Commit b17fc86c authored by Mark Brown's avatar Mark Brown
Browse files

Merge branch 'topic/min' of... 

Merge branch 'topic/min' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator into regulator-change
parents d1e7de30 e1b0144f

drivers/regulator/Kconfig

+21 −0
Original line number Diff line number Diff line
@@ -109,6 +109,16 @@ config REGULATOR_DA9052 
	  This driver supports the voltage regulators of DA9052-BC and

	  DA9053-AA/Bx PMIC.



config REGULATOR_DA9055

	tristate "Dialog Semiconductor DA9055 regulators"

	depends on MFD_DA9055

	help

	  Say y here to support the BUCKs and LDOs regulators found on

	  Dialog Semiconductor DA9055 PMIC.



	  This driver can also be built as a module. If so, the module

	  will be called da9055-regulator.



config REGULATOR_FAN53555

	tristate "Fairchild FAN53555 Regulator"

	depends on I2C
@@ -335,6 +345,17 @@ config REGULATOR_PALMAS 
	  on the muxing. This is handled automatically in the driver by

	  reading the mux info from OTP.



config REGULATOR_TPS51632

	tristate "TI TPS51632 Power Regulator"

	depends on I2C

	select REGMAP_I2C

	help

	  This driver supports TPS51632 voltage regulator chip.

	  The TPS51632 is 3-2-1 Phase D-Cap+ Step Down Driverless Controller

	  with Serial VID control and DVFS.

	  The voltage output can be configure through I2C interface or PWM

	  interface.



config REGULATOR_TPS6105X

	tristate "TI TPS6105X Power regulators"

	depends on TPS6105X

drivers/regulator/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ obj-$(CONFIG_REGULATOR_ANATOP) += anatop-regulator.o 
obj-$(CONFIG_REGULATOR_ARIZONA) += arizona-micsupp.o arizona-ldo1.o

obj-$(CONFIG_REGULATOR_DA903X)	+= da903x.o

obj-$(CONFIG_REGULATOR_DA9052)	+= da9052-regulator.o

obj-$(CONFIG_REGULATOR_DA9055)	+= da9055-regulator.o

obj-$(CONFIG_REGULATOR_DBX500_PRCMU) += dbx500-prcmu.o

obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o

obj-$(CONFIG_REGULATOR_FAN53555) += fan53555.o
@@ -41,6 +42,7 @@ obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o 
obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o

obj-$(CONFIG_REGULATOR_MC13XXX_CORE) +=  mc13xxx-regulator-core.o

obj-$(CONFIG_REGULATOR_PALMAS) += palmas-regulator.o

obj-$(CONFIG_REGULATOR_TPS51632) += tps51632-regulator.o

obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o

obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o

obj-$(CONFIG_REGULATOR_RC5T583)  += rc5t583-regulator.o

drivers/regulator/anatop-regulator.c

+9 −19
Original line number Diff line number Diff line
@@ -48,36 +48,21 @@ static int anatop_regmap_set_voltage_sel(struct regulator_dev *reg, 
					unsigned selector)

{

	struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg);

	u32 val, mask;



	if (!anatop_reg->control_reg)

		return -ENOTSUPP;



	val = anatop_reg->min_bit_val + selector;

	dev_dbg(&reg->dev, "%s: calculated val %d\n", __func__, val);

	mask = ((1 << anatop_reg->vol_bit_width) - 1) <<

		anatop_reg->vol_bit_shift;

	val <<= anatop_reg->vol_bit_shift;

	regmap_update_bits(anatop_reg->anatop, anatop_reg->control_reg,

				mask, val);



	return 0;

	return regulator_set_voltage_sel_regmap(reg, selector);

}



static int anatop_regmap_get_voltage_sel(struct regulator_dev *reg)

{

	struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg);

	u32 val, mask;



	if (!anatop_reg->control_reg)

		return -ENOTSUPP;



	regmap_read(anatop_reg->anatop, anatop_reg->control_reg, &val);

	mask = ((1 << anatop_reg->vol_bit_width) - 1) <<

		anatop_reg->vol_bit_shift;

	val = (val & mask) >> anatop_reg->vol_bit_shift;



	return val - anatop_reg->min_bit_val;

	return regulator_get_voltage_sel_regmap(reg);

