// SPDX-License-Identifier: GPL-2.0-or-later

  /*

   * w83627hf.c - Part of lm_sensors, Linux kernel modules for hardware
   *		monitoring
   * Copyright (c) 1998 - 2003  Frodo Looijaard <frodol@dds.nl>,
   *			      Philip Edelbrock <phil@netroedge.com>,
   *			      and Mark Studebaker <mdsxyz123@yahoo.com>
   * Ported to 2.6 by Bernhard C. Schrenk <clemy@clemy.org>

   * Copyright (c) 2007 - 1012  Jean Delvare <jdelvare@suse.de>

   */

  
  /*

   * Supports following chips:
   *

   * Chip		#vin	#fanin	#pwm	#temp	wchipid	vendid	i2c	ISA

   * w83627hf	9	3	2	3	0x20	0x5ca3	no	yes(LPC)
   * w83627thf	7	3	3	3	0x90	0x5ca3	no	yes(LPC)
   * w83637hf	7	3	3	3	0x80	0x5ca3	no	yes(LPC)
   * w83687thf	7	3	3	3	0x90	0x5ca3	no	yes(LPC)
   * w83697hf	8	2	2	2	0x60	0x5ca3	no	yes(LPC)
   *
   * For other winbond chips, and for i2c support in the above chips,
   * use w83781d.c.
   *
   * Note: automatic ("cruise") fan control for 697, 637 & 627thf not
   * supported yet.
   */

  #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

  #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/ioport.h>

  #include <linux/acpi.h>

  #include <linux/io.h>

  #include "lm75.h"

  static struct platform_device *pdev;

  
  #define DRVNAME "w83627hf"
  enum chips { w83627hf, w83627thf, w83697hf, w83637hf, w83687thf };

  struct w83627hf_sio_data {
  	enum chips type;
  	int sioaddr;
  };

  static u8 force_i2c = 0x1f;
  module_param(force_i2c, byte, 0);
  MODULE_PARM_DESC(force_i2c,
  		 "Initialize the i2c address of the sensors");

  static bool init = 1;

  module_param(init, bool, 0);
  MODULE_PARM_DESC(init, "Set to zero to bypass chip initialization");

  static unsigned short force_id;
  module_param(force_id, ushort, 0);
  MODULE_PARM_DESC(force_id, "Override the detected device ID");

  /* modified from kernel/include/traps.c */

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

  
  /* logical device numbers for superio_select (below) */
  #define W83627HF_LD_FDC		0x00
  #define W83627HF_LD_PRT		0x01
  #define W83627HF_LD_UART1	0x02
  #define W83627HF_LD_UART2	0x03
  #define W83627HF_LD_KBC		0x05
  #define W83627HF_LD_CIR		0x06 /* w83627hf only */
  #define W83627HF_LD_GAME	0x07
  #define W83627HF_LD_MIDI	0x07
  #define W83627HF_LD_GPIO1	0x07
  #define W83627HF_LD_GPIO5	0x07 /* w83627thf only */
  #define W83627HF_LD_GPIO2	0x08
  #define W83627HF_LD_GPIO3	0x09
  #define W83627HF_LD_GPIO4	0x09 /* w83627thf only */
  #define W83627HF_LD_ACPI	0x0a
  #define W83627HF_LD_HWM		0x0b

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

  
  #define W83627THF_GPIO5_EN	0x30 /* w83627thf only */
  #define W83627THF_GPIO5_IOSR	0xf3 /* w83627thf only */
  #define W83627THF_GPIO5_DR	0xf4 /* w83627thf only */

  #define W83687THF_VID_EN	0x29 /* w83687thf only */
  #define W83687THF_VID_CFG	0xF0 /* w83687thf only */
  #define W83687THF_VID_DATA	0xF1 /* w83687thf only */

  static inline void

  superio_outb(struct w83627hf_sio_data *sio, int reg, int val)

  {

  	outb(reg, sio->sioaddr);
  	outb(val, sio->sioaddr + 1);

  }
  
  static inline int

  superio_inb(struct w83627hf_sio_data *sio, int reg)

  {

  	outb(reg, sio->sioaddr);
  	return inb(sio->sioaddr + 1);

  }
  
  static inline void

  superio_select(struct w83627hf_sio_data *sio, int ld)

  {

  	outb(DEV, sio->sioaddr);
  	outb(ld,  sio->sioaddr + 1);

  }

  static inline int

  superio_enter(struct w83627hf_sio_data *sio)

  {

  	if (!request_muxed_region(sio->sioaddr, 2, DRVNAME))
  		return -EBUSY;

  	outb(0x87, sio->sioaddr);
  	outb(0x87, sio->sioaddr);

  
  	return 0;

  }
  
  static inline void

  superio_exit(struct w83627hf_sio_data *sio)

  {

  	outb(0xAA, sio->sioaddr);

  	release_region(sio->sioaddr, 2);

  }
  
  #define W627_DEVID 0x52
  #define W627THF_DEVID 0x82
  #define W697_DEVID 0x60
  #define W637_DEVID 0x70

  #define W687THF_DEVID 0x85

  #define WINB_ACT_REG 0x30
  #define WINB_BASE_REG 0x60
  /* Constants specified below */

  /* Alignment of the base address */
  #define WINB_ALIGNMENT		~7

  /* Offset & size of I/O region we are interested in */
  #define WINB_REGION_OFFSET	5
  #define WINB_REGION_SIZE	2

  /* Where are the sensors address/data registers relative to the region offset */
  #define W83781D_ADDR_REG_OFFSET 0
  #define W83781D_DATA_REG_OFFSET 1

  
  /* The W83781D registers */
  /* The W83782D registers for nr=7,8 are in bank 5 */
  #define W83781D_REG_IN_MAX(nr) ((nr < 7) ? (0x2b + (nr) * 2) : \
  					   (0x554 + (((nr) - 7) * 2)))
  #define W83781D_REG_IN_MIN(nr) ((nr < 7) ? (0x2c + (nr) * 2) : \
  					   (0x555 + (((nr) - 7) * 2)))
  #define W83781D_REG_IN(nr)     ((nr < 7) ? (0x20 + (nr)) : \
  					   (0x550 + (nr) - 7))

  /* nr:0-2 for fans:1-3 */
  #define W83627HF_REG_FAN_MIN(nr)	(0x3b + (nr))
  #define W83627HF_REG_FAN(nr)		(0x28 + (nr))

  #define W83627HF_REG_TEMP2_CONFIG 0x152
  #define W83627HF_REG_TEMP3_CONFIG 0x252
  /* these are zero-based, unlike config constants above */
  static const u16 w83627hf_reg_temp[]		= { 0x27, 0x150, 0x250 };
  static const u16 w83627hf_reg_temp_hyst[]	= { 0x3A, 0x153, 0x253 };
  static const u16 w83627hf_reg_temp_over[]	= { 0x39, 0x155, 0x255 };

  
  #define W83781D_REG_BANK 0x4E
  
  #define W83781D_REG_CONFIG 0x40

  #define W83781D_REG_ALARM1 0x459
  #define W83781D_REG_ALARM2 0x45A
  #define W83781D_REG_ALARM3 0x45B

  #define W83781D_REG_BEEP_CONFIG 0x4D
  #define W83781D_REG_BEEP_INTS1 0x56
  #define W83781D_REG_BEEP_INTS2 0x57
  #define W83781D_REG_BEEP_INTS3 0x453
  
  #define W83781D_REG_VID_FANDIV 0x47
  
  #define W83781D_REG_CHIPID 0x49
  #define W83781D_REG_WCHIPID 0x58
  #define W83781D_REG_CHIPMAN 0x4F
  #define W83781D_REG_PIN 0x4B
  
