drivers/mfd/da9055-core.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Device access for Dialog DA9055 PMICs.
  *
  * Copyright(c) 2012 Dialog Semiconductor Ltd.
  *
  * Author: David Dajun Chen <dchen@diasemi.com>
  */

 #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;
 	}
 }

 static const struct regmap_irq da9055_irqs[] = {
 	[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,
 	},
 };

 const struct regmap_config da9055_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,

 	.cache_type = REGCACHE_MAPLE,

 	.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 const struct resource da9055_onkey_resource =
 	DEFINE_RES_IRQ_NAMED(DA9055_IRQ_NONKEY, "ONKEY");

 static const struct resource da9055_rtc_resource[] = {
 	DEFINE_RES_IRQ_NAMED(DA9055_IRQ_ALARM, "ALM"),
 	DEFINE_RES_IRQ_NAMED(DA9055_IRQ_TICK, "TICK"),
 };

 static const struct resource da9055_hwmon_resource =
 	DEFINE_RES_IRQ_NAMED(DA9055_IRQ_HWMON, "HWMON");

 static const struct resource da9055_ld05_6_resource =
 	DEFINE_RES_IRQ_NAMED(DA9055_IRQ_REGULATOR, "REGULATOR");

 static const struct mfd_cell da9055_devs[] = {
 	{
 		.of_compatible = "dlg,da9055-gpio",
 		.name = "da9055-gpio",
 	},
 	{
 		.of_compatible = "dlg,da9055-regulator",
 		.name = "da9055-regulator",
 		.id = 1,
 	},
 	{
 		.of_compatible = "dlg,da9055-regulator",
 		.name = "da9055-regulator",
 		.id = 2,
 	},
 	{
 		.of_compatible = "dlg,da9055-regulator",
 		.name = "da9055-regulator",
 		.id = 3,
 	},
 	{
 		.of_compatible = "dlg,da9055-regulator",
 		.name = "da9055-regulator",
 		.id = 4,
 	},
 	{
 		.of_compatible = "dlg,da9055-regulator",
 		.name = "da9055-regulator",
 		.id = 5,
 	},
 	{
 		.of_compatible = "dlg,da9055-regulator",
 		.name = "da9055-regulator",
 		.id = 6,
 	},
 	{
 		.of_compatible = "dlg,da9055-regulator",
 		.name = "da9055-regulator",
 		.id = 7,
 		.resources = &da9055_ld05_6_resource,
 		.num_resources = 1,
 	},
 	{
 		.of_compatible = "dlg,da9055-regulator",
 		.name = "da9055-regulator",
 		.resources = &da9055_ld05_6_resource,
 		.num_resources = 1,
 		.id = 8,
 	},
 	{
 		.of_compatible = "dlg,da9055-onkey",
 		.name = "da9055-onkey",
 		.resources = &da9055_onkey_resource,
 		.num_resources = 1,
 	},
 	{
 		.of_compatible = "dlg,da9055-rtc",
 		.name = "da9055-rtc",
 		.resources = da9055_rtc_resource,
 		.num_resources = ARRAY_SIZE(da9055_rtc_resource),
 	},
 	{
 		.of_compatible = "dlg,da9055-hwmon",
 		.name = "da9055-hwmon",
 		.resources = &da9055_hwmon_resource,
 		.num_resources = 1,
 	},
 	{
 		.of_compatible = "dlg,da9055-watchdog",
 		.name = "da9055-watchdog",
 	},
 };

 static const struct regmap_irq_chip da9055_regmap_irq_chip = {
 	.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),
 };

 int da9055_device_init(struct da9055 *da9055)
 {
 	struct da9055_pdata *pdata = dev_get_platdata(da9055->dev);
 	int ret;
 	uint8_t clear_events[3] = {0xFF, 0xFF, 0xFF};

 	if (pdata && pdata->init != NULL)
 		pdata->init(da9055);

 	if (!pdata || !pdata->irq_base)
 		da9055->irq_base = -1;
 	else
 		da9055->irq_base = pdata->irq_base;

 	ret = da9055_group_write(da9055, DA9055_REG_EVENT_A, 3, clear_events);
 	if (ret < 0)
 		return ret;

 	ret = regmap_add_irq_chip(da9055->regmap, da9055->chip_irq,
 				  IRQF_TRIGGER_LOW | IRQF_ONESHOT,
 				  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;
 }

 void da9055_device_exit(struct da9055 *da9055)
 {
 	regmap_del_irq_chip(da9055->chip_irq, da9055->irq_data);
 	mfd_remove_devices(da9055->dev);
 }

