMP(nr) (0x29 + (nr))

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#define IT87_REG_TEMP(nr) (0x29 + (nr))

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#define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2)

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#define IT87_REG_VIN_MAX(nr) (0x30 + (nr) * 2)

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#define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2)

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#define IT87_REG_VIN_MIN(nr) (0x31 + (nr) * 2)

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#define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2)

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#define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2)

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#define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2)

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#define IT87_REG_TEMP_LOW(nr) (0x41 + (nr) * 2)

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#define IT87_REG_VIN_ENABLE 0x50

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#define IT87_REG_VIN_ENABLE 0x50

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#define IT87_REG_TEMP_ENABLE 0x51

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#define IT87_REG_TEMP_ENABLE 0x51

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#define IT87_REG_BEEP_ENABLE 0x5c

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#define IT87_REG_BEEP_ENABLE 0x5c

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#define IT87_REG_CHIPID 0x58

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#define IT87_REG_CHIPID 0x58

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#define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i))

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#define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i))

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#define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i))

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#define IT87_REG_AUTO_PWM(nr, i) (0x65 + (nr) * 8 + (i))

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#define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255))

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#define IN_TO_REG(val) (SENSORS_LIMIT((((val) + 8)/16),0,255))

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#define IN_FROM_REG(val) ((val) * 16)

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#define IN_FROM_REG(val) ((val) * 16)

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static inline u8 FAN_TO_REG(long rpm, int div)

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static inline u8 FAN_TO_REG(long rpm, int div)

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{

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{

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if (rpm == 0)

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if (rpm == 0)

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return 255;

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return 255;

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rpm = SENSORS_LIMIT(rpm, 1, 1000000);

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rpm = SENSORS_LIMIT(rpm, 1, 1000000);

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return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,

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return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,

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254);

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254);

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}

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}

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static inline u16 FAN16_TO_REG(long rpm)

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static inline u16 FAN16_TO_REG(long rpm)

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{

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{

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if (rpm == 0)

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if (rpm == 0)

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return 0xffff;

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return 0xffff;

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return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe);

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return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe);

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}

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}

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#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))

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#define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))

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/* The divider is fixed to 2 in 16-bit mode */

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/* The divider is fixed to 2 in 16-bit mode */

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#define FAN16_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:1350000/((val)*2))

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#define FAN16_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:1350000/((val)*2))

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#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-500)/1000):\

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#define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-500)/1000):\

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((val)+500)/1000),-128,127))

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((val)+500)/1000),-128,127))

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#define TEMP_FROM_REG(val) ((val) * 1000)

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#define TEMP_FROM_REG(val) ((val) * 1000)

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#define PWM_TO_REG(val) ((val) >> 1)

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#define PWM_TO_REG(val) ((val) >> 1)

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#define PWM_FROM_REG(val) (((val)&0x7f) << 1)

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#define PWM_FROM_REG(val) (((val)&0x7f) << 1)

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static int DIV_TO_REG(int val)

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static int DIV_TO_REG(int val)

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{

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{

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int answer = 0;

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int answer = 0;

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while (answer < 7 && (val >>= 1))

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while (answer < 7 && (val >>= 1))

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answer++;

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answer++;

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return answer;

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return answer;

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}

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}

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#define DIV_FROM_REG(val) (1 << (val))

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#define DIV_FROM_REG(val) (1 << (val))

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static const unsigned int pwm_freq[8] = {

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static const unsigned int pwm_freq[8] = {

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48000000 / 128,

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48000000 / 128,

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24000000 / 128,

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24000000 / 128,

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12000000 / 128,

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12000000 / 128,

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8000000 / 128,

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8000000 / 128,

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6000000 / 128,

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6000000 / 128,

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3000000 / 128,

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3000000 / 128,

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1500000 / 128,

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1500000 / 128,

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750000 / 128,

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750000 / 128,

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};

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};

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struct it87_sio_data {

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struct it87_sio_data {

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enum chips type;

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enum chips type;

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/* Values read from Super-I/O config space */

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/* Values read from Super-I/O config space */

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u8 revision;

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u8 revision;

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u8 vid_value;

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u8 vid_value;

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u8 beep_pin;

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u8 beep_pin;

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/* Features skipped based on config or DMI */

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/* Features skipped based on config or DMI */

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u8 skip_vid;

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u8 skip_vid;

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u8 skip_fan;

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u8 skip_fan;

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u8 skip_pwm;

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u8 skip_pwm;

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};

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};

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/* For each registered chip, we need to keep some data in memory.

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/* For each registered chip, we need to keep some data in memory.

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The structure is dynamically allocated. */

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The structure is dynamically allocated. */

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struct it87_data {

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struct it87_data {

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struct device *hwmon_dev;

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struct device *hwmon_dev;

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enum chips type;

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enum chips type;

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u8 revision;

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u8 revision;

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unsigned short addr;

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unsigned short addr;

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const char *name;

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const char *name;

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struct mutex update_lock;

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struct mutex update_lock;

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char valid; /* !=0 if following fields are valid */

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char valid; /* !=0 if following fields are valid */

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unsigned long last_updated; /* In jiffies */

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unsigned long last_updated; /* In jiffies */

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u8 in[9]; /* Register value */

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u8 in[9]; /* Register value */

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u8 in_max[8]; /* Register value */

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u8 in_max[8]; /* Register value */

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u8 in_min[8]; /* Register value */

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u8 in_min[8]; /* Register value */

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u8 has_fan; /* Bitfield, fans enabled */

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u8 has_fan; /* Bitfield, fans enabled */

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u16 fan[5]; /* Register values, possibly combined */

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u16 fan[5]; /* Register values, possibly combined */

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u16 fan_min[5]; /* Register values, possibly combined */

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u16 fan_min[5]; /* Register values, possibly combined */

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s8 temp[3]; /* Register value */

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s8 temp[3]; /* Register value */

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s8 temp_high[3]; /* Register value */

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s8 temp_high[3]; /* Register value */

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s8 temp_low[3]; /* Register value */

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s8 temp_low[3]; /* Register value */

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u8 sensor; /* Register value */

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u8 sensor; /* Register value */

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u8 fan_div[3]; /* Register encoding, shifted right */

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u8 fan_div[3]; /* Register encoding, shifted right */

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u8 vid; /* Register encoding, combined */

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u8 vid; /* Register encoding, combined */

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u8 vrm;

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u8 vrm;

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u32 alarms; /* Register encoding, combined */

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u32 alarms; /* Register encoding, combined */

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u8 beeps; /* Register encoding */

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u8 beeps; /* Register encoding */

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u8 fan_main_ctrl; /* Register value */

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u8 fan_main_ctrl; /* Register value */

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u8 fan_ctl; /* Register value */

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u8 fan_ctl; /* Register value */

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/* The following 3 arrays correspond to the same registers. The

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/* The following 3 arrays correspond to the same registers. The

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* meaning of bits 6-0 depends on the value of bit 7, and we want

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* meaning of bits 6-0 depends on the value of bit 7, and we want

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* to preserve settings on mode changes, so we have to track all

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* to preserve settings on mode changes, so we have to track all

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* values separately. */

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* values separately. */

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u8 pwm_ctrl[3]; /* Register value */

296

u8 pwm_ctrl[3]; /* Register value */

297

u8 pwm_duty[3]; /* Manual PWM value set by user (bit 6-0) */

297

u8 pwm_duty[3]; /* Manual PWM value set by user (bit 6-0) */

298

u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */

298

u8 pwm_temp_map[3]; /* PWM to temp. chan. mapping (bits 1-0) */

299

300

/* Automatic fan speed control registers */

300

/* Automatic fan speed control registers */

301

u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */

301

u8 auto_pwm[3][4]; /* [nr][3] is hard-coded */

302

s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */

302

s8 auto_temp[3][5]; /* [nr][0] is point1_temp_hyst */

303

};

303

};

304

305

static inline int has_16bit_fans(const struct it87_data *data)

305

static inline int has_16bit_fans(const struct it87_data *data)

306

{

306

{

307

/* IT8705F Datasheet 0.4.1, 3h == Version G.

307

/* IT8705F Datasheet 0.4.1, 3h == Version G.

308

IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J.

308

IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J.

309

These are the first revisions with 16bit tachometer support. */

309

These are the first revisions with 16bit tachometer support. */

310

return (data->type == it87 && data->revision >= 0x03)

310

return (data->type == it87 && data->revision >= 0x03)

311

|| (data->type == it8712 && data->revision >= 0x08)

311

|| (data->type == it8712 && data->revision >= 0x08)

312

|| data->type == it8716

312

|| data->type == it8716

313

|| data->type == it8718

313

|| data->type == it8718

314

|| data->type == it8720;

314

|| data->type == it8720;

315

}

315

}

316

317

static inline int has_old_autopwm(const struct it87_data *data)

317

static inline int has_old_autopwm(const struct it87_data *data)

318

{

318

{

319

/* The old automatic fan speed control interface is implemented

319

/* The old automatic fan speed control interface is implemented

320

by IT8705F chips up to revision F and IT8712F chips up to

320

by IT8705F chips up to revision F and IT8712F chips up to

321

revision G. */

321

revision G. */

322

return (data->type == it87 && data->revision < 0x03)

322

return (data->type == it87 && data->revision < 0x03)

323

|| (data->type == it8712 && data->revision < 0x08);

323

|| (data->type == it8712 && data->revision < 0x08);

324

}

324

}

325

326

static int it87_probe(struct platform_device *pdev);

326

static int it87_probe(struct platform_device *pdev);

327

static int __devexit it87_remove(struct platform_device *pdev);

327

static int __devexit it87_remove(struct platform_device *pdev);

328

329

static int it87_read_value(struct it87_data *data, u8 reg);

329

static int it87_read_value(struct it87_data *data, u8 reg);

330

static void it87_write_value(struct it87_data *data, u8 reg, u8 value);

330

static void it87_write_value(struct it87_data *data, u8 reg, u8 value);

331

static struct it87_data *it87_update_device(struct device *dev);

331

static struct it87_data *it87_update_device(struct device *dev);

332

static int it87_check_pwm(struct device *dev);

332

static int it87_check_pwm(struct device *dev);

333

static void it87_init_device(struct platform_device *pdev);

333

static void it87_init_device(struct platform_device *pdev);

334

335

336

static struct platform_driver it87_driver = {

336

static struct platform_driver it87_driver = {

337

.driver = {

337

.driver = {

338

.owner = THIS_MODULE,

338

.owner = THIS_MODULE,

339

.name = DRVNAME,

339

.name = DRVNAME,

340

},

340

},

341

.probe = it87_probe,

341

.probe = it87_probe,

342

.remove = __devexit_p(it87_remove),

342

.remove = __devexit_p(it87_remove),

343

};

343

};

344

345

static ssize_t show_in(struct device *dev, struct device_attribute *attr,

345

static ssize_t show_in(struct device *dev, struct device_attribute *attr,

346

char *buf)

346

char *buf)

347

{

347

{

348

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

348

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

349

int nr = sensor_attr->index;

349

int nr = sensor_attr->index;

350

351

struct it87_data *data = it87_update_device(dev);

351

struct it87_data *data = it87_update_device(dev);

352

return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr]));

352

return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr]));

353

}

353

}

354

355

static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,

355

static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,

356

char *buf)

356

char *buf)

357

{

357

{

358

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

358

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

359

int nr = sensor_attr->index;

359

int nr = sensor_attr->index;

360

361

struct it87_data *data = it87_update_device(dev);

361

struct it87_data *data = it87_update_device(dev);

362

return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr]));

362

return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr]));

363

}

363

}

364

365

static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,

365

static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,

366

char *buf)

366

char *buf)

367

{

367

{

368

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

368

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

369

int nr = sensor_attr->index;

369

int nr = sensor_attr->index;

370

371

struct it87_data *data = it87_update_device(dev);

371

struct it87_data *data = it87_update_device(dev);

372

return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr]));

372

return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr]));

373

}

373

}

374

375

static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,

375

static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,

376

const char *buf, size_t count)

376

const char *buf, size_t count)

377

{

377

{

378

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

378

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

379

int nr = sensor_attr->index;

379

int nr = sensor_attr->index;

380

381

struct it87_data *data = dev_get_drvdata(dev);

381

struct it87_data *data = dev_get_drvdata(dev);

382

unsigned long val;

382

unsigned long val;

383

384

if (strict_strtoul(buf, 10, &val) < 0)

384

if (strict_strtoul(buf, 10, &val) < 0)

385

return -EINVAL;

385

return -EINVAL;

386

387

mutex_lock(&data->update_lock);

387

mutex_lock(&data->update_lock);

388

data->in_min[nr] = IN_TO_REG(val);

388

data->in_min[nr] = IN_TO_REG(val);

389

it87_write_value(data, IT87_REG_VIN_MIN(nr),

389

it87_write_value(data, IT87_REG_VIN_MIN(nr),

390

data->in_min[nr]);

390

data->in_min[nr]);

391

mutex_unlock(&data->update_lock);

391

mutex_unlock(&data->update_lock);

392

return count;

392

return count;

393

}

393

}

394

static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,

394

static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,

395

const char *buf, size_t count)

395

const char *buf, size_t count)

396

{

396

{

397

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

397

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

398

int nr = sensor_attr->index;

398

int nr = sensor_attr->index;

399

400

struct it87_data *data = dev_get_drvdata(dev);

400

struct it87_data *data = dev_get_drvdata(dev);

401

unsigned long val;

401

unsigned long val;

402

403

if (strict_strtoul(buf, 10, &val) < 0)

403

if (strict_strtoul(buf, 10, &val) < 0)

404

return -EINVAL;

404

return -EINVAL;

405

406

mutex_lock(&data->update_lock);

406

mutex_lock(&data->update_lock);

407

data->in_max[nr] = IN_TO_REG(val);

407

data->in_max[nr] = IN_TO_REG(val);

408

it87_write_value(data, IT87_REG_VIN_MAX(nr),

408

it87_write_value(data, IT87_REG_VIN_MAX(nr),

409

data->in_max[nr]);

409

data->in_max[nr]);

410

mutex_unlock(&data->update_lock);

410

mutex_unlock(&data->update_lock);

411

return count;

411

return count;

412

}

412

}

413

414

#define show_in_offset(offset) \

414

#define show_in_offset(offset) \

415

static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \

415

static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \

416

show_in, NULL, offset);

416

show_in, NULL, offset);

417

418

#define limit_in_offset(offset) \

418

#define limit_in_offset(offset) \

419

static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \

419

static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \

420

show_in_min, set_in_min, offset); \

420

show_in_min, set_in_min, offset); \

421

static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \

421

static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \

422

show_in_max, set_in_max, offset);

422

show_in_max, set_in_max, offset);

423

424

show_in_offset(0);

424

show_in_offset(0);

425

limit_in_offset(0);

425

limit_in_offset(0);

426

show_in_offset(1);

426

show_in_offset(1);

427

limit_in_offset(1);

427

limit_in_offset(1);

428

show_in_offset(2);

428

show_in_offset(2);

429

limit_in_offset(2);

429

limit_in_offset(2);

430

show_in_offset(3);

430

show_in_offset(3);

431

limit_in_offset(3);

431

limit_in_offset(3);

432

show_in_offset(4);

432

show_in_offset(4);

433

limit_in_offset(4);

433

limit_in_offset(4);

434

show_in_offset(5);

434

show_in_offset(5);

435

limit_in_offset(5);

435

limit_in_offset(5);

436

show_in_offset(6);

436

show_in_offset(6);

437

limit_in_offset(6);

437

limit_in_offset(6);

438

show_in_offset(7);

438

show_in_offset(7);

439

limit_in_offset(7);

439

limit_in_offset(7);

440

show_in_offset(8);

440

show_in_offset(8);

441

442

/* 3 temperatures */

442

/* 3 temperatures */

443

static ssize_t show_temp(struct device *dev, struct device_attribute *attr,

443

static ssize_t show_temp(struct device *dev, struct device_attribute *attr,

444

char *buf)

444

char *buf)

445

{

445

{

446

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

446

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

447

int nr = sensor_attr->index;

447

int nr = sensor_attr->index;

448

449

struct it87_data *data = it87_update_device(dev);

449

struct it87_data *data = it87_update_device(dev);

450

return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));

450

return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));

451

}

451

}

452

static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,

452

static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,

453

char *buf)

453

char *buf)

454

{

454

{

455

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

455

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

456

int nr = sensor_attr->index;

456

int nr = sensor_attr->index;

457

458

struct it87_data *data = it87_update_device(dev);

458

struct it87_data *data = it87_update_device(dev);

459

return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));

459

return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));

460

}

460

}

461

static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,

461

static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,

462

char *buf)

462

char *buf)

463

{

463

{

464

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

464

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

465

int nr = sensor_attr->index;

465

int nr = sensor_attr->index;

466

467

struct it87_data *data = it87_update_device(dev);

467

struct it87_data *data = it87_update_device(dev);

468

return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr]));

468

return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr]));

469

}

469

}

470

static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,

470

static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,

471

const char *buf, size_t count)

471

const char *buf, size_t count)

472

{

472

{

473

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

473

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

474

int nr = sensor_attr->index;

474

int nr = sensor_attr->index;

475

476

struct it87_data *data = dev_get_drvdata(dev);

476

struct it87_data *data = dev_get_drvdata(dev);

477

long val;

477

long val;

478

479

if (strict_strtol(buf, 10, &val) < 0)

479

if (strict_strtol(buf, 10, &val) < 0)

480

return -EINVAL;

480

return -EINVAL;

481

482

mutex_lock(&data->update_lock);

482

mutex_lock(&data->update_lock);

483

data->temp_high[nr] = TEMP_TO_REG(val);

483

data->temp_high[nr] = TEMP_TO_REG(val);

484

it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]);

484

it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]);

485

mutex_unlock(&data->update_lock);

485

mutex_unlock(&data->update_lock);

486

return count;

486

return count;

487

}

487

}

488

static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,

488

static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,

489

const char *buf, size_t count)

489

const char *buf, size_t count)

490

{

490

{

491

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

491

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

492

int nr = sensor_attr->index;

492

int nr = sensor_attr->index;

493

494

struct it87_data *data = dev_get_drvdata(dev);

494

struct it87_data *data = dev_get_drvdata(dev);

495

long val;

495

long val;

496

497

if (strict_strtol(buf, 10, &val) < 0)

497

if (strict_strtol(buf, 10, &val) < 0)

498

return -EINVAL;

498

return -EINVAL;

499

500

mutex_lock(&data->update_lock);

500

mutex_lock(&data->update_lock);

501

data->temp_low[nr] = TEMP_TO_REG(val);

501

data->temp_low[nr] = TEMP_TO_REG(val);

502

it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]);

502

it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]);

503

mutex_unlock(&data->update_lock);

503

mutex_unlock(&data->update_lock);

504

return count;

504

return count;

505

}

505

}

506

#define show_temp_offset(offset) \

506

#define show_temp_offset(offset) \

507

static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \

507

static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \

508

show_temp, NULL, offset - 1); \

508

show_temp, NULL, offset - 1); \

509

static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \

509

static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \

510

show_temp_max, set_temp_max, offset - 1); \

510

show_temp_max, set_temp_max, offset - 1); \

511

static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \

511

static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR, \

512

show_temp_min, set_temp_min, offset - 1);

512

show_temp_min, set_temp_min, offset - 1);

513

514

show_temp_offset(1);

514

show_temp_offset(1);

515

show_temp_offset(2);

515

show_temp_offset(2);

516

show_temp_offset(3);

516

show_temp_offset(3);

517

518

static ssize_t show_sensor(struct device *dev, struct device_attribute *attr,

518

static ssize_t show_sensor(struct device *dev, struct device_attribute *attr,

519

char *buf)

519

char *buf)

520

{

520

{

521

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

521

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

522

int nr = sensor_attr->index;

522

int nr = sensor_attr->index;

523

524

struct it87_data *data = it87_update_device(dev);

524

struct it87_data *data = it87_update_device(dev);

525

u8 reg = data->sensor; /* In case the value is updated while

525

u8 reg = data->sensor; /* In case the value is updated while

526

we use it */

526

we use it */

527

528

if (reg & (1 << nr))

528

if (reg & (1 << nr))

529

return sprintf(buf, "3\n"); /* thermal diode */

529

return sprintf(buf, "3\n"); /* thermal diode */

530

if (reg & (8 << nr))

530

if (reg & (8 << nr))

531

return sprintf(buf, "4\n"); /* thermistor */

531

return sprintf(buf, "4\n"); /* thermistor */

532

return sprintf(buf, "0\n"); /* disabled */

532

return sprintf(buf, "0\n"); /* disabled */

533

}

533

}

534

static ssize_t set_sensor(struct device *dev, struct device_attribute *attr,

534

static ssize_t set_sensor(struct device *dev, struct device_attribute *attr,

535

const char *buf, size_t count)

535

const char *buf, size_t count)

536

{

536

{

537

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

537

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

538

int nr = sensor_attr->index;

538

int nr = sensor_attr->index;

539

540

struct it87_data *data = dev_get_drvdata(dev);

540

struct it87_data *data = dev_get_drvdata(dev);

541

long val;

541

long val;

542

u8 reg;

542

u8 reg;

543

544

if (strict_strtol(buf, 10, &val) < 0)

544

if (strict_strtol(buf, 10, &val) < 0)

545

return -EINVAL;

545

return -EINVAL;

546

547

reg = it87_read_value(data, IT87_REG_TEMP_ENABLE);

547

reg = it87_read_value(data, IT87_REG_TEMP_ENABLE);

548

reg &= ~(1 << nr);

548

reg &= ~(1 << nr);

549

reg &= ~(8 << nr);

549

reg &= ~(8 << nr);

550

if (val == 2) { /* backwards compatibility */

550

if (val == 2) { /* backwards compatibility */

551

dev_warn(dev, "Sensor type 2 is deprecated, please use 4 "

551

dev_warn(dev, "Sensor type 2 is deprecated, please use 4 "

552

"instead\n");

552

"instead\n");

553

val = 4;

553

val = 4;

554

}

554

}

555

/* 3 = thermal diode; 4 = thermistor; 0 = disabled */

555

/* 3 = thermal diode; 4 = thermistor; 0 = disabled */

556

if (val == 3)

556

if (val == 3)

557

reg |= 1 << nr;

557

reg |= 1 << nr;

558

else if (val == 4)

558

else if (val == 4)

559

reg |= 8 << nr;

559

reg |= 8 << nr;

560

else if (val != 0)

560

else if (val != 0)

561

return -EINVAL;

561

return -EINVAL;

562

563

mutex_lock(&data->update_lock);

563

mutex_lock(&data->update_lock);

564

data->sensor = reg;

564

data->sensor = reg;

565

it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor);

565

it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor);

566

data->valid = 0; /* Force cache refresh */

566

mutex_unlock(&data->update_lock);

567

mutex_unlock(&data->update_lock);

567

return count;

568

return count;

568

}

569

}

569

#define show_sensor_offset(offset) \

570

#define show_sensor_offset(offset) \

570

static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \

571

static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR, \

571

show_sensor, set_sensor, offset - 1);

572

show_sensor, set_sensor, offset - 1);

572

573

show_sensor_offset(1);

574

show_sensor_offset(1);

574

show_sensor_offset(2);

575

show_sensor_offset(2);

575

show_sensor_offset(3);

576

show_sensor_offset(3);

576

577

/* 3 Fans */

578

/* 3 Fans */

578

579

static int pwm_mode(const struct it87_data *data, int nr)

580

static int pwm_mode(const struct it87_data *data, int nr)

580

{

581

{

581

int ctrl = data->fan_main_ctrl & (1 << nr);

582

int ctrl = data->fan_main_ctrl & (1 << nr);

582

583

if (ctrl == 0) /* Full speed */

584

if (ctrl == 0) /* Full speed */

584

return 0;

585

return 0;

585

if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */

586

if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */

586

return 2;

587

return 2;