  #define W83781D_REG_VBAT 0x5D
  
  #define W83627HF_REG_PWM1 0x5A
  #define W83627HF_REG_PWM2 0x5B

  static const u8 W83627THF_REG_PWM_ENABLE[] = {
  	0x04,		/* FAN 1 mode */
  	0x04,		/* FAN 2 mode */
  	0x12,		/* FAN AUX mode */
  };
  static const u8 W83627THF_PWM_ENABLE_SHIFT[] = { 2, 4, 1 };

  #define W83627THF_REG_PWM1		0x01	/* 697HF/637HF/687THF too */
  #define W83627THF_REG_PWM2		0x03	/* 697HF/637HF/687THF too */
  #define W83627THF_REG_PWM3		0x11	/* 637HF/687THF too */

  #define W83627THF_REG_VRM_OVT_CFG 	0x18	/* 637HF/687THF too */

  
  static const u8 regpwm_627hf[] = { W83627HF_REG_PWM1, W83627HF_REG_PWM2 };
  static const u8 regpwm[] = { W83627THF_REG_PWM1, W83627THF_REG_PWM2,
                               W83627THF_REG_PWM3 };
  #define W836X7HF_REG_PWM(type, nr) (((type) == w83627hf) ? \

  				    regpwm_627hf[nr] : regpwm[nr])

  #define W83627HF_REG_PWM_FREQ		0x5C	/* Only for the 627HF */
  
  #define W83637HF_REG_PWM_FREQ1		0x00	/* 697HF/687THF too */
  #define W83637HF_REG_PWM_FREQ2		0x02	/* 697HF/687THF too */
  #define W83637HF_REG_PWM_FREQ3		0x10	/* 687THF too */
  
  static const u8 W83637HF_REG_PWM_FREQ[] = { W83637HF_REG_PWM_FREQ1,
  					W83637HF_REG_PWM_FREQ2,
  					W83637HF_REG_PWM_FREQ3 };
  
  #define W83627HF_BASE_PWM_FREQ	46870

  #define W83781D_REG_I2C_ADDR 0x48
  #define W83781D_REG_I2C_SUBADDR 0x4A
  
  /* Sensor selection */
  #define W83781D_REG_SCFG1 0x5D
  static const u8 BIT_SCFG1[] = { 0x02, 0x04, 0x08 };
  #define W83781D_REG_SCFG2 0x59
  static const u8 BIT_SCFG2[] = { 0x10, 0x20, 0x40 };
  #define W83781D_DEFAULT_BETA 3435

  /*
   * Conversions. Limit checking is only done on the TO_REG
   * variants. Note that you should be a bit careful with which arguments
   * these macros are called: arguments may be evaluated more than once.
   * Fixing this is just not worth it.
   */

  #define IN_TO_REG(val)  (clamp_val((((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 = clamp_val(rpm, 1, 1000000);
  	return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);

  }
  
  #define TEMP_MIN (-128000)
  #define TEMP_MAX ( 127000)

  /*
   * TEMP: 0.001C/bit (-128C to +127C)
   * REG: 1C/bit, two's complement
   */

  static u8 TEMP_TO_REG(long temp)

  {

  	int ntemp = clamp_val(temp, TEMP_MIN, TEMP_MAX);
  	ntemp += (ntemp < 0 ? -500 : 500);
  	return (u8)(ntemp / 1000);

  }
  
  static int TEMP_FROM_REG(u8 reg)
  {
          return (s8)reg * 1000;
  }
  
  #define FAN_FROM_REG(val,div) ((val)==0?-1:(val)==255?0:1350000/((val)*(div)))

  #define PWM_TO_REG(val) (clamp_val((val), 0, 255))

  static inline unsigned long pwm_freq_from_reg_627hf(u8 reg)
  {
  	unsigned long freq;
  	freq = W83627HF_BASE_PWM_FREQ >> reg;
  	return freq;
  }
  static inline u8 pwm_freq_to_reg_627hf(unsigned long val)
  {
  	u8 i;

  	/*
  	 * Only 5 dividers (1 2 4 8 16)
  	 * Search for the nearest available frequency
  	 */

  	for (i = 0; i < 4; i++) {
  		if (val > (((W83627HF_BASE_PWM_FREQ >> i) +
  			    (W83627HF_BASE_PWM_FREQ >> (i+1))) / 2))
  			break;
  	}
  	return i;
  }
  
  static inline unsigned long pwm_freq_from_reg(u8 reg)
  {
  	/* Clock bit 8 -> 180 kHz or 24 MHz */
  	unsigned long clock = (reg & 0x80) ? 180000UL : 24000000UL;
  
  	reg &= 0x7f;
  	/* This should not happen but anyway... */
  	if (reg == 0)
  		reg++;

  	return clock / (reg << 8);

  }
  static inline u8 pwm_freq_to_reg(unsigned long val)
  {
  	/* Minimum divider value is 0x01 and maximum is 0x7F */
  	if (val >= 93750)	/* The highest we can do */
  		return 0x01;
  	if (val >= 720)	/* Use 24 MHz clock */

  		return 24000000UL / (val << 8);

  	if (val < 6)		/* The lowest we can do */
  		return 0xFF;
  	else			/* Use 180 kHz clock */

  		return 0x80 | (180000UL / (val << 8));

  }

  #define BEEP_MASK_FROM_REG(val)		((val) & 0xff7fff)
  #define BEEP_MASK_TO_REG(val)		((val) & 0xff7fff)

  
  #define DIV_FROM_REG(val) (1 << (val))
  
  static inline u8 DIV_TO_REG(long val)
  {
  	int i;

  	val = clamp_val(val, 1, 128) >> 1;

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

  		if (val == 0)
  			break;
  		val >>= 1;
  	}

  	return (u8)i;

  }

  /*
   * For each registered chip, we need to keep some data in memory.
   * The structure is dynamically allocated.
   */

  struct w83627hf_data {

  	unsigned short addr;
  	const char *name;

  	struct device *hwmon_dev;

  	struct mutex lock;

  	enum chips type;

  	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[9];		/* Register value */
  	u8 in_min[9];		/* Register value */
  	u8 fan[3];		/* Register value */
  	u8 fan_min[3];		/* Register value */

  	u16 temp[3];		/* Register value */
  	u16 temp_max[3];	/* Register value */
  	u16 temp_max_hyst[3];	/* Register value */

  	u8 fan_div[3];		/* Register encoding, shifted right */
  	u8 vid;			/* Register encoding, combined */
  	u32 alarms;		/* Register encoding, combined */
  	u32 beep_mask;		/* Register encoding, combined */

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

  	u8 pwm_enable[3];	/* 1 = manual

  				 * 2 = thermal cruise (also called SmartFan I)
  				 * 3 = fan speed cruise
  				 */

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

  	u16 sens[3];		/* 1 = pentium diode; 2 = 3904 diode;

  				 * 4 = thermistor
  				 */

  	u8 vrm;

  	u8 vrm_ovt;		/* Register value, 627THF/637HF/687THF only */

  
  #ifdef CONFIG_PM
  	/* Remember extra register values over suspend/resume */
  	u8 scfg1;
  	u8 scfg2;
  #endif

  };

  static int w83627hf_probe(struct platform_device *pdev);

  static int w83627hf_remove(struct platform_device *pdev);

  
  static int w83627hf_read_value(struct w83627hf_data *data, u16 reg);
  static int w83627hf_write_value(struct w83627hf_data *data, u16 reg, u16 value);

  static void w83627hf_update_fan_div(struct w83627hf_data *data);

  static struct w83627hf_data *w83627hf_update_device(struct device *dev);

  static void w83627hf_init_device(struct platform_device *pdev);

  #ifdef CONFIG_PM
  static int w83627hf_suspend(struct device *dev)
  {
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  
  	mutex_lock(&data->update_lock);
  	data->scfg1 = w83627hf_read_value(data, W83781D_REG_SCFG1);
  	data->scfg2 = w83627hf_read_value(data, W83781D_REG_SCFG2);
  	mutex_unlock(&data->update_lock);
  
  	return 0;
  }
  
  static int w83627hf_resume(struct device *dev)
  {
  	struct w83627hf_data *data = dev_get_drvdata(dev);
  	int i, num_temps = (data->type == w83697hf) ? 2 : 3;
  