 MODULE_DESCRIPTION("Core support for the DA9055 PMIC");
 MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
	// SPDX-License-Identifier: GPL-2.0-or-later
	/*
	* Device access for Dialog DA9055 PMICs.
	*
	* Copyright(c) 2012 Dialog Semiconductor Ltd.
	*
	* Author: David Dajun Chen <dchen@diasemi.com>
	*/

	#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;
	}
	}

	static const struct regmap_irq da9055_irqs[] = {
	[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,
	},
	};

	const struct regmap_config da9055_regmap_config = {
	.reg_bits = 8,
	.val_bits = 8,

	.cache_type = REGCACHE_MAPLE,

	.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 const struct resource da9055_onkey_resource =
	DEFINE_RES_IRQ_NAMED(DA9055_IRQ_NONKEY, "ONKEY");

	static const struct resource da9055_rtc_resource[] = {
	DEFINE_RES_IRQ_NAMED(DA9055_IRQ_ALARM, "ALM"),
	DEFINE_RES_IRQ_NAMED(DA9055_IRQ_TICK, "TICK"),
	};

	static const struct resource da9055_hwmon_resource =
	DEFINE_RES_IRQ_NAMED(DA9055_IRQ_HWMON, "HWMON");

	static const struct resource da9055_ld05_6_resource =
	DEFINE_RES_IRQ_NAMED(DA9055_IRQ_REGULATOR, "REGULATOR");

	static const struct mfd_cell da9055_devs[] = {
	{
	.of_compatible = "dlg,da9055-gpio",
	.name = "da9055-gpio",
	},
	{
	.of_compatible = "dlg,da9055-regulator",
	.name = "da9055-regulator",
	.id = 1,
	},
	{
	.of_compatible = "dlg,da9055-regulator",
	.name = "da9055-regulator",
	.id = 2,
	},
	{
	.of_compatible = "dlg,da9055-regulator",
	.name = "da9055-regulator",
	.id = 3,
	},
	{
	.of_compatible = "dlg,da9055-regulator",
	.name = "da9055-regulator",
	.id = 4,
	},
	{
	.of_compatible = "dlg,da9055-regulator",
	.name = "da9055-regulator",
	.id = 5,
	},
	{
	.of_compatible = "dlg,da9055-regulator",
	.name = "da9055-regulator",
	.id = 6,
	},
	{
	.of_compatible = "dlg,da9055-regulator",
	.name = "da9055-regulator",
	.id = 7,
	.resources = &da9055_ld05_6_resource,
	.num_resources = 1,
	},
	{
	.of_compatible = "dlg,da9055-regulator",
	.name = "da9055-regulator",
	.resources = &da9055_ld05_6_resource,
	.num_resources = 1,
	.id = 8,
	},
	{
	.of_compatible = "dlg,da9055-onkey",
	.name = "da9055-onkey",
	.resources = &da9055_onkey_resource,
	.num_resources = 1,
	},
	{
	.of_compatible = "dlg,da9055-rtc",
	.name = "da9055-rtc",
	.resources = da9055_rtc_resource,
	.num_resources = ARRAY_SIZE(da9055_rtc_resource),
	},
	{
	.of_compatible = "dlg,da9055-hwmon",
	.name = "da9055-hwmon",
	.resources = &da9055_hwmon_resource,
	.num_resources = 1,
	},
	{
	.of_compatible = "dlg,da9055-watchdog",
	.name = "da9055-watchdog",
	},
	};

	static const struct regmap_irq_chip da9055_regmap_irq_chip = {
	.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),
	};

	int da9055_device_init(struct da9055 *da9055)
	{
	struct da9055_pdata *pdata = dev_get_platdata(da9055->dev);
	int ret;
	uint8_t clear_events[3] = {0xFF, 0xFF, 0xFF};

	if (pdata && pdata->init != NULL)
	pdata->init(da9055);

	if (!pdata \|\| !pdata->irq_base)
	da9055->irq_base = -1;
	else
	da9055->irq_base = pdata->irq_base;

	ret = da9055_group_write(da9055, DA9055_REG_EVENT_A, 3, clear_events);
	if (ret < 0)
	return ret;

	ret = regmap_add_irq_chip(da9055->regmap, da9055->chip_irq,
	IRQF_TRIGGER_LOW \| IRQF_ONESHOT,
	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;
	}

	void da9055_device_exit(struct da9055 *da9055)
	{
	regmap_del_irq_chip(da9055->chip_irq, da9055->irq_data);
	mfd_remove_devices(da9055->dev);
	}

	MODULE_DESCRIPTION("Core support for the DA9055 PMIC");
	MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");