Eric Lee / smarc-fsl-linux-kernel

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drivers/mfd/da9055-core.c 9.47 KB
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2874c5fd2   Thomas Gleixner   treewide: Replace... 
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  // SPDX-License-Identifier: GPL-2.0-or-later
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  /*
   * Device access for Dialog DA9055 PMICs.
   *
   * Copyright(c) 2012 Dialog Semiconductor Ltd.
   *
   * Author: David Dajun Chen <dchen@diasemi.com>
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   */
  
  #include <linux/module.h>
  #include <linux/device.h>
  #include <linux/input.h>
  #include <linux/irq.h>
  #include <linux/mutex.h>
  
  #include <linux/mfd/core.h>
  #include <linux/mfd/da9055/core.h>
  #include <linux/mfd/da9055/pdata.h>
  #include <linux/mfd/da9055/reg.h>
  
  #define DA9055_IRQ_NONKEY_MASK		0x01
  #define DA9055_IRQ_ALM_MASK		0x02
  #define DA9055_IRQ_TICK_MASK		0x04
  #define DA9055_IRQ_ADC_MASK		0x08
  #define DA9055_IRQ_BUCK_ILIM_MASK	0x08
  
  static bool da9055_register_readable(struct device *dev, unsigned int reg)
  {
  	switch (reg) {
  	case DA9055_REG_STATUS_A:
  	case DA9055_REG_STATUS_B:
  	case DA9055_REG_EVENT_A:
  	case DA9055_REG_EVENT_B:
  	case DA9055_REG_EVENT_C:
  	case DA9055_REG_IRQ_MASK_A:
  	case DA9055_REG_IRQ_MASK_B:
  	case DA9055_REG_IRQ_MASK_C:
  
  	case DA9055_REG_CONTROL_A:
  	case DA9055_REG_CONTROL_B:
  	case DA9055_REG_CONTROL_C:
  	case DA9055_REG_CONTROL_D:
  	case DA9055_REG_CONTROL_E:
  
  	case DA9055_REG_ADC_MAN:
  	case DA9055_REG_ADC_CONT:
  	case DA9055_REG_VSYS_MON:
  	case DA9055_REG_ADC_RES_L:
  	case DA9055_REG_ADC_RES_H:
  	case DA9055_REG_VSYS_RES:
  	case DA9055_REG_ADCIN1_RES:
  	case DA9055_REG_ADCIN2_RES:
  	case DA9055_REG_ADCIN3_RES:
  
  	case DA9055_REG_COUNT_S:
  	case DA9055_REG_COUNT_MI:
  	case DA9055_REG_COUNT_H:
  	case DA9055_REG_COUNT_D:
  	case DA9055_REG_COUNT_MO:
  	case DA9055_REG_COUNT_Y:
  	case DA9055_REG_ALARM_H:
  	case DA9055_REG_ALARM_D:
  	case DA9055_REG_ALARM_MI:
  	case DA9055_REG_ALARM_MO:
  	case DA9055_REG_ALARM_Y:
  
  	case DA9055_REG_GPIO0_1:
  	case DA9055_REG_GPIO2:
  	case DA9055_REG_GPIO_MODE0_2:
  
  	case DA9055_REG_BCORE_CONT:
  	case DA9055_REG_BMEM_CONT:
  	case DA9055_REG_LDO1_CONT:
  	case DA9055_REG_LDO2_CONT:
  	case DA9055_REG_LDO3_CONT:
  	case DA9055_REG_LDO4_CONT:
  	case DA9055_REG_LDO5_CONT:
  	case DA9055_REG_LDO6_CONT:
  	case DA9055_REG_BUCK_LIM:
  	case DA9055_REG_BCORE_MODE:
  	case DA9055_REG_VBCORE_A:
  	case DA9055_REG_VBMEM_A:
  	case DA9055_REG_VLDO1_A:
  	case DA9055_REG_VLDO2_A:
  	case DA9055_REG_VLDO3_A:
  	case DA9055_REG_VLDO4_A:
  	case DA9055_REG_VLDO5_A:
  	case DA9055_REG_VLDO6_A:
  	case DA9055_REG_VBCORE_B:
  	case DA9055_REG_VBMEM_B:
  	case DA9055_REG_VLDO1_B:
  	case DA9055_REG_VLDO2_B:
  	case DA9055_REG_VLDO3_B:
  	case DA9055_REG_VLDO4_B:
  	case DA9055_REG_VLDO5_B:
  	case DA9055_REG_VLDO6_B:
  		return true;
  	default:
  		return false;
  	}
  }
  