  	/* Restore limits */
  	mutex_lock(&data->update_lock);
  	for (i = 0; i <= 8; i++) {
  		/* skip missing sensors */
  		if (((data->type == w83697hf) && (i == 1)) ||
  		    ((data->type != w83627hf && data->type != w83697hf)
  		    && (i == 5 || i == 6)))
  			continue;
  		w83627hf_write_value(data, W83781D_REG_IN_MAX(i),
  				     data->in_max[i]);
  		w83627hf_write_value(data, W83781D_REG_IN_MIN(i),
  				     data->in_min[i]);
  	}
  	for (i = 0; i <= 2; i++)
  		w83627hf_write_value(data, W83627HF_REG_FAN_MIN(i),
  				     data->fan_min[i]);
  	for (i = 0; i < num_temps; i++) {
  		w83627hf_write_value(data, w83627hf_reg_temp_over[i],
  				     data->temp_max[i]);
  		w83627hf_write_value(data, w83627hf_reg_temp_hyst[i],
  				     data->temp_max_hyst[i]);
  	}
  
  	/* Fixup BIOS bugs */
  	if (data->type == w83627thf || data->type == w83637hf ||
  	    data->type == w83687thf)
  		w83627hf_write_value(data, W83627THF_REG_VRM_OVT_CFG,
  				     data->vrm_ovt);
  	w83627hf_write_value(data, W83781D_REG_SCFG1, data->scfg1);
  	w83627hf_write_value(data, W83781D_REG_SCFG2, data->scfg2);
  
  	/* Force re-reading all values */
  	data->valid = 0;
  	mutex_unlock(&data->update_lock);
  
  	return 0;
  }
  
  static const struct dev_pm_ops w83627hf_dev_pm_ops = {
  	.suspend = w83627hf_suspend,
  	.resume = w83627hf_resume,
  };
  
  #define W83627HF_DEV_PM_OPS	(&w83627hf_dev_pm_ops)
  #else
  #define W83627HF_DEV_PM_OPS	NULL
  #endif /* CONFIG_PM */

  static struct platform_driver w83627hf_driver = {

  	.driver = {

  		.name	= DRVNAME,

  		.pm	= W83627HF_DEV_PM_OPS,

  	},

  	.probe		= w83627hf_probe,

  	.remove		= w83627hf_remove,

  };

  static ssize_t

  in_input_show(struct device *dev, struct device_attribute *devattr, char *buf)

  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return sprintf(buf, "%ld
  ", (long)IN_FROM_REG(data->in[nr]));

  }

  static ssize_t

  in_min_show(struct device *dev, struct device_attribute *devattr, char *buf)

  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return sprintf(buf, "%ld
  ", (long)IN_FROM_REG(data->in_min[nr]));
  }
  static ssize_t

  in_max_show(struct device *dev, struct device_attribute *devattr, char *buf)

  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return sprintf(buf, "%ld
  ", (long)IN_FROM_REG(data->in_max[nr]));

  }

  static ssize_t

  in_min_store(struct device *dev, struct device_attribute *devattr,

  	     const char *buf, size_t count)
  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	long val;
  	int err;
  
  	err = kstrtol(buf, 10, &val);
  	if (err)
  		return err;

  	mutex_lock(&data->update_lock);
  	data->in_min[nr] = IN_TO_REG(val);
  	w83627hf_write_value(data, W83781D_REG_IN_MIN(nr), data->in_min[nr]);
  	mutex_unlock(&data->update_lock);
  	return count;
  }
  static ssize_t

  in_max_store(struct device *dev, struct device_attribute *devattr,

  	     const char *buf, size_t count)
  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	long val;
  	int err;
  
  	err = kstrtol(buf, 10, &val);
  	if (err)
  		return err;

  	mutex_lock(&data->update_lock);
  	data->in_max[nr] = IN_TO_REG(val);
  	w83627hf_write_value(data, W83781D_REG_IN_MAX(nr), data->in_max[nr]);
  	mutex_unlock(&data->update_lock);
  	return count;
  }

  
  static SENSOR_DEVICE_ATTR_RO(in1_input, in_input, 1);
  static SENSOR_DEVICE_ATTR_RW(in1_min, in_min, 1);
  static SENSOR_DEVICE_ATTR_RW(in1_max, in_max, 1);
  static SENSOR_DEVICE_ATTR_RO(in2_input, in_input, 2);
  static SENSOR_DEVICE_ATTR_RW(in2_min, in_min, 2);
  static SENSOR_DEVICE_ATTR_RW(in2_max, in_max, 2);
  static SENSOR_DEVICE_ATTR_RO(in3_input, in_input, 3);
  static SENSOR_DEVICE_ATTR_RW(in3_min, in_min, 3);
  static SENSOR_DEVICE_ATTR_RW(in3_max, in_max, 3);
  static SENSOR_DEVICE_ATTR_RO(in4_input, in_input, 4);
  static SENSOR_DEVICE_ATTR_RW(in4_min, in_min, 4);
  static SENSOR_DEVICE_ATTR_RW(in4_max, in_max, 4);
  static SENSOR_DEVICE_ATTR_RO(in5_input, in_input, 5);
  static SENSOR_DEVICE_ATTR_RW(in5_min, in_min, 5);
  static SENSOR_DEVICE_ATTR_RW(in5_max, in_max, 5);
  static SENSOR_DEVICE_ATTR_RO(in6_input, in_input, 6);
  static SENSOR_DEVICE_ATTR_RW(in6_min, in_min, 6);
  static SENSOR_DEVICE_ATTR_RW(in6_max, in_max, 6);
  static SENSOR_DEVICE_ATTR_RO(in7_input, in_input, 7);
  static SENSOR_DEVICE_ATTR_RW(in7_min, in_min, 7);
  static SENSOR_DEVICE_ATTR_RW(in7_max, in_max, 7);
  static SENSOR_DEVICE_ATTR_RO(in8_input, in_input, 8);
  static SENSOR_DEVICE_ATTR_RW(in8_min, in_min, 8);
  static SENSOR_DEVICE_ATTR_RW(in8_max, in_max, 8);

  
  /* use a different set of functions for in0 */
  static ssize_t show_in_0(struct w83627hf_data *data, char *buf, u8 reg)
  {
  	long in0;
  
  	if ((data->vrm_ovt & 0x01) &&

  		(w83627thf == data->type || w83637hf == data->type
  		 || w83687thf == data->type))

  
  		/* use VRM9 calculation */
  		in0 = (long)((reg * 488 + 70000 + 50) / 100);
  	else
  		/* use VRM8 (standard) calculation */
  		in0 = (long)IN_FROM_REG(reg);
  
  	return sprintf(buf,"%ld
  ", in0);
  }

  static ssize_t in0_input_show(struct device *dev,
  			      struct device_attribute *attr, char *buf)

  {
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return show_in_0(data, buf, data->in[0]);
  }

  static ssize_t in0_min_show(struct device *dev, struct device_attribute *attr,
  			    char *buf)

  {
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return show_in_0(data, buf, data->in_min[0]);
  }

  static ssize_t in0_max_show(struct device *dev, struct device_attribute *attr,
  			    char *buf)

  {
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return show_in_0(data, buf, data->in_max[0]);
  }

  static ssize_t in0_min_store(struct device *dev,
  			     struct device_attribute *attr, const char *buf,
  			     size_t count)

  {

  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	unsigned long val;
  	int err;

  	err = kstrtoul(buf, 10, &val);
  	if (err)
  		return err;

  	mutex_lock(&data->update_lock);

  	
  	if ((data->vrm_ovt & 0x01) &&

  		(w83627thf == data->type || w83637hf == data->type
  		 || w83687thf == data->type))