}



static struct regulator_ops anatop_rops = {
@@ -158,15 +143,20 @@ static int __devinit anatop_regulator_probe(struct platform_device *pdev) 
		goto anatop_probe_end;

	}



	rdesc->n_voltages = (sreg->max_voltage - sreg->min_voltage)

		/ 25000 + 1;

	rdesc->n_voltages = (sreg->max_voltage - sreg->min_voltage) / 25000 + 1

			    + sreg->min_bit_val;

	rdesc->min_uV = sreg->min_voltage;

	rdesc->uV_step = 25000;

	rdesc->linear_min_sel = sreg->min_bit_val;

	rdesc->vsel_reg = sreg->control_reg;

	rdesc->vsel_mask = ((1 << sreg->vol_bit_width) - 1) <<

			   sreg->vol_bit_shift;



	config.dev = &pdev->dev;

	config.init_data = initdata;

	config.driver_data = sreg;

	config.of_node = pdev->dev.of_node;

	config.regmap = sreg->anatop;



	/* register regulator */

	rdev = regulator_register(rdesc, &config);

drivers/regulator/core.c

+6 −0
Original line number Diff line number Diff line
@@ -1919,6 +1919,10 @@ int regulator_list_voltage_linear(struct regulator_dev *rdev, 
{

	if (selector >= rdev->desc->n_voltages)

		return -EINVAL;

	if (selector < rdev->desc->linear_min_sel)

		return 0;



	selector -= rdev->desc->linear_min_sel;



	return rdev->desc->min_uV + (rdev->desc->uV_step * selector);

}
@@ -2142,6 +2146,8 @@ int regulator_map_voltage_linear(struct regulator_dev *rdev, 
	if (ret < 0)

		return ret;



	ret += rdev->desc->linear_min_sel;



	/* Map back into a voltage to verify we're still in bounds */

	voltage = rdev->desc->ops->list_voltage(rdev, ret);

	if (voltage < min_uV || voltage > max_uV)

drivers/regulator/da9055-regulator.c

0 → 100644
+644 −0
Original line number Diff line number Diff line 
/*

* Regulator driver for DA9055 PMIC

*

* Copyright(c) 2012 Dialog Semiconductor Ltd.

*

* Author: David Dajun Chen <dchen@diasemi.com>

*

* 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.

*

*/



#include <linux/module.h>

#include <linux/init.h>

#include <linux/err.h>

#include <linux/gpio.h>

#include <linux/platform_device.h>

#include <linux/regulator/driver.h>

#include <linux/regulator/machine.h>



#include <linux/mfd/da9055/core.h>

#include <linux/mfd/da9055/reg.h>

#include <linux/mfd/da9055/pdata.h>



#define DA9055_MIN_UA		0

#define DA9055_MAX_UA		3



#define DA9055_LDO_MODE_SYNC	0

#define DA9055_LDO_MODE_SLEEP	1



#define DA9055_BUCK_MODE_SLEEP	1

#define DA9055_BUCK_MODE_SYNC	2

#define DA9055_BUCK_MODE_AUTO	3



/* DA9055 REGULATOR IDs */

#define DA9055_ID_BUCK1	0

#define DA9055_ID_BUCK2	1

#define DA9055_ID_LDO1		2

#define DA9055_ID_LDO2		3

#define DA9055_ID_LDO3		4

#define DA9055_ID_LDO4		5

#define DA9055_ID_LDO5		6

#define DA9055_ID_LDO6		7



/* DA9055 BUCK current limit */

static const int da9055_current_limits[] = { 500000, 600000, 700000, 800000 };



struct da9055_conf_reg {

	int reg;

	int sel_mask;

	int en_mask;

};



struct da9055_volt_reg {

	int reg_a;

	int reg_b;

	int sl_shift;

	int v_mask;

	int v_shift;