587

else /* Manual mode */

588

else /* Manual mode */

588

return 1;

589

return 1;

589

}

590

}

590

591

static ssize_t show_fan(struct device *dev, struct device_attribute *attr,

592

static ssize_t show_fan(struct device *dev, struct device_attribute *attr,

592

char *buf)

593

char *buf)

593

{

594

{

594

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

595

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

595

int nr = sensor_attr->index;

596

int nr = sensor_attr->index;

596

597

struct it87_data *data = it87_update_device(dev);

598

struct it87_data *data = it87_update_device(dev);

598

return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],

599

return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],

599

DIV_FROM_REG(data->fan_div[nr])));

600

DIV_FROM_REG(data->fan_div[nr])));

600

}

601

}

601

static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,

602

static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,

602

char *buf)

603

char *buf)

603

{

604

{

604

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

605

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

605

int nr = sensor_attr->index;

606

int nr = sensor_attr->index;

606

607

struct it87_data *data = it87_update_device(dev);

608

struct it87_data *data = it87_update_device(dev);

608

return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],

609

return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],

609

DIV_FROM_REG(data->fan_div[nr])));

610

DIV_FROM_REG(data->fan_div[nr])));

610

}

611

}

611

static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,

612

static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,

612

char *buf)

613

char *buf)

613

{

614

{

614

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

615

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

615

int nr = sensor_attr->index;

616

int nr = sensor_attr->index;

616

617

struct it87_data *data = it87_update_device(dev);

618

struct it87_data *data = it87_update_device(dev);

618

return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));

619

return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));

619

}

620

}

620

static ssize_t show_pwm_enable(struct device *dev,

621

static ssize_t show_pwm_enable(struct device *dev,

621

struct device_attribute *attr, char *buf)

622

struct device_attribute *attr, char *buf)

622

{

623

{

623

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

624

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

624

int nr = sensor_attr->index;

625

int nr = sensor_attr->index;

625

626

struct it87_data *data = it87_update_device(dev);

627

struct it87_data *data = it87_update_device(dev);

627

return sprintf(buf, "%d\n", pwm_mode(data, nr));

628

return sprintf(buf, "%d\n", pwm_mode(data, nr));

628

}

629

}

629

static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,

630

static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,

630

char *buf)

631

char *buf)

631

{

632

{

632

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

633

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

633

int nr = sensor_attr->index;

634

int nr = sensor_attr->index;

634

635

struct it87_data *data = it87_update_device(dev);

636

struct it87_data *data = it87_update_device(dev);

636

return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm_duty[nr]));

637

return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm_duty[nr]));

637

}

638

}

638

static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,

639

static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,

639

char *buf)

640

char *buf)

640

{

641

{

641

struct it87_data *data = it87_update_device(dev);

642

struct it87_data *data = it87_update_device(dev);

642

int index = (data->fan_ctl >> 4) & 0x07;

643

int index = (data->fan_ctl >> 4) & 0x07;

643

644

return sprintf(buf, "%u\n", pwm_freq[index]);

645

return sprintf(buf, "%u\n", pwm_freq[index]);

645

}

646

}

646

static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,

647

static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,

647

const char *buf, size_t count)

648

const char *buf, size_t count)

648

{

649

{

649

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

650

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

650

int nr = sensor_attr->index;

651

int nr = sensor_attr->index;

651

652

struct it87_data *data = dev_get_drvdata(dev);

653

struct it87_data *data = dev_get_drvdata(dev);

653

long val;

654

long val;

654

u8 reg;

655

u8 reg;

655

656

if (strict_strtol(buf, 10, &val) < 0)

657

if (strict_strtol(buf, 10, &val) < 0)

657

return -EINVAL;

658

return -EINVAL;

658

659

mutex_lock(&data->update_lock);

660

mutex_lock(&data->update_lock);

660

reg = it87_read_value(data, IT87_REG_FAN_DIV);

661

reg = it87_read_value(data, IT87_REG_FAN_DIV);

661

switch (nr) {

662

switch (nr) {

662

case 0:

663

case 0:

663

data->fan_div[nr] = reg & 0x07;

664

data->fan_div[nr] = reg & 0x07;

664

break;

665

break;

665

case 1:

666

case 1:

666

data->fan_div[nr] = (reg >> 3) & 0x07;

667

data->fan_div[nr] = (reg >> 3) & 0x07;

667

break;

668

break;

668

case 2:

669

case 2:

669

data->fan_div[nr] = (reg & 0x40) ? 3 : 1;

670

data->fan_div[nr] = (reg & 0x40) ? 3 : 1;

670

break;

671

break;

671

}

672

}

672

673

data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));

674

data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));

674

it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]);

675

it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]);

675

mutex_unlock(&data->update_lock);

676

mutex_unlock(&data->update_lock);

676

return count;

677

return count;

677

}

678

}

678

static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,

679

static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,

679

const char *buf, size_t count)

680

const char *buf, size_t count)

680

{

681

{

681

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

682

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

682

int nr = sensor_attr->index;

683

int nr = sensor_attr->index;

683

684

struct it87_data *data = dev_get_drvdata(dev);

685

struct it87_data *data = dev_get_drvdata(dev);

685

unsigned long val;

686

unsigned long val;

686

int min;

687

int min;

687

u8 old;

688

u8 old;

688

689

if (strict_strtoul(buf, 10, &val) < 0)

690

if (strict_strtoul(buf, 10, &val) < 0)

690

return -EINVAL;

691

return -EINVAL;

691

692

mutex_lock(&data->update_lock);

693

mutex_lock(&data->update_lock);

693

old = it87_read_value(data, IT87_REG_FAN_DIV);

694

old = it87_read_value(data, IT87_REG_FAN_DIV);

694

695

/* Save fan min limit */

696

/* Save fan min limit */

696

min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));

697

min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));

697

698

switch (nr) {

699

switch (nr) {

699

case 0:

700

case 0:

700

case 1:

701

case 1:

701

data->fan_div[nr] = DIV_TO_REG(val);

702

data->fan_div[nr] = DIV_TO_REG(val);

702

break;

703

break;

703

case 2:

704

case 2:

704

if (val < 8)

705

if (val < 8)

705

data->fan_div[nr] = 1;

706

data->fan_div[nr] = 1;

706

else

707

else

707

data->fan_div[nr] = 3;

708

data->fan_div[nr] = 3;

708

}

709

}

709

val = old & 0x80;

710

val = old & 0x80;

710

val |= (data->fan_div[0] & 0x07);

711

val |= (data->fan_div[0] & 0x07);

711

val |= (data->fan_div[1] & 0x07) << 3;

712

val |= (data->fan_div[1] & 0x07) << 3;

712

if (data->fan_div[2] == 3)

713

if (data->fan_div[2] == 3)

713

val |= 0x1 << 6;

714

val |= 0x1 << 6;

714

it87_write_value(data, IT87_REG_FAN_DIV, val);

715

it87_write_value(data, IT87_REG_FAN_DIV, val);

715

716

/* Restore fan min limit */

717

/* Restore fan min limit */

717

data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));

718

data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));

718

it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]);

719

it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]);

719

720

mutex_unlock(&data->update_lock);

721

mutex_unlock(&data->update_lock);

721

return count;

722

return count;

722

}

723

}

723

724

/* Returns 0 if OK, -EINVAL otherwise */

725

/* Returns 0 if OK, -EINVAL otherwise */

725

static int check_trip_points(struct device *dev, int nr)

726

static int check_trip_points(struct device *dev, int nr)

726

{

727

{

727

const struct it87_data *data = dev_get_drvdata(dev);

728

const struct it87_data *data = dev_get_drvdata(dev);

728

int i, err = 0;

729

int i, err = 0;

729

730

if (has_old_autopwm(data)) {

731

if (has_old_autopwm(data)) {

731

for (i = 0; i < 3; i++) {

732

for (i = 0; i < 3; i++) {

732

if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])

733

if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])

733

err = -EINVAL;

734

err = -EINVAL;

734

}

735

}

735

for (i = 0; i < 2; i++) {

736

for (i = 0; i < 2; i++) {

736

if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])

737

if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])

737

err = -EINVAL;

738

err = -EINVAL;

738

}

739

}

739

}

740

}

740

741

if (err) {

742

if (err) {

742

dev_err(dev, "Inconsistent trip points, not switching to "

743

dev_err(dev, "Inconsistent trip points, not switching to "

743

"automatic mode\n");

744

"automatic mode\n");

744

dev_err(dev, "Adjust the trip points and try again\n");

745

dev_err(dev, "Adjust the trip points and try again\n");

745

}

746

}

746

return err;

747

return err;

747

}

748

}

748

749

static ssize_t set_pwm_enable(struct device *dev,

750

static ssize_t set_pwm_enable(struct device *dev,

750

struct device_attribute *attr, const char *buf, size_t count)

751

struct device_attribute *attr, const char *buf, size_t count)

751

{

752

{

752

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

753

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

753

int nr = sensor_attr->index;

754

int nr = sensor_attr->index;

754

755

struct it87_data *data = dev_get_drvdata(dev);

756

struct it87_data *data = dev_get_drvdata(dev);

756

long val;

757

long val;

757

758

if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 2)

759

if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 2)

759

return -EINVAL;

760

return -EINVAL;

760

761

/* Check trip points before switching to automatic mode */

762

/* Check trip points before switching to automatic mode */

762

if (val == 2) {

763

if (val == 2) {

763

if (check_trip_points(dev, nr) < 0)

764

if (check_trip_points(dev, nr) < 0)

764

return -EINVAL;

765

return -EINVAL;

765

}

766

}

766

767

mutex_lock(&data->update_lock);

768

mutex_lock(&data->update_lock);

768

769

if (val == 0) {

770

if (val == 0) {

770

int tmp;

771

int tmp;

771

/* make sure the fan is on when in on/off mode */

772

/* make sure the fan is on when in on/off mode */

772

tmp = it87_read_value(data, IT87_REG_FAN_CTL);

773

tmp = it87_read_value(data, IT87_REG_FAN_CTL);

773

it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr));

774

it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr));

774

/* set on/off mode */

775

/* set on/off mode */

775

data->fan_main_ctrl &= ~(1 << nr);

776

data->fan_main_ctrl &= ~(1 << nr);

776

it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,

777

it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,

777

data->fan_main_ctrl);

778

data->fan_main_ctrl);

778

} else {

779

} else {

779

if (val == 1) /* Manual mode */

780

if (val == 1) /* Manual mode */

780

data->pwm_ctrl[nr] = data->pwm_duty[nr];

781

data->pwm_ctrl[nr] = data->pwm_duty[nr];

781

else /* Automatic mode */

782

else /* Automatic mode */

782

data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];

783

data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];

783

it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);

784

it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);

784

/* set SmartGuardian mode */

785

/* set SmartGuardian mode */

785

data->fan_main_ctrl |= (1 << nr);

786

data->fan_main_ctrl |= (1 << nr);

786

it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,

787

it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,

787

data->fan_main_ctrl);

788

data->fan_main_ctrl);

788

}

789

}

789

790

mutex_unlock(&data->update_lock);

791

mutex_unlock(&data->update_lock);

791

return count;

792

return count;

792

}

793

}

793

static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,

794

static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,

794

const char *buf, size_t count)

795

const char *buf, size_t count)

795

{

796

{

796

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

797

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

797

int nr = sensor_attr->index;

798

int nr = sensor_attr->index;

798

799

struct it87_data *data = dev_get_drvdata(dev);

800

struct it87_data *data = dev_get_drvdata(dev);

800

long val;

801

long val;

801

802

if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255)

803

if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255)

803

return -EINVAL;

804

return -EINVAL;

804

805

mutex_lock(&data->update_lock);

806

mutex_lock(&data->update_lock);

806

data->pwm_duty[nr] = PWM_TO_REG(val);

807

data->pwm_duty[nr] = PWM_TO_REG(val);

807

/* If we are in manual mode, write the duty cycle immediately;

808

/* If we are in manual mode, write the duty cycle immediately;

808

* otherwise, just store it for later use. */

809

* otherwise, just store it for later use. */

809

if (!(data->pwm_ctrl[nr] & 0x80)) {

810

if (!(data->pwm_ctrl[nr] & 0x80)) {

810

data->pwm_ctrl[nr] = data->pwm_duty[nr];

811

data->pwm_ctrl[nr] = data->pwm_duty[nr];

811

it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);

812

it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);

812

}

813

}

813

mutex_unlock(&data->update_lock);

814

mutex_unlock(&data->update_lock);

814

return count;

815

return count;

815

}

816

}

816

static ssize_t set_pwm_freq(struct device *dev,

817

static ssize_t set_pwm_freq(struct device *dev,

817

struct device_attribute *attr, const char *buf, size_t count)

818

struct device_attribute *attr, const char *buf, size_t count)

818

{

819

{

819

struct it87_data *data = dev_get_drvdata(dev);

820

struct it87_data *data = dev_get_drvdata(dev);

820

unsigned long val;

821

unsigned long val;

821

int i;

822

int i;

822

823

if (strict_strtoul(buf, 10, &val) < 0)

824

if (strict_strtoul(buf, 10, &val) < 0)

824

return -EINVAL;

825

return -EINVAL;

825

826

/* Search for the nearest available frequency */

827

/* Search for the nearest available frequency */

827

for (i = 0; i < 7; i++) {

828

for (i = 0; i < 7; i++) {

828

if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2)

829

if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2)

829

break;

830

break;

830

}

831

}

831

832

mutex_lock(&data->update_lock);

833

mutex_lock(&data->update_lock);

833

data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f;

834

data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f;

834

data->fan_ctl |= i << 4;

835

data->fan_ctl |= i << 4;

835

it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl);

836

it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl);

836

mutex_unlock(&data->update_lock);

837

mutex_unlock(&data->update_lock);

837

838

return count;

839

return count;

839

}

840

}

840

static ssize_t show_pwm_temp_map(struct device *dev,

841

static ssize_t show_pwm_temp_map(struct device *dev,

841

struct device_attribute *attr, char *buf)

842

struct device_attribute *attr, char *buf)

842

{

843

{

843

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

844

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

844

int nr = sensor_attr->index;

845

int nr = sensor_attr->index;

845

846

struct it87_data *data = it87_update_device(dev);

847

struct it87_data *data = it87_update_device(dev);

847

int map;

848

int map;

848

849

if (data->pwm_temp_map[nr] < 3)

850

if (data->pwm_temp_map[nr] < 3)

850

map = 1 << data->pwm_temp_map[nr];

851

map = 1 << data->pwm_temp_map[nr];

851

else

852

else

852

map = 0; /* Should never happen */

853

map = 0; /* Should never happen */

853

return sprintf(buf, "%d\n", map);

854

return sprintf(buf, "%d\n", map);

854

}

855

}

855

static ssize_t set_pwm_temp_map(struct device *dev,

856

static ssize_t set_pwm_temp_map(struct device *dev,

856

struct device_attribute *attr, const char *buf, size_t count)

857

struct device_attribute *attr, const char *buf, size_t count)

857

{

858

{

858

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

859

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

859

int nr = sensor_attr->index;

860

int nr = sensor_attr->index;

860

861

struct it87_data *data = dev_get_drvdata(dev);

862

struct it87_data *data = dev_get_drvdata(dev);

862

long val;

863

long val;

863

u8 reg;

864

u8 reg;

864

865

/* This check can go away if we ever support automatic fan speed

866

/* This check can go away if we ever support automatic fan speed

866

control on newer chips. */

867

control on newer chips. */

867

if (!has_old_autopwm(data)) {

868

if (!has_old_autopwm(data)) {

868

dev_notice(dev, "Mapping change disabled for safety reasons\n");

869

dev_notice(dev, "Mapping change disabled for safety reasons\n");

869

return -EINVAL;

870

return -EINVAL;

870

}

871

}

871

872

if (strict_strtol(buf, 10, &val) < 0)

873

if (strict_strtol(buf, 10, &val) < 0)

873

return -EINVAL;

874

return -EINVAL;

874

875

switch (val) {

876

switch (val) {

876

case (1 << 0):

877

case (1 << 0):

877

reg = 0x00;

878

reg = 0x00;

878

break;

879

break;

879

case (1 << 1):

880

case (1 << 1):

880

reg = 0x01;

881

reg = 0x01;

881

break;

882

break;

882

case (1 << 2):

883

case (1 << 2):

883

reg = 0x02;

884

reg = 0x02;

884

break;

885

break;

885

default:

886

default:

886

return -EINVAL;

887

return -EINVAL;

887

}

888

}

888

889

mutex_lock(&data->update_lock);

890

mutex_lock(&data->update_lock);

890

data->pwm_temp_map[nr] = reg;

891

data->pwm_temp_map[nr] = reg;

891

/* If we are in automatic mode, write the temp mapping immediately;

892

/* If we are in automatic mode, write the temp mapping immediately;

892

* otherwise, just store it for later use. */

893

* otherwise, just store it for later use. */

893

if (data->pwm_ctrl[nr] & 0x80) {

894

if (data->pwm_ctrl[nr] & 0x80) {

894

data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];

895

data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];

895

it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);

896

it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);

896

}

897

}

897

mutex_unlock(&data->update_lock);

898

mutex_unlock(&data->update_lock);

898

return count;

899

return count;

899

}

900

}

900

901

static ssize_t show_auto_pwm(struct device *dev,

902

static ssize_t show_auto_pwm(struct device *dev,

902

struct device_attribute *attr, char *buf)

903

struct device_attribute *attr, char *buf)

903

{

904

{

904

struct it87_data *data = it87_update_device(dev);

905

struct it87_data *data = it87_update_device(dev);

905

struct sensor_device_attribute_2 *sensor_attr =

906

struct sensor_device_attribute_2 *sensor_attr =

906

to_sensor_dev_attr_2(attr);

907

to_sensor_dev_attr_2(attr);

907

int nr = sensor_attr->nr;

908

int nr = sensor_attr->nr;

908

int point = sensor_attr->index;

909

int point = sensor_attr->index;

909

910

return sprintf(buf, "%d\n", PWM_FROM_REG(data->auto_pwm[nr][point]));

911

return sprintf(buf, "%d\n", PWM_FROM_REG(data->auto_pwm[nr][point]));

911

}

912

}

912

913

static ssize_t set_auto_pwm(struct device *dev,

914

static ssize_t set_auto_pwm(struct device *dev,

914

struct device_attribute *attr, const char *buf, size_t count)

915

struct device_attribute *attr, const char *buf, size_t count)

915

{

916

{

916

struct it87_data *data = dev_get_drvdata(dev);

917

struct it87_data *data = dev_get_drvdata(dev);

917

struct sensor_device_attribute_2 *sensor_attr =

918

struct sensor_device_attribute_2 *sensor_attr =

918

to_sensor_dev_attr_2(attr);

919

to_sensor_dev_attr_2(attr);

919

int nr = sensor_attr->nr;

920

int nr = sensor_attr->nr;

920

int point = sensor_attr->index;

921

int point = sensor_attr->index;

921

long val;

922

long val;

922

923

if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255)

924

if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255)

924

return -EINVAL;

925

return -EINVAL;

925

926

mutex_lock(&data->update_lock);

927

mutex_lock(&data->update_lock);

927

data->auto_pwm[nr][point] = PWM_TO_REG(val);

928

data->auto_pwm[nr][point] = PWM_TO_REG(val);

928

it87_write_value(data, IT87_REG_AUTO_PWM(nr, point),

929

it87_write_value(data, IT87_REG_AUTO_PWM(nr, point),

929

data->auto_pwm[nr][point]);

930

data->auto_pwm[nr][point]);

930

mutex_unlock(&data->update_lock);

931

mutex_unlock(&data->update_lock);

931

return count;

932

return count;

932

}

933

}

933

934

static ssize_t show_auto_temp(struct device *dev,

935

static ssize_t show_auto_temp(struct device *dev,

935

struct device_attribute *attr, char *buf)

936

struct device_attribute *attr, char *buf)

936

{

937

{

937

struct it87_data *data = it87_update_device(dev);

938

struct it87_data *data = it87_update_device(dev);

938

struct sensor_device_attribute_2 *sensor_attr =

939

struct sensor_device_attribute_2 *sensor_attr =

939

to_sensor_dev_attr_2(attr);

940

to_sensor_dev_attr_2(attr);

940

int nr = sensor_attr->nr;

941

int nr = sensor_attr->nr;

941

int point = sensor_attr->index;

942

int point = sensor_attr->index;

942

943

return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point]));

944

return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point]));

944

}

945

}

945

946

static ssize_t set_auto_temp(struct device *dev,

947

static ssize_t set_auto_temp(struct device *dev,

947

struct device_attribute *attr, const char *buf, size_t count)

948

struct device_attribute *attr, const char *buf, size_t count)

948

{

949

{

949

struct it87_data *data = dev_get_drvdata(dev);

950

struct it87_data *data = dev_get_drvdata(dev);

950

struct sensor_device_attribute_2 *sensor_attr =

951

struct sensor_device_attribute_2 *sensor_attr =

951

to_sensor_dev_attr_2(attr);

952

to_sensor_dev_attr_2(attr);

952

int nr = sensor_attr->nr;

953

int nr = sensor_attr->nr;

953

int point = sensor_attr->index;

954

int point = sensor_attr->index;

954

long val;

955

long val;

955

956

if (strict_strtol(buf, 10, &val) < 0 || val < -128000 || val > 127000)

957

if (strict_strtol(buf, 10, &val) < 0 || val < -128000 || val > 127000)

957

return -EINVAL;

958

return -EINVAL;

958

959

mutex_lock(&data->update_lock);

960

mutex_lock(&data->update_lock);

960

data->auto_temp[nr][point] = TEMP_TO_REG(val);

961

data->auto_temp[nr][point] = TEMP_TO_REG(val);

961

it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point),

962

it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point),

962

data->auto_temp[nr][point]);

963

data->auto_temp[nr][point]);

963

mutex_unlock(&data->update_lock);

964

mutex_unlock(&data->update_lock);

964

return count;

965

return count;

965

}

966

}

966

967

#define show_fan_offset(offset) \

968

#define show_fan_offset(offset) \

968

static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \

969

static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \

969

show_fan, NULL, offset - 1); \

970

show_fan, NULL, offset - 1); \

970

static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \

971

static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \

971

show_fan_min, set_fan_min, offset - 1); \

972

show_fan_min, set_fan_min, offset - 1); \

972

static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \

973

static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \

973

show_fan_div, set_fan_div, offset - 1);

974

show_fan_div, set_fan_div, offset - 1);

974

975

show_fan_offset(1);

976

show_fan_offset(1);

976

show_fan_offset(2);

977

show_fan_offset(2);

977

show_fan_offset(3);

978

show_fan_offset(3);

978

979

#define show_pwm_offset(offset) \

980

#define show_pwm_offset(offset) \

980

static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \

981

static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \

981

show_pwm_enable, set_pwm_enable, offset - 1); \

982

show_pwm_enable, set_pwm_enable, offset - 1); \

982

static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \

983

static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \

983

show_pwm, set_pwm, offset - 1); \

984

show_pwm, set_pwm, offset - 1); \

984

static DEVICE_ATTR(pwm##offset##_freq, \

985

static DEVICE_ATTR(pwm##offset##_freq, \

985

(offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \

986

(offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO), \

986

show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); \

987

show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL)); \

987

static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp, \

988

static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp, \

988

S_IRUGO | S_IWUSR, show_pwm_temp_map, set_pwm_temp_map, \

989

S_IRUGO | S_IWUSR, show_pwm_temp_map, set_pwm_temp_map, \

989

offset - 1); \

990

offset - 1); \

990

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_pwm, \

991

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_pwm, \

991

S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \

992

S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \

992

offset - 1, 0); \

993

offset - 1, 0); \

993

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_pwm, \

994

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_pwm, \

994

S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \

995

S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \

995

offset - 1, 1); \

996

offset - 1, 1); \

996

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_pwm, \

997

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_pwm, \

997

S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \

998

S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm, \

998

offset - 1, 2); \

999

offset - 1, 2); \

999

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_pwm, \

1000

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_pwm, \

1000

S_IRUGO, show_auto_pwm, NULL, offset - 1, 3); \

1001

S_IRUGO, show_auto_pwm, NULL, offset - 1, 3); \

1001

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp, \

1002

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp, \

1002

S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \

1003

S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \

1003

offset - 1, 1); \

1004

offset - 1, 1); \

1004

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp_hyst, \

1005

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp_hyst, \

1005

S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \

1006

S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \

1006

offset - 1, 0); \

1007

offset - 1, 0); \

1007

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_temp, \

1008

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_temp, \

1008

S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \

1009

S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \

1009

offset - 1, 2); \

1010

offset - 1, 2); \

1010

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_temp, \

1011

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_temp, \

1011

S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \

1012

S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \

1012

offset - 1, 3); \

1013

offset - 1, 3); \

1013

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_temp, \

1014

static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_temp, \

1014

S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \

1015

S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp, \

1015

offset - 1, 4);