  
  		/* use VRM9 calculation */

  		data->in_min[0] =

  			clamp_val(((val * 100) - 70000 + 244) / 488, 0, 255);

  	else
  		/* use VRM8 (standard) calculation */
  		data->in_min[0] = IN_TO_REG(val);

  	w83627hf_write_value(data, W83781D_REG_IN_MIN(0), data->in_min[0]);

  	mutex_unlock(&data->update_lock);

  	return count;
  }

  static ssize_t in0_max_store(struct device *dev,
  			     struct device_attribute *attr, const char *buf,
  			     size_t count)

  {

  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	unsigned long val;
  	int err;

  	err = kstrtoul(buf, 10, &val);
  	if (err)
  		return err;

  	mutex_lock(&data->update_lock);

  
  	if ((data->vrm_ovt & 0x01) &&

  		(w83627thf == data->type || w83637hf == data->type
  		 || w83687thf == data->type))

  		
  		/* use VRM9 calculation */

  		data->in_max[0] =

  			clamp_val(((val * 100) - 70000 + 244) / 488, 0, 255);

  	else
  		/* use VRM8 (standard) calculation */
  		data->in_max[0] = IN_TO_REG(val);

  	w83627hf_write_value(data, W83781D_REG_IN_MAX(0), data->in_max[0]);

  	mutex_unlock(&data->update_lock);

  	return count;
  }

  static DEVICE_ATTR_RO(in0_input);
  static DEVICE_ATTR_RW(in0_min);
  static DEVICE_ATTR_RW(in0_max);

  static ssize_t

  fan_input_show(struct device *dev, struct device_attribute *devattr,
  	       char *buf)

  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return sprintf(buf, "%ld
  ", FAN_FROM_REG(data->fan[nr],
  				(long)DIV_FROM_REG(data->fan_div[nr])));
  }
  static ssize_t

  fan_min_show(struct device *dev, struct device_attribute *devattr, char *buf)

  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return sprintf(buf, "%ld
  ", FAN_FROM_REG(data->fan_min[nr],
  				(long)DIV_FROM_REG(data->fan_div[nr])));

  }

  static ssize_t

  fan_min_store(struct device *dev, struct device_attribute *devattr,

  	      const char *buf, size_t count)

  {

  	int nr = to_sensor_dev_attr(devattr)->index;

  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	unsigned long val;
  	int err;
  
  	err = kstrtoul(buf, 10, &val);
  	if (err)
  		return err;

  	mutex_lock(&data->update_lock);

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

  	w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr),

  			     data->fan_min[nr]);

  	mutex_unlock(&data->update_lock);

  	return count;
  }

  static SENSOR_DEVICE_ATTR_RO(fan1_input, fan_input, 0);
  static SENSOR_DEVICE_ATTR_RW(fan1_min, fan_min, 0);
  static SENSOR_DEVICE_ATTR_RO(fan2_input, fan_input, 1);
  static SENSOR_DEVICE_ATTR_RW(fan2_min, fan_min, 1);
  static SENSOR_DEVICE_ATTR_RO(fan3_input, fan_input, 2);
  static SENSOR_DEVICE_ATTR_RW(fan3_min, fan_min, 2);

  static ssize_t

  temp_show(struct device *dev, struct device_attribute *devattr, char *buf)

  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = w83627hf_update_device(dev);

  
  	u16 tmp = data->temp[nr];
  	return sprintf(buf, "%ld
  ", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
  					  : (long) TEMP_FROM_REG(tmp));

  }

  static ssize_t

  temp_max_show(struct device *dev, struct device_attribute *devattr, char *buf)

  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = w83627hf_update_device(dev);

  
  	u16 tmp = data->temp_max[nr];
  	return sprintf(buf, "%ld
  ", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
  					  : (long) TEMP_FROM_REG(tmp));

  }

  static ssize_t

  temp_max_hyst_show(struct device *dev, struct device_attribute *devattr,

  		   char *buf)
  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = w83627hf_update_device(dev);

  
  	u16 tmp = data->temp_max_hyst[nr];
  	return sprintf(buf, "%ld
  ", (nr) ? (long) LM75_TEMP_FROM_REG(tmp)
  					  : (long) TEMP_FROM_REG(tmp));

  }

  static ssize_t

  temp_max_store(struct device *dev, struct device_attribute *devattr,

  	       const char *buf, size_t count)
  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	u16 tmp;
  	long val;
  	int err;

  	err = kstrtol(buf, 10, &val);
  	if (err)
  		return err;
  
  	tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);

  	mutex_lock(&data->update_lock);

  	data->temp_max[nr] = tmp;
  	w83627hf_write_value(data, w83627hf_reg_temp_over[nr], tmp);

  	mutex_unlock(&data->update_lock);
  	return count;
  }
  
  static ssize_t

  temp_max_hyst_store(struct device *dev, struct device_attribute *devattr,

  		    const char *buf, size_t count)
  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	u16 tmp;
  	long val;
  	int err;
  
  	err = kstrtol(buf, 10, &val);
  	if (err)
  		return err;

  	tmp = (nr) ? LM75_TEMP_TO_REG(val) : TEMP_TO_REG(val);

  	mutex_lock(&data->update_lock);

  	data->temp_max_hyst[nr] = tmp;
  	w83627hf_write_value(data, w83627hf_reg_temp_hyst[nr], tmp);

  	mutex_unlock(&data->update_lock);
  	return count;
  }

  static SENSOR_DEVICE_ATTR_RO(temp1_input, temp, 0);
  static SENSOR_DEVICE_ATTR_RW(temp1_max, temp_max, 0);
  static SENSOR_DEVICE_ATTR_RW(temp1_max_hyst, temp_max_hyst, 0);
  static SENSOR_DEVICE_ATTR_RO(temp2_input, temp, 1);
  static SENSOR_DEVICE_ATTR_RW(temp2_max, temp_max, 1);
  static SENSOR_DEVICE_ATTR_RW(temp2_max_hyst, temp_max_hyst, 1);
  static SENSOR_DEVICE_ATTR_RO(temp3_input, temp, 2);
  static SENSOR_DEVICE_ATTR_RW(temp3_max, temp_max, 2);
  static SENSOR_DEVICE_ATTR_RW(temp3_max_hyst, temp_max_hyst, 2);

  static ssize_t

  cpu0_vid_show(struct device *dev, struct device_attribute *attr, char *buf)

  {
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return sprintf(buf, "%ld
  ", (long) vid_from_reg(data->vid, data->vrm));
  }

  static DEVICE_ATTR_RO(cpu0_vid);

  
  static ssize_t

  vrm_show(struct device *dev, struct device_attribute *attr, char *buf)

  {

  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	return sprintf(buf, "%ld
  ", (long) data->vrm);
  }
  static ssize_t

  vrm_store(struct device *dev, struct device_attribute *attr, const char *buf,
  	  size_t count)

  {

  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	unsigned long val;
  	int err;

  	err = kstrtoul(buf, 10, &val);
  	if (err)
  		return err;

  
  	if (val > 255)
  		return -EINVAL;

  	data->vrm = val;
  
  	return count;
  }

  static DEVICE_ATTR_RW(vrm);

  
  static ssize_t

  alarms_show(struct device *dev, struct device_attribute *attr, char *buf)

  {
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return sprintf(buf, "%ld
  ", (long) data->alarms);
  }

  static DEVICE_ATTR_RO(alarms);

  static ssize_t

  alarm_show(struct device *dev, struct device_attribute *attr, char *buf)