};



struct da9055_mode_reg {

	int reg;

	int mask;

	int shift;

};



struct da9055_regulator_info {

	struct regulator_desc reg_desc;

	struct da9055_conf_reg conf;

	struct da9055_volt_reg volt;

	struct da9055_mode_reg mode;

};



struct da9055_regulator {

	struct da9055 *da9055;

	struct da9055_regulator_info *info;

	struct regulator_dev *rdev;

	enum gpio_select reg_rselect;

};



static unsigned int da9055_buck_get_mode(struct regulator_dev *rdev)

{

	struct da9055_regulator *regulator = rdev_get_drvdata(rdev);

	struct da9055_regulator_info *info = regulator->info;

	int ret, mode = 0;



	ret = da9055_reg_read(regulator->da9055, info->mode.reg);

	if (ret < 0)

		return ret;



	switch ((ret & info->mode.mask) >> info->mode.shift) {

	case DA9055_BUCK_MODE_SYNC:

		mode = REGULATOR_MODE_FAST;

		break;

	case DA9055_BUCK_MODE_AUTO:

		mode = REGULATOR_MODE_NORMAL;

		break;

	case DA9055_BUCK_MODE_SLEEP:

		mode = REGULATOR_MODE_STANDBY;

		break;

	}



	return mode;

}



static int da9055_buck_set_mode(struct regulator_dev *rdev,

					unsigned int mode)

{

	struct da9055_regulator *regulator = rdev_get_drvdata(rdev);

	struct da9055_regulator_info *info = regulator->info;

	int val = 0;



	switch (mode) {

	case REGULATOR_MODE_FAST:

		val = DA9055_BUCK_MODE_SYNC << info->mode.shift;

		break;

	case REGULATOR_MODE_NORMAL:

		val = DA9055_BUCK_MODE_AUTO << info->mode.shift;

		break;

	case REGULATOR_MODE_STANDBY:

		val = DA9055_BUCK_MODE_SLEEP << info->mode.shift;

		break;

	}



	return da9055_reg_update(regulator->da9055, info->mode.reg,

				 info->mode.mask, val);

}



static unsigned int da9055_ldo_get_mode(struct regulator_dev *rdev)

{

	struct da9055_regulator *regulator = rdev_get_drvdata(rdev);

	struct da9055_regulator_info *info = regulator->info;

	int ret;



	ret = da9055_reg_read(regulator->da9055, info->volt.reg_b);

	if (ret < 0)

		return ret;



	if (ret >> info->volt.sl_shift)

		return REGULATOR_MODE_STANDBY;

	else

		return REGULATOR_MODE_NORMAL;

}



static int da9055_ldo_set_mode(struct regulator_dev *rdev, unsigned int mode)

{

	struct da9055_regulator *regulator = rdev_get_drvdata(rdev);

	struct da9055_regulator_info *info = regulator->info;

	struct da9055_volt_reg volt = info->volt;

	int val = 0;



	switch (mode) {

	case REGULATOR_MODE_NORMAL:

	case REGULATOR_MODE_FAST:

		val = DA9055_LDO_MODE_SYNC;

		break;

	case REGULATOR_MODE_STANDBY:

		val = DA9055_LDO_MODE_SLEEP;

		break;

	}



	return da9055_reg_update(regulator->da9055, volt.reg_b,

				 1 << volt.sl_shift,

				 val << volt.sl_shift);

}



static int da9055_buck_get_current_limit(struct regulator_dev *rdev)

{

	struct da9055_regulator *regulator = rdev_get_drvdata(rdev);

	struct da9055_regulator_info *info = regulator->info;

	int ret;



	ret = da9055_reg_read(regulator->da9055, DA9055_REG_BUCK_LIM);

	if (ret < 0)

		return ret;



	ret &= info->mode.mask;

	return da9055_current_limits[ret >> info->mode.shift];

}



static int da9055_buck_set_current_limit(struct regulator_dev *rdev, int min_uA,

					 int max_uA)