  static bool da9055_register_writeable(struct device *dev, unsigned int reg)
  {
  	switch (reg) {
  	case DA9055_REG_STATUS_A:
  	case DA9055_REG_STATUS_B:
  	case DA9055_REG_EVENT_A:
  	case DA9055_REG_EVENT_B:
  	case DA9055_REG_EVENT_C:
  	case DA9055_REG_IRQ_MASK_A:
  	case DA9055_REG_IRQ_MASK_B:
  	case DA9055_REG_IRQ_MASK_C:
  
  	case DA9055_REG_CONTROL_A:
  	case DA9055_REG_CONTROL_B:
  	case DA9055_REG_CONTROL_C:
  	case DA9055_REG_CONTROL_D:
  	case DA9055_REG_CONTROL_E:
  
  	case DA9055_REG_ADC_MAN:
  	case DA9055_REG_ADC_CONT:
  	case DA9055_REG_VSYS_MON:
  	case DA9055_REG_ADC_RES_L:
  	case DA9055_REG_ADC_RES_H:
  	case DA9055_REG_VSYS_RES:
  	case DA9055_REG_ADCIN1_RES:
  	case DA9055_REG_ADCIN2_RES:
  	case DA9055_REG_ADCIN3_RES:
  
  	case DA9055_REG_COUNT_S:
  	case DA9055_REG_COUNT_MI:
  	case DA9055_REG_COUNT_H:
  	case DA9055_REG_COUNT_D:
  	case DA9055_REG_COUNT_MO:
  	case DA9055_REG_COUNT_Y:
  	case DA9055_REG_ALARM_H:
  	case DA9055_REG_ALARM_D:
  	case DA9055_REG_ALARM_MI:
  	case DA9055_REG_ALARM_MO:
  	case DA9055_REG_ALARM_Y:
  
  	case DA9055_REG_GPIO0_1:
  	case DA9055_REG_GPIO2:
  	case DA9055_REG_GPIO_MODE0_2:
  
  	case DA9055_REG_BCORE_CONT:
  	case DA9055_REG_BMEM_CONT:
  	case DA9055_REG_LDO1_CONT:
  	case DA9055_REG_LDO2_CONT:
  	case DA9055_REG_LDO3_CONT:
  	case DA9055_REG_LDO4_CONT:
  	case DA9055_REG_LDO5_CONT:
  	case DA9055_REG_LDO6_CONT:
  	case DA9055_REG_BUCK_LIM:
  	case DA9055_REG_BCORE_MODE:
  	case DA9055_REG_VBCORE_A:
  	case DA9055_REG_VBMEM_A:
  	case DA9055_REG_VLDO1_A:
  	case DA9055_REG_VLDO2_A:
  	case DA9055_REG_VLDO3_A:
  	case DA9055_REG_VLDO4_A:
  	case DA9055_REG_VLDO5_A:
  	case DA9055_REG_VLDO6_A:
  	case DA9055_REG_VBCORE_B:
  	case DA9055_REG_VBMEM_B:
  	case DA9055_REG_VLDO1_B:
  	case DA9055_REG_VLDO2_B:
  	case DA9055_REG_VLDO3_B:
  	case DA9055_REG_VLDO4_B:
  	case DA9055_REG_VLDO5_B:
  	case DA9055_REG_VLDO6_B:
  		return true;
  	default:
  		return false;
  	}
  }
  
  static bool da9055_register_volatile(struct device *dev, unsigned int reg)
  {
  	switch (reg) {
  	case DA9055_REG_STATUS_A:
  	case DA9055_REG_STATUS_B:
  	case DA9055_REG_EVENT_A:
  	case DA9055_REG_EVENT_B:
  	case DA9055_REG_EVENT_C:
  
  	case DA9055_REG_CONTROL_A:
  	case DA9055_REG_CONTROL_E:
  