  {
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	int bitnr = to_sensor_dev_attr(attr)->index;
  	return sprintf(buf, "%u
  ", (data->alarms >> bitnr) & 1);
  }

  static SENSOR_DEVICE_ATTR_RO(in0_alarm, alarm, 0);
  static SENSOR_DEVICE_ATTR_RO(in1_alarm, alarm, 1);
  static SENSOR_DEVICE_ATTR_RO(in2_alarm, alarm, 2);
  static SENSOR_DEVICE_ATTR_RO(in3_alarm, alarm, 3);
  static SENSOR_DEVICE_ATTR_RO(in4_alarm, alarm, 8);
  static SENSOR_DEVICE_ATTR_RO(in5_alarm, alarm, 9);
  static SENSOR_DEVICE_ATTR_RO(in6_alarm, alarm, 10);
  static SENSOR_DEVICE_ATTR_RO(in7_alarm, alarm, 16);
  static SENSOR_DEVICE_ATTR_RO(in8_alarm, alarm, 17);
  static SENSOR_DEVICE_ATTR_RO(fan1_alarm, alarm, 6);
  static SENSOR_DEVICE_ATTR_RO(fan2_alarm, alarm, 7);
  static SENSOR_DEVICE_ATTR_RO(fan3_alarm, alarm, 11);
  static SENSOR_DEVICE_ATTR_RO(temp1_alarm, alarm, 4);
  static SENSOR_DEVICE_ATTR_RO(temp2_alarm, alarm, 5);
  static SENSOR_DEVICE_ATTR_RO(temp3_alarm, alarm, 13);

  static ssize_t

  beep_mask_show(struct device *dev, struct device_attribute *attr, char *buf)

  {
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return sprintf(buf, "%ld
  ",
  		      (long)BEEP_MASK_FROM_REG(data->beep_mask));

  }

  
  static ssize_t

  beep_mask_store(struct device *dev, struct device_attribute *attr,

  		const char *buf, size_t count)

  {

  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	unsigned long val;

  	int err;

  	err = kstrtoul(buf, 10, &val);
  	if (err)
  		return err;

  	mutex_lock(&data->update_lock);

  	/* preserve beep enable */
  	data->beep_mask = (data->beep_mask & 0x8000)
  			| BEEP_MASK_TO_REG(val);
  	w83627hf_write_value(data, W83781D_REG_BEEP_INTS1,
  			    data->beep_mask & 0xff);
  	w83627hf_write_value(data, W83781D_REG_BEEP_INTS3,
  			    ((data->beep_mask) >> 16) & 0xff);

  	w83627hf_write_value(data, W83781D_REG_BEEP_INTS2,

  			    (data->beep_mask >> 8) & 0xff);

  	mutex_unlock(&data->update_lock);

  	return count;
  }

  static DEVICE_ATTR_RW(beep_mask);

  static ssize_t

  beep_show(struct device *dev, struct device_attribute *attr, char *buf)

  {
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	int bitnr = to_sensor_dev_attr(attr)->index;
  	return sprintf(buf, "%u
  ", (data->beep_mask >> bitnr) & 1);
  }
  
  static ssize_t

  beep_store(struct device *dev, struct device_attribute *attr, const char *buf,
  	   size_t count)

  {
  	struct w83627hf_data *data = dev_get_drvdata(dev);
  	int bitnr = to_sensor_dev_attr(attr)->index;

  	u8 reg;

  	unsigned long bit;
  	int err;
  
  	err = kstrtoul(buf, 10, &bit);
  	if (err)
  		return err;

  	if (bit & ~1)
  		return -EINVAL;
  
  	mutex_lock(&data->update_lock);
  	if (bit)
  		data->beep_mask |= (1 << bitnr);
  	else
  		data->beep_mask &= ~(1 << bitnr);
  
  	if (bitnr < 8) {
  		reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS1);
  		if (bit)
  			reg |= (1 << bitnr);
  		else
  			reg &= ~(1 << bitnr);
  		w83627hf_write_value(data, W83781D_REG_BEEP_INTS1, reg);
  	} else if (bitnr < 16) {
  		reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS2);
  		if (bit)
  			reg |= (1 << (bitnr - 8));
  		else
  			reg &= ~(1 << (bitnr - 8));
  		w83627hf_write_value(data, W83781D_REG_BEEP_INTS2, reg);
  	} else {
  		reg = w83627hf_read_value(data, W83781D_REG_BEEP_INTS3);
  		if (bit)
  			reg |= (1 << (bitnr - 16));
  		else
  			reg &= ~(1 << (bitnr - 16));
  		w83627hf_write_value(data, W83781D_REG_BEEP_INTS3, reg);
  	}
  	mutex_unlock(&data->update_lock);
  
  	return count;
  }

  static SENSOR_DEVICE_ATTR_RW(in0_beep, beep, 0);
  static SENSOR_DEVICE_ATTR_RW(in1_beep, beep, 1);
  static SENSOR_DEVICE_ATTR_RW(in2_beep, beep, 2);
  static SENSOR_DEVICE_ATTR_RW(in3_beep, beep, 3);
  static SENSOR_DEVICE_ATTR_RW(in4_beep, beep, 8);
  static SENSOR_DEVICE_ATTR_RW(in5_beep, beep, 9);
  static SENSOR_DEVICE_ATTR_RW(in6_beep, beep, 10);
  static SENSOR_DEVICE_ATTR_RW(in7_beep, beep, 16);
  static SENSOR_DEVICE_ATTR_RW(in8_beep, beep, 17);
  static SENSOR_DEVICE_ATTR_RW(fan1_beep, beep, 6);
  static SENSOR_DEVICE_ATTR_RW(fan2_beep, beep, 7);
  static SENSOR_DEVICE_ATTR_RW(fan3_beep, beep, 11);
  static SENSOR_DEVICE_ATTR_RW(temp1_beep, beep, 4);
  static SENSOR_DEVICE_ATTR_RW(temp2_beep, beep, 5);
  static SENSOR_DEVICE_ATTR_RW(temp3_beep, beep, 13);
  static SENSOR_DEVICE_ATTR_RW(beep_enable, beep, 15);

  
  static ssize_t

  fan_div_show(struct device *dev, struct device_attribute *devattr, char *buf)

  {

  	int nr = to_sensor_dev_attr(devattr)->index;

  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return sprintf(buf, "%ld
  ",

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

  }

  /*
   * Note: we save and restore the fan minimum here, because its value is
   * determined in part by the fan divisor.  This follows the principle of
   * least surprise; the user doesn't expect the fan minimum to change just
   * because the divisor changed.
   */

  static ssize_t

  fan_div_store(struct device *dev, struct device_attribute *devattr,

  	      const char *buf, size_t count)

  {

  	int nr = to_sensor_dev_attr(devattr)->index;

  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	unsigned long min;
  	u8 reg;

  	unsigned long val;
  	int err;
  
  	err = kstrtoul(buf, 10, &val);
  	if (err)
  		return err;

  	mutex_lock(&data->update_lock);

  
  	/* Save fan_min */
  	min = FAN_FROM_REG(data->fan_min[nr],
  			   DIV_FROM_REG(data->fan_div[nr]));
  
  	data->fan_div[nr] = DIV_TO_REG(val);

  	reg = (w83627hf_read_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV)

  	       & (nr==0 ? 0xcf : 0x3f))
  	    | ((data->fan_div[nr] & 0x03) << (nr==0 ? 4 : 6));

  	w83627hf_write_value(data, nr==2 ? W83781D_REG_PIN : W83781D_REG_VID_FANDIV, reg);

  	reg = (w83627hf_read_value(data, W83781D_REG_VBAT)

  	       & ~(1 << (5 + nr)))
  	    | ((data->fan_div[nr] & 0x04) << (3 + nr));

  	w83627hf_write_value(data, W83781D_REG_VBAT, reg);

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

  	w83627hf_write_value(data, W83627HF_REG_FAN_MIN(nr), data->fan_min[nr]);

  	mutex_unlock(&data->update_lock);

  	return count;
  }

  static SENSOR_DEVICE_ATTR_RW(fan1_div, fan_div, 0);
  static SENSOR_DEVICE_ATTR_RW(fan2_div, fan_div, 1);
  static SENSOR_DEVICE_ATTR_RW(fan3_div, fan_div, 2);

  static ssize_t

  pwm_show(struct device *dev, struct device_attribute *devattr, char *buf)