{

	struct da9055_regulator *regulator = rdev_get_drvdata(rdev);

	struct da9055_regulator_info *info = regulator->info;

	int i, val = 0;



	if (min_uA > da9055_current_limits[DA9055_MAX_UA] ||

	    max_uA < da9055_current_limits[DA9055_MIN_UA])

		return -EINVAL;



	for (i = 0; i < ARRAY_SIZE(da9055_current_limits); i++) {

		if (min_uA <= da9055_current_limits[i]) {

			val = i;

			break;

		}

	}



	return da9055_reg_update(regulator->da9055, DA9055_REG_BUCK_LIM,

				info->mode.mask, val << info->mode.shift);

}



static int da9055_regulator_get_voltage_sel(struct regulator_dev *rdev)

{

	struct da9055_regulator *regulator = rdev_get_drvdata(rdev);

	struct da9055_regulator_info *info = regulator->info;

	struct da9055_volt_reg volt = info->volt;

	int ret, sel;



	/*

	 * There are two voltage register set A & B for voltage ramping but

	 * either one of then can be active therefore we first determine

	 * the active register set.

	 */

	ret = da9055_reg_read(regulator->da9055, info->conf.reg);

	if (ret < 0)

		return ret;



	ret &= info->conf.sel_mask;



	/* Get the voltage for the active register set A/B */

	if (ret == DA9055_REGUALTOR_SET_A)

		ret = da9055_reg_read(regulator->da9055, volt.reg_a);

	else

		ret = da9055_reg_read(regulator->da9055, volt.reg_b);



	if (ret < 0)

		return ret;



	sel = (ret & volt.v_mask);

	return sel;

}



static int da9055_regulator_set_voltage_sel(struct regulator_dev *rdev,

					    unsigned int selector)

{

	struct da9055_regulator *regulator = rdev_get_drvdata(rdev);

	struct da9055_regulator_info *info = regulator->info;

	int ret;



	/*

	 * Regulator register set A/B is not selected through GPIO therefore

	 * we use default register set A for voltage ramping.

	 */

	if (regulator->reg_rselect == NO_GPIO) {

		/* Select register set A */

		ret = da9055_reg_update(regulator->da9055, info->conf.reg,

					info->conf.sel_mask, DA9055_SEL_REG_A);

		if (ret < 0)

			return ret;



		/* Set the voltage */

		return da9055_reg_update(regulator->da9055, info->volt.reg_a,

					 info->volt.v_mask, selector);

	}



	/*

	 * Here regulator register set A/B is selected through GPIO.

	 * Therefore we first determine the selected register set A/B and

	 * then set the desired voltage for that register set A/B.

	 */

	ret = da9055_reg_read(regulator->da9055, info->conf.reg);

	if (ret < 0)

		return ret;



	ret &= info->conf.sel_mask;



	/* Set the voltage */

	if (ret == DA9055_REGUALTOR_SET_A)

		return da9055_reg_update(regulator->da9055, info->volt.reg_a,

					 info->volt.v_mask, selector);

	else

		return da9055_reg_update(regulator->da9055, info->volt.reg_b,

					 info->volt.v_mask, selector);

}



static int da9055_regulator_set_suspend_voltage(struct regulator_dev *rdev,

						int uV)

{

	struct da9055_regulator *regulator = rdev_get_drvdata(rdev);

	struct da9055_regulator_info *info = regulator->info;

	int ret;



	/* Select register set B for suspend voltage ramping. */

	if (regulator->reg_rselect == NO_GPIO) {

		ret = da9055_reg_update(regulator->da9055, info->conf.reg,

					info->conf.sel_mask, DA9055_SEL_REG_B);

		if (ret < 0)

			return ret;

	}



	ret = regulator_map_voltage_linear(rdev, uV, uV);

	if (ret < 0)

		return ret;



	return da9055_reg_update(regulator->da9055, info->volt.reg_b,

				 info->volt.v_mask, ret);

}



static int da9055_suspend_enable(struct regulator_dev *rdev)

{

	struct da9055_regulator *regulator = rdev_get_drvdata(rdev);

	struct da9055_regulator_info *info = regulator->info;