1016

offset - 1, 4);

1016

1017

show_pwm_offset(1);

1018

show_pwm_offset(1);

1018

show_pwm_offset(2);

1019

show_pwm_offset(2);

1019

show_pwm_offset(3);

1020

show_pwm_offset(3);

1020

1021

/* A different set of callbacks for 16-bit fans */

1022

/* A different set of callbacks for 16-bit fans */

1022

static ssize_t show_fan16(struct device *dev, struct device_attribute *attr,

1023

static ssize_t show_fan16(struct device *dev, struct device_attribute *attr,

1023

char *buf)

1024

char *buf)

1024

{

1025

{

1025

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

1026

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

1026

int nr = sensor_attr->index;

1027

int nr = sensor_attr->index;

1027

struct it87_data *data = it87_update_device(dev);

1028

struct it87_data *data = it87_update_device(dev);

1028

return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan[nr]));

1029

return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan[nr]));

1029

}

1030

}

1030

1031

static ssize_t show_fan16_min(struct device *dev, struct device_attribute *attr,

1032

static ssize_t show_fan16_min(struct device *dev, struct device_attribute *attr,

1032

char *buf)

1033

char *buf)

1033

{

1034

{

1034

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

1035

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

1035

int nr = sensor_attr->index;

1036

int nr = sensor_attr->index;

1036

struct it87_data *data = it87_update_device(dev);

1037

struct it87_data *data = it87_update_device(dev);

1037

return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan_min[nr]));

1038

return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan_min[nr]));

1038

}

1039

}

1039

1040

static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr,

1041

static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr,

1041

const char *buf, size_t count)

1042

const char *buf, size_t count)

1042

{

1043

{

1043

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

1044

struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

1044

int nr = sensor_attr->index;

1045

int nr = sensor_attr->index;

1045

struct it87_data *data = dev_get_drvdata(dev);

1046

struct it87_data *data = dev_get_drvdata(dev);

1046

long val;

1047

long val;

1047

1048

if (strict_strtol(buf, 10, &val) < 0)

1049

if (strict_strtol(buf, 10, &val) < 0)

1049

return -EINVAL;

1050

return -EINVAL;

1050

1051

mutex_lock(&data->update_lock);

1052

mutex_lock(&data->update_lock);

1052

data->fan_min[nr] = FAN16_TO_REG(val);

1053

data->fan_min[nr] = FAN16_TO_REG(val);

1053

it87_write_value(data, IT87_REG_FAN_MIN[nr],

1054

it87_write_value(data, IT87_REG_FAN_MIN[nr],

1054

data->fan_min[nr] & 0xff);

1055

data->fan_min[nr] & 0xff);

1055

it87_write_value(data, IT87_REG_FANX_MIN[nr],

1056

it87_write_value(data, IT87_REG_FANX_MIN[nr],

1056

data->fan_min[nr] >> 8);

1057

data->fan_min[nr] >> 8);

1057

mutex_unlock(&data->update_lock);

1058

mutex_unlock(&data->update_lock);

1058

return count;

1059

return count;

1059

}

1060

}

1060

1061

/* We want to use the same sysfs file names as 8-bit fans, but we need

1062

/* We want to use the same sysfs file names as 8-bit fans, but we need

1062

different variable names, so we have to use SENSOR_ATTR instead of

1063

different variable names, so we have to use SENSOR_ATTR instead of

1063

SENSOR_DEVICE_ATTR. */

1064

SENSOR_DEVICE_ATTR. */

1064

#define show_fan16_offset(offset) \

1065

#define show_fan16_offset(offset) \

1065

static struct sensor_device_attribute sensor_dev_attr_fan##offset##_input16 \

1066

static struct sensor_device_attribute sensor_dev_attr_fan##offset##_input16 \

1066

= SENSOR_ATTR(fan##offset##_input, S_IRUGO, \

1067

= SENSOR_ATTR(fan##offset##_input, S_IRUGO, \

1067

show_fan16, NULL, offset - 1); \

1068

show_fan16, NULL, offset - 1); \

1068

static struct sensor_device_attribute sensor_dev_attr_fan##offset##_min16 \

1069

static struct sensor_device_attribute sensor_dev_attr_fan##offset##_min16 \

1069

= SENSOR_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \

1070

= SENSOR_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \

1070

show_fan16_min, set_fan16_min, offset - 1)

1071

show_fan16_min, set_fan16_min, offset - 1)

1071

1072

show_fan16_offset(1);

1073

show_fan16_offset(1);

1073

show_fan16_offset(2);

1074

show_fan16_offset(2);

1074

show_fan16_offset(3);

1075

show_fan16_offset(3);

1075

show_fan16_offset(4);

1076

show_fan16_offset(4);

1076

show_fan16_offset(5);

1077

show_fan16_offset(5);

1077

1078

/* Alarms */

1079

/* Alarms */

1079

static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,

1080

static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,

1080

char *buf)

1081

char *buf)

1081

{

1082

{

1082

struct it87_data *data = it87_update_device(dev);

1083

struct it87_data *data = it87_update_device(dev);

1083

return sprintf(buf, "%u\n", data->alarms);

1084

return sprintf(buf, "%u\n", data->alarms);

1084

}

1085

}

1085

static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);

1086

static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);

1086

1087

static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,

1088

static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,

1088

char *buf)

1089

char *buf)

1089

{

1090

{

1090

int bitnr = to_sensor_dev_attr(attr)->index;

1091

int bitnr = to_sensor_dev_attr(attr)->index;

1091

struct it87_data *data = it87_update_device(dev);

1092

struct it87_data *data = it87_update_device(dev);

1092

return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);

1093

return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);

1093

}

1094

}

1094

static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8);

1095

static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8);

1095

static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9);

1096

static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9);

1096

static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10);

1097

static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10);

1097

static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11);

1098

static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11);

1098

static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12);

1099

static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12);

1099

static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13);

1100

static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13);

1100

static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14);

1101

static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14);

1101

static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15);

1102

static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15);

1102

static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0);

1103

static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0);

1103

static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1);

1104

static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1);

1104

static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2);

1105

static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2);

1105

static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3);

1106

static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3);

1106

static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6);

1107

static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6);

1107

static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16);

1108

static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16);

1108

static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17);

1109

static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17);

1109

static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18);

1110

static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18);

1110

1111

static ssize_t show_beep(struct device *dev, struct device_attribute *attr,

1112

static ssize_t show_beep(struct device *dev, struct device_attribute *attr,

1112

char *buf)

1113

char *buf)

1113

{

1114

{

1114

int bitnr = to_sensor_dev_attr(attr)->index;

1115

int bitnr = to_sensor_dev_attr(attr)->index;

1115

struct it87_data *data = it87_update_device(dev);

1116

struct it87_data *data = it87_update_device(dev);

1116

return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1);

1117

return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1);

1117

}

1118

}

1118

static ssize_t set_beep(struct device *dev, struct device_attribute *attr,

1119

static ssize_t set_beep(struct device *dev, struct device_attribute *attr,

1119

const char *buf, size_t count)

1120

const char *buf, size_t count)

1120

{

1121

{

1121

int bitnr = to_sensor_dev_attr(attr)->index;

1122

int bitnr = to_sensor_dev_attr(attr)->index;

1122

struct it87_data *data = dev_get_drvdata(dev);

1123

struct it87_data *data = dev_get_drvdata(dev);

1123

long val;

1124

long val;

1124

1125

if (strict_strtol(buf, 10, &val) < 0

1126

if (strict_strtol(buf, 10, &val) < 0

1126

|| (val != 0 && val != 1))

1127

|| (val != 0 && val != 1))

1127

return -EINVAL;

1128

return -EINVAL;

1128

1129

mutex_lock(&data->update_lock);

1130

mutex_lock(&data->update_lock);

1130

data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);

1131

data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);

1131

if (val)

1132

if (val)

1132

data->beeps |= (1 << bitnr);

1133

data->beeps |= (1 << bitnr);

1133

else

1134

else

1134

data->beeps &= ~(1 << bitnr);

1135

data->beeps &= ~(1 << bitnr);

1135

it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps);

1136

it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps);

1136

mutex_unlock(&data->update_lock);

1137

mutex_unlock(&data->update_lock);

1137

return count;

1138

return count;

1138

}

1139

}

1139

1140

static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,

1141

static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,

1141

show_beep, set_beep, 1);

1142

show_beep, set_beep, 1);

1142

static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1);

1143

static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1);

1143

static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1);

1144

static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1);

1144

static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1);

1145

static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1);

1145

static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1);

1146

static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1);

1146

static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1);

1147

static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1);

1147

static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1);

1148

static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1);

1148

static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1);

1149

static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1);

1149

/* fanX_beep writability is set later */

1150

/* fanX_beep writability is set later */

1150

static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0);

1151

static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0);

1151

static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0);

1152

static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0);

1152

static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0);

1153

static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0);

1153

static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0);

1154

static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0);

1154

static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0);

1155

static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0);

1155

static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,

1156

static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,

1156

show_beep, set_beep, 2);

1157

show_beep, set_beep, 2);

1157

static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2);

1158

static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2);

1158

static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2);

1159

static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2);

1159

1160

static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,

1161

static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,

1161

char *buf)

1162

char *buf)

1162

{

1163

{

1163

struct it87_data *data = dev_get_drvdata(dev);

1164

struct it87_data *data = dev_get_drvdata(dev);

1164

return sprintf(buf, "%u\n", data->vrm);

1165

return sprintf(buf, "%u\n", data->vrm);

1165

}

1166

}

1166

static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,

1167

static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,

1167

const char *buf, size_t count)

1168

const char *buf, size_t count)

1168

{

1169

{

1169

struct it87_data *data = dev_get_drvdata(dev);

1170

struct it87_data *data = dev_get_drvdata(dev);

1170

unsigned long val;

1171

unsigned long val;

1171

1172

if (strict_strtoul(buf, 10, &val) < 0)

1173

if (strict_strtoul(buf, 10, &val) < 0)

1173

return -EINVAL;

1174

return -EINVAL;

1174

1175

data->vrm = val;

1176

data->vrm = val;

1176

1177

return count;

1178

return count;

1178

}

1179

}

1179

static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);

1180

static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);

1180

1181

static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,

1182

static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,

1182

char *buf)

1183

char *buf)

1183

{

1184

{

1184

struct it87_data *data = it87_update_device(dev);

1185

struct it87_data *data = it87_update_device(dev);

1185

return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));

1186

return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));

1186

}

1187

}

1187

static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);

1188

static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);

1188

1189

static ssize_t show_name(struct device *dev, struct device_attribute

1190

static ssize_t show_name(struct device *dev, struct device_attribute

1190

*devattr, char *buf)

1191

*devattr, char *buf)

1191

{

1192

{

1192

struct it87_data *data = dev_get_drvdata(dev);

1193

struct it87_data *data = dev_get_drvdata(dev);

1193

return sprintf(buf, "%s\n", data->name);

1194

return sprintf(buf, "%s\n", data->name);

1194

}

1195

}

1195

static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);

1196

static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);

1196

1197

static struct attribute *it87_attributes[] = {

1198

static struct attribute *it87_attributes[] = {

1198

&sensor_dev_attr_in0_input.dev_attr.attr,

1199

&sensor_dev_attr_in0_input.dev_attr.attr,

1199

&sensor_dev_attr_in1_input.dev_attr.attr,

1200

&sensor_dev_attr_in1_input.dev_attr.attr,

1200

&sensor_dev_attr_in2_input.dev_attr.attr,

1201

&sensor_dev_attr_in2_input.dev_attr.attr,

1201

&sensor_dev_attr_in3_input.dev_attr.attr,

1202

&sensor_dev_attr_in3_input.dev_attr.attr,

1202

&sensor_dev_attr_in4_input.dev_attr.attr,

1203

&sensor_dev_attr_in4_input.dev_attr.attr,

1203

&sensor_dev_attr_in5_input.dev_attr.attr,

1204

&sensor_dev_attr_in5_input.dev_attr.attr,

1204

&sensor_dev_attr_in6_input.dev_attr.attr,

1205

&sensor_dev_attr_in6_input.dev_attr.attr,

1205

&sensor_dev_attr_in7_input.dev_attr.attr,

1206

&sensor_dev_attr_in7_input.dev_attr.attr,

1206

&sensor_dev_attr_in8_input.dev_attr.attr,

1207

&sensor_dev_attr_in8_input.dev_attr.attr,

1207

&sensor_dev_attr_in0_min.dev_attr.attr,

1208

&sensor_dev_attr_in0_min.dev_attr.attr,

1208

&sensor_dev_attr_in1_min.dev_attr.attr,

1209

&sensor_dev_attr_in1_min.dev_attr.attr,

1209

&sensor_dev_attr_in2_min.dev_attr.attr,

1210

&sensor_dev_attr_in2_min.dev_attr.attr,

1210

&sensor_dev_attr_in3_min.dev_attr.attr,

1211

&sensor_dev_attr_in3_min.dev_attr.attr,

1211

&sensor_dev_attr_in4_min.dev_attr.attr,

1212

&sensor_dev_attr_in4_min.dev_attr.attr,

1212

&sensor_dev_attr_in5_min.dev_attr.attr,

1213

&sensor_dev_attr_in5_min.dev_attr.attr,

1213

&sensor_dev_attr_in6_min.dev_attr.attr,

1214

&sensor_dev_attr_in6_min.dev_attr.attr,

1214

&sensor_dev_attr_in7_min.dev_attr.attr,

1215

&sensor_dev_attr_in7_min.dev_attr.attr,

1215

&sensor_dev_attr_in0_max.dev_attr.attr,

1216

&sensor_dev_attr_in0_max.dev_attr.attr,

1216

&sensor_dev_attr_in1_max.dev_attr.attr,

1217

&sensor_dev_attr_in1_max.dev_attr.attr,

1217

&sensor_dev_attr_in2_max.dev_attr.attr,

1218

&sensor_dev_attr_in2_max.dev_attr.attr,

1218

&sensor_dev_attr_in3_max.dev_attr.attr,

1219

&sensor_dev_attr_in3_max.dev_attr.attr,

1219

&sensor_dev_attr_in4_max.dev_attr.attr,

1220

&sensor_dev_attr_in4_max.dev_attr.attr,

1220

&sensor_dev_attr_in5_max.dev_attr.attr,

1221

&sensor_dev_attr_in5_max.dev_attr.attr,

1221

&sensor_dev_attr_in6_max.dev_attr.attr,

1222

&sensor_dev_attr_in6_max.dev_attr.attr,

1222

&sensor_dev_attr_in7_max.dev_attr.attr,

1223

&sensor_dev_attr_in7_max.dev_attr.attr,

1223

&sensor_dev_attr_in0_alarm.dev_attr.attr,

1224

&sensor_dev_attr_in0_alarm.dev_attr.attr,

1224

&sensor_dev_attr_in1_alarm.dev_attr.attr,

1225

&sensor_dev_attr_in1_alarm.dev_attr.attr,

1225

&sensor_dev_attr_in2_alarm.dev_attr.attr,

1226

&sensor_dev_attr_in2_alarm.dev_attr.attr,

1226

&sensor_dev_attr_in3_alarm.dev_attr.attr,

1227

&sensor_dev_attr_in3_alarm.dev_attr.attr,

1227

&sensor_dev_attr_in4_alarm.dev_attr.attr,

1228

&sensor_dev_attr_in4_alarm.dev_attr.attr,

1228

&sensor_dev_attr_in5_alarm.dev_attr.attr,

1229

&sensor_dev_attr_in5_alarm.dev_attr.attr,

1229

&sensor_dev_attr_in6_alarm.dev_attr.attr,

1230

&sensor_dev_attr_in6_alarm.dev_attr.attr,

1230

&sensor_dev_attr_in7_alarm.dev_attr.attr,

1231

&sensor_dev_attr_in7_alarm.dev_attr.attr,

1231

1232

&sensor_dev_attr_temp1_input.dev_attr.attr,

1233

&sensor_dev_attr_temp1_input.dev_attr.attr,

1233

&sensor_dev_attr_temp2_input.dev_attr.attr,

1234

&sensor_dev_attr_temp2_input.dev_attr.attr,

1234

&sensor_dev_attr_temp3_input.dev_attr.attr,

1235

&sensor_dev_attr_temp3_input.dev_attr.attr,

1235

&sensor_dev_attr_temp1_max.dev_attr.attr,

1236

&sensor_dev_attr_temp1_max.dev_attr.attr,

1236

&sensor_dev_attr_temp2_max.dev_attr.attr,

1237

&sensor_dev_attr_temp2_max.dev_attr.attr,

1237

&sensor_dev_attr_temp3_max.dev_attr.attr,

1238

&sensor_dev_attr_temp3_max.dev_attr.attr,

1238

&sensor_dev_attr_temp1_min.dev_attr.attr,

1239

&sensor_dev_attr_temp1_min.dev_attr.attr,

1239

&sensor_dev_attr_temp2_min.dev_attr.attr,

1240

&sensor_dev_attr_temp2_min.dev_attr.attr,

1240

&sensor_dev_attr_temp3_min.dev_attr.attr,

1241

&sensor_dev_attr_temp3_min.dev_attr.attr,

1241

&sensor_dev_attr_temp1_type.dev_attr.attr,

1242

&sensor_dev_attr_temp1_type.dev_attr.attr,

1242

&sensor_dev_attr_temp2_type.dev_attr.attr,

1243

&sensor_dev_attr_temp2_type.dev_attr.attr,

1243

&sensor_dev_attr_temp3_type.dev_attr.attr,

1244

&sensor_dev_attr_temp3_type.dev_attr.attr,

1244

&sensor_dev_attr_temp1_alarm.dev_attr.attr,

1245

&sensor_dev_attr_temp1_alarm.dev_attr.attr,

1245

&sensor_dev_attr_temp2_alarm.dev_attr.attr,

1246

&sensor_dev_attr_temp2_alarm.dev_attr.attr,

1246

&sensor_dev_attr_temp3_alarm.dev_attr.attr,

1247

&sensor_dev_attr_temp3_alarm.dev_attr.attr,

1247

1248

&dev_attr_alarms.attr,

1249

&dev_attr_alarms.attr,

1249

&dev_attr_name.attr,

1250

&dev_attr_name.attr,

1250

NULL

1251

NULL

1251

};

1252

};

1252

1253

static const struct attribute_group it87_group = {

1254

static const struct attribute_group it87_group = {

1254

.attrs = it87_attributes,

1255

.attrs = it87_attributes,

1255

};

1256

};

1256

1257

static struct attribute *it87_attributes_beep[] = {

1258

static struct attribute *it87_attributes_beep[] = {

1258

&sensor_dev_attr_in0_beep.dev_attr.attr,

1259

&sensor_dev_attr_in0_beep.dev_attr.attr,

1259

&sensor_dev_attr_in1_beep.dev_attr.attr,

1260

&sensor_dev_attr_in1_beep.dev_attr.attr,

1260

&sensor_dev_attr_in2_beep.dev_attr.attr,

1261

&sensor_dev_attr_in2_beep.dev_attr.attr,

1261

&sensor_dev_attr_in3_beep.dev_attr.attr,

1262

&sensor_dev_attr_in3_beep.dev_attr.attr,

1262

&sensor_dev_attr_in4_beep.dev_attr.attr,

1263

&sensor_dev_attr_in4_beep.dev_attr.attr,

1263

&sensor_dev_attr_in5_beep.dev_attr.attr,

1264

&sensor_dev_attr_in5_beep.dev_attr.attr,

1264

&sensor_dev_attr_in6_beep.dev_attr.attr,

1265

&sensor_dev_attr_in6_beep.dev_attr.attr,

1265

&sensor_dev_attr_in7_beep.dev_attr.attr,

1266

&sensor_dev_attr_in7_beep.dev_attr.attr,

1266

1267

&sensor_dev_attr_temp1_beep.dev_attr.attr,

1268

&sensor_dev_attr_temp1_beep.dev_attr.attr,

1268

&sensor_dev_attr_temp2_beep.dev_attr.attr,

1269

&sensor_dev_attr_temp2_beep.dev_attr.attr,

1269

&sensor_dev_attr_temp3_beep.dev_attr.attr,

1270

&sensor_dev_attr_temp3_beep.dev_attr.attr,

1270

NULL

1271

NULL

1271

};

1272

};

1272

1273

static const struct attribute_group it87_group_beep = {

1274

static const struct attribute_group it87_group_beep = {

1274

.attrs = it87_attributes_beep,

1275

.attrs = it87_attributes_beep,

1275

};

1276

};

1276

1277

static struct attribute *it87_attributes_fan16[5][3+1] = { {

1278

static struct attribute *it87_attributes_fan16[5][3+1] = { {

1278

&sensor_dev_attr_fan1_input16.dev_attr.attr,

1279

&sensor_dev_attr_fan1_input16.dev_attr.attr,

1279

&sensor_dev_attr_fan1_min16.dev_attr.attr,

1280

&sensor_dev_attr_fan1_min16.dev_attr.attr,

1280

&sensor_dev_attr_fan1_alarm.dev_attr.attr,

1281

&sensor_dev_attr_fan1_alarm.dev_attr.attr,

1281

NULL

1282

NULL

1282

}, {

1283

}, {

1283

&sensor_dev_attr_fan2_input16.dev_attr.attr,

1284

&sensor_dev_attr_fan2_input16.dev_attr.attr,

1284

&sensor_dev_attr_fan2_min16.dev_attr.attr,

1285

&sensor_dev_attr_fan2_min16.dev_attr.attr,

1285

&sensor_dev_attr_fan2_alarm.dev_attr.attr,

1286

&sensor_dev_attr_fan2_alarm.dev_attr.attr,

1286

NULL

1287

NULL

1287

}, {

1288

}, {

1288

&sensor_dev_attr_fan3_input16.dev_attr.attr,

1289

&sensor_dev_attr_fan3_input16.dev_attr.attr,

1289

&sensor_dev_attr_fan3_min16.dev_attr.attr,

1290

&sensor_dev_attr_fan3_min16.dev_attr.attr,

1290

&sensor_dev_attr_fan3_alarm.dev_attr.attr,

1291

&sensor_dev_attr_fan3_alarm.dev_attr.attr,

1291

NULL

1292

NULL

1292

}, {

1293

}, {

1293

&sensor_dev_attr_fan4_input16.dev_attr.attr,

1294

&sensor_dev_attr_fan4_input16.dev_attr.attr,

1294

&sensor_dev_attr_fan4_min16.dev_attr.attr,

1295

&sensor_dev_attr_fan4_min16.dev_attr.attr,

1295

&sensor_dev_attr_fan4_alarm.dev_attr.attr,

1296

&sensor_dev_attr_fan4_alarm.dev_attr.attr,

1296

NULL

1297

NULL

1297

}, {

1298

}, {

1298

&sensor_dev_attr_fan5_input16.dev_attr.attr,

1299

&sensor_dev_attr_fan5_input16.dev_attr.attr,

1299

&sensor_dev_attr_fan5_min16.dev_attr.attr,

1300

&sensor_dev_attr_fan5_min16.dev_attr.attr,

1300

&sensor_dev_attr_fan5_alarm.dev_attr.attr,

1301

&sensor_dev_attr_fan5_alarm.dev_attr.attr,

1301

NULL

1302

NULL

1302

} };