  {

  	int nr = to_sensor_dev_attr(devattr)->index;

  	struct w83627hf_data *data = w83627hf_update_device(dev);

  	return sprintf(buf, "%ld
  ", (long) data->pwm[nr]);

  }
  
  static ssize_t

  pwm_store(struct device *dev, struct device_attribute *devattr,

  	  const char *buf, size_t count)

  {

  	int nr = to_sensor_dev_attr(devattr)->index;

  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	unsigned long val;
  	int err;
  
  	err = kstrtoul(buf, 10, &val);
  	if (err)
  		return err;

  	mutex_lock(&data->update_lock);

  
  	if (data->type == w83627thf) {
  		/* bits 0-3 are reserved  in 627THF */

  		data->pwm[nr] = PWM_TO_REG(val) & 0xf0;

  		w83627hf_write_value(data,

  				     W836X7HF_REG_PWM(data->type, nr),

  				     data->pwm[nr] |

  				     (w83627hf_read_value(data,

  				     W836X7HF_REG_PWM(data->type, nr)) & 0x0f));
  	} else {

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

  		w83627hf_write_value(data,

  				     W836X7HF_REG_PWM(data->type, nr),

  				     data->pwm[nr]);

  	}

  	mutex_unlock(&data->update_lock);

  	return count;
  }

  static SENSOR_DEVICE_ATTR_RW(pwm1, pwm, 0);
  static SENSOR_DEVICE_ATTR_RW(pwm2, pwm, 1);
  static SENSOR_DEVICE_ATTR_RW(pwm3, pwm, 2);

  static ssize_t

  pwm_enable_show(struct device *dev, struct device_attribute *devattr,
  		char *buf)

  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	return sprintf(buf, "%d
  ", data->pwm_enable[nr]);
  }
  
  static ssize_t

  pwm_enable_store(struct device *dev, struct device_attribute *devattr,
  		 const char *buf, size_t count)

  {
  	int nr = to_sensor_dev_attr(devattr)->index;
  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	u8 reg;

  	unsigned long val;
  	int err;

  	err = kstrtoul(buf, 10, &val);
  	if (err)
  		return err;
  
  	if (!val || val > 3)	/* modes 1, 2 and 3 are supported */

  		return -EINVAL;
  	mutex_lock(&data->update_lock);
  	data->pwm_enable[nr] = val;
  	reg = w83627hf_read_value(data, W83627THF_REG_PWM_ENABLE[nr]);
  	reg &= ~(0x03 << W83627THF_PWM_ENABLE_SHIFT[nr]);
  	reg |= (val - 1) << W83627THF_PWM_ENABLE_SHIFT[nr];
  	w83627hf_write_value(data, W83627THF_REG_PWM_ENABLE[nr], reg);
  	mutex_unlock(&data->update_lock);
  	return count;
  }

  static SENSOR_DEVICE_ATTR_RW(pwm1_enable, pwm_enable, 0);
  static SENSOR_DEVICE_ATTR_RW(pwm2_enable, pwm_enable, 1);
  static SENSOR_DEVICE_ATTR_RW(pwm3_enable, pwm_enable, 2);

  
  static ssize_t

  pwm_freq_show(struct device *dev, struct device_attribute *devattr, char *buf)

  {

  	int nr = to_sensor_dev_attr(devattr)->index;

  	struct w83627hf_data *data = w83627hf_update_device(dev);
  	if (data->type == w83627hf)
  		return sprintf(buf, "%ld
  ",

  			pwm_freq_from_reg_627hf(data->pwm_freq[nr]));

  	else
  		return sprintf(buf, "%ld
  ",

  			pwm_freq_from_reg(data->pwm_freq[nr]));

  }
  
  static ssize_t

  pwm_freq_store(struct device *dev, struct device_attribute *devattr,

  	       const char *buf, size_t count)

  {

  	int nr = to_sensor_dev_attr(devattr)->index;

  	struct w83627hf_data *data = dev_get_drvdata(dev);
  	static const u8 mask[]={0xF8, 0x8F};

  	unsigned long val;
  	int err;

  	err = kstrtoul(buf, 10, &val);
  	if (err)
  		return err;

  
  	mutex_lock(&data->update_lock);
  
  	if (data->type == w83627hf) {

  		data->pwm_freq[nr] = pwm_freq_to_reg_627hf(val);

  		w83627hf_write_value(data, W83627HF_REG_PWM_FREQ,

  				(data->pwm_freq[nr] << (nr*4)) |

  				(w83627hf_read_value(data,

  				W83627HF_REG_PWM_FREQ) & mask[nr]));

  	} else {

  		data->pwm_freq[nr] = pwm_freq_to_reg(val);
  		w83627hf_write_value(data, W83637HF_REG_PWM_FREQ[nr],
  				data->pwm_freq[nr]);

  	}
  
  	mutex_unlock(&data->update_lock);
  	return count;
  }

  static SENSOR_DEVICE_ATTR_RW(pwm1_freq, pwm_freq, 0);
  static SENSOR_DEVICE_ATTR_RW(pwm2_freq, pwm_freq, 1);
  static SENSOR_DEVICE_ATTR_RW(pwm3_freq, pwm_freq, 2);

  
  static ssize_t

  temp_type_show(struct device *dev, struct device_attribute *devattr,

  	       char *buf)

  {

  	int nr = to_sensor_dev_attr(devattr)->index;

  	struct w83627hf_data *data = w83627hf_update_device(dev);

  	return sprintf(buf, "%ld
  ", (long) data->sens[nr]);

  }
  
  static ssize_t

  temp_type_store(struct device *dev, struct device_attribute *devattr,

  		const char *buf, size_t count)

  {

  	int nr = to_sensor_dev_attr(devattr)->index;

  	struct w83627hf_data *data = dev_get_drvdata(dev);

  	unsigned long val;
  	u32 tmp;
  	int err;

  	err = kstrtoul(buf, 10, &val);
  	if (err)
  		return err;

  	mutex_lock(&data->update_lock);

  
  	switch (val) {
  	case 1:		/* PII/Celeron diode */

  		tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
  		w83627hf_write_value(data, W83781D_REG_SCFG1,

  				    tmp | BIT_SCFG1[nr]);

  		tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
  		w83627hf_write_value(data, W83781D_REG_SCFG2,

  				    tmp | BIT_SCFG2[nr]);
  		data->sens[nr] = val;

  		break;
  	case 2:		/* 3904 */

  		tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
  		w83627hf_write_value(data, W83781D_REG_SCFG1,

  				    tmp | BIT_SCFG1[nr]);

  		tmp = w83627hf_read_value(data, W83781D_REG_SCFG2);
  		w83627hf_write_value(data, W83781D_REG_SCFG2,

  				    tmp & ~BIT_SCFG2[nr]);
  		data->sens[nr] = val;

  		break;

  	case W83781D_DEFAULT_BETA:
  		dev_warn(dev, "Sensor type %d is deprecated, please use 4 "
  			 "instead
  ", W83781D_DEFAULT_BETA);

  		fallthrough;

  	case 4:		/* thermistor */

  		tmp = w83627hf_read_value(data, W83781D_REG_SCFG1);
  		w83627hf_write_value(data, W83781D_REG_SCFG1,

  				    tmp & ~BIT_SCFG1[nr]);
  		data->sens[nr] = val;

  		break;
  	default:

  		dev_err(dev,

  		       "Invalid sensor type %ld; must be 1, 2, or 4
  ",
  		       (long) val);

  		break;
  	}

  	mutex_unlock(&data->update_lock);

  	return count;
  }

  static SENSOR_DEVICE_ATTR_RW(temp1_type, temp_type, 0);
  static SENSOR_DEVICE_ATTR_RW(temp2_type, temp_type, 1);
  static SENSOR_DEVICE_ATTR_RW(temp3_type, temp_type, 2);

  static ssize_t

  name_show(struct device *dev, struct device_attribute *devattr, char *buf)