	/* Select register set B for voltage ramping. */

	if (regulator->reg_rselect == NO_GPIO)

		return da9055_reg_update(regulator->da9055, info->conf.reg,

					info->conf.sel_mask, DA9055_SEL_REG_B);

	else

		return 0;

}



static int da9055_suspend_disable(struct regulator_dev *rdev)

{

	struct da9055_regulator *regulator = rdev_get_drvdata(rdev);

	struct da9055_regulator_info *info = regulator->info;



	/* Diselect register set B. */

	if (regulator->reg_rselect == NO_GPIO)

		return da9055_reg_update(regulator->da9055, info->conf.reg,

					info->conf.sel_mask, DA9055_SEL_REG_A);

	else

		return 0;

}



static struct regulator_ops da9055_buck_ops = {

	.get_mode = da9055_buck_get_mode,

	.set_mode = da9055_buck_set_mode,



	.get_current_limit = da9055_buck_get_current_limit,

	.set_current_limit = da9055_buck_set_current_limit,



	.get_voltage_sel = da9055_regulator_get_voltage_sel,

	.set_voltage_sel = da9055_regulator_set_voltage_sel,

	.list_voltage = regulator_list_voltage_linear,

	.map_voltage = regulator_map_voltage_linear,

	.is_enabled = regulator_is_enabled_regmap,

	.enable = regulator_enable_regmap,

	.disable = regulator_disable_regmap,



	.set_suspend_voltage = da9055_regulator_set_suspend_voltage,

	.set_suspend_enable = da9055_suspend_enable,

	.set_suspend_disable = da9055_suspend_disable,

	.set_suspend_mode = da9055_buck_set_mode,

};



static struct regulator_ops da9055_ldo_ops = {

	.get_mode = da9055_ldo_get_mode,

	.set_mode = da9055_ldo_set_mode,



	.get_voltage_sel = da9055_regulator_get_voltage_sel,

	.set_voltage_sel = da9055_regulator_set_voltage_sel,

	.list_voltage = regulator_list_voltage_linear,

	.map_voltage = regulator_map_voltage_linear,

	.is_enabled = regulator_is_enabled_regmap,

	.enable = regulator_enable_regmap,

	.disable = regulator_disable_regmap,



	.set_suspend_voltage = da9055_regulator_set_suspend_voltage,

	.set_suspend_enable = da9055_suspend_enable,

	.set_suspend_disable = da9055_suspend_disable,

	.set_suspend_mode = da9055_ldo_set_mode,



};