1303

} };

1303

1304

static const struct attribute_group it87_group_fan16[5] = {

1305

static const struct attribute_group it87_group_fan16[5] = {

1305

{ .attrs = it87_attributes_fan16[0] },

1306

{ .attrs = it87_attributes_fan16[0] },

1306

{ .attrs = it87_attributes_fan16[1] },

1307

{ .attrs = it87_attributes_fan16[1] },

1307

{ .attrs = it87_attributes_fan16[2] },

1308

{ .attrs = it87_attributes_fan16[2] },

1308

{ .attrs = it87_attributes_fan16[3] },

1309

{ .attrs = it87_attributes_fan16[3] },

1309

{ .attrs = it87_attributes_fan16[4] },

1310

{ .attrs = it87_attributes_fan16[4] },

1310

};

1311

};

1311

1312

static struct attribute *it87_attributes_fan[3][4+1] = { {

1313

static struct attribute *it87_attributes_fan[3][4+1] = { {

1313

&sensor_dev_attr_fan1_input.dev_attr.attr,

1314

&sensor_dev_attr_fan1_input.dev_attr.attr,

1314

&sensor_dev_attr_fan1_min.dev_attr.attr,

1315

&sensor_dev_attr_fan1_min.dev_attr.attr,

1315

&sensor_dev_attr_fan1_div.dev_attr.attr,

1316

&sensor_dev_attr_fan1_div.dev_attr.attr,

1316

&sensor_dev_attr_fan1_alarm.dev_attr.attr,

1317

&sensor_dev_attr_fan1_alarm.dev_attr.attr,

1317

NULL

1318

NULL

1318

}, {

1319

}, {

1319

&sensor_dev_attr_fan2_input.dev_attr.attr,

1320

&sensor_dev_attr_fan2_input.dev_attr.attr,

1320

&sensor_dev_attr_fan2_min.dev_attr.attr,

1321

&sensor_dev_attr_fan2_min.dev_attr.attr,

1321

&sensor_dev_attr_fan2_div.dev_attr.attr,

1322

&sensor_dev_attr_fan2_div.dev_attr.attr,

1322

&sensor_dev_attr_fan2_alarm.dev_attr.attr,

1323

&sensor_dev_attr_fan2_alarm.dev_attr.attr,

1323

NULL

1324

NULL

1324

}, {

1325

}, {

1325

&sensor_dev_attr_fan3_input.dev_attr.attr,

1326

&sensor_dev_attr_fan3_input.dev_attr.attr,

1326

&sensor_dev_attr_fan3_min.dev_attr.attr,

1327

&sensor_dev_attr_fan3_min.dev_attr.attr,

1327

&sensor_dev_attr_fan3_div.dev_attr.attr,

1328

&sensor_dev_attr_fan3_div.dev_attr.attr,

1328

&sensor_dev_attr_fan3_alarm.dev_attr.attr,

1329

&sensor_dev_attr_fan3_alarm.dev_attr.attr,

1329

NULL

1330

NULL

1330

} };

1331

} };

1331

1332

static const struct attribute_group it87_group_fan[3] = {

1333

static const struct attribute_group it87_group_fan[3] = {

1333

{ .attrs = it87_attributes_fan[0] },

1334

{ .attrs = it87_attributes_fan[0] },

1334

{ .attrs = it87_attributes_fan[1] },

1335

{ .attrs = it87_attributes_fan[1] },

1335

{ .attrs = it87_attributes_fan[2] },

1336

{ .attrs = it87_attributes_fan[2] },

1336

};

1337

};

1337

1338

static const struct attribute_group *

1339

static const struct attribute_group *

1339

it87_get_fan_group(const struct it87_data *data)

1340

it87_get_fan_group(const struct it87_data *data)

1340

{

1341

{

1341

return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan;

1342

return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan;

1342

}

1343

}

1343

1344

static struct attribute *it87_attributes_pwm[3][4+1] = { {

1345

static struct attribute *it87_attributes_pwm[3][4+1] = { {

1345

&sensor_dev_attr_pwm1_enable.dev_attr.attr,

1346

&sensor_dev_attr_pwm1_enable.dev_attr.attr,

1346

&sensor_dev_attr_pwm1.dev_attr.attr,

1347

&sensor_dev_attr_pwm1.dev_attr.attr,

1347

&dev_attr_pwm1_freq.attr,

1348

&dev_attr_pwm1_freq.attr,

1348

&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,

1349

&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,

1349

NULL

1350

NULL

1350

}, {

1351

}, {

1351

&sensor_dev_attr_pwm2_enable.dev_attr.attr,

1352

&sensor_dev_attr_pwm2_enable.dev_attr.attr,

1352

&sensor_dev_attr_pwm2.dev_attr.attr,

1353

&sensor_dev_attr_pwm2.dev_attr.attr,

1353

&dev_attr_pwm2_freq.attr,

1354

&dev_attr_pwm2_freq.attr,

1354

&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,

1355

&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,

1355

NULL

1356

NULL

1356

}, {

1357

}, {

1357

&sensor_dev_attr_pwm3_enable.dev_attr.attr,

1358

&sensor_dev_attr_pwm3_enable.dev_attr.attr,

1358

&sensor_dev_attr_pwm3.dev_attr.attr,

1359

&sensor_dev_attr_pwm3.dev_attr.attr,

1359

&dev_attr_pwm3_freq.attr,

1360

&dev_attr_pwm3_freq.attr,

1360

&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,

1361

&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,

1361

NULL

1362

NULL

1362

} };

1363

} };

1363

1364

static const struct attribute_group it87_group_pwm[3] = {

1365

static const struct attribute_group it87_group_pwm[3] = {

1365

{ .attrs = it87_attributes_pwm[0] },

1366

{ .attrs = it87_attributes_pwm[0] },

1366

{ .attrs = it87_attributes_pwm[1] },

1367

{ .attrs = it87_attributes_pwm[1] },

1367

{ .attrs = it87_attributes_pwm[2] },

1368

{ .attrs = it87_attributes_pwm[2] },

1368

};

1369

};

1369

1370

static struct attribute *it87_attributes_autopwm[3][9+1] = { {

1371

static struct attribute *it87_attributes_autopwm[3][9+1] = { {

1371

&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,

1372

&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,

1372

&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,

1373

&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,

1373

&sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,

1374

&sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,

1374

&sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,

1375

&sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,

1375

&sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,

1376

&sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,

1376

&sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr,

1377

&sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr,

1377

&sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,

1378

&sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,

1378

&sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,

1379

&sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,

1379

&sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,

1380

&sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,

1380

NULL

1381

NULL

1381

}, {

1382

}, {

1382

&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,

1383

&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,

1383

&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,

1384

&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,

1384

&sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,

1385

&sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,

1385

&sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,

1386

&sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,

1386

&sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,

1387

&sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,

1387

&sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr,

1388

&sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr,

1388

&sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,

1389

&sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,

1389

&sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,

1390

&sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,

1390

&sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,

1391

&sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,

1391

NULL

1392

NULL

1392

}, {

1393

}, {

1393

&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,

1394

&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,

1394

&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,

1395

&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,

1395

&sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,

1396

&sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,

1396

&sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,

1397

&sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,

1397

&sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,

1398

&sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,

1398

&sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr,

1399

&sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr,

1399

&sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,

1400

&sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,

1400

&sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,

1401

&sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,

1401

&sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,

1402

&sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,

1402

NULL

1403

NULL

1403

} };

1404

} };

1404

1405

static const struct attribute_group it87_group_autopwm[3] = {

1406

static const struct attribute_group it87_group_autopwm[3] = {

1406

{ .attrs = it87_attributes_autopwm[0] },

1407

{ .attrs = it87_attributes_autopwm[0] },

1407

{ .attrs = it87_attributes_autopwm[1] },

1408

{ .attrs = it87_attributes_autopwm[1] },

1408

{ .attrs = it87_attributes_autopwm[2] },

1409

{ .attrs = it87_attributes_autopwm[2] },

1409

};

1410

};

1410

1411

static struct attribute *it87_attributes_fan_beep[] = {

1412

static struct attribute *it87_attributes_fan_beep[] = {

1412

&sensor_dev_attr_fan1_beep.dev_attr.attr,

1413

&sensor_dev_attr_fan1_beep.dev_attr.attr,

1413

&sensor_dev_attr_fan2_beep.dev_attr.attr,

1414

&sensor_dev_attr_fan2_beep.dev_attr.attr,

1414

&sensor_dev_attr_fan3_beep.dev_attr.attr,

1415

&sensor_dev_attr_fan3_beep.dev_attr.attr,

1415

&sensor_dev_attr_fan4_beep.dev_attr.attr,

1416

&sensor_dev_attr_fan4_beep.dev_attr.attr,

1416

&sensor_dev_attr_fan5_beep.dev_attr.attr,

1417

&sensor_dev_attr_fan5_beep.dev_attr.attr,

1417

};

1418

};

1418

1419

static struct attribute *it87_attributes_vid[] = {

1420

static struct attribute *it87_attributes_vid[] = {

1420

&dev_attr_vrm.attr,

1421

&dev_attr_vrm.attr,

1421

&dev_attr_cpu0_vid.attr,

1422

&dev_attr_cpu0_vid.attr,

1422

NULL

1423

NULL

1423

};

1424

};

1424

1425

static const struct attribute_group it87_group_vid = {

1426

static const struct attribute_group it87_group_vid = {

1426

.attrs = it87_attributes_vid,

1427

.attrs = it87_attributes_vid,

1427

};

1428

};

1428

1429

/* SuperIO detection - will change isa_address if a chip is found */

1430

/* SuperIO detection - will change isa_address if a chip is found */

1430

static int __init it87_find(unsigned short *address,

1431

static int __init it87_find(unsigned short *address,

1431

struct it87_sio_data *sio_data)

1432

struct it87_sio_data *sio_data)

1432

{

1433

{

1433

int err = -ENODEV;

1434

int err = -ENODEV;

1434

u16 chip_type;

1435

u16 chip_type;

1435

const char *board_vendor, *board_name;

1436

const char *board_vendor, *board_name;

1436

1437

superio_enter();

1438

superio_enter();

1438

chip_type = force_id ? force_id : superio_inw(DEVID);

1439

chip_type = force_id ? force_id : superio_inw(DEVID);

1439

1440

switch (chip_type) {

1441

switch (chip_type) {

1441

case IT8705F_DEVID:

1442

case IT8705F_DEVID:

1442

sio_data->type = it87;

1443

sio_data->type = it87;

1443

break;

1444

break;

1444

case IT8712F_DEVID:

1445

case IT8712F_DEVID:

1445

sio_data->type = it8712;

1446

sio_data->type = it8712;

1446

break;

1447

break;

1447

case IT8716F_DEVID:

1448

case IT8716F_DEVID:

1448

case IT8726F_DEVID:

1449

case IT8726F_DEVID:

1449

sio_data->type = it8716;

1450

sio_data->type = it8716;

1450

break;

1451

break;

1451

case IT8718F_DEVID:

1452

case IT8718F_DEVID:

1452

sio_data->type = it8718;

1453

sio_data->type = it8718;

1453

break;

1454

break;

1454

case IT8720F_DEVID:

1455

case IT8720F_DEVID:

1455

sio_data->type = it8720;

1456

sio_data->type = it8720;

1456

break;

1457

break;

1457

case 0xffff: /* No device at all */

1458

case 0xffff: /* No device at all */

1458

goto exit;

1459

goto exit;

1459

default:

1460

default:

1460

pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%x)\n",

1461

pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%x)\n",

1461

chip_type);

1462

chip_type);

1462

goto exit;

1463

goto exit;

1463

}

1464

}

1464

1465

superio_select(PME);

1466

superio_select(PME);

1466

if (!(superio_inb(IT87_ACT_REG) & 0x01)) {

1467

if (!(superio_inb(IT87_ACT_REG) & 0x01)) {

1467

pr_info("it87: Device not activated, skipping\n");

1468

pr_info("it87: Device not activated, skipping\n");

1468

goto exit;

1469

goto exit;

1469

}

1470

}

1470

1471

*address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1);

1472

*address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1);

1472

if (*address == 0) {

1473

if (*address == 0) {

1473

pr_info("it87: Base address not set, skipping\n");

1474

pr_info("it87: Base address not set, skipping\n");

1474

goto exit;

1475

goto exit;

1475

}

1476

}

1476

1477

err = 0;

1478

err = 0;

1478

sio_data->revision = superio_inb(DEVREV) & 0x0f;

1479

sio_data->revision = superio_inb(DEVREV) & 0x0f;

1479

pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n",

1480

pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n",

1480

chip_type, *address, sio_data->revision);

1481

chip_type, *address, sio_data->revision);

1481

1482

/* Read GPIO config and VID value from LDN 7 (GPIO) */

1483

/* Read GPIO config and VID value from LDN 7 (GPIO) */

1483

if (sio_data->type == it87) {

1484

if (sio_data->type == it87) {

1484

/* The IT8705F doesn't have VID pins at all */

1485

/* The IT8705F doesn't have VID pins at all */

1485

sio_data->skip_vid = 1;

1486

sio_data->skip_vid = 1;

1486

1487

/* The IT8705F has a different LD number for GPIO */

1488

/* The IT8705F has a different LD number for GPIO */

1488

superio_select(5);

1489

superio_select(5);

1489

sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;

1490

sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;

1490

} else {

1491

} else {

1491

int reg;

1492

int reg;

1492

1493

superio_select(GPIO);

1494

superio_select(GPIO);

1494

/* We need at least 4 VID pins */

1495

/* We need at least 4 VID pins */

1495

reg = superio_inb(IT87_SIO_GPIO3_REG);

1496

reg = superio_inb(IT87_SIO_GPIO3_REG);

1496

if (reg & 0x0f) {

1497

if (reg & 0x0f) {

1497

pr_info("it87: VID is disabled (pins used for GPIO)\n");

1498

pr_info("it87: VID is disabled (pins used for GPIO)\n");

1498

sio_data->skip_vid = 1;

1499

sio_data->skip_vid = 1;

1499

}

1500

}

1500

1501

/* Check if fan3 is there or not */

1502

/* Check if fan3 is there or not */

1502

if (reg & (1 << 6))

1503

if (reg & (1 << 6))

1503

sio_data->skip_pwm |= (1 << 2);

1504

sio_data->skip_pwm |= (1 << 2);

1504

if (reg & (1 << 7))

1505

if (reg & (1 << 7))

1505

sio_data->skip_fan |= (1 << 2);

1506

sio_data->skip_fan |= (1 << 2);

1506

1507

/* Check if fan2 is there or not */

1508

/* Check if fan2 is there or not */

1508

reg = superio_inb(IT87_SIO_GPIO5_REG);

1509

reg = superio_inb(IT87_SIO_GPIO5_REG);

1509

if (reg & (1 << 1))

1510

if (reg & (1 << 1))

1510

sio_data->skip_pwm |= (1 << 1);

1511

sio_data->skip_pwm |= (1 << 1);

1511

if (reg & (1 << 2))

1512

if (reg & (1 << 2))

1512

sio_data->skip_fan |= (1 << 1);

1513

sio_data->skip_fan |= (1 << 1);

1513

1514

if ((sio_data->type == it8718 || sio_data->type == it8720)

1515

if ((sio_data->type == it8718 || sio_data->type == it8720)

1515

&& !(sio_data->skip_vid))

1516

&& !(sio_data->skip_vid))

1516

sio_data->vid_value = superio_inb(IT87_SIO_VID_REG);

1517

sio_data->vid_value = superio_inb(IT87_SIO_VID_REG);

1517

1518

reg = superio_inb(IT87_SIO_PINX2_REG);

1519

reg = superio_inb(IT87_SIO_PINX2_REG);

1519

if (reg & (1 << 0))

1520

if (reg & (1 << 0))

1520

pr_info("it87: in3 is VCC (+5V)\n");

1521

pr_info("it87: in3 is VCC (+5V)\n");

1521

if (reg & (1 << 1))

1522

if (reg & (1 << 1))

1522

pr_info("it87: in7 is VCCH (+5V Stand-By)\n");

1523

pr_info("it87: in7 is VCCH (+5V Stand-By)\n");

1523

1524

sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;

1525

sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;

1525

}

1526

}

1526

if (sio_data->beep_pin)

1527

if (sio_data->beep_pin)

1527

pr_info("it87: Beeping is supported\n");

1528

pr_info("it87: Beeping is supported\n");

1528

1529

/* Disable specific features based on DMI strings */

1530

/* Disable specific features based on DMI strings */

1530

board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);

1531

board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);

1531

board_name = dmi_get_system_info(DMI_BOARD_NAME);

1532

board_name = dmi_get_system_info(DMI_BOARD_NAME);

1532

if (board_vendor && board_name) {

1533

if (board_vendor && board_name) {

1533

if (strcmp(board_vendor, "nVIDIA") == 0

1534

if (strcmp(board_vendor, "nVIDIA") == 0

1534

&& strcmp(board_name, "FN68PT") == 0) {

1535

&& strcmp(board_name, "FN68PT") == 0) {

1535

/* On the Shuttle SN68PT, FAN_CTL2 is apparently not

1536

/* On the Shuttle SN68PT, FAN_CTL2 is apparently not

1536

connected to a fan, but to something else. One user

1537

connected to a fan, but to something else. One user

1537

has reported instant system power-off when changing

1538

has reported instant system power-off when changing

1538

the PWM2 duty cycle, so we disable it.

1539

the PWM2 duty cycle, so we disable it.

1539

I use the board name string as the trigger in case

1540

I use the board name string as the trigger in case

1540

the same board is ever used in other systems. */

1541

the same board is ever used in other systems. */

1541

pr_info("it87: Disabling pwm2 due to "

1542

pr_info("it87: Disabling pwm2 due to "

1542

"hardware constraints\n");

1543

"hardware constraints\n");

1543

sio_data->skip_pwm = (1 << 1);

1544

sio_data->skip_pwm = (1 << 1);

1544

}

1545

}

1545

}

1546

}

1546

1547

exit:

1548

exit:

1548

superio_exit();

1549

superio_exit();

1549

return err;

1550

return err;

1550

}

1551

}

1551

1552

static void it87_remove_files(struct device *dev)

1553

static void it87_remove_files(struct device *dev)

1553

{

1554

{

1554

struct it87_data *data = platform_get_drvdata(pdev);

1555

struct it87_data *data = platform_get_drvdata(pdev);

1555

struct it87_sio_data *sio_data = dev->platform_data;

1556

struct it87_sio_data *sio_data = dev->platform_data;

1556

const struct attribute_group *fan_group = it87_get_fan_group(data);

1557

const struct attribute_group *fan_group = it87_get_fan_group(data);

1557

int i;

1558

int i;

1558

1559

sysfs_remove_group(&dev->kobj, &it87_group);

1560

sysfs_remove_group(&dev->kobj, &it87_group);

1560

if (sio_data->beep_pin)

1561

if (sio_data->beep_pin)

1561

sysfs_remove_group(&dev->kobj, &it87_group_beep);

1562

sysfs_remove_group(&dev->kobj, &it87_group_beep);

1562

for (i = 0; i < 5; i++) {

1563

for (i = 0; i < 5; i++) {

1563

if (!(data->has_fan & (1 << i)))

1564

if (!(data->has_fan & (1 << i)))

1564

continue;

1565

continue;

1565

sysfs_remove_group(&dev->kobj, &fan_group[i]);

1566

sysfs_remove_group(&dev->kobj, &fan_group[i]);

1566

if (sio_data->beep_pin)

1567

if (sio_data->beep_pin)

1567

sysfs_remove_file(&dev->kobj,

1568

sysfs_remove_file(&dev->kobj,

1568

it87_attributes_fan_beep[i]);

1569

it87_attributes_fan_beep[i]);

1569

}

1570

}

1570

for (i = 0; i < 3; i++) {

1571

for (i = 0; i < 3; i++) {

1571

if (sio_data->skip_pwm & (1 << 0))

1572

if (sio_data->skip_pwm & (1 << 0))

1572

continue;

1573

continue;

1573

sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]);

1574

sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]);

1574

if (has_old_autopwm(data))

1575

if (has_old_autopwm(data))

1575

sysfs_remove_group(&dev->kobj,

1576

sysfs_remove_group(&dev->kobj,

1576

&it87_group_autopwm[i]);

1577

&it87_group_autopwm[i]);

1577

}

1578

}

1578

if (!sio_data->skip_vid)

1579

if (!sio_data->skip_vid)

1579

sysfs_remove_group(&dev->kobj, &it87_group_vid);

1580

sysfs_remove_group(&dev->kobj, &it87_group_vid);

1580

}

1581

}

1581

1582

static int __devinit it87_probe(struct platform_device *pdev)

1583

static int __devinit it87_probe(struct platform_device *pdev)

1583

{

1584

{

1584

struct it87_data *data;

1585

struct it87_data *data;

1585

struct resource *res;

1586

struct resource *res;

1586

struct device *dev = &pdev->dev;

1587

struct device *dev = &pdev->dev;

1587

struct it87_sio_data *sio_data = dev->platform_data;

1588

struct it87_sio_data *sio_data = dev->platform_data;

1588

const struct attribute_group *fan_group;

1589

const struct attribute_group *fan_group;

1589

int err = 0, i;

1590

int err = 0, i;

1590

int enable_pwm_interface;

1591

int enable_pwm_interface;

1591

int fan_beep_need_rw;

1592

int fan_beep_need_rw;

1592

static const char *names[] = {

1593

static const char *names[] = {

1593

"it87",

1594

"it87",

1594

"it8712",

1595

"it8712",

1595

"it8716",

1596

"it8716",

1596

"it8718",

1597

"it8718",

1597

"it8720",

1598

"it8720",

1598

};

1599

};

1599

1600

res = platform_get_resource(pdev, IORESOURCE_IO, 0);

1601

res = platform_get_resource(pdev, IORESOURCE_IO, 0);

1601

if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) {

1602

if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) {

1602

dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",

1603

dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",

1603

(unsigned long)res->start,

1604

(unsigned long)res->start,

1604

(unsigned long)(res->start + IT87_EC_EXTENT - 1));

1605

(unsigned long)(res->start + IT87_EC_EXTENT - 1));

1605

err = -EBUSY;

1606

err = -EBUSY;

1606

goto ERROR0;

1607

goto ERROR0;

1607

}

1608

}

1608

1609

data = kzalloc(sizeof(struct it87_data), GFP_KERNEL);

1610

data = kzalloc(sizeof(struct it87_data), GFP_KERNEL);

1610

if (!data) {

1611

if (!data) {

1611

err = -ENOMEM;

1612

err = -ENOMEM;

1612

goto ERROR1;

1613

goto ERROR1;

1613

}

1614

}

1614

1615

data->addr = res->start;

1616

data->addr = res->start;

1616

data->type = sio_data->type;

1617

data->type = sio_data->type;

1617

data->revision = sio_data->revision;

1618

data->revision = sio_data->revision;

1618

data->name = names[sio_data->type];

1619

data->name = names[sio_data->type];

1619

1620

/* Now, we do the remaining detection. */

1621

/* Now, we do the remaining detection. */

1621

if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80)

1622

if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80)

1622

|| it87_read_value(data, IT87_REG_CHIPID) != 0x90) {

1623

|| it87_read_value(data, IT87_REG_CHIPID) != 0x90) {

1623

err = -ENODEV;

1624

err = -ENODEV;

1624

goto ERROR2;

1625

goto ERROR2;

1625

}

1626

}

1626

1627

platform_set_drvdata(pdev, data);

1628

platform_set_drvdata(pdev, data);

