[mirror_ubuntu-bionic-kernel.git] / drivers / regulator / tps65217-regulator.c

/*
 * tps65217-regulator.c
 *
 * Regulator driver for TPS65217 PMIC
 *
 * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.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 version 2.
 *
 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
 * kind, whether express or implied; without even the implied warranty
 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/platform_device.h>

#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/mfd/tps65217.h>

#define TPS65217_REGULATOR(_name, _id, _ops, _n)	\
	{						\
		.name		= _name,		\
		.id		= _id,			\
		.ops		= &_ops,		\
		.n_voltages	= _n,			\
		.type		= REGULATOR_VOLTAGE,	\
		.owner		= THIS_MODULE,		\
	}						\

#define TPS65217_INFO(_nm, _min, _max, _f1, _f2, _t, _n, _em, _vr, _vm)	\
	{						\
		.name		= _nm,			\
		.min_uV		= _min,			\
		.max_uV		= _max,			\
		.vsel_to_uv	= _f1,			\
		.uv_to_vsel	= _f2,			\
		.table		= _t,			\
		.table_len	= _n,			\
		.enable_mask	= _em,			\
		.set_vout_reg	= _vr,			\
		.set_vout_mask	= _vm,			\
	}

static const int LDO1_VSEL_table[] = {
	1000000, 1100000, 1200000, 1250000,
	1300000, 1350000, 1400000, 1500000,
	1600000, 1800000, 2500000, 2750000,
	2800000, 3000000, 3100000, 3300000,
};

static int tps65217_vsel_to_uv1(unsigned int vsel)
{
	int uV = 0;

	if (vsel > 63)
		return -EINVAL;

	if (vsel <= 24)
		uV = vsel * 25000 + 900000;
	else if (vsel <= 52)
		uV = (vsel - 24) * 50000 + 1500000;
	else if (vsel < 56)
		uV = (vsel - 52) * 100000 + 2900000;
	else
		uV = 3300000;

	return uV;
}

static int tps65217_uv_to_vsel1(int uV, unsigned int *vsel)
{
	if ((uV < 0) && (uV > 3300000))
		return -EINVAL;

	if (uV <= 1500000)
		*vsel = (uV - 875001) / 25000;
	else if (uV <= 2900000)
		*vsel = 24 + (uV - 1450001) / 50000;
	else if (uV < 3300000)
		*vsel = 52 + (uV - 2800001) / 100000;
	else
		*vsel = 56;

	return 0;
}

static int tps65217_vsel_to_uv2(unsigned int vsel)
{
	int uV = 0;

	if (vsel > 31)
		return -EINVAL;

	if (vsel <= 8)
		uV = vsel * 50000 + 1500000;
	else if (vsel <= 13)
		uV = (vsel - 8) * 100000 + 1900000;
	else
		uV = (vsel - 13) * 50000 + 2400000;

	return uV;
}

static int tps65217_uv_to_vsel2(int uV, unsigned int *vsel)
{
	if ((uV < 0) && (uV > 3300000))
		return -EINVAL;

	if (uV <= 1900000)
		*vsel = (uV - 1450001) / 50000;
	else if (uV <= 2400000)
		*vsel = 8 + (uV - 1800001) / 100000;
	else
		*vsel = 13 + (uV - 2350001) / 50000;

	return 0;
}

static struct tps_info tps65217_pmic_regs[] = {
	TPS65217_INFO("DCDC1", 900000, 1800000, tps65217_vsel_to_uv1,
			tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC1_EN,
			TPS65217_REG_DEFDCDC1, TPS65217_DEFDCDCX_DCDC_MASK),
	TPS65217_INFO("DCDC2", 900000, 3300000, tps65217_vsel_to_uv1,
			tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC2_EN,
			TPS65217_REG_DEFDCDC2, TPS65217_DEFDCDCX_DCDC_MASK),
	TPS65217_INFO("DCDC3", 900000, 1500000, tps65217_vsel_to_uv1,
			tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC3_EN,
			TPS65217_REG_DEFDCDC3, TPS65217_DEFDCDCX_DCDC_MASK),
	TPS65217_INFO("LDO1", 1000000, 3300000, NULL, NULL, LDO1_VSEL_table,
			16, TPS65217_ENABLE_LDO1_EN, TPS65217_REG_DEFLDO1,
			TPS65217_DEFLDO1_LDO1_MASK),
	TPS65217_INFO("LDO2", 900000, 3300000, tps65217_vsel_to_uv1,
			tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_LDO2_EN,
			TPS65217_REG_DEFLDO2, TPS65217_DEFLDO2_LDO2_MASK),
	TPS65217_INFO("LDO3", 1800000, 3300000, tps65217_vsel_to_uv2,
			tps65217_uv_to_vsel2, NULL, 32,
			TPS65217_ENABLE_LS1_EN | TPS65217_DEFLDO3_LDO3_EN,
			TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK),
	TPS65217_INFO("LDO4", 1800000, 3300000, tps65217_vsel_to_uv2,
			tps65217_uv_to_vsel2, NULL, 32,
			TPS65217_ENABLE_LS2_EN | TPS65217_DEFLDO4_LDO4_EN,
			TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK),
};