#define DA9055_LDO(_id, step, min, max, vbits, voffset) \

{\

	.reg_desc = {\

		.name = #_id,\

		.ops = &da9055_ldo_ops,\

		.type = REGULATOR_VOLTAGE,\

		.id = DA9055_ID_##_id,\

		.n_voltages = (max - min) / step + 1 + (voffset), \

		.enable_reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \

		.enable_mask = 1, \

		.min_uV = (min) * 1000,\

		.uV_step = (step) * 1000,\

		.linear_min_sel = (voffset),\

		.owner = THIS_MODULE,\

	},\

	.conf = {\

		.reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \

		.sel_mask = (1 << 4),\

		.en_mask = 1,\

	},\

	.volt = {\

		.reg_a = DA9055_REG_VBCORE_A + DA9055_ID_##_id, \

		.reg_b = DA9055_REG_VBCORE_B + DA9055_ID_##_id, \

		.sl_shift = 7,\

		.v_mask = (1 << (vbits)) - 1,\

		.v_shift = (vbits),\

	},\

}



#define DA9055_BUCK(_id, step, min, max, vbits, voffset, mbits, sbits) \

{\

	.reg_desc = {\

		.name = #_id,\

		.ops = &da9055_buck_ops,\

		.type = REGULATOR_VOLTAGE,\

		.id = DA9055_ID_##_id,\

		.n_voltages = (max - min) / step + 1 + (voffset), \

		.enable_reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \

		.enable_mask = 1,\

		.min_uV = (min) * 1000,\

		.uV_step = (step) * 1000,\

		.linear_min_sel = (voffset),\

		.owner = THIS_MODULE,\

	},\

	.conf = {\

		.reg = DA9055_REG_BCORE_CONT + DA9055_ID_##_id, \

		.sel_mask = (1 << 4),\

		.en_mask = 1,\

	},\

	.volt = {\

		.reg_a = DA9055_REG_VBCORE_A + DA9055_ID_##_id, \

		.reg_b = DA9055_REG_VBCORE_B + DA9055_ID_##_id, \

		.sl_shift = 7,\

		.v_mask = (1 << (vbits)) - 1,\

		.v_shift = (vbits),\

	},\

	.mode = {\

		.reg = DA9055_REG_BCORE_MODE,\

		.mask = (mbits),\

		.shift = (sbits),\

	},\

}



static struct da9055_regulator_info da9055_regulator_info[] = {

	DA9055_BUCK(BUCK1, 25, 725, 2075, 6, 9, 0xc, 2),

	DA9055_BUCK(BUCK2, 25, 925, 2500, 6, 0, 3, 0),

	DA9055_LDO(LDO1, 50, 900, 3300, 6, 2),

	DA9055_LDO(LDO2, 50, 900, 3300, 6, 3),

	DA9055_LDO(LDO3, 50, 900, 3300, 6, 2),

	DA9055_LDO(LDO4, 50, 900, 3300, 6, 2),

	DA9055_LDO(LDO5, 50, 900, 2750, 6, 2),

	DA9055_LDO(LDO6, 20, 900, 3300, 7, 0),

};



/*

 * Configures regulator to be controlled either through GPIO 1 or 2.

 * GPIO can control regulator state and/or select the regulator register

 * set A/B for voltage ramping.

 */

static __devinit int da9055_gpio_init(struct da9055_regulator *regulator,

				      struct regulator_config *config,

				      struct da9055_pdata *pdata, int id)

{

	struct da9055_regulator_info *info = regulator->info;

	int ret = 0;



	if (pdata->gpio_ren && pdata->gpio_ren[id]) {

		char name[18];

		int gpio_mux = pdata->gpio_ren[id];



		config->ena_gpio = pdata->ena_gpio[id];

		config->ena_gpio_flags = GPIOF_OUT_INIT_HIGH;

		config->ena_gpio_invert = 1;



		/*

		 * GPI pin is muxed with regulator to control the

		 * regulator state.

		 */

		sprintf(name, "DA9055 GPI %d", gpio_mux);

		ret = devm_gpio_request_one(config->dev, gpio_mux, GPIOF_DIR_IN,

					    name);

		if (ret < 0)

			goto err;



		/*

		 * Let the regulator know that its state is controlled

		 * through GPI.

		 */

		ret = da9055_reg_update(regulator->da9055, info->conf.reg,

					DA9055_E_GPI_MASK,

					pdata->reg_ren[id]

					<< DA9055_E_GPI_SHIFT);

		if (ret < 0)

			goto err;

	}



	if (pdata->gpio_rsel && pdata->gpio_rsel[id]) {

		char name[18];

		int gpio_mux = pdata->gpio_rsel[id];



		regulator->reg_rselect = pdata->reg_rsel[id];



		/*

		 * GPI pin is muxed with regulator to select the

		 * regulator register set A/B for voltage ramping.

		 */

		sprintf(name, "DA9055 GPI %d", gpio_mux);

		ret = devm_gpio_request_one(config->dev, gpio_mux, GPIOF_DIR_IN,

					    name);

		if (ret < 0)

			goto err;



		/*

		 * Let the regulator know that its register set A/B

		 * will be selected through GPI for voltage ramping.