  {
  	struct w83627hf_data *data = dev_get_drvdata(dev);
  
  	return sprintf(buf, "%s
  ", data->name);
  }

  static DEVICE_ATTR_RO(name);

  
  static int __init w83627hf_find(int sioaddr, unsigned short *addr,
  				struct w83627hf_sio_data *sio_data)

  {

  	int err;

  	u16 val;

  	static __initconst char *const names[] = {

  		"W83627HF",
  		"W83627THF",
  		"W83697HF",
  		"W83637HF",
  		"W83687THF",
  	};

  	sio_data->sioaddr = sioaddr;

  	err = superio_enter(sio_data);
  	if (err)
  		return err;
  
  	err = -ENODEV;

  	val = force_id ? force_id : superio_inb(sio_data, DEVID);

  	switch (val) {
  	case W627_DEVID:
  		sio_data->type = w83627hf;
  		break;
  	case W627THF_DEVID:
  		sio_data->type = w83627thf;
  		break;
  	case W697_DEVID:
  		sio_data->type = w83697hf;
  		break;
  	case W637_DEVID:
  		sio_data->type = w83637hf;
  		break;
  	case W687THF_DEVID:
  		sio_data->type = w83687thf;
  		break;

  	case 0xff:	/* No device at all */
  		goto exit;

  	default:

  		pr_debug(DRVNAME ": Unsupported chip (DEVID=0x%02x)
  ", val);

  		goto exit;

  	}

  	superio_select(sio_data, W83627HF_LD_HWM);
  	val = (superio_inb(sio_data, WINB_BASE_REG) << 8) |
  	       superio_inb(sio_data, WINB_BASE_REG + 1);

  	*addr = val & WINB_ALIGNMENT;

  	if (*addr == 0) {

  		pr_warn("Base address not set, skipping
  ");

  		goto exit;

  	}

  	val = superio_inb(sio_data, WINB_ACT_REG);

  	if (!(val & 0x01)) {

  		pr_warn("Enabling HWM logical device
  ");

  		superio_outb(sio_data, WINB_ACT_REG, val | 0x01);

  	}
  
  	err = 0;

  	pr_info(DRVNAME ": Found %s chip at %#x
  ",
  		names[sio_data->type], *addr);

  
   exit:

  	superio_exit(sio_data);

  	return err;

  }

  #define VIN_UNIT_ATTRS(_X_)	\
  	&sensor_dev_attr_in##_X_##_input.dev_attr.attr,		\
  	&sensor_dev_attr_in##_X_##_min.dev_attr.attr,		\

  	&sensor_dev_attr_in##_X_##_max.dev_attr.attr,		\
  	&sensor_dev_attr_in##_X_##_alarm.dev_attr.attr,		\
  	&sensor_dev_attr_in##_X_##_beep.dev_attr.attr

  
  #define FAN_UNIT_ATTRS(_X_)	\
  	&sensor_dev_attr_fan##_X_##_input.dev_attr.attr,	\
  	&sensor_dev_attr_fan##_X_##_min.dev_attr.attr,		\

  	&sensor_dev_attr_fan##_X_##_div.dev_attr.attr,		\
  	&sensor_dev_attr_fan##_X_##_alarm.dev_attr.attr,	\
  	&sensor_dev_attr_fan##_X_##_beep.dev_attr.attr

  
  #define TEMP_UNIT_ATTRS(_X_)	\
  	&sensor_dev_attr_temp##_X_##_input.dev_attr.attr,	\
  	&sensor_dev_attr_temp##_X_##_max.dev_attr.attr,		\
  	&sensor_dev_attr_temp##_X_##_max_hyst.dev_attr.attr,	\

  	&sensor_dev_attr_temp##_X_##_type.dev_attr.attr,	\
  	&sensor_dev_attr_temp##_X_##_alarm.dev_attr.attr,	\
  	&sensor_dev_attr_temp##_X_##_beep.dev_attr.attr

  static struct attribute *w83627hf_attributes[] = {
  	&dev_attr_in0_input.attr,
  	&dev_attr_in0_min.attr,
  	&dev_attr_in0_max.attr,

  	&sensor_dev_attr_in0_alarm.dev_attr.attr,
  	&sensor_dev_attr_in0_beep.dev_attr.attr,

  	VIN_UNIT_ATTRS(2),
  	VIN_UNIT_ATTRS(3),
  	VIN_UNIT_ATTRS(4),
  	VIN_UNIT_ATTRS(7),
  	VIN_UNIT_ATTRS(8),
  
  	FAN_UNIT_ATTRS(1),
  	FAN_UNIT_ATTRS(2),
  
  	TEMP_UNIT_ATTRS(1),
  	TEMP_UNIT_ATTRS(2),

  
  	&dev_attr_alarms.attr,

  	&sensor_dev_attr_beep_enable.dev_attr.attr,

  	&dev_attr_beep_mask.attr,

  	&sensor_dev_attr_pwm1.dev_attr.attr,
  	&sensor_dev_attr_pwm2.dev_attr.attr,

  	&dev_attr_name.attr,

  	NULL
  };
  
  static const struct attribute_group w83627hf_group = {
  	.attrs = w83627hf_attributes,
  };
  
  static struct attribute *w83627hf_attributes_opt[] = {

  	VIN_UNIT_ATTRS(1),
  	VIN_UNIT_ATTRS(5),
  	VIN_UNIT_ATTRS(6),
  
  	FAN_UNIT_ATTRS(3),
  	TEMP_UNIT_ATTRS(3),
  	&sensor_dev_attr_pwm3.dev_attr.attr,
  
  	&sensor_dev_attr_pwm1_freq.dev_attr.attr,
  	&sensor_dev_attr_pwm2_freq.dev_attr.attr,
  	&sensor_dev_attr_pwm3_freq.dev_attr.attr,

  
  	&sensor_dev_attr_pwm1_enable.dev_attr.attr,
  	&sensor_dev_attr_pwm2_enable.dev_attr.attr,
  	&sensor_dev_attr_pwm3_enable.dev_attr.attr,

  	NULL
  };
  
  static const struct attribute_group w83627hf_group_opt = {
  	.attrs = w83627hf_attributes_opt,
  };

  static int w83627hf_probe(struct platform_device *pdev)

  {

  	struct device *dev = &pdev->dev;

  	struct w83627hf_sio_data *sio_data = dev_get_platdata(dev);

  	struct w83627hf_data *data;

  	struct resource *res;

  	int err, i;

  	static const char *names[] = {
  		"w83627hf",
  		"w83627thf",
  		"w83697hf",
  		"w83637hf",
  		"w83687thf",
  	};
  
  	res = platform_get_resource(pdev, IORESOURCE_IO, 0);

  	if (!devm_request_region(dev, res->start, WINB_REGION_SIZE, DRVNAME)) {

  		dev_err(dev, "Failed to request region 0x%lx-0x%lx
  ",
  			(unsigned long)res->start,
  			(unsigned long)(res->start + WINB_REGION_SIZE - 1));

  		return -EBUSY;

  	}

  	data = devm_kzalloc(dev, sizeof(struct w83627hf_data), GFP_KERNEL);
  	if (!data)
  		return -ENOMEM;

  	data->addr = res->start;
  	data->type = sio_data->type;
  	data->name = names[sio_data->type];

  	mutex_init(&data->lock);

  	mutex_init(&data->update_lock);

  	platform_set_drvdata(pdev, data);

  	/* Initialize the chip */

  	w83627hf_init_device(pdev);