static int tps65217_pmic_dcdc_is_enabled(struct regulator_dev *dev)
{
	int ret;
	struct tps65217 *tps = rdev_get_drvdata(dev);
	unsigned int data, dcdc = rdev_get_id(dev);

	if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
		return -EINVAL;

	ret = tps65217_reg_read(tps, TPS65217_REG_ENABLE, &data);
	if (ret)
		return ret;

	return (data & tps->info[dcdc]->enable_mask) ? 1 : 0;
}

static int tps65217_pmic_ldo_is_enabled(struct regulator_dev *dev)
{
	int ret;
	struct tps65217 *tps = rdev_get_drvdata(dev);
	unsigned int data, ldo = rdev_get_id(dev);

	if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
		return -EINVAL;

	ret = tps65217_reg_read(tps, TPS65217_REG_ENABLE, &data);
	if (ret)
		return ret;

	return (data & tps->info[ldo]->enable_mask) ? 1 : 0;
}

static int tps65217_pmic_dcdc_enable(struct regulator_dev *dev)
{
	struct tps65217 *tps = rdev_get_drvdata(dev);
	unsigned int dcdc = rdev_get_id(dev);

	if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
		return -EINVAL;

	/* Enable the regulator and password protection is level 1 */
	return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
				tps->info[dcdc]->enable_mask,
				tps->info[dcdc]->enable_mask,
				TPS65217_PROTECT_L1);
}

static int tps65217_pmic_dcdc_disable(struct regulator_dev *dev)
{
	struct tps65217 *tps = rdev_get_drvdata(dev);
	unsigned int dcdc = rdev_get_id(dev);

	if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
		return -EINVAL;

	/* Disable the regulator and password protection is level 1 */
	return tps65217_clear_bits(tps, TPS65217_REG_ENABLE,
			tps->info[dcdc]->enable_mask, TPS65217_PROTECT_L1);
}

static int tps65217_pmic_ldo_enable(struct regulator_dev *dev)
{
	struct tps65217 *tps = rdev_get_drvdata(dev);
	unsigned int ldo = rdev_get_id(dev);

	if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
		return -EINVAL;

	/* Enable the regulator and password protection is level 1 */
	return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
				tps->info[ldo]->enable_mask,
				tps->info[ldo]->enable_mask,
				TPS65217_PROTECT_L1);
}

static int tps65217_pmic_ldo_disable(struct regulator_dev *dev)
{
	struct tps65217 *tps = rdev_get_drvdata(dev);
	unsigned int ldo = rdev_get_id(dev);

	if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
		return -EINVAL;

	/* Disable the regulator and password protection is level 1 */
	return tps65217_clear_bits(tps, TPS65217_REG_ENABLE,
			tps->info[ldo]->enable_mask, TPS65217_PROTECT_L1);
}

static int tps65217_pmic_dcdc_get_voltage_sel(struct regulator_dev *dev)
{
	int ret;
	struct tps65217 *tps = rdev_get_drvdata(dev);
	unsigned int selector, dcdc = rdev_get_id(dev);

	if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
		return -EINVAL;

	ret = tps65217_reg_read(tps, tps->info[dcdc]->set_vout_reg, &selector);
	if (ret)
		return ret;

	selector &= tps->info[dcdc]->set_vout_mask;

	return selector;
}

static int tps65217_pmic_dcdc_set_voltage(struct regulator_dev *dev,
				  int min_uV, int max_uV, unsigned *selector)
{
	int ret;
	struct tps65217 *tps = rdev_get_drvdata(dev);
	unsigned int dcdc = rdev_get_id(dev);

	if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
		return -EINVAL;

	if (min_uV < tps->info[dcdc]->min_uV
		|| min_uV > tps->info[dcdc]->max_uV)
		return -EINVAL;

	if (max_uV < tps->info[dcdc]->min_uV
		|| max_uV > tps->info[dcdc]->max_uV)
		return -EINVAL;

	ret = tps->info[dcdc]->uv_to_vsel(min_uV, selector);
	if (ret)
		return ret;

	/* Set the voltage based on vsel value and write protect level is 2 */
	ret = tps65217_set_bits(tps, tps->info[dcdc]->set_vout_reg,
					tps->info[dcdc]->set_vout_mask,
					*selector, TPS65217_PROTECT_L2);
	if (ret)
		return ret;