		 */

		ret = da9055_reg_update(regulator->da9055, info->conf.reg,

					DA9055_V_GPI_MASK,

					pdata->reg_rsel[id]

					<< DA9055_V_GPI_SHIFT);

	}



err:

	return ret;

}



static irqreturn_t da9055_ldo5_6_oc_irq(int irq, void *data)

{

	struct da9055_regulator *regulator = data;



	regulator_notifier_call_chain(regulator->rdev,

				      REGULATOR_EVENT_OVER_CURRENT, NULL);



	return IRQ_HANDLED;

}



static inline struct da9055_regulator_info *find_regulator_info(int id)

{

	struct da9055_regulator_info *info;

	int i;



	for (i = 0; i < ARRAY_SIZE(da9055_regulator_info); i++) {

		info = &da9055_regulator_info[i];

		if (info->reg_desc.id == id)

			return info;

	}



	return NULL;

}



static int __devinit da9055_regulator_probe(struct platform_device *pdev)

{

	struct regulator_config config = { };

	struct da9055_regulator *regulator;

	struct da9055 *da9055 = dev_get_drvdata(pdev->dev.parent);

	struct da9055_pdata *pdata = da9055->dev->platform_data;

	int ret, irq;



	if (pdata == NULL || pdata->regulators[pdev->id] == NULL)

		return -ENODEV;



	regulator = devm_kzalloc(&pdev->dev, sizeof(struct da9055_regulator),

				 GFP_KERNEL);

	if (!regulator)

		return -ENOMEM;



	regulator->info = find_regulator_info(pdev->id);

	if (regulator->info == NULL) {

		dev_err(&pdev->dev, "invalid regulator ID specified\n");

		return -EINVAL;

	}



	regulator->da9055 = da9055;

	config.dev = &pdev->dev;

	config.driver_data = regulator;

	config.regmap = da9055->regmap;



	if (pdata && pdata->regulators)

		config.init_data = pdata->regulators[pdev->id];



	ret = da9055_gpio_init(regulator, &config, pdata, pdev->id);

	if (ret < 0)

		return ret;



	regulator->rdev = regulator_register(&regulator->info->reg_desc,

					     &config);

	if (IS_ERR(regulator->rdev)) {

		dev_err(&pdev->dev, "Failed to register regulator %s\n",

			regulator->info->reg_desc.name);

		ret = PTR_ERR(regulator->rdev);

		return ret;

	}



	/* Only LDO 5 and 6 has got the over current interrupt */

	if (pdev->id == DA9055_ID_LDO5 || pdev->id ==  DA9055_ID_LDO6) {

		irq = platform_get_irq_byname(pdev, "REGULATOR");

		irq = regmap_irq_get_virq(da9055->irq_data, irq);

		ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,

						da9055_ldo5_6_oc_irq,

						IRQF_TRIGGER_HIGH |

						IRQF_ONESHOT |

						IRQF_PROBE_SHARED,

						pdev->name, regulator);

		if (ret != 0) {

			if (ret != -EBUSY) {

				dev_err(&pdev->dev,

				"Failed to request Regulator IRQ %d: %d\n",

				irq, ret);

				goto err_regulator;

			}

		}

	}



	platform_set_drvdata(pdev, regulator);



	return 0;



err_regulator:

	regulator_unregister(regulator->rdev);

	return ret;

}



static int __devexit da9055_regulator_remove(struct platform_device *pdev)

{

	struct da9055_regulator *regulator = platform_get_drvdata(pdev);



	regulator_unregister(regulator->rdev);



	return 0;

}



static struct platform_driver da9055_regulator_driver = {

	.probe = da9055_regulator_probe,

	.remove = __devexit_p(da9055_regulator_remove),

	.driver = {

		.name = "da9055-regulator",

		.owner = THIS_MODULE,

	},

};



static int __init da9055_regulator_init(void)

{

	return platform_driver_register(&da9055_regulator_driver);

}

subsys_initcall(da9055_regulator_init);



static void __exit da9055_regulator_exit(void)

{

	platform_driver_unregister(&da9055_regulator_driver);

}

module_exit(da9055_regulator_exit);



MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");

MODULE_DESCRIPTION("Power Regulator driver for Dialog DA9055 PMIC");

MODULE_LICENSE("GPL");

MODULE_ALIAS("platform:da9055-regulator");