1628

1629

mutex_init(&data->update_lock);

1630

mutex_init(&data->update_lock);

1630

1631

/* Check PWM configuration */

1632

/* Check PWM configuration */

1632

enable_pwm_interface = it87_check_pwm(dev);

1633

enable_pwm_interface = it87_check_pwm(dev);

1633

1634

/* Initialize the IT87 chip */

1635

/* Initialize the IT87 chip */

1635

it87_init_device(pdev);

1636

it87_init_device(pdev);

1636

1637

/* Register sysfs hooks */

1638

/* Register sysfs hooks */

1638

err = sysfs_create_group(&dev->kobj, &it87_group);

1639

err = sysfs_create_group(&dev->kobj, &it87_group);

1639

if (err)

1640

if (err)

1640

goto ERROR2;

1641

goto ERROR2;

1641

1642

if (sio_data->beep_pin) {

1643

if (sio_data->beep_pin) {

1643

err = sysfs_create_group(&dev->kobj, &it87_group_beep);

1644

err = sysfs_create_group(&dev->kobj, &it87_group_beep);

1644

if (err)

1645

if (err)

1645

goto ERROR4;

1646

goto ERROR4;

1646

}

1647

}

1647

1648

/* Do not create fan files for disabled fans */

1649

/* Do not create fan files for disabled fans */

1649

fan_group = it87_get_fan_group(data);

1650

fan_group = it87_get_fan_group(data);

1650

fan_beep_need_rw = 1;

1651

fan_beep_need_rw = 1;

1651

for (i = 0; i < 5; i++) {

1652

for (i = 0; i < 5; i++) {

1652

if (!(data->has_fan & (1 << i)))

1653

if (!(data->has_fan & (1 << i)))

1653

continue;

1654

continue;

1654

err = sysfs_create_group(&dev->kobj, &fan_group[i]);

1655

err = sysfs_create_group(&dev->kobj, &fan_group[i]);

1655

if (err)

1656

if (err)

1656

goto ERROR4;

1657

goto ERROR4;

1657

1658

if (sio_data->beep_pin) {

1659

if (sio_data->beep_pin) {

1659

err = sysfs_create_file(&dev->kobj,

1660

err = sysfs_create_file(&dev->kobj,

1660

it87_attributes_fan_beep[i]);

1661

it87_attributes_fan_beep[i]);

1661

if (err)

1662

if (err)

1662

goto ERROR4;

1663

goto ERROR4;

1663

if (!fan_beep_need_rw)

1664

if (!fan_beep_need_rw)

1664

continue;

1665

continue;

1665

1666

/* As we have a single beep enable bit for all fans,

1667

/* As we have a single beep enable bit for all fans,

1667

* only the first enabled fan has a writable attribute

1668

* only the first enabled fan has a writable attribute

1668

* for it. */

1669

* for it. */

1669

if (sysfs_chmod_file(&dev->kobj,

1670

if (sysfs_chmod_file(&dev->kobj,

1670

it87_attributes_fan_beep[i],

1671

it87_attributes_fan_beep[i],

1671

S_IRUGO | S_IWUSR))

1672

S_IRUGO | S_IWUSR))

1672

dev_dbg(dev, "chmod +w fan%d_beep failed\n",

1673

dev_dbg(dev, "chmod +w fan%d_beep failed\n",

1673

i + 1);

1674

i + 1);

1674

fan_beep_need_rw = 0;

1675

fan_beep_need_rw = 0;

1675

}

1676

}

1676

}

1677

}

1677

1678

if (enable_pwm_interface) {

1679

if (enable_pwm_interface) {

1679

for (i = 0; i < 3; i++) {

1680

for (i = 0; i < 3; i++) {

1680

if (sio_data->skip_pwm & (1 << i))

1681

if (sio_data->skip_pwm & (1 << i))

1681

continue;

1682

continue;

1682

err = sysfs_create_group(&dev->kobj,

1683

err = sysfs_create_group(&dev->kobj,

1683

&it87_group_pwm[i]);

1684

&it87_group_pwm[i]);

1684

if (err)

1685

if (err)

1685

goto ERROR4;

1686

goto ERROR4;

1686

1687

if (!has_old_autopwm(data))

1688

if (!has_old_autopwm(data))

1688

continue;

1689

continue;

1689

err = sysfs_create_group(&dev->kobj,

1690

err = sysfs_create_group(&dev->kobj,

1690

&it87_group_autopwm[i]);

1691

&it87_group_autopwm[i]);

1691

if (err)

1692

if (err)

1692

goto ERROR4;

1693

goto ERROR4;

1693

}

1694

}

1694

}

1695

}

1695

1696

if (!sio_data->skip_vid) {

1697

if (!sio_data->skip_vid) {

1697

data->vrm = vid_which_vrm();

1698

data->vrm = vid_which_vrm();

1698

/* VID reading from Super-I/O config space if available */

1699

/* VID reading from Super-I/O config space if available */

1699

data->vid = sio_data->vid_value;

1700

data->vid = sio_data->vid_value;

1700

err = sysfs_create_group(&dev->kobj, &it87_group_vid);

1701

err = sysfs_create_group(&dev->kobj, &it87_group_vid);

1701

if (err)

1702

if (err)

1702

goto ERROR4;

1703

goto ERROR4;

1703

}

1704

}

1704

1705

data->hwmon_dev = hwmon_device_register(dev);

1706

data->hwmon_dev = hwmon_device_register(dev);

1706

if (IS_ERR(data->hwmon_dev)) {

1707

if (IS_ERR(data->hwmon_dev)) {

1707

err = PTR_ERR(data->hwmon_dev);

1708

err = PTR_ERR(data->hwmon_dev);

1708

goto ERROR4;

1709

goto ERROR4;

1709

}

1710

}

1710

1711

return 0;

1712

return 0;

1712

1713

ERROR4:

1714

ERROR4:

1714

it87_remove_files(dev);

1715

it87_remove_files(dev);

1715

ERROR2:

1716

ERROR2:

1716

platform_set_drvdata(pdev, NULL);

1717

platform_set_drvdata(pdev, NULL);

1717

kfree(data);

1718

kfree(data);

1718

ERROR1:

1719

ERROR1:

1719

release_region(res->start, IT87_EC_EXTENT);

1720

release_region(res->start, IT87_EC_EXTENT);

1720

ERROR0:

1721

ERROR0:

1721

return err;

1722

return err;

1722

}

1723

}

1723

1724

static int __devexit it87_remove(struct platform_device *pdev)

1725

static int __devexit it87_remove(struct platform_device *pdev)

1725

{

1726

{

1726

struct it87_data *data = platform_get_drvdata(pdev);

1727

struct it87_data *data = platform_get_drvdata(pdev);

1727

1728

hwmon_device_unregister(data->hwmon_dev);

1729

hwmon_device_unregister(data->hwmon_dev);

1729

it87_remove_files(&pdev->dev);

1730

it87_remove_files(&pdev->dev);

1730

1731

release_region(data->addr, IT87_EC_EXTENT);

1732

release_region(data->addr, IT87_EC_EXTENT);

1732

platform_set_drvdata(pdev, NULL);

1733

platform_set_drvdata(pdev, NULL);

1733

kfree(data);

1734

kfree(data);

1734

1735

return 0;

1736

return 0;

1736

}

1737

}

1737

1738

/* Must be called with data->update_lock held, except during initialization.

1739

/* Must be called with data->update_lock held, except during initialization.

1739

We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,

1740

We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,

1740

would slow down the IT87 access and should not be necessary. */

1741

would slow down the IT87 access and should not be necessary. */

1741

static int it87_read_value(struct it87_data *data, u8 reg)

1742

static int it87_read_value(struct it87_data *data, u8 reg)

1742

{

1743

{

1743

outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);

1744

outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);

1744

return inb_p(data->addr + IT87_DATA_REG_OFFSET);

1745

return inb_p(data->addr + IT87_DATA_REG_OFFSET);

1745

}

1746

}

1746

1747

/* Must be called with data->update_lock held, except during initialization.

1748

/* Must be called with data->update_lock held, except during initialization.

1748

We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,

1749

We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,

1749

would slow down the IT87 access and should not be necessary. */

1750

would slow down the IT87 access and should not be necessary. */

1750

static void it87_write_value(struct it87_data *data, u8 reg, u8 value)

1751

static void it87_write_value(struct it87_data *data, u8 reg, u8 value)

1751

{

1752

{

1752

outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);

1753

outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);

1753

outb_p(value, data->addr + IT87_DATA_REG_OFFSET);

1754

outb_p(value, data->addr + IT87_DATA_REG_OFFSET);

1754

}

1755

}

1755

1756

/* Return 1 if and only if the PWM interface is safe to use */

1757

/* Return 1 if and only if the PWM interface is safe to use */

1757

static int __devinit it87_check_pwm(struct device *dev)

1758

static int __devinit it87_check_pwm(struct device *dev)

1758

{

1759

{

1759

struct it87_data *data = dev_get_drvdata(dev);

1760

struct it87_data *data = dev_get_drvdata(dev);

1760

/* Some BIOSes fail to correctly configure the IT87 fans. All fans off

1761

/* Some BIOSes fail to correctly configure the IT87 fans. All fans off

1761

* and polarity set to active low is sign that this is the case so we

1762

* and polarity set to active low is sign that this is the case so we

1762

* disable pwm control to protect the user. */

1763

* disable pwm control to protect the user. */

1763

int tmp = it87_read_value(data, IT87_REG_FAN_CTL);

1764

int tmp = it87_read_value(data, IT87_REG_FAN_CTL);

1764

if ((tmp & 0x87) == 0) {

1765

if ((tmp & 0x87) == 0) {

1765

if (fix_pwm_polarity) {

1766

if (fix_pwm_polarity) {

1766

/* The user asks us to attempt a chip reconfiguration.

1767

/* The user asks us to attempt a chip reconfiguration.

1767

* This means switching to active high polarity and

1768

* This means switching to active high polarity and

1768

* inverting all fan speed values. */

1769

* inverting all fan speed values. */

1769

int i;

1770

int i;

1770

u8 pwm[3];

1771

u8 pwm[3];

1771

1772

for (i = 0; i < 3; i++)

1773

for (i = 0; i < 3; i++)

1773

pwm[i] = it87_read_value(data,

1774

pwm[i] = it87_read_value(data,

1774

IT87_REG_PWM(i));

1775

IT87_REG_PWM(i));

1775

1776

/* If any fan is in automatic pwm mode, the polarity

1777

/* If any fan is in automatic pwm mode, the polarity

1777

* might be correct, as suspicious as it seems, so we

1778

* might be correct, as suspicious as it seems, so we

1778

* better don't change anything (but still disable the

1779

* better don't change anything (but still disable the

1779

* PWM interface). */

1780

* PWM interface). */

1780

if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) {

1781

if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) {

1781

dev_info(dev, "Reconfiguring PWM to "

1782

dev_info(dev, "Reconfiguring PWM to "

1782

"active high polarity\n");

1783

"active high polarity\n");

1783

it87_write_value(data, IT87_REG_FAN_CTL,

1784

it87_write_value(data, IT87_REG_FAN_CTL,

1784

tmp | 0x87);

1785

tmp | 0x87);

1785

for (i = 0; i < 3; i++)

1786

for (i = 0; i < 3; i++)

1786

it87_write_value(data,

1787

it87_write_value(data,

1787

IT87_REG_PWM(i),

1788

IT87_REG_PWM(i),

1788

0x7f & ~pwm[i]);

1789

0x7f & ~pwm[i]);

1789

return 1;

1790

return 1;

1790

}

1791

}

1791

1792

dev_info(dev, "PWM configuration is "

1793

dev_info(dev, "PWM configuration is "

1793

"too broken to be fixed\n");

1794

"too broken to be fixed\n");

1794

}

1795

}

1795

1796

dev_info(dev, "Detected broken BIOS "

1797

dev_info(dev, "Detected broken BIOS "

1797

"defaults, disabling PWM interface\n");

1798

"defaults, disabling PWM interface\n");

1798

return 0;

1799

return 0;

1799

} else if (fix_pwm_polarity) {

1800

} else if (fix_pwm_polarity) {

1800

dev_info(dev, "PWM configuration looks "

1801

dev_info(dev, "PWM configuration looks "

1801

"sane, won't touch\n");

1802

"sane, won't touch\n");

1802

}

1803

}

1803

1804

return 1;

1805

return 1;

1805

}

1806

}

1806

1807

/* Called when we have found a new IT87. */

1808

/* Called when we have found a new IT87. */

1808

static void __devinit it87_init_device(struct platform_device *pdev)

1809

static void __devinit it87_init_device(struct platform_device *pdev)

1809

{

1810

{

1810

struct it87_sio_data *sio_data = pdev->dev.platform_data;

1811

struct it87_sio_data *sio_data = pdev->dev.platform_data;

1811

struct it87_data *data = platform_get_drvdata(pdev);

1812

struct it87_data *data = platform_get_drvdata(pdev);

1812

int tmp, i;

1813

int tmp, i;

1813

u8 mask;

1814

u8 mask;

1814

1815

/* For each PWM channel:

1816

/* For each PWM channel:

1816

* - If it is in automatic mode, setting to manual mode should set

1817

* - If it is in automatic mode, setting to manual mode should set

1817

* the fan to full speed by default.

1818

* the fan to full speed by default.

1818

* - If it is in manual mode, we need a mapping to temperature

1819

* - If it is in manual mode, we need a mapping to temperature

1819

* channels to use when later setting to automatic mode later.

1820

* channels to use when later setting to automatic mode later.

1820

* Use a 1:1 mapping by default (we are clueless.)

1821

* Use a 1:1 mapping by default (we are clueless.)

1821

* In both cases, the value can (and should) be changed by the user

1822

* In both cases, the value can (and should) be changed by the user

1822

* prior to switching to a different mode. */

1823

* prior to switching to a different mode. */

1823

for (i = 0; i < 3; i++) {

1824

for (i = 0; i < 3; i++) {

1824

data->pwm_temp_map[i] = i;

1825

data->pwm_temp_map[i] = i;

1825

data->pwm_duty[i] = 0x7f; /* Full speed */

1826

data->pwm_duty[i] = 0x7f; /* Full speed */

1826

data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */

1827

data->auto_pwm[i][3] = 0x7f; /* Full speed, hard-coded */

1827

}

1828

}

1828

1829

/* Some chips seem to have default value 0xff for all limit

1830

/* Some chips seem to have default value 0xff for all limit

1830

* registers. For low voltage limits it makes no sense and triggers

1831

* registers. For low voltage limits it makes no sense and triggers

1831

* alarms, so change to 0 instead. For high temperature limits, it

1832

* alarms, so change to 0 instead. For high temperature limits, it

1832

* means -1 degree C, which surprisingly doesn't trigger an alarm,

1833

* means -1 degree C, which surprisingly doesn't trigger an alarm,

1833

* but is still confusing, so change to 127 degrees C. */

1834

* but is still confusing, so change to 127 degrees C. */

1834

for (i = 0; i < 8; i++) {

1835

for (i = 0; i < 8; i++) {

1835

tmp = it87_read_value(data, IT87_REG_VIN_MIN(i));

1836

tmp = it87_read_value(data, IT87_REG_VIN_MIN(i));

1836

if (tmp == 0xff)

1837

if (tmp == 0xff)

1837

it87_write_value(data, IT87_REG_VIN_MIN(i), 0);

1838

it87_write_value(data, IT87_REG_VIN_MIN(i), 0);

1838

}

1839

}

1839

for (i = 0; i < 3; i++) {

1840

for (i = 0; i < 3; i++) {

1840

tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i));

1841

tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i));

1841

if (tmp == 0xff)

1842

if (tmp == 0xff)

1842

it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127);

1843

it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127);

1843

}

1844

}

1844

1845

/* Temperature channels are not forcibly enabled, as they can be

1846

/* Temperature channels are not forcibly enabled, as they can be

1846

* set to two different sensor types and we can't guess which one

1847

* set to two different sensor types and we can't guess which one

1847

* is correct for a given system. These channels can be enabled at

1848

* is correct for a given system. These channels can be enabled at

1848

* run-time through the temp{1-3}_type sysfs accessors if needed. */

1849

* run-time through the temp{1-3}_type sysfs accessors if needed. */

1849

1850

/* Check if voltage monitors are reset manually or by some reason */

1851

/* Check if voltage monitors are reset manually or by some reason */

1851

tmp = it87_read_value(data, IT87_REG_VIN_ENABLE);

1852

tmp = it87_read_value(data, IT87_REG_VIN_ENABLE);

1852

if ((tmp & 0xff) == 0) {

1853

if ((tmp & 0xff) == 0) {

1853

/* Enable all voltage monitors */

1854

/* Enable all voltage monitors */

1854

it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff);

1855

it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff);

1855

}

1856

}

1856

1857

/* Check if tachometers are reset manually or by some reason */

1858

/* Check if tachometers are reset manually or by some reason */

1858

mask = 0x70 & ~(sio_data->skip_fan << 4);

1859

mask = 0x70 & ~(sio_data->skip_fan << 4);

1859

data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL);

1860

data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL);

1860

if ((data->fan_main_ctrl & mask) == 0) {

1861

if ((data->fan_main_ctrl & mask) == 0) {

1861

/* Enable all fan tachometers */

1862

/* Enable all fan tachometers */

1862

data->fan_main_ctrl |= mask;

1863

data->fan_main_ctrl |= mask;

1863

it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,

1864

it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,

1864

data->fan_main_ctrl);

1865

data->fan_main_ctrl);

1865

}

1866

}

1866

data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;

1867

data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;

1867

1868

/* Set tachometers to 16-bit mode if needed */

1869

/* Set tachometers to 16-bit mode if needed */

1869

if (has_16bit_fans(data)) {

1870

if (has_16bit_fans(data)) {

1870

tmp = it87_read_value(data, IT87_REG_FAN_16BIT);

1871

tmp = it87_read_value(data, IT87_REG_FAN_16BIT);

1871

if (~tmp & 0x07 & data->has_fan) {

1872

if (~tmp & 0x07 & data->has_fan) {

1872

dev_dbg(&pdev->dev,

1873

dev_dbg(&pdev->dev,

1873

"Setting fan1-3 to 16-bit mode\n");

1874

"Setting fan1-3 to 16-bit mode\n");

1874

it87_write_value(data, IT87_REG_FAN_16BIT,

1875

it87_write_value(data, IT87_REG_FAN_16BIT,

1875

tmp | 0x07);

1876

tmp | 0x07);

1876

}

1877

}

1877

/* IT8705F only supports three fans. */

1878

/* IT8705F only supports three fans. */

1878

if (data->type != it87) {

1879

if (data->type != it87) {

1879

if (tmp & (1 << 4))

1880

if (tmp & (1 << 4))

1880

data->has_fan |= (1 << 3); /* fan4 enabled */

1881

data->has_fan |= (1 << 3); /* fan4 enabled */

1881

if (tmp & (1 << 5))

1882

if (tmp & (1 << 5))

1882

data->has_fan |= (1 << 4); /* fan5 enabled */

1883

data->has_fan |= (1 << 4); /* fan5 enabled */

1883

}

1884

}

1884

}

1885

}

1885

1886

/* Fan input pins may be used for alternative functions */

1887

/* Fan input pins may be used for alternative functions */

1887

data->has_fan &= ~sio_data->skip_fan;

1888

data->has_fan &= ~sio_data->skip_fan;

1888

1889

/* Start monitoring */

1890

/* Start monitoring */

1890

it87_write_value(data, IT87_REG_CONFIG,

1891

it87_write_value(data, IT87_REG_CONFIG,

1891

(it87_read_value(data, IT87_REG_CONFIG) & 0x36)

1892

(it87_read_value(data, IT87_REG_CONFIG) & 0x36)

1892

| (update_vbat ? 0x41 : 0x01));

1893

| (update_vbat ? 0x41 : 0x01));

1893

}

1894

}

1894

1895

static void it87_update_pwm_ctrl(struct it87_data *data, int nr)

1896

static void it87_update_pwm_ctrl(struct it87_data *data, int nr)

1896

{

1897

{

1897

data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr));

1898

data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr));

1898

if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */

1899

if (data->pwm_ctrl[nr] & 0x80) /* Automatic mode */

1899

data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;

1900

data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;

1900

else /* Manual mode */

1901

else /* Manual mode */

1901

data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f;

1902

data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f;

1902

1903

if (has_old_autopwm(data)) {

1904

if (has_old_autopwm(data)) {

1904

int i;

1905

int i;

1905

1906

for (i = 0; i < 5 ; i++)

1907

for (i = 0; i < 5 ; i++)

1907

data->auto_temp[nr][i] = it87_read_value(data,

1908

data->auto_temp[nr][i] = it87_read_value(data,

1908

IT87_REG_AUTO_TEMP(nr, i));

1909

IT87_REG_AUTO_TEMP(nr, i));

1909

for (i = 0; i < 3 ; i++)

1910

for (i = 0; i < 3 ; i++)

1910

data->auto_pwm[nr][i] = it87_read_value(data,

1911

data->auto_pwm[nr][i] = it87_read_value(data,

1911

IT87_REG_AUTO_PWM(nr, i));

1912

IT87_REG_AUTO_PWM(nr, i));

1912

}

1913

}

1913

}

1914

}

1914

1915

static struct it87_data *it87_update_device(struct device *dev)

1916

static struct it87_data *it87_update_device(struct device *dev)

1916

{

1917

{

1917

struct it87_data *data = dev_get_drvdata(dev);

1918

struct it87_data *data = dev_get_drvdata(dev);

1918

int i;

1919

int i;

1919

1920

mutex_lock(&data->update_lock);

1921

mutex_lock(&data->update_lock);

1921

1922

if (time_after(jiffies, data->last_updated + HZ + HZ / 2)

1923

if (time_after(jiffies, data->last_updated + HZ + HZ / 2)

1923

|| !data->valid) {

1924

|| !data->valid) {

1924

if (update_vbat) {

1925

if (update_vbat) {

1925

/* Cleared after each update, so reenable. Value

1926

/* Cleared after each update, so reenable. Value

1926

returned by this read will be previous value */

1927

returned by this read will be previous value */

1927

it87_write_value(data, IT87_REG_CONFIG,

1928

it87_write_value(data, IT87_REG_CONFIG,

1928

it87_read_value(data, IT87_REG_CONFIG) | 0x40);

1929

it87_read_value(data, IT87_REG_CONFIG) | 0x40);

1929

}

1930

}

1930

for (i = 0; i <= 7; i++) {

1931

for (i = 0; i <= 7; i++) {

1931

data->in[i] =

1932

data->in[i] =

1932

it87_read_value(data, IT87_REG_VIN(i));

1933

it87_read_value(data, IT87_REG_VIN(i));

1933

data->in_min[i] =

1934

data->in_min[i] =

1934

it87_read_value(data, IT87_REG_VIN_MIN(i));

1935

it87_read_value(data, IT87_REG_VIN_MIN(i));

1935

data->in_max[i] =

1936

data->in_max[i] =

1936

it87_read_value(data, IT87_REG_VIN_MAX(i));

1937

it87_read_value(data, IT87_REG_VIN_MAX(i));

1937

}

1938

}

1938

/* in8 (battery) has no limit registers */

1939

/* in8 (battery) has no limit registers */

1939

data->in[8] = it87_read_value(data, IT87_REG_VIN(8));

1940

data->in[8] = it87_read_value(data, IT87_REG_VIN(8));

1940

1941

for (i = 0; i < 5; i++) {

1942

for (i = 0; i < 5; i++) {

1942

/* Skip disabled fans */

1943

/* Skip disabled fans */

1943

if (!(data->has_fan & (1 << i)))

1944

if (!(data->has_fan & (1 << i)))

1944

continue;

1945

continue;

1945

1946

data->fan_min[i] =

1947

data->fan_min[i] =

1947

it87_read_value(data, IT87_REG_FAN_MIN[i]);