  	case DA9055_REG_ADC_MAN:
  	case DA9055_REG_ADC_RES_L:
  	case DA9055_REG_ADC_RES_H:
  	case DA9055_REG_VSYS_RES:
  	case DA9055_REG_ADCIN1_RES:
  	case DA9055_REG_ADCIN2_RES:
  	case DA9055_REG_ADCIN3_RES:
  
  	case DA9055_REG_COUNT_S:
  	case DA9055_REG_COUNT_MI:
  	case DA9055_REG_COUNT_H:
  	case DA9055_REG_COUNT_D:
  	case DA9055_REG_COUNT_MO:
  	case DA9055_REG_COUNT_Y:
  	case DA9055_REG_ALARM_MI:
  
  	case DA9055_REG_BCORE_CONT:
  	case DA9055_REG_BMEM_CONT:
  	case DA9055_REG_LDO1_CONT:
  	case DA9055_REG_LDO2_CONT:
  	case DA9055_REG_LDO3_CONT:
  	case DA9055_REG_LDO4_CONT:
  	case DA9055_REG_LDO5_CONT:
  	case DA9055_REG_LDO6_CONT:
  		return true;
  	default:
  		return false;
  	}
  }
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  static const struct regmap_irq da9055_irqs[] = {
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  	[DA9055_IRQ_NONKEY] = {
  		.reg_offset = 0,
  		.mask = DA9055_IRQ_NONKEY_MASK,
  	},
  	[DA9055_IRQ_ALARM] = {
  		.reg_offset = 0,
  		.mask = DA9055_IRQ_ALM_MASK,
  	},
  	[DA9055_IRQ_TICK] = {
  		.reg_offset = 0,
  		.mask = DA9055_IRQ_TICK_MASK,
  	},
  	[DA9055_IRQ_HWMON] = {
  		.reg_offset = 0,
  		.mask = DA9055_IRQ_ADC_MASK,
  	},
  	[DA9055_IRQ_REGULATOR] = {
  		.reg_offset = 1,
  		.mask = DA9055_IRQ_BUCK_ILIM_MASK,
  	},
  };
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  const struct regmap_config da9055_regmap_config = {
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  	.reg_bits = 8,
  	.val_bits = 8,
  
  	.cache_type = REGCACHE_RBTREE,
  
  	.max_register = DA9055_MAX_REGISTER_CNT,
  	.readable_reg = da9055_register_readable,
  	.writeable_reg = da9055_register_writeable,
  	.volatile_reg = da9055_register_volatile,
  };
  EXPORT_SYMBOL_GPL(da9055_regmap_config);
  
  static struct resource da9055_onkey_resource = {
  	.name = "ONKEY",
  	.start = DA9055_IRQ_NONKEY,
  	.end   = DA9055_IRQ_NONKEY,
  	.flags = IORESOURCE_IRQ,
  };
  
  static struct resource da9055_rtc_resource[] = {
  	{
  		.name = "ALM",
  		.start = DA9055_IRQ_ALARM,
  		.end   = DA9055_IRQ_ALARM,
  		.flags = IORESOURCE_IRQ,
  	},
  	{
  		.name = "TICK",
  		.start = DA9055_IRQ_TICK,
  		.end   = DA9055_IRQ_TICK,
  		.flags = IORESOURCE_IRQ,
  	},
  };
  
  static struct resource da9055_hwmon_resource = {
  	.name = "HWMON",
  	.start = DA9055_IRQ_HWMON,
  	.end   = DA9055_IRQ_HWMON,
  	.flags = IORESOURCE_IRQ,
  };
  