  
  	/* A few vars need to be filled upon startup */

  	for (i = 0; i <= 2; i++)
  		data->fan_min[i] = w83627hf_read_value(
  					data, W83627HF_REG_FAN_MIN(i));

  	w83627hf_update_fan_div(data);

  	/* Register common device attributes */

  	err = sysfs_create_group(&dev->kobj, &w83627hf_group);
  	if (err)

  		return err;

  	/* Register chip-specific device attributes */

  	if (data->type == w83627hf || data->type == w83697hf)

  		if ((err = device_create_file(dev,
  				&sensor_dev_attr_in5_input.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_in5_min.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_in5_max.dev_attr))
  		 || (err = device_create_file(dev,

  				&sensor_dev_attr_in5_alarm.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_in5_beep.dev_attr))
  		 || (err = device_create_file(dev,

  				&sensor_dev_attr_in6_input.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_in6_min.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_in6_max.dev_attr))
  		 || (err = device_create_file(dev,

  				&sensor_dev_attr_in6_alarm.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_in6_beep.dev_attr))
  		 || (err = device_create_file(dev,

  				&sensor_dev_attr_pwm1_freq.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_pwm2_freq.dev_attr)))

  			goto error;

  	if (data->type != w83697hf)

  		if ((err = device_create_file(dev,
  				&sensor_dev_attr_in1_input.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_in1_min.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_in1_max.dev_attr))
  		 || (err = device_create_file(dev,

  				&sensor_dev_attr_in1_alarm.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_in1_beep.dev_attr))
  		 || (err = device_create_file(dev,

  				&sensor_dev_attr_fan3_input.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_fan3_min.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_fan3_div.dev_attr))
  		 || (err = device_create_file(dev,

  				&sensor_dev_attr_fan3_alarm.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_fan3_beep.dev_attr))
  		 || (err = device_create_file(dev,

  				&sensor_dev_attr_temp3_input.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_temp3_max.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_temp3_max_hyst.dev_attr))
  		 || (err = device_create_file(dev,

  				&sensor_dev_attr_temp3_alarm.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_temp3_beep.dev_attr))
  		 || (err = device_create_file(dev,

  				&sensor_dev_attr_temp3_type.dev_attr)))

  			goto error;

  	if (data->type != w83697hf && data->vid != 0xff) {

  		/* Convert VID to voltage based on VRM */
  		data->vrm = vid_which_vrm();

  		if ((err = device_create_file(dev, &dev_attr_cpu0_vid))
  		 || (err = device_create_file(dev, &dev_attr_vrm)))

  			goto error;

  	}

  	if (data->type == w83627thf || data->type == w83637hf

  	    || data->type == w83687thf) {
  		err = device_create_file(dev, &sensor_dev_attr_pwm3.dev_attr);
  		if (err)

  			goto error;

  	}

  	if (data->type == w83637hf || data->type == w83687thf)

  		if ((err = device_create_file(dev,
  				&sensor_dev_attr_pwm1_freq.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_pwm2_freq.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_pwm3_freq.dev_attr)))

  			goto error;

  	if (data->type != w83627hf)
  		if ((err = device_create_file(dev,
  				&sensor_dev_attr_pwm1_enable.dev_attr))
  		 || (err = device_create_file(dev,
  				&sensor_dev_attr_pwm2_enable.dev_attr)))

  			goto error;

  
  	if (data->type == w83627thf || data->type == w83637hf

  	    || data->type == w83687thf) {
  		err = device_create_file(dev,
  					 &sensor_dev_attr_pwm3_enable.dev_attr);
  		if (err)

  			goto error;

  	}

  	data->hwmon_dev = hwmon_device_register(dev);
  	if (IS_ERR(data->hwmon_dev)) {
  		err = PTR_ERR(data->hwmon_dev);

  		goto error;

  	}

  
  	return 0;

   error:

  	sysfs_remove_group(&dev->kobj, &w83627hf_group);
  	sysfs_remove_group(&dev->kobj, &w83627hf_group_opt);

  	return err;
  }

  static int w83627hf_remove(struct platform_device *pdev)

  {

  	struct w83627hf_data *data = platform_get_drvdata(pdev);

  	hwmon_device_unregister(data->hwmon_dev);

  	sysfs_remove_group(&pdev->dev.kobj, &w83627hf_group);
  	sysfs_remove_group(&pdev->dev.kobj, &w83627hf_group_opt);

  	return 0;
  }

  /* Registers 0x50-0x5f are banked */
  static inline void w83627hf_set_bank(struct w83627hf_data *data, u16 reg)
  {
  	if ((reg & 0x00f0) == 0x50) {
  		outb_p(W83781D_REG_BANK, data->addr + W83781D_ADDR_REG_OFFSET);
  		outb_p(reg >> 8, data->addr + W83781D_DATA_REG_OFFSET);
  	}
  }
  
  /* Not strictly necessary, but play it safe for now */
  static inline void w83627hf_reset_bank(struct w83627hf_data *data, u16 reg)
  {
  	if (reg & 0xff00) {
  		outb_p(W83781D_REG_BANK, data->addr + W83781D_ADDR_REG_OFFSET);
  		outb_p(0, data->addr + W83781D_DATA_REG_OFFSET);
  	}
  }

  static int w83627hf_read_value(struct w83627hf_data *data, u16 reg)

  {

  	int res, word_sized;

  	mutex_lock(&data->lock);

  	word_sized = (((reg & 0xff00) == 0x100)
  		   || ((reg & 0xff00) == 0x200))
  		  && (((reg & 0x00ff) == 0x50)
  		   || ((reg & 0x00ff) == 0x53)
  		   || ((reg & 0x00ff) == 0x55));

  	w83627hf_set_bank(data, reg);

  	outb_p(reg & 0xff, data->addr + W83781D_ADDR_REG_OFFSET);
  	res = inb_p(data->addr + W83781D_DATA_REG_OFFSET);

  	if (word_sized) {
  		outb_p((reg & 0xff) + 1,

  		       data->addr + W83781D_ADDR_REG_OFFSET);

  		res =

  		    (res << 8) + inb_p(data->addr +

  				       W83781D_DATA_REG_OFFSET);
  	}

  	w83627hf_reset_bank(data, reg);

  	mutex_unlock(&data->lock);

  	return res;
  }

  static int w83627thf_read_gpio5(struct platform_device *pdev)

  {

  	struct w83627hf_sio_data *sio_data = dev_get_platdata(&pdev->dev);

  	int res = 0xff, sel;

  	if (superio_enter(sio_data)) {
  		/*
  		 * Some other driver reserved the address space for itself.
  		 * We don't want to fail driver instantiation because of that,
  		 * so display a warning and keep going.
  		 */
  		dev_warn(&pdev->dev,
  			 "Can not read VID data: Failed to enable SuperIO access
  ");
  		return res;
  	}

  	superio_select(sio_data, W83627HF_LD_GPIO5);

  	res = 0xff;

  	/* Make sure these GPIO pins are enabled */

  	if (!(superio_inb(sio_data, W83627THF_GPIO5_EN) & (1<<3))) {

  		dev_dbg(&pdev->dev, "GPIO5 disabled, no VID function
  ");

  		goto exit;
  	}

  	/*
  	 * Make sure the pins are configured for input
  	 * There must be at least five (VRM 9), and possibly 6 (VRM 10)
  	 */

  	sel = superio_inb(sio_data, W83627THF_GPIO5_IOSR) & 0x3f;

  	if ((sel & 0x1f) != 0x1f) {

  		dev_dbg(&pdev->dev, "GPIO5 not configured for VID "

  			"function
  ");
  		goto exit;
  	}

  	dev_info(&pdev->dev, "Reading VID from GPIO5
  ");

  	res = superio_inb(sio_data, W83627THF_GPIO5_DR) & sel;

  
  exit:

  	superio_exit(sio_data);

  	return res;
  }

  static int w83687thf_read_vid(struct platform_device *pdev)

  {