1948

it87_read_value(data, IT87_REG_FAN_MIN[i]);

1948

data->fan[i] = it87_read_value(data,

1949

data->fan[i] = it87_read_value(data,

1949

IT87_REG_FAN[i]);

1950

IT87_REG_FAN[i]);

1950

/* Add high byte if in 16-bit mode */

1951

/* Add high byte if in 16-bit mode */

1951

if (has_16bit_fans(data)) {

1952

if (has_16bit_fans(data)) {

1952

data->fan[i] |= it87_read_value(data,

1953

data->fan[i] |= it87_read_value(data,

1953

IT87_REG_FANX[i]) << 8;

1954

IT87_REG_FANX[i]) << 8;

1954

data->fan_min[i] |= it87_read_value(data,

1955

data->fan_min[i] |= it87_read_value(data,

1955

IT87_REG_FANX_MIN[i]) << 8;

1956

IT87_REG_FANX_MIN[i]) << 8;

1956

}

1957

}

1957

}

1958

}

1958

for (i = 0; i < 3; i++) {

1959

for (i = 0; i < 3; i++) {

1959

data->temp[i] =

1960

data->temp[i] =

1960

it87_read_value(data, IT87_REG_TEMP(i));

1961

it87_read_value(data, IT87_REG_TEMP(i));

1961

data->temp_high[i] =

1962

data->temp_high[i] =

1962

it87_read_value(data, IT87_REG_TEMP_HIGH(i));

1963

it87_read_value(data, IT87_REG_TEMP_HIGH(i));

1963

data->temp_low[i] =

1964

data->temp_low[i] =

1964

it87_read_value(data, IT87_REG_TEMP_LOW(i));

1965

it87_read_value(data, IT87_REG_TEMP_LOW(i));

1965

}

1966

}

1966

1967

/* Newer chips don't have clock dividers */

1968

/* Newer chips don't have clock dividers */

1968

if ((data->has_fan & 0x07) && !has_16bit_fans(data)) {

1969

if ((data->has_fan & 0x07) && !has_16bit_fans(data)) {

1969

i = it87_read_value(data, IT87_REG_FAN_DIV);

1970

i = it87_read_value(data, IT87_REG_FAN_DIV);

1970

data->fan_div[0] = i & 0x07;

1971

data->fan_div[0] = i & 0x07;

1971

data->fan_div[1] = (i >> 3) & 0x07;

1972

data->fan_div[1] = (i >> 3) & 0x07;

1972

data->fan_div[2] = (i & 0x40) ? 3 : 1;

1973

data->fan_div[2] = (i & 0x40) ? 3 : 1;

1973

}

1974

}

1974

1975

data->alarms =

1976

data->alarms =

1976

it87_read_value(data, IT87_REG_ALARM1) |

1977

it87_read_value(data, IT87_REG_ALARM1) |

1977

(it87_read_value(data, IT87_REG_ALARM2) << 8) |

1978

(it87_read_value(data, IT87_REG_ALARM2) << 8) |

1978

(it87_read_value(data, IT87_REG_ALARM3) << 16);

1979

(it87_read_value(data, IT87_REG_ALARM3) << 16);

1979

data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);

1980

data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);

1980

1981

data->fan_main_ctrl = it87_read_value(data,

1982

data->fan_main_ctrl = it87_read_value(data,

1982

IT87_REG_FAN_MAIN_CTRL);

1983

IT87_REG_FAN_MAIN_CTRL);

1983

data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL);

1984

data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL);

1984

for (i = 0; i < 3; i++)

1985

for (i = 0; i < 3; i++)

1985

it87_update_pwm_ctrl(data, i);

1986

it87_update_pwm_ctrl(data, i);

1986

1987

data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);

1988

data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);

1988

/* The 8705 does not have VID capability.

1989

/* The 8705 does not have VID capability.

1989

The 8718 and the 8720 don't use IT87_REG_VID for the

1990

The 8718 and the 8720 don't use IT87_REG_VID for the

1990

same purpose. */

1991

same purpose. */

1991

if (data->type == it8712 || data->type == it8716) {

1992

if (data->type == it8712 || data->type == it8716) {

1992

data->vid = it87_read_value(data, IT87_REG_VID);

1993

data->vid = it87_read_value(data, IT87_REG_VID);

1993

/* The older IT8712F revisions had only 5 VID pins,

1994

/* The older IT8712F revisions had only 5 VID pins,

1994

but we assume it is always safe to read 6 bits. */

1995

but we assume it is always safe to read 6 bits. */

1995

data->vid &= 0x3f;

1996

data->vid &= 0x3f;

1996

}

1997

}

1997

data->last_updated = jiffies;

1998

data->last_updated = jiffies;

1998

data->valid = 1;

1999

data->valid = 1;

1999

}

2000

}

2000

2001

mutex_unlock(&data->update_lock);

2002

mutex_unlock(&data->update_lock);

2002

2003

return data;

2004

return data;

2004

}

2005

}

2005

2006

static int __init it87_device_add(unsigned short address,

2007

static int __init it87_device_add(unsigned short address,

2007

const struct it87_sio_data *sio_data)

2008

const struct it87_sio_data *sio_data)

2008

{

2009

{

2009

struct resource res = {

2010

struct resource res = {

2010

.start = address + IT87_EC_OFFSET,

2011

.start = address + IT87_EC_OFFSET,

2011

.end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1,

2012

.end = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1,

2012

.name = DRVNAME,

2013

.name = DRVNAME,

2013

.flags = IORESOURCE_IO,

2014

.flags = IORESOURCE_IO,

2014

};

2015

};

2015

int err;

2016

int err;

2016

2017

err = acpi_check_resource_conflict(&res);

2018

err = acpi_check_resource_conflict(&res);

2018

if (err)

2019

if (err)

2019

goto exit;

2020

goto exit;

2020

2021

pdev = platform_device_alloc(DRVNAME, address);

2022

pdev = platform_device_alloc(DRVNAME, address);

2022

if (!pdev) {

2023

if (!pdev) {

2023

err = -ENOMEM;

2024

err = -ENOMEM;

2024

printk(KERN_ERR DRVNAME ": Device allocation failed\n");

2025

printk(KERN_ERR DRVNAME ": Device allocation failed\n");

2025

goto exit;

2026

goto exit;

2026

}

2027

}

2027

2028

err = platform_device_add_resources(pdev, &res, 1);

2029

err = platform_device_add_resources(pdev, &res, 1);

2029

if (err) {

2030

if (err) {

2030

printk(KERN_ERR DRVNAME ": Device resource addition failed "

2031

printk(KERN_ERR DRVNAME ": Device resource addition failed "

2031

"(%d)\n", err);

2032

"(%d)\n", err);

2032

goto exit_device_put;

2033

goto exit_device_put;

2033

}

2034

}

2034

2035

err = platform_device_add_data(pdev, sio_data,

2036

err = platform_device_add_data(pdev, sio_data,

2036

sizeof(struct it87_sio_data));

2037

sizeof(struct it87_sio_data));

2037

if (err) {

2038

if (err) {

2038

printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");

2039

printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");

2039

goto exit_device_put;

2040

goto exit_device_put;

2040

}

2041

}

2041

2042

err = platform_device_add(pdev);

2043

err = platform_device_add(pdev);

2043

if (err) {

2044

if (err) {

2044

printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",

2045

printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",

2045

err);

2046

err);

2046

goto exit_device_put;

2047

goto exit_device_put;

2047

}

2048

}

2048

2049

return 0;

2050

return 0;

2050

2051

exit_device_put:

2052

exit_device_put:

2052

platform_device_put(pdev);

2053

platform_device_put(pdev);

2053

exit:

2054

exit:

2054

return err;

2055

return err;

2055

}

2056

}

2056

2057

static int __init sm_it87_init(void)

2058

static int __init sm_it87_init(void)

2058

{

2059

{

2059

int err;

2060

int err;

2060

unsigned short isa_address = 0;

2061

unsigned short isa_address = 0;

2061

struct it87_sio_data sio_data;

2062

struct it87_sio_data sio_data;

2062

2063

memset(&sio_data, 0, sizeof(struct it87_sio_data));

2064

memset(&sio_data, 0, sizeof(struct it87_sio_data));

2064

err = it87_find(&isa_address, &sio_data);

2065

err = it87_find(&isa_address, &sio_data);

2065

if (err)

2066

if (err)

2066

return err;

2067

return err;

2067

err = platform_driver_register(&it87_driver);

2068

err = platform_driver_register(&it87_driver);

2068

if (err)

2069

if (err)

2069

return err;

2070

return err;

2070

2071

err = it87_device_add(isa_address, &sio_data);

2072

err = it87_device_add(isa_address, &sio_data);

2072

if (err) {

2073

if (err) {

2073

platform_driver_unregister(&it87_driver);

2074

platform_driver_unregister(&it87_driver);

2074

return err;

2075

return err;

2075

}

2076

}

2076

2077

return 0;

2078

return 0;

2078

}

2079

}

2079

2080

static void __exit sm_it87_exit(void)

2081

static void __exit sm_it87_exit(void)

2081

{

2082

{

2082

platform_device_unregister(pdev);

2083

platform_device_unregister(pdev);

2083

platform_driver_unregister(&it87_driver);

2084

platform_driver_unregister(&it87_driver);

2084

}

2085

}

2085

2086

2087

MODULE_AUTHOR("Chris Gauthron, "

2088

MODULE_AUTHOR("Chris Gauthron, "

2088

"Jean Delvare <khali@linux-fr.org>");

2089

"Jean Delvare <khali@linux-fr.org>");

2089

MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8720F/8726F, SiS950 driver");

2090

MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8720F/8726F, SiS950 driver");

2090

module_param(update_vbat, bool, 0);

2091

module_param(update_vbat, bool, 0);

2091

MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");

2092

MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");

2092

module_param(fix_pwm_polarity, bool, 0);

2093

module_param(fix_pwm_polarity, bool, 0);

2093

MODULE_PARM_DESC(fix_pwm_polarity,

2094

MODULE_PARM_DESC(fix_pwm_polarity,

2094

"Force PWM polarity to active high (DANGEROUS)");

2095

"Force PWM polarity to active high (DANGEROUS)");

2095

MODULE_LICENSE("GPL");

2096

MODULE_LICENSE("GPL");

2096

2097

module_init(sm_it87_init);

2098

module_init(sm_it87_init);

2098

module_exit(sm_it87_exit);

2099

module_exit(sm_it87_exit);