  static struct resource da9055_ld05_6_resource = {
  	.name = "REGULATOR",
  	.start = DA9055_IRQ_REGULATOR,
  	.end   = DA9055_IRQ_REGULATOR,
  	.flags = IORESOURCE_IRQ,
  };
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  static const struct mfd_cell da9055_devs[] = {
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  	{
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  		.of_compatible = "dlg,da9055-gpio",
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  		.name = "da9055-gpio",
  	},
  	{
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  		.of_compatible = "dlg,da9055-regulator",
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  		.name = "da9055-regulator",
  		.id = 1,
  	},
  	{
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  		.of_compatible = "dlg,da9055-regulator",
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  		.name = "da9055-regulator",
  		.id = 2,
  	},
  	{
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  		.of_compatible = "dlg,da9055-regulator",
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  		.name = "da9055-regulator",
  		.id = 3,
  	},
  	{
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  		.of_compatible = "dlg,da9055-regulator",
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  		.name = "da9055-regulator",
  		.id = 4,
  	},
  	{
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  		.of_compatible = "dlg,da9055-regulator",
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  		.name = "da9055-regulator",
  		.id = 5,
  	},
  	{
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  		.of_compatible = "dlg,da9055-regulator",
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  		.name = "da9055-regulator",
  		.id = 6,
  	},
  	{
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  		.of_compatible = "dlg,da9055-regulator",
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  		.name = "da9055-regulator",
  		.id = 7,
  		.resources = &da9055_ld05_6_resource,
  		.num_resources = 1,
  	},
  	{
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  		.of_compatible = "dlg,da9055-regulator",
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  		.name = "da9055-regulator",
  		.resources = &da9055_ld05_6_resource,
  		.num_resources = 1,
  		.id = 8,
  	},
  	{
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  		.of_compatible = "dlg,da9055-onkey",
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  		.name = "da9055-onkey",
  		.resources = &da9055_onkey_resource,
  		.num_resources = 1,
  	},
  	{
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  		.of_compatible = "dlg,da9055-rtc",
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  		.name = "da9055-rtc",
  		.resources = da9055_rtc_resource,
  		.num_resources = ARRAY_SIZE(da9055_rtc_resource),
  	},
  	{
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  		.of_compatible = "dlg,da9055-hwmon",
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  		.name = "da9055-hwmon",
  		.resources = &da9055_hwmon_resource,
  		.num_resources = 1,
  	},
  	{
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  		.of_compatible = "dlg,da9055-watchdog",
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  		.name = "da9055-watchdog",
  	},
  };
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  static const struct regmap_irq_chip da9055_regmap_irq_chip = {
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  	.name = "da9055_irq",
  	.status_base = DA9055_REG_EVENT_A,
  	.mask_base = DA9055_REG_IRQ_MASK_A,
  	.ack_base = DA9055_REG_EVENT_A,
  	.num_regs = 3,
  	.irqs = da9055_irqs,
  	.num_irqs = ARRAY_SIZE(da9055_irqs),
  };
f791be492   Bill Pemberton   mfd: remove use o... 
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  int da9055_device_init(struct da9055 *da9055)
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  {
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  	struct da9055_pdata *pdata = dev_get_platdata(da9055->dev);
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  	int ret;
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  	uint8_t clear_events[3] = {0xFF, 0xFF, 0xFF};
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  	if (pdata && pdata->init != NULL)
  		pdata->init(da9055);
  
  	if (!pdata || !pdata->irq_base)
  		da9055->irq_base = -1;
  	else
  		da9055->irq_base = pdata->irq_base;
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  	ret = da9055_group_write(da9055, DA9055_REG_EVENT_A, 3, clear_events);
  	if (ret < 0)
  		return ret;
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  	ret = regmap_add_irq_chip(da9055->regmap, da9055->chip_irq,
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  				  IRQF_TRIGGER_LOW | IRQF_ONESHOT,
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  				  da9055->irq_base, &da9055_regmap_irq_chip,
  				  &da9055->irq_data);
  	if (ret < 0)
  		return ret;
  
  	da9055->irq_base = regmap_irq_chip_get_base(da9055->irq_data);
  
  	ret = mfd_add_devices(da9055->dev, -1,
  			      da9055_devs, ARRAY_SIZE(da9055_devs),
  			      NULL, da9055->irq_base, NULL);
  	if (ret)
  		goto err;
  
  	return 0;
  
  err:
  	mfd_remove_devices(da9055->dev);
  	return ret;
  }
4740f73fe   Bill Pemberton   mfd: remove use o... 
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  void da9055_device_exit(struct da9055 *da9055)
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  {
  	regmap_del_irq_chip(da9055->chip_irq, da9055->irq_data);
  	mfd_remove_devices(da9055->dev);
  }
  
  MODULE_DESCRIPTION("Core support for the DA9055 PMIC");
  MODULE_LICENSE("GPL");
  MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");