2099

2100

GITLAB

hwmon: (it87) Invalidate cache on temperature sensor change

 /*
  *  it87.c - Part of lm_sensors, Linux kernel modules for hardware
  *           monitoring.
  *
  *  The IT8705F is an LPC-based Super I/O part that contains UARTs, a
  *  parallel port, an IR port, a MIDI port, a floppy controller, etc., in
  *  addition to an Environment Controller (Enhanced Hardware Monitor and
  *  Fan Controller)
  *
  *  This driver supports only the Environment Controller in the IT8705F and
  *  similar parts.  The other devices are supported by different drivers.
  *
  *  Supports: IT8705F  Super I/O chip w/LPC interface
  *            IT8712F  Super I/O chip w/LPC interface
  *            IT8716F  Super I/O chip w/LPC interface
  *            IT8718F  Super I/O chip w/LPC interface
  *            IT8720F  Super I/O chip w/LPC interface
  *            IT8726F  Super I/O chip w/LPC interface
  *            Sis950   A clone of the IT8705F
  *
  *  Copyright (C) 2001 Chris Gauthron
  *  Copyright (C) 2005-2010 Jean Delvare <khali@linux-fr.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/jiffies.h>
 #include <linux/platform_device.h>
 #include <linux/hwmon.h>
 #include <linux/hwmon-sysfs.h>
 #include <linux/hwmon-vid.h>
 #include <linux/err.h>
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
 #include <linux/string.h>
 #include <linux/dmi.h>
 #include <linux/acpi.h>
 #include <linux/io.h>
 #define DRVNAME "it87"
 enum chips { it87, it8712, it8716, it8718, it8720 };
 static unsigned short force_id;
 module_param(force_id, ushort, 0);
 MODULE_PARM_DESC(force_id, "Override the detected device ID");
 static struct platform_device *pdev;
 #define	REG	0x2e	/* The register to read/write */
 #define	DEV	0x07	/* Register: Logical device select */
 #define	VAL	0x2f	/* The value to read/write */
 #define PME	0x04	/* The device with the fan registers in it */
 /* The device with the IT8718F/IT8720F VID value in it */
 #define GPIO	0x07
 #define	DEVID	0x20	/* Register: Device ID */
 #define	DEVREV	0x22	/* Register: Device Revision */
 static inline int
 superio_inb(int reg)
 {
 	outb(reg, REG);
 	return inb(VAL);
 }
 static int superio_inw(int reg)
 {
 	int val;
 	outb(reg++, REG);
 	val = inb(VAL) << 8;
 	outb(reg, REG);
 	val |= inb(VAL);
 	return val;
 }
 static inline void
 superio_select(int ldn)
 {
 	outb(DEV, REG);
 	outb(ldn, VAL);
 }
 static inline void
 superio_enter(void)
 {
 	outb(0x87, REG);
 	outb(0x01, REG);
 	outb(0x55, REG);
 	outb(0x55, REG);
 }
 static inline void
 superio_exit(void)
 {
 	outb(0x02, REG);
 	outb(0x02, VAL);
 }
 /* Logical device 4 registers */
 #define IT8712F_DEVID 0x8712
 #define IT8705F_DEVID 0x8705
 #define IT8716F_DEVID 0x8716
 #define IT8718F_DEVID 0x8718
 #define IT8720F_DEVID 0x8720
 #define IT8726F_DEVID 0x8726
 #define IT87_ACT_REG  0x30
 #define IT87_BASE_REG 0x60
 /* Logical device 7 registers (IT8712F and later) */
 #define IT87_SIO_GPIO3_REG	0x27
 #define IT87_SIO_GPIO5_REG	0x29
 #define IT87_SIO_PINX2_REG	0x2c	/* Pin selection */
 #define IT87_SIO_VID_REG	0xfc	/* VID value */
 #define IT87_SIO_BEEP_PIN_REG	0xf6	/* Beep pin mapping */
 /* Update battery voltage after every reading if true */
 static int update_vbat;
 /* Not all BIOSes properly configure the PWM registers */
 static int fix_pwm_polarity;
 /* Many IT87 constants specified below */
 /* Length of ISA address segment */
 #define IT87_EXTENT 8
 /* Length of ISA address segment for Environmental Controller */
 #define IT87_EC_EXTENT 2
 /* Offset of EC registers from ISA base address */
 #define IT87_EC_OFFSET 5
 /* Where are the ISA address/data registers relative to the EC base address */
 #define IT87_ADDR_REG_OFFSET 0
 #define IT87_DATA_REG_OFFSET 1
 /*----- The IT87 registers -----*/
 #define IT87_REG_CONFIG        0x00
 #define IT87_REG_ALARM1        0x01
 #define IT87_REG_ALARM2        0x02
 #define IT87_REG_ALARM3        0x03
 /* The IT8718F and IT8720F have the VID value in a different register, in
    Super-I/O configuration space. */
 #define IT87_REG_VID           0x0a
 /* The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b
    for fan divisors. Later IT8712F revisions must use 16-bit tachometer
    mode. */
 #define IT87_REG_FAN_DIV       0x0b
 #define IT87_REG_FAN_16BIT     0x0c
 /* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */
 static const u8 IT87_REG_FAN[]		= { 0x0d, 0x0e, 0x0f, 0x80, 0x82 };
 static const u8 IT87_REG_FAN_MIN[]	= { 0x10, 0x11, 0x12, 0x84, 0x86 };
 static const u8 IT87_REG_FANX[]		= { 0x18, 0x19, 0x1a, 0x81, 0x83 };
 static const u8 IT87_REG_FANX_MIN[]	= { 0x1b, 0x1c, 0x1d, 0x85, 0x87 };
 #define IT87_REG_FAN_MAIN_CTRL 0x13
 #define IT87_REG_FAN_CTL       0x14
 #define IT87_REG_PWM(nr)       (0x15 + (nr))
 #define IT87_REG_VIN(nr)       (0x20 + (nr))
 #define IT87_REG_TEMP(nr)      (0x29 + (nr))
 #define IT87_REG_VIN_MAX(nr)   (0x30 + (nr) * 2)
 #define IT87_REG_VIN_MIN(nr)   (0x31 + (nr) * 2)
 #define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2)
 #define IT87_REG_TEMP_LOW(nr)  (0x41 + (nr) * 2)
 #define IT87_REG_VIN_ENABLE    0x50
 #define IT87_REG_TEMP_ENABLE   0x51
 #define IT87_REG_BEEP_ENABLE   0x5c
 #define IT87_REG_CHIPID        0x58
 #define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i))
 #define IT87_REG_AUTO_PWM(nr, i)  (0x65 + (nr) * 8 + (i))
 #define IN_TO_REG(val)  (SENSORS_LIMIT((((val) + 8)/16),0,255))
 #define IN_FROM_REG(val) ((val) * 16)
 static inline u8 FAN_TO_REG(long rpm, int div)
 {
 	if (rpm == 0)
 		return 255;
 	rpm = SENSORS_LIMIT(rpm, 1, 1000000);
 	return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1,
 			     254);
 }
 static inline u16 FAN16_TO_REG(long rpm)
 {
 	if (rpm == 0)
 		return 0xffff;
 	return SENSORS_LIMIT((1350000 + rpm) / (rpm * 2), 1, 0xfffe);
 }
 #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))
 /* The divider is fixed to 2 in 16-bit mode */
 #define FAN16_FROM_REG(val) ((val)==0?-1:(val)==0xffff?0:1350000/((val)*2))
 #define TEMP_TO_REG(val) (SENSORS_LIMIT(((val)<0?(((val)-500)/1000):\
 					((val)+500)/1000),-128,127))
 #define TEMP_FROM_REG(val) ((val) * 1000)
 #define PWM_TO_REG(val)   ((val) >> 1)
 #define PWM_FROM_REG(val) (((val)&0x7f) << 1)
 static int DIV_TO_REG(int val)
 {
 	int answer = 0;
 	while (answer < 7 && (val >>= 1))
 		answer++;
 	return answer;
 }
 #define DIV_FROM_REG(val) (1 << (val))
 static const unsigned int pwm_freq[8] = {
 	48000000 / 128,
 	24000000 / 128,
 	12000000 / 128,
 	8000000 / 128,
 	6000000 / 128,
 	3000000 / 128,
 	1500000 / 128,
 	750000 / 128,
 };
 struct it87_sio_data {
 	enum chips type;
 	/* Values read from Super-I/O config space */
 	u8 revision;
 	u8 vid_value;
 	u8 beep_pin;
 	/* Features skipped based on config or DMI */
 	u8 skip_vid;
 	u8 skip_fan;
 	u8 skip_pwm;
 };
 /* For each registered chip, we need to keep some data in memory.
    The structure is dynamically allocated. */
 struct it87_data {
 	struct device *hwmon_dev;
 	enum chips type;
 	u8 revision;
 	unsigned short addr;
 	const char *name;
 	struct mutex update_lock;
 	char valid;		/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
 	u8 in[9];		/* Register value */
 	u8 in_max[8];		/* Register value */
 	u8 in_min[8];		/* Register value */
 	u8 has_fan;		/* Bitfield, fans enabled */
 	u16 fan[5];		/* Register values, possibly combined */
 	u16 fan_min[5];		/* Register values, possibly combined */
 	s8 temp[3];		/* Register value */
 	s8 temp_high[3];	/* Register value */
 	s8 temp_low[3];		/* Register value */
 	u8 sensor;		/* Register value */
 	u8 fan_div[3];		/* Register encoding, shifted right */
 	u8 vid;			/* Register encoding, combined */
 	u8 vrm;
 	u32 alarms;		/* Register encoding, combined */
 	u8 beeps;		/* Register encoding */
 	u8 fan_main_ctrl;	/* Register value */
 	u8 fan_ctl;		/* Register value */
 	/* The following 3 arrays correspond to the same registers. The
 	 * meaning of bits 6-0 depends on the value of bit 7, and we want
 	 * to preserve settings on mode changes, so we have to track all
 	 * values separately. */
 	u8 pwm_ctrl[3];		/* Register value */
 	u8 pwm_duty[3];		/* Manual PWM value set by user (bit 6-0) */
 	u8 pwm_temp_map[3];	/* PWM to temp. chan. mapping (bits 1-0) */
 	/* Automatic fan speed control registers */
 	u8 auto_pwm[3][4];	/* [nr][3] is hard-coded */
 	s8 auto_temp[3][5];	/* [nr][0] is point1_temp_hyst */
 };
 static inline int has_16bit_fans(const struct it87_data *data)
 {
 	/* IT8705F Datasheet 0.4.1, 3h == Version G.
 	   IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J.
 	   These are the first revisions with 16bit tachometer support. */
 	return (data->type == it87 && data->revision >= 0x03)
 	    || (data->type == it8712 && data->revision >= 0x08)
 	    || data->type == it8716
 	    || data->type == it8718
 	    || data->type == it8720;
 }
 static inline int has_old_autopwm(const struct it87_data *data)
 {
 	/* The old automatic fan speed control interface is implemented
 	   by IT8705F chips up to revision F and IT8712F chips up to
 	   revision G. */
 	return (data->type == it87 && data->revision < 0x03)
 	    || (data->type == it8712 && data->revision < 0x08);
 }
 static int it87_probe(struct platform_device *pdev);
 static int __devexit it87_remove(struct platform_device *pdev);
 static int it87_read_value(struct it87_data *data, u8 reg);
 static void it87_write_value(struct it87_data *data, u8 reg, u8 value);
 static struct it87_data *it87_update_device(struct device *dev);
 static int it87_check_pwm(struct device *dev);
 static void it87_init_device(struct platform_device *pdev);
 static struct platform_driver it87_driver = {
 	.driver = {
 		.owner	= THIS_MODULE,
 		.name	= DRVNAME,
 	},
 	.probe	= it87_probe,
 	.remove	= __devexit_p(it87_remove),
 };
 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", IN_FROM_REG(data->in[nr]));
 }
 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_min[nr]));
 }
 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", IN_FROM_REG(data->in_max[nr]));
 }
 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = dev_get_drvdata(dev);
 	unsigned long val;
 	if (strict_strtoul(buf, 10, &val) < 0)
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
 	data->in_min[nr] = IN_TO_REG(val);
 	it87_write_value(data, IT87_REG_VIN_MIN(nr),
 			data->in_min[nr]);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = dev_get_drvdata(dev);
 	unsigned long val;
 	if (strict_strtoul(buf, 10, &val) < 0)
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
 	data->in_max[nr] = IN_TO_REG(val);
 	it87_write_value(data, IT87_REG_VIN_MAX(nr),
 			data->in_max[nr]);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 #define show_in_offset(offset)					\
 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,		\
 		show_in, NULL, offset);
 #define limit_in_offset(offset)					\
 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,	\
 		show_in_min, set_in_min, offset);		\
 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,	\
 		show_in_max, set_in_max, offset);
 show_in_offset(0);
 limit_in_offset(0);
 show_in_offset(1);
 limit_in_offset(1);
 show_in_offset(2);
 limit_in_offset(2);
 show_in_offset(3);
 limit_in_offset(3);
 show_in_offset(4);
 limit_in_offset(4);
 show_in_offset(5);
 limit_in_offset(5);
 show_in_offset(6);
 limit_in_offset(6);
 show_in_offset(7);
 limit_in_offset(7);
 show_in_offset(8);
 /* 3 temperatures */
 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
 }
 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
 }
 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_low[nr]));
 }
 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = dev_get_drvdata(dev);
 	long val;
 	if (strict_strtol(buf, 10, &val) < 0)
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
 	data->temp_high[nr] = TEMP_TO_REG(val);
 	it87_write_value(data, IT87_REG_TEMP_HIGH(nr), data->temp_high[nr]);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = dev_get_drvdata(dev);
 	long val;
 	if (strict_strtol(buf, 10, &val) < 0)
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
 	data->temp_low[nr] = TEMP_TO_REG(val);
 	it87_write_value(data, IT87_REG_TEMP_LOW(nr), data->temp_low[nr]);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 #define show_temp_offset(offset)					\
 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO,		\
 		show_temp, NULL, offset - 1);				\
 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,	\
 		show_temp_max, set_temp_max, offset - 1);		\
 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,	\
 		show_temp_min, set_temp_min, offset - 1);
 show_temp_offset(1);
 show_temp_offset(2);
 show_temp_offset(3);
 static ssize_t show_sensor(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	u8 reg = data->sensor;		/* In case the value is updated while
 					   we use it */
 	if (reg & (1 << nr))
 		return sprintf(buf, "3\n");  /* thermal diode */
 	if (reg & (8 << nr))
 		return sprintf(buf, "4\n");  /* thermistor */
 	return sprintf(buf, "0\n");      /* disabled */
 }
 static ssize_t set_sensor(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = dev_get_drvdata(dev);
 	long val;
 	u8 reg;
 	if (strict_strtol(buf, 10, &val) < 0)
 		return -EINVAL;
 	reg = it87_read_value(data, IT87_REG_TEMP_ENABLE);
 	reg &= ~(1 << nr);
 	reg &= ~(8 << nr);
 	if (val == 2) {	/* backwards compatibility */
 		dev_warn(dev, "Sensor type 2 is deprecated, please use 4 "
 			 "instead\n");
 		val = 4;
 	}
 	/* 3 = thermal diode; 4 = thermistor; 0 = disabled */
 	if (val == 3)
 		reg |= 1 << nr;
 	else if (val == 4)
 		reg |= 8 << nr;
 	else if (val != 0)
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
 	data->sensor = reg;
 	it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor);
+	data->valid = 0;	/* Force cache refresh */
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 #define show_sensor_offset(offset)					\
 static SENSOR_DEVICE_ATTR(temp##offset##_type, S_IRUGO | S_IWUSR,	\
 		show_sensor, set_sensor, offset - 1);
 show_sensor_offset(1);
 show_sensor_offset(2);
 show_sensor_offset(3);
 /* 3 Fans */
 static int pwm_mode(const struct it87_data *data, int nr)
 {
 	int ctrl = data->fan_main_ctrl & (1 << nr);
 	if (ctrl == 0)					/* Full speed */
 		return 0;
 	if (data->pwm_ctrl[nr] & 0x80)			/* Automatic mode */
 		return 2;
 	else						/* Manual mode */
 		return 1;
 }
 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr],
 				DIV_FROM_REG(data->fan_div[nr])));
 }
 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr],
 				DIV_FROM_REG(data->fan_div[nr])));
 }
 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
 }
 static ssize_t show_pwm_enable(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", pwm_mode(data, nr));
 }
 static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", PWM_FROM_REG(data->pwm_duty[nr]));
 }
 static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct it87_data *data = it87_update_device(dev);
 	int index = (data->fan_ctl >> 4) & 0x07;
 	return sprintf(buf, "%u\n", pwm_freq[index]);
 }
 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = dev_get_drvdata(dev);
 	long val;
 	u8 reg;
 	if (strict_strtol(buf, 10, &val) < 0)
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
 	reg = it87_read_value(data, IT87_REG_FAN_DIV);
 	switch (nr) {
 	case 0:
 		data->fan_div[nr] = reg & 0x07;
 		break;
 	case 1:
 		data->fan_div[nr] = (reg >> 3) & 0x07;
 		break;
 	case 2:
 		data->fan_div[nr] = (reg & 0x40) ? 3 : 1;
 		break;
 	}
 	data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
 	it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = dev_get_drvdata(dev);
 	unsigned long val;
 	int min;
 	u8 old;
 	if (strict_strtoul(buf, 10, &val) < 0)
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
 	old = it87_read_value(data, IT87_REG_FAN_DIV);
 	/* Save fan min limit */
 	min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
 	switch (nr) {
 	case 0:
 	case 1:
 		data->fan_div[nr] = DIV_TO_REG(val);
 		break;
 	case 2:
 		if (val < 8)
 			data->fan_div[nr] = 1;
 		else
 			data->fan_div[nr] = 3;
 	}
 	val = old & 0x80;
 	val |= (data->fan_div[0] & 0x07);
 	val |= (data->fan_div[1] & 0x07) << 3;
 	if (data->fan_div[2] == 3)
 		val |= 0x1 << 6;
 	it87_write_value(data, IT87_REG_FAN_DIV, val);
 	/* Restore fan min limit */
 	data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
 	it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan_min[nr]);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 /* Returns 0 if OK, -EINVAL otherwise */
 static int check_trip_points(struct device *dev, int nr)
 {
 	const struct it87_data *data = dev_get_drvdata(dev);
 	int i, err = 0;
 	if (has_old_autopwm(data)) {
 		for (i = 0; i < 3; i++) {
 			if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
 				err = -EINVAL;
 		}
 		for (i = 0; i < 2; i++) {
 			if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
 				err = -EINVAL;
 		}
 	}
 	if (err) {
 		dev_err(dev, "Inconsistent trip points, not switching to "
 			"automatic mode\n");
 		dev_err(dev, "Adjust the trip points and try again\n");
 	}
 	return err;
 }
 static ssize_t set_pwm_enable(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = dev_get_drvdata(dev);
 	long val;
 	if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 2)
 		return -EINVAL;
 	/* Check trip points before switching to automatic mode */
 	if (val == 2) {
 		if (check_trip_points(dev, nr) < 0)
 			return -EINVAL;
 	}
 	mutex_lock(&data->update_lock);
 	if (val == 0) {
 		int tmp;
 		/* make sure the fan is on when in on/off mode */
 		tmp = it87_read_value(data, IT87_REG_FAN_CTL);
 		it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr));
 		/* set on/off mode */
 		data->fan_main_ctrl &= ~(1 << nr);
 		it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
 				 data->fan_main_ctrl);
 	} else {
 		if (val == 1)				/* Manual mode */
 			data->pwm_ctrl[nr] = data->pwm_duty[nr];
 		else					/* Automatic mode */
 			data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
 		it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
 		/* set SmartGuardian mode */
 		data->fan_main_ctrl |= (1 << nr);
 		it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
 				 data->fan_main_ctrl);
 	}
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = dev_get_drvdata(dev);
 	long val;
 	if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255)
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
 	data->pwm_duty[nr] = PWM_TO_REG(val);
 	/* If we are in manual mode, write the duty cycle immediately;
 	 * otherwise, just store it for later use. */
 	if (!(data->pwm_ctrl[nr] & 0x80)) {
 		data->pwm_ctrl[nr] = data->pwm_duty[nr];
 		it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
 	}
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 static ssize_t set_pwm_freq(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct it87_data *data = dev_get_drvdata(dev);
 	unsigned long val;
 	int i;
 	if (strict_strtoul(buf, 10, &val) < 0)
 		return -EINVAL;
 	/* Search for the nearest available frequency */
 	for (i = 0; i < 7; i++) {
 		if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2)
 			break;
 	}
 	mutex_lock(&data->update_lock);
 	data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f;
 	data->fan_ctl |= i << 4;
 	it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 static ssize_t show_pwm_temp_map(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	int map;
 	if (data->pwm_temp_map[nr] < 3)
 		map = 1 << data->pwm_temp_map[nr];
 	else
 		map = 0;			/* Should never happen */
 	return sprintf(buf, "%d\n", map);
 }
 static ssize_t set_pwm_temp_map(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = dev_get_drvdata(dev);
 	long val;
 	u8 reg;
 	/* This check can go away if we ever support automatic fan speed
 	   control on newer chips. */
 	if (!has_old_autopwm(data)) {
 		dev_notice(dev, "Mapping change disabled for safety reasons\n");
 		return -EINVAL;
 	}
 	if (strict_strtol(buf, 10, &val) < 0)
 		return -EINVAL;
 	switch (val) {
 	case (1 << 0):
 		reg = 0x00;
 		break;
 	case (1 << 1):
 		reg = 0x01;
 		break;
 	case (1 << 2):
 		reg = 0x02;
 		break;
 	default:
 		return -EINVAL;
 	}
 	mutex_lock(&data->update_lock);
 	data->pwm_temp_map[nr] = reg;
 	/* If we are in automatic mode, write the temp mapping immediately;
 	 * otherwise, just store it for later use. */
 	if (data->pwm_ctrl[nr] & 0x80) {
 		data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
 		it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
 	}
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 static ssize_t show_auto_pwm(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
 	struct it87_data *data = it87_update_device(dev);
 	struct sensor_device_attribute_2 *sensor_attr =
 			to_sensor_dev_attr_2(attr);
 	int nr = sensor_attr->nr;
 	int point = sensor_attr->index;
 	return sprintf(buf, "%d\n", PWM_FROM_REG(data->auto_pwm[nr][point]));
 }
 static ssize_t set_auto_pwm(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct it87_data *data = dev_get_drvdata(dev);
 	struct sensor_device_attribute_2 *sensor_attr =
 			to_sensor_dev_attr_2(attr);
 	int nr = sensor_attr->nr;
 	int point = sensor_attr->index;
 	long val;
 	if (strict_strtol(buf, 10, &val) < 0 || val < 0 || val > 255)
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
 	data->auto_pwm[nr][point] = PWM_TO_REG(val);
 	it87_write_value(data, IT87_REG_AUTO_PWM(nr, point),
 			 data->auto_pwm[nr][point]);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 static ssize_t show_auto_temp(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
 	struct it87_data *data = it87_update_device(dev);
 	struct sensor_device_attribute_2 *sensor_attr =
 			to_sensor_dev_attr_2(attr);
 	int nr = sensor_attr->nr;
 	int point = sensor_attr->index;
 	return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point]));
 }
 static ssize_t set_auto_temp(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct it87_data *data = dev_get_drvdata(dev);
 	struct sensor_device_attribute_2 *sensor_attr =
 			to_sensor_dev_attr_2(attr);
 	int nr = sensor_attr->nr;
 	int point = sensor_attr->index;
 	long val;
 	if (strict_strtol(buf, 10, &val) < 0 || val < -128000 || val > 127000)
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
 	data->auto_temp[nr][point] = TEMP_TO_REG(val);
 	it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point),
 			 data->auto_temp[nr][point]);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 #define show_fan_offset(offset)					\
 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,		\
 		show_fan, NULL, offset - 1);			\
 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \
 		show_fan_min, set_fan_min, offset - 1);		\
 static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \
 		show_fan_div, set_fan_div, offset - 1);
 show_fan_offset(1);
 show_fan_offset(2);
 show_fan_offset(3);
 #define show_pwm_offset(offset)						\
 static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR,	\
 		show_pwm_enable, set_pwm_enable, offset - 1);		\
 static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,		\
 		show_pwm, set_pwm, offset - 1);				\
 static DEVICE_ATTR(pwm##offset##_freq,					\
 		(offset == 1 ? S_IRUGO | S_IWUSR : S_IRUGO),		\
 		show_pwm_freq, (offset == 1 ? set_pwm_freq : NULL));	\
 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels_temp,		\
 		S_IRUGO | S_IWUSR, show_pwm_temp_map, set_pwm_temp_map,	\
 		offset - 1);						\
 static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_pwm,		\
 		S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm,		\
 		offset - 1, 0);						\
 static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_pwm,		\
 		S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm,		\
 		offset - 1, 1);						\
 static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_pwm,		\
 		S_IRUGO | S_IWUSR, show_auto_pwm, set_auto_pwm,		\
 		offset - 1, 2);						\
 static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_pwm,		\
 		S_IRUGO, show_auto_pwm, NULL, offset - 1, 3);		\
 static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp,		\
 		S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp,	\
 		offset - 1, 1);						\
 static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point1_temp_hyst,	\
 		S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp,	\
 		offset - 1, 0);						\
 static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point2_temp,		\
 		S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp,	\
 		offset - 1, 2);						\
 static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point3_temp,		\
 		S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp,	\
 		offset - 1, 3);						\
 static SENSOR_DEVICE_ATTR_2(pwm##offset##_auto_point4_temp,		\
 		S_IRUGO | S_IWUSR, show_auto_temp, set_auto_temp,	\
 		offset - 1, 4);
 show_pwm_offset(1);
 show_pwm_offset(2);
 show_pwm_offset(3);
 /* A different set of callbacks for 16-bit fans */
 static ssize_t show_fan16(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan[nr]));
 }
 static ssize_t show_fan16_min(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%d\n", FAN16_FROM_REG(data->fan_min[nr]));
 }
 static ssize_t set_fan16_min(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 	int nr = sensor_attr->index;
 	struct it87_data *data = dev_get_drvdata(dev);
 	long val;
 	if (strict_strtol(buf, 10, &val) < 0)
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
 	data->fan_min[nr] = FAN16_TO_REG(val);
 	it87_write_value(data, IT87_REG_FAN_MIN[nr],
 			 data->fan_min[nr] & 0xff);
 	it87_write_value(data, IT87_REG_FANX_MIN[nr],
 			 data->fan_min[nr] >> 8);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 /* We want to use the same sysfs file names as 8-bit fans, but we need
    different variable names, so we have to use SENSOR_ATTR instead of
    SENSOR_DEVICE_ATTR. */
 #define show_fan16_offset(offset) \
 static struct sensor_device_attribute sensor_dev_attr_fan##offset##_input16 \
 	= SENSOR_ATTR(fan##offset##_input, S_IRUGO,		\
 		show_fan16, NULL, offset - 1);			\
 static struct sensor_device_attribute sensor_dev_attr_fan##offset##_min16 \
 	= SENSOR_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,	\
 		show_fan16_min, set_fan16_min, offset - 1)
 show_fan16_offset(1);
 show_fan16_offset(2);
 show_fan16_offset(3);
 show_fan16_offset(4);
 show_fan16_offset(5);
 /* Alarms */
 static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%u\n", data->alarms);
 }
 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	int bitnr = to_sensor_dev_attr(attr)->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
 }
 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8);
 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9);
 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10);
 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11);
 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12);
 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13);
 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14);
 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15);
 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0);
 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1);
 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2);
 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3);
 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6);
 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16);
 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17);
 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18);
 static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	int bitnr = to_sensor_dev_attr(attr)->index;
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1);
 }
 static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	int bitnr = to_sensor_dev_attr(attr)->index;
 	struct it87_data *data = dev_get_drvdata(dev);
 	long val;
 	if (strict_strtol(buf, 10, &val) < 0
 	 || (val != 0 && val != 1))
 		return -EINVAL;
 	mutex_lock(&data->update_lock);
 	data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
 	if (val)
 		data->beeps |= (1 << bitnr);
 	else
 		data->beeps &= ~(1 << bitnr);
 	it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps);
 	mutex_unlock(&data->update_lock);
 	return count;
 }
 static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,
 			  show_beep, set_beep, 1);
 static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1);
 static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1);
 static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1);
 static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1);
 static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1);
 static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1);
 static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1);
 /* fanX_beep writability is set later */
 static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0);
 static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0);
 static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0);
 static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0);
 static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0);
 static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
 			  show_beep, set_beep, 2);
 static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2);
 static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2);
 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct it87_data *data = dev_get_drvdata(dev);
 	return sprintf(buf, "%u\n", data->vrm);
 }
 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct it87_data *data = dev_get_drvdata(dev);
 	unsigned long val;
 	if (strict_strtoul(buf, 10, &val) < 0)
 		return -EINVAL;
 	data->vrm = val;
 	return count;
 }
 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
 	struct it87_data *data = it87_update_device(dev);
 	return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
 }
 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 static ssize_t show_name(struct device *dev, struct device_attribute
 			 *devattr, char *buf)
 {
 	struct it87_data *data = dev_get_drvdata(dev);
 	return sprintf(buf, "%s\n", data->name);
 }
 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
 static struct attribute *it87_attributes[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_in1_input.dev_attr.attr,
 	&sensor_dev_attr_in2_input.dev_attr.attr,
 	&sensor_dev_attr_in3_input.dev_attr.attr,
 	&sensor_dev_attr_in4_input.dev_attr.attr,
 	&sensor_dev_attr_in5_input.dev_attr.attr,
 	&sensor_dev_attr_in6_input.dev_attr.attr,
 	&sensor_dev_attr_in7_input.dev_attr.attr,
 	&sensor_dev_attr_in8_input.dev_attr.attr,
 	&sensor_dev_attr_in0_min.dev_attr.attr,
 	&sensor_dev_attr_in1_min.dev_attr.attr,
 	&sensor_dev_attr_in2_min.dev_attr.attr,
 	&sensor_dev_attr_in3_min.dev_attr.attr,
 	&sensor_dev_attr_in4_min.dev_attr.attr,
 	&sensor_dev_attr_in5_min.dev_attr.attr,
 	&sensor_dev_attr_in6_min.dev_attr.attr,
 	&sensor_dev_attr_in7_min.dev_attr.attr,
 	&sensor_dev_attr_in0_max.dev_attr.attr,
 	&sensor_dev_attr_in1_max.dev_attr.attr,
 	&sensor_dev_attr_in2_max.dev_attr.attr,
 	&sensor_dev_attr_in3_max.dev_attr.attr,
 	&sensor_dev_attr_in4_max.dev_attr.attr,
 	&sensor_dev_attr_in5_max.dev_attr.attr,
 	&sensor_dev_attr_in6_max.dev_attr.attr,
 	&sensor_dev_attr_in7_max.dev_attr.attr,
 	&sensor_dev_attr_in0_alarm.dev_attr.attr,
 	&sensor_dev_attr_in1_alarm.dev_attr.attr,
 	&sensor_dev_attr_in2_alarm.dev_attr.attr,
 	&sensor_dev_attr_in3_alarm.dev_attr.attr,
 	&sensor_dev_attr_in4_alarm.dev_attr.attr,
 	&sensor_dev_attr_in5_alarm.dev_attr.attr,
 	&sensor_dev_attr_in6_alarm.dev_attr.attr,
 	&sensor_dev_attr_in7_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp2_input.dev_attr.attr,
 	&sensor_dev_attr_temp3_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
 	&sensor_dev_attr_temp2_max.dev_attr.attr,
 	&sensor_dev_attr_temp3_max.dev_attr.attr,
 	&sensor_dev_attr_temp1_min.dev_attr.attr,
 	&sensor_dev_attr_temp2_min.dev_attr.attr,
 	&sensor_dev_attr_temp3_min.dev_attr.attr,
 	&sensor_dev_attr_temp1_type.dev_attr.attr,
 	&sensor_dev_attr_temp2_type.dev_attr.attr,
 	&sensor_dev_attr_temp3_type.dev_attr.attr,
 	&sensor_dev_attr_temp1_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp2_alarm.dev_attr.attr,
 	&sensor_dev_attr_temp3_alarm.dev_attr.attr,
 	&dev_attr_alarms.attr,
 	&dev_attr_name.attr,
 	NULL
 };
 static const struct attribute_group it87_group = {
 	.attrs = it87_attributes,
 };
 static struct attribute *it87_attributes_beep[] = {
 	&sensor_dev_attr_in0_beep.dev_attr.attr,
 	&sensor_dev_attr_in1_beep.dev_attr.attr,
 	&sensor_dev_attr_in2_beep.dev_attr.attr,
 	&sensor_dev_attr_in3_beep.dev_attr.attr,
 	&sensor_dev_attr_in4_beep.dev_attr.attr,
 	&sensor_dev_attr_in5_beep.dev_attr.attr,
 	&sensor_dev_attr_in6_beep.dev_attr.attr,
 	&sensor_dev_attr_in7_beep.dev_attr.attr,
 	&sensor_dev_attr_temp1_beep.dev_attr.attr,
 	&sensor_dev_attr_temp2_beep.dev_attr.attr,
 	&sensor_dev_attr_temp3_beep.dev_attr.attr,
 	NULL
 };
 static const struct attribute_group it87_group_beep = {
 	.attrs = it87_attributes_beep,
 };
 static struct attribute *it87_attributes_fan16[5][3+1] = { {
 	&sensor_dev_attr_fan1_input16.dev_attr.attr,
 	&sensor_dev_attr_fan1_min16.dev_attr.attr,
 	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
 	NULL
 }, {
 	&sensor_dev_attr_fan2_input16.dev_attr.attr,
 	&sensor_dev_attr_fan2_min16.dev_attr.attr,
 	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
 	NULL
 }, {
 	&sensor_dev_attr_fan3_input16.dev_attr.attr,
 	&sensor_dev_attr_fan3_min16.dev_attr.attr,
 	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
 	NULL
 }, {
 	&sensor_dev_attr_fan4_input16.dev_attr.attr,
 	&sensor_dev_attr_fan4_min16.dev_attr.attr,
 	&sensor_dev_attr_fan4_alarm.dev_attr.attr,
 	NULL
 }, {
 	&sensor_dev_attr_fan5_input16.dev_attr.attr,
 	&sensor_dev_attr_fan5_min16.dev_attr.attr,
 	&sensor_dev_attr_fan5_alarm.dev_attr.attr,
 	NULL
 } };
 static const struct attribute_group it87_group_fan16[5] = {
 	{ .attrs = it87_attributes_fan16[0] },
 	{ .attrs = it87_attributes_fan16[1] },
 	{ .attrs = it87_attributes_fan16[2] },
 	{ .attrs = it87_attributes_fan16[3] },
 	{ .attrs = it87_attributes_fan16[4] },
 };
 static struct attribute *it87_attributes_fan[3][4+1] = { {
 	&sensor_dev_attr_fan1_input.dev_attr.attr,
 	&sensor_dev_attr_fan1_min.dev_attr.attr,
 	&sensor_dev_attr_fan1_div.dev_attr.attr,
 	&sensor_dev_attr_fan1_alarm.dev_attr.attr,
 	NULL
 }, {
 	&sensor_dev_attr_fan2_input.dev_attr.attr,
 	&sensor_dev_attr_fan2_min.dev_attr.attr,
 	&sensor_dev_attr_fan2_div.dev_attr.attr,
 	&sensor_dev_attr_fan2_alarm.dev_attr.attr,
 	NULL
 }, {
 	&sensor_dev_attr_fan3_input.dev_attr.attr,
 	&sensor_dev_attr_fan3_min.dev_attr.attr,
 	&sensor_dev_attr_fan3_div.dev_attr.attr,
 	&sensor_dev_attr_fan3_alarm.dev_attr.attr,
 	NULL
 } };
 static const struct attribute_group it87_group_fan[3] = {
 	{ .attrs = it87_attributes_fan[0] },
 	{ .attrs = it87_attributes_fan[1] },
 	{ .attrs = it87_attributes_fan[2] },
 };
 static const struct attribute_group *
 it87_get_fan_group(const struct it87_data *data)
 {
 	return has_16bit_fans(data) ? it87_group_fan16 : it87_group_fan;
 }
 static struct attribute *it87_attributes_pwm[3][4+1] = { {
 	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
 	&sensor_dev_attr_pwm1.dev_attr.attr,
 	&dev_attr_pwm1_freq.attr,
 	&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
 	NULL
 }, {
 	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
 	&sensor_dev_attr_pwm2.dev_attr.attr,
 	&dev_attr_pwm2_freq.attr,
 	&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
 	NULL
 }, {
 	&sensor_dev_attr_pwm3_enable.dev_attr.attr,
 	&sensor_dev_attr_pwm3.dev_attr.attr,
 	&dev_attr_pwm3_freq.attr,
 	&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
 	NULL
 } };
 static const struct attribute_group it87_group_pwm[3] = {
 	{ .attrs = it87_attributes_pwm[0] },
 	{ .attrs = it87_attributes_pwm[1] },
 	{ .attrs = it87_attributes_pwm[2] },
 };
 static struct attribute *it87_attributes_autopwm[3][9+1] = { {
 	&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
 	&sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr,
 	&sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
 	&sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
 	&sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
 	NULL
 }, {
 	&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
 	&sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr,
 	&sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
 	&sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
 	&sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
 	NULL
 }, {
 	&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
 	&sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
 	&sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr,
 	&sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
 	&sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
 	&sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
 	NULL
 } };
 static const struct attribute_group it87_group_autopwm[3] = {
 	{ .attrs = it87_attributes_autopwm[0] },
 	{ .attrs = it87_attributes_autopwm[1] },
 	{ .attrs = it87_attributes_autopwm[2] },
 };
 static struct attribute *it87_attributes_fan_beep[] = {
 	&sensor_dev_attr_fan1_beep.dev_attr.attr,
 	&sensor_dev_attr_fan2_beep.dev_attr.attr,
 	&sensor_dev_attr_fan3_beep.dev_attr.attr,
 	&sensor_dev_attr_fan4_beep.dev_attr.attr,
 	&sensor_dev_attr_fan5_beep.dev_attr.attr,
 };
 static struct attribute *it87_attributes_vid[] = {
 	&dev_attr_vrm.attr,
 	&dev_attr_cpu0_vid.attr,
 	NULL
 };
 static const struct attribute_group it87_group_vid = {
 	.attrs = it87_attributes_vid,
 };
 /* SuperIO detection - will change isa_address if a chip is found */
 static int __init it87_find(unsigned short *address,
 	struct it87_sio_data *sio_data)
 {
 	int err = -ENODEV;
 	u16 chip_type;
 	const char *board_vendor, *board_name;
 	superio_enter();
 	chip_type = force_id ? force_id : superio_inw(DEVID);
 	switch (chip_type) {
 	case IT8705F_DEVID:
 		sio_data->type = it87;
 		break;
 	case IT8712F_DEVID:
 		sio_data->type = it8712;
 		break;
 	case IT8716F_DEVID:
 	case IT8726F_DEVID:
 		sio_data->type = it8716;
 		break;
 	case IT8718F_DEVID:
 		sio_data->type = it8718;
 		break;
 	case IT8720F_DEVID:
 		sio_data->type = it8720;
 		break;
 	case 0xffff:	/* No device at all */
 		goto exit;
 	default:
 		pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%x)\n",
 			 chip_type);
 		goto exit;
 	}
 	superio_select(PME);
 	if (!(superio_inb(IT87_ACT_REG) & 0x01)) {
 		pr_info("it87: Device not activated, skipping\n");
 		goto exit;
 	}
 	*address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1);
 	if (*address == 0) {
 		pr_info("it87: Base address not set, skipping\n");
 		goto exit;
 	}
 	err = 0;
 	sio_data->revision = superio_inb(DEVREV) & 0x0f;
 	pr_info("it87: Found IT%04xF chip at 0x%x, revision %d\n",
 		chip_type, *address, sio_data->revision);
 	/* Read GPIO config and VID value from LDN 7 (GPIO) */
 	if (sio_data->type == it87) {
 		/* The IT8705F doesn't have VID pins at all */
 		sio_data->skip_vid = 1;
 		/* The IT8705F has a different LD number for GPIO */
 		superio_select(5);
 		sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
 	} else {
 		int reg;
 		superio_select(GPIO);
 		/* We need at least 4 VID pins */
 		reg = superio_inb(IT87_SIO_GPIO3_REG);
 		if (reg & 0x0f) {
 			pr_info("it87: VID is disabled (pins used for GPIO)\n");
 			sio_data->skip_vid = 1;
 		}
 		/* Check if fan3 is there or not */
 		if (reg & (1 << 6))
 			sio_data->skip_pwm |= (1 << 2);
 		if (reg & (1 << 7))
 			sio_data->skip_fan |= (1 << 2);
 		/* Check if fan2 is there or not */
 		reg = superio_inb(IT87_SIO_GPIO5_REG);
 		if (reg & (1 << 1))
 			sio_data->skip_pwm |= (1 << 1);
 		if (reg & (1 << 2))
 			sio_data->skip_fan |= (1 << 1);
 		if ((sio_data->type == it8718 || sio_data->type == it8720)
 		 && !(sio_data->skip_vid))
 			sio_data->vid_value = superio_inb(IT87_SIO_VID_REG);
 		reg = superio_inb(IT87_SIO_PINX2_REG);
 		if (reg & (1 << 0))
 			pr_info("it87: in3 is VCC (+5V)\n");
 		if (reg & (1 << 1))
 			pr_info("it87: in7 is VCCH (+5V Stand-By)\n");
 		sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
 	}
 	if (sio_data->beep_pin)
 		pr_info("it87: Beeping is supported\n");
 	/* Disable specific features based on DMI strings */
 	board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
 	board_name = dmi_get_system_info(DMI_BOARD_NAME);
 	if (board_vendor && board_name) {
 		if (strcmp(board_vendor, "nVIDIA") == 0
 		 && strcmp(board_name, "FN68PT") == 0) {
 			/* On the Shuttle SN68PT, FAN_CTL2 is apparently not
 			   connected to a fan, but to something else. One user
 			   has reported instant system power-off when changing
 			   the PWM2 duty cycle, so we disable it.
 			   I use the board name string as the trigger in case
 			   the same board is ever used in other systems. */
 			pr_info("it87: Disabling pwm2 due to "
 				"hardware constraints\n");
 			sio_data->skip_pwm = (1 << 1);
 		}
 	}
 exit:
 	superio_exit();
 	return err;
 }
 static void it87_remove_files(struct device *dev)
 {
 	struct it87_data *data = platform_get_drvdata(pdev);
 	struct it87_sio_data *sio_data = dev->platform_data;
 	const struct attribute_group *fan_group = it87_get_fan_group(data);
 	int i;
 	sysfs_remove_group(&dev->kobj, &it87_group);
 	if (sio_data->beep_pin)
 		sysfs_remove_group(&dev->kobj, &it87_group_beep);
 	for (i = 0; i < 5; i++) {
 		if (!(data->has_fan & (1 << i)))
 			continue;
 		sysfs_remove_group(&dev->kobj, &fan_group[i]);
 		if (sio_data->beep_pin)
 			sysfs_remove_file(&dev->kobj,
 					  it87_attributes_fan_beep[i]);
 	}
 	for (i = 0; i < 3; i++) {
 		if (sio_data->skip_pwm & (1 << 0))
 			continue;
 		sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]);
 		if (has_old_autopwm(data))
 			sysfs_remove_group(&dev->kobj,
 					   &it87_group_autopwm[i]);
 	}
 	if (!sio_data->skip_vid)
 		sysfs_remove_group(&dev->kobj, &it87_group_vid);
 }
 static int __devinit it87_probe(struct platform_device *pdev)
 {
 	struct it87_data *data;
 	struct resource *res;
 	struct device *dev = &pdev->dev;
 	struct it87_sio_data *sio_data = dev->platform_data;
 	const struct attribute_group *fan_group;
 	int err = 0, i;
 	int enable_pwm_interface;
 	int fan_beep_need_rw;
 	static const char *names[] = {
 		"it87",
 		"it8712",
 		"it8716",
 		"it8718",
 		"it8720",
 	};
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
 	if (!request_region(res->start, IT87_EC_EXTENT, DRVNAME)) {
 		dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
 			(unsigned long)res->start,
 			(unsigned long)(res->start + IT87_EC_EXTENT - 1));
 		err = -EBUSY;
 		goto ERROR0;
 	}
 	data = kzalloc(sizeof(struct it87_data), GFP_KERNEL);
 	if (!data) {
 		err = -ENOMEM;
 		goto ERROR1;
 	}
 	data->addr = res->start;
 	data->type = sio_data->type;
 	data->revision = sio_data->revision;
 	data->name = names[sio_data->type];
 	/* Now, we do the remaining detection. */
 	if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80)
 	 || it87_read_value(data, IT87_REG_CHIPID) != 0x90) {
 		err = -ENODEV;
 		goto ERROR2;
 	}
 	platform_set_drvdata(pdev, data);
 	mutex_init(&data->update_lock);
 	/* Check PWM configuration */
 	enable_pwm_interface = it87_check_pwm(dev);
 	/* Initialize the IT87 chip */
 	it87_init_device(pdev);
 	/* Register sysfs hooks */
 	err = sysfs_create_group(&dev->kobj, &it87_group);
 	if (err)
 		goto ERROR2;
 	if (sio_data->beep_pin) {
 		err = sysfs_create_group(&dev->kobj, &it87_group_beep);
 		if (err)
 			goto ERROR4;
 	}
 	/* Do not create fan files for disabled fans */
 	fan_group = it87_get_fan_group(data);
 	fan_beep_need_rw = 1;
 	for (i = 0; i < 5; i++) {
 		if (!(data->has_fan & (1 << i)))
 			continue;
 		err = sysfs_create_group(&dev->kobj, &fan_group[i]);
 		if (err)
 			goto ERROR4;
 		if (sio_data->beep_pin) {
 			err = sysfs_create_file(&dev->kobj,
 						it87_attributes_fan_beep[i]);
 			if (err)
 				goto ERROR4;
 			if (!fan_beep_need_rw)
 				continue;
 			/* As we have a single beep enable bit for all fans,
 			 * only the first enabled fan has a writable attribute
 			 * for it. */
 			if (sysfs_chmod_file(&dev->kobj,
 					     it87_attributes_fan_beep[i],
 					     S_IRUGO | S_IWUSR))
 				dev_dbg(dev, "chmod +w fan%d_beep failed\n",
 					i + 1);
 			fan_beep_need_rw = 0;
 		}
 	}
 	if (enable_pwm_interface) {
 		for (i = 0; i < 3; i++) {
 			if (sio_data->skip_pwm & (1 << i))
 				continue;
 			err = sysfs_create_group(&dev->kobj,
 						 &it87_group_pwm[i]);
 			if (err)
 				goto ERROR4;
 			if (!has_old_autopwm(data))
 				continue;
 			err = sysfs_create_group(&dev->kobj,
 						 &it87_group_autopwm[i]);
 			if (err)
 				goto ERROR4;
 		}
 	}
 	if (!sio_data->skip_vid) {
 		data->vrm = vid_which_vrm();
 		/* VID reading from Super-I/O config space if available */
 		data->vid = sio_data->vid_value;
 		err = sysfs_create_group(&dev->kobj, &it87_group_vid);
 		if (err)
 			goto ERROR4;
 	}
 	data->hwmon_dev = hwmon_device_register(dev);
 	if (IS_ERR(data->hwmon_dev)) {
 		err = PTR_ERR(data->hwmon_dev);
 		goto ERROR4;
 	}
 	return 0;
 ERROR4:
 	it87_remove_files(dev);
 ERROR2:
 	platform_set_drvdata(pdev, NULL);
 	kfree(data);
 ERROR1:
 	release_region(res->start, IT87_EC_EXTENT);
 ERROR0:
 	return err;
 }
 static int __devexit it87_remove(struct platform_device *pdev)
 {
 	struct it87_data *data = platform_get_drvdata(pdev);
 	hwmon_device_unregister(data->hwmon_dev);
 	it87_remove_files(&pdev->dev);
 	release_region(data->addr, IT87_EC_EXTENT);
 	platform_set_drvdata(pdev, NULL);
 	kfree(data);
 	return 0;
 }
 /* Must be called with data->update_lock held, except during initialization.
    We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
    would slow down the IT87 access and should not be necessary. */
 static int it87_read_value(struct it87_data *data, u8 reg)
 {
 	outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);
 	return inb_p(data->addr + IT87_DATA_REG_OFFSET);
 }
 /* Must be called with data->update_lock held, except during initialization.
    We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
    would slow down the IT87 access and should not be necessary. */
 static void it87_write_value(struct it87_data *data, u8 reg, u8 value)
 {
 	outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);
 	outb_p(value, data->addr + IT87_DATA_REG_OFFSET);
 }
 /* Return 1 if and only if the PWM interface is safe to use */
 static int __devinit it87_check_pwm(struct device *dev)
 {
 	struct it87_data *data = dev_get_drvdata(dev);
 	/* Some BIOSes fail to correctly configure the IT87 fans. All fans off
 	 * and polarity set to active low is sign that this is the case so we
 	 * disable pwm control to protect the user. */
 	int tmp = it87_read_value(data, IT87_REG_FAN_CTL);
 	if ((tmp & 0x87) == 0) {
 		if (fix_pwm_polarity) {
 			/* The user asks us to attempt a chip reconfiguration.
 			 * This means switching to active high polarity and
 			 * inverting all fan speed values. */
 			int i;
 			u8 pwm[3];
 			for (i = 0; i < 3; i++)
 				pwm[i] = it87_read_value(data,
 							 IT87_REG_PWM(i));
 			/* If any fan is in automatic pwm mode, the polarity
 			 * might be correct, as suspicious as it seems, so we
 			 * better don't change anything (but still disable the
 			 * PWM interface). */
 			if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) {
 				dev_info(dev, "Reconfiguring PWM to "
 					 "active high polarity\n");
 				it87_write_value(data, IT87_REG_FAN_CTL,
 						 tmp | 0x87);
 				for (i = 0; i < 3; i++)
 					it87_write_value(data,
 							 IT87_REG_PWM(i),
 							 0x7f & ~pwm[i]);
 				return 1;
 			}
 			dev_info(dev, "PWM configuration is "
 				 "too broken to be fixed\n");
 		}
 		dev_info(dev, "Detected broken BIOS "
 			 "defaults, disabling PWM interface\n");
 		return 0;
 	} else if (fix_pwm_polarity) {
 		dev_info(dev, "PWM configuration looks "
 			 "sane, won't touch\n");
 	}
 	return 1;
 }
 /* Called when we have found a new IT87. */
 static void __devinit it87_init_device(struct platform_device *pdev)
 {
 	struct it87_sio_data *sio_data = pdev->dev.platform_data;
 	struct it87_data *data = platform_get_drvdata(pdev);
 	int tmp, i;
 	u8 mask;
 	/* For each PWM channel:
 	 * - If it is in automatic mode, setting to manual mode should set
 	 *   the fan to full speed by default.
 	 * - If it is in manual mode, we need a mapping to temperature
 	 *   channels to use when later setting to automatic mode later.
 	 *   Use a 1:1 mapping by default (we are clueless.)
 	 * In both cases, the value can (and should) be changed by the user
 	 * prior to switching to a different mode. */
 	for (i = 0; i < 3; i++) {
 		data->pwm_temp_map[i] = i;
 		data->pwm_duty[i] = 0x7f;	/* Full speed */
 		data->auto_pwm[i][3] = 0x7f;	/* Full speed, hard-coded */
 	}
 	/* Some chips seem to have default value 0xff for all limit
 	 * registers. For low voltage limits it makes no sense and triggers
 	 * alarms, so change to 0 instead. For high temperature limits, it
 	 * means -1 degree C, which surprisingly doesn't trigger an alarm,
 	 * but is still confusing, so change to 127 degrees C. */
 	for (i = 0; i < 8; i++) {
 		tmp = it87_read_value(data, IT87_REG_VIN_MIN(i));
 		if (tmp == 0xff)
 			it87_write_value(data, IT87_REG_VIN_MIN(i), 0);
 	}
 	for (i = 0; i < 3; i++) {
 		tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i));
 		if (tmp == 0xff)
 			it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127);
 	}
 	/* Temperature channels are not forcibly enabled, as they can be
 	 * set to two different sensor types and we can't guess which one
 	 * is correct for a given system. These channels can be enabled at
 	 * run-time through the temp{1-3}_type sysfs accessors if needed. */
 	/* Check if voltage monitors are reset manually or by some reason */
 	tmp = it87_read_value(data, IT87_REG_VIN_ENABLE);
 	if ((tmp & 0xff) == 0) {
 		/* Enable all voltage monitors */
 		it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff);
 	}
 	/* Check if tachometers are reset manually or by some reason */
 	mask = 0x70 & ~(sio_data->skip_fan << 4);
 	data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL);
 	if ((data->fan_main_ctrl & mask) == 0) {
 		/* Enable all fan tachometers */
 		data->fan_main_ctrl |= mask;
 		it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
 				 data->fan_main_ctrl);
 	}
 	data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;
 	/* Set tachometers to 16-bit mode if needed */
 	if (has_16bit_fans(data)) {
 		tmp = it87_read_value(data, IT87_REG_FAN_16BIT);
 		if (~tmp & 0x07 & data->has_fan) {
 			dev_dbg(&pdev->dev,
 				"Setting fan1-3 to 16-bit mode\n");
 			it87_write_value(data, IT87_REG_FAN_16BIT,
 					 tmp | 0x07);
 		}
 		/* IT8705F only supports three fans. */
 		if (data->type != it87) {
 			if (tmp & (1 << 4))
 				data->has_fan |= (1 << 3); /* fan4 enabled */
 			if (tmp & (1 << 5))
 				data->has_fan |= (1 << 4); /* fan5 enabled */
 		}
 	}
 	/* Fan input pins may be used for alternative functions */
 	data->has_fan &= ~sio_data->skip_fan;
 	/* Start monitoring */
 	it87_write_value(data, IT87_REG_CONFIG,
 			 (it87_read_value(data, IT87_REG_CONFIG) & 0x36)
 			 | (update_vbat ? 0x41 : 0x01));
 }
 static void it87_update_pwm_ctrl(struct it87_data *data, int nr)
 {
 	data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr));
 	if (data->pwm_ctrl[nr] & 0x80)	/* Automatic mode */
 		data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;
 	else				/* Manual mode */
 		data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f;
 	if (has_old_autopwm(data)) {
 		int i;
 		for (i = 0; i < 5 ; i++)
 			data->auto_temp[nr][i] = it87_read_value(data,
 						IT87_REG_AUTO_TEMP(nr, i));
 		for (i = 0; i < 3 ; i++)
 			data->auto_pwm[nr][i] = it87_read_value(data,
 						IT87_REG_AUTO_PWM(nr, i));
 	}
 }
 static struct it87_data *it87_update_device(struct device *dev)
 {
 	struct it87_data *data = dev_get_drvdata(dev);
 	int i;
 	mutex_lock(&data->update_lock);
 	if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
 	    || !data->valid) {
 		if (update_vbat) {
 			/* Cleared after each update, so reenable.  Value
 			   returned by this read will be previous value */
 			it87_write_value(data, IT87_REG_CONFIG,
 				it87_read_value(data, IT87_REG_CONFIG) | 0x40);
 		}
 		for (i = 0; i <= 7; i++) {
 			data->in[i] =
 				it87_read_value(data, IT87_REG_VIN(i));
 			data->in_min[i] =
 				it87_read_value(data, IT87_REG_VIN_MIN(i));
 			data->in_max[i] =
 				it87_read_value(data, IT87_REG_VIN_MAX(i));
 		}
 		/* in8 (battery) has no limit registers */
 		data->in[8] = it87_read_value(data, IT87_REG_VIN(8));
 		for (i = 0; i < 5; i++) {
 			/* Skip disabled fans */
 			if (!(data->has_fan & (1 << i)))
 				continue;
 			data->fan_min[i] =
 				it87_read_value(data, IT87_REG_FAN_MIN[i]);
 			data->fan[i] = it87_read_value(data,
 				       IT87_REG_FAN[i]);
 			/* Add high byte if in 16-bit mode */
 			if (has_16bit_fans(data)) {
 				data->fan[i] |= it87_read_value(data,
 						IT87_REG_FANX[i]) << 8;
 				data->fan_min[i] |= it87_read_value(data,
 						IT87_REG_FANX_MIN[i]) << 8;
 			}
 		}
 		for (i = 0; i < 3; i++) {
 			data->temp[i] =
 				it87_read_value(data, IT87_REG_TEMP(i));
 			data->temp_high[i] =
 				it87_read_value(data, IT87_REG_TEMP_HIGH(i));
 			data->temp_low[i] =
 				it87_read_value(data, IT87_REG_TEMP_LOW(i));
 		}
 		/* Newer chips don't have clock dividers */
 		if ((data->has_fan & 0x07) && !has_16bit_fans(data)) {
 			i = it87_read_value(data, IT87_REG_FAN_DIV);
 			data->fan_div[0] = i & 0x07;
 			data->fan_div[1] = (i >> 3) & 0x07;
 			data->fan_div[2] = (i & 0x40) ? 3 : 1;
 		}
 		data->alarms =
 			it87_read_value(data, IT87_REG_ALARM1) |
 			(it87_read_value(data, IT87_REG_ALARM2) << 8) |
 			(it87_read_value(data, IT87_REG_ALARM3) << 16);
 		data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
 		data->fan_main_ctrl = it87_read_value(data,
 				IT87_REG_FAN_MAIN_CTRL);
 		data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL);
 		for (i = 0; i < 3; i++)
 			it87_update_pwm_ctrl(data, i);
 		data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);
 		/* The 8705 does not have VID capability.
 		   The 8718 and the 8720 don't use IT87_REG_VID for the
 		   same purpose. */
 		if (data->type == it8712 || data->type == it8716) {
 			data->vid = it87_read_value(data, IT87_REG_VID);
 			/* The older IT8712F revisions had only 5 VID pins,
 			   but we assume it is always safe to read 6 bits. */
 			data->vid &= 0x3f;
 		}
 		data->last_updated = jiffies;
 		data->valid = 1;
 	}
 	mutex_unlock(&data->update_lock);
 	return data;
 }
 static int __init it87_device_add(unsigned short address,
 				  const struct it87_sio_data *sio_data)
 {
 	struct resource res = {
 		.start	= address + IT87_EC_OFFSET,
 		.end	= address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1,
 		.name	= DRVNAME,
 		.flags	= IORESOURCE_IO,
 	};
 	int err;
 	err = acpi_check_resource_conflict(&res);
 	if (err)
 		goto exit;
 	pdev = platform_device_alloc(DRVNAME, address);
 	if (!pdev) {
 		err = -ENOMEM;
 		printk(KERN_ERR DRVNAME ": Device allocation failed\n");
 		goto exit;
 	}
 	err = platform_device_add_resources(pdev, &res, 1);
 	if (err) {
 		printk(KERN_ERR DRVNAME ": Device resource addition failed "
 		       "(%d)\n", err);
 		goto exit_device_put;
 	}
 	err = platform_device_add_data(pdev, sio_data,
 				       sizeof(struct it87_sio_data));
 	if (err) {
 		printk(KERN_ERR DRVNAME ": Platform data allocation failed\n");
 		goto exit_device_put;
 	}
 	err = platform_device_add(pdev);
 	if (err) {
 		printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
 		       err);
 		goto exit_device_put;
 	}
 	return 0;
 exit_device_put:
 	platform_device_put(pdev);
 exit:
 	return err;
 }
 static int __init sm_it87_init(void)
 {
 	int err;
 	unsigned short isa_address = 0;
 	struct it87_sio_data sio_data;
 	memset(&sio_data, 0, sizeof(struct it87_sio_data));
 	err = it87_find(&isa_address, &sio_data);
 	if (err)
 		return err;
 	err = platform_driver_register(&it87_driver);
 	if (err)
 		return err;
 	err = it87_device_add(isa_address, &sio_data);
 	if (err) {
 		platform_driver_unregister(&it87_driver);
 		return err;
 	}
 	return 0;
 }
 static void __exit sm_it87_exit(void)
 {
 	platform_device_unregister(pdev);
 	platform_driver_unregister(&it87_driver);
 }
 MODULE_AUTHOR("Chris Gauthron, "
 	      "Jean Delvare <khali@linux-fr.org>");
 MODULE_DESCRIPTION("IT8705F/8712F/8716F/8718F/8720F/8726F, SiS950 driver");
 module_param(update_vbat, bool, 0);
 MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");
 module_param(fix_pwm_polarity, bool, 0);
 MODULE_PARM_DESC(fix_pwm_polarity,
 		 "Force PWM polarity to active high (DANGEROUS)");
 MODULE_LICENSE("GPL");
 module_init(sm_it87_init);
 module_exit(sm_it87_exit);