	/* Set GO bit to initiate voltage transistion */
	return tps65217_set_bits(tps, TPS65217_REG_DEFSLEW,
				TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO,
				TPS65217_PROTECT_L2);
}

static int tps65217_pmic_ldo_get_voltage_sel(struct regulator_dev *dev)
{
	int ret;
	struct tps65217 *tps = rdev_get_drvdata(dev);
	unsigned int selector, ldo = rdev_get_id(dev);

	if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
		return -EINVAL;

	ret = tps65217_reg_read(tps, tps->info[ldo]->set_vout_reg, &selector);
	if (ret)
		return ret;

	selector &= tps->info[ldo]->set_vout_mask;

	return selector;
}

static int tps65217_pmic_ldo_set_voltage_sel(struct regulator_dev *dev,
						unsigned selector)
{
	struct tps65217 *tps = rdev_get_drvdata(dev);
	int ldo = rdev_get_id(dev);

	if (ldo != TPS65217_LDO_1)
		return -EINVAL;

	if (selector >= tps->info[ldo]->table_len)
		return -EINVAL;

	/* Set the voltage based on vsel value and write protect level is 2 */
	return tps65217_set_bits(tps, tps->info[ldo]->set_vout_reg,
					tps->info[ldo]->set_vout_mask,
					selector, TPS65217_PROTECT_L2);
}

static int tps65217_pmic_ldo_set_voltage(struct regulator_dev *dev,
				  int min_uV, int max_uV, unsigned *selector)
{
	int ret;
	struct tps65217 *tps = rdev_get_drvdata(dev);
	unsigned int ldo = rdev_get_id(dev);

	if (ldo < TPS65217_LDO_2 || ldo > TPS65217_LDO_4)
		return -EINVAL;

	if (min_uV < tps->info[ldo]->min_uV
		|| min_uV > tps->info[ldo]->max_uV)
		return -EINVAL;

	if (max_uV < tps->info[ldo]->min_uV
		|| max_uV > tps->info[ldo]->max_uV)
		return -EINVAL;

	ret = tps->info[ldo]->uv_to_vsel(min_uV, selector);
	if (ret)
		return ret;

	/* Set the voltage based on vsel value and write protect level is 2 */
	return tps65217_set_bits(tps, tps->info[ldo]->set_vout_reg,
					tps->info[ldo]->set_vout_mask,
					*selector, TPS65217_PROTECT_L2);
}

static int tps65217_pmic_dcdc_list_voltage(struct regulator_dev *dev,
					unsigned selector)
{
	struct tps65217 *tps = rdev_get_drvdata(dev);
	unsigned int dcdc = rdev_get_id(dev);

	if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
		return -EINVAL;

	if (selector >= tps->info[dcdc]->table_len)
		return -EINVAL;

	return tps->info[dcdc]->vsel_to_uv(selector);
}

static int tps65217_pmic_ldo_list_voltage(struct regulator_dev *dev,
					unsigned selector)
{
	struct tps65217 *tps = rdev_get_drvdata(dev);
	unsigned int ldo = rdev_get_id(dev);

	if (ldo < TPS65217_LDO_1 || ldo > TPS65217_LDO_4)
		return -EINVAL;

	if (selector >= tps->info[ldo]->table_len)
		return -EINVAL;

	if (tps->info[ldo]->table)
		return tps->info[ldo]->table[selector];

	return tps->info[ldo]->vsel_to_uv(selector);
}

/* Operations permitted on DCDCx */
static struct regulator_ops tps65217_pmic_dcdc_ops = {
	.is_enabled		= tps65217_pmic_dcdc_is_enabled,
	.enable			= tps65217_pmic_dcdc_enable,
	.disable		= tps65217_pmic_dcdc_disable,
	.get_voltage_sel	= tps65217_pmic_dcdc_get_voltage_sel,
	.set_voltage		= tps65217_pmic_dcdc_set_voltage,
	.list_voltage		= tps65217_pmic_dcdc_list_voltage,
};

/* Operations permitted on LDO1 */
static struct regulator_ops tps65217_pmic_ldo1_ops = {
	.is_enabled		= tps65217_pmic_ldo_is_enabled,
	.enable			= tps65217_pmic_ldo_enable,
	.disable		= tps65217_pmic_ldo_disable,
	.get_voltage_sel	= tps65217_pmic_ldo_get_voltage_sel,
	.set_voltage_sel	= tps65217_pmic_ldo_set_voltage_sel,
	.list_voltage		= tps65217_pmic_ldo_list_voltage,
};

/* Operations permitted on LDO2, LDO3 and LDO4 */
static struct regulator_ops tps65217_pmic_ldo234_ops = {
	.is_enabled		= tps65217_pmic_ldo_is_enabled,
	.enable			= tps65217_pmic_ldo_enable,
	.disable		= tps65217_pmic_ldo_disable,
	.get_voltage_sel	= tps65217_pmic_ldo_get_voltage_sel,
	.set_voltage		= tps65217_pmic_ldo_set_voltage,
	.list_voltage		= tps65217_pmic_ldo_list_voltage,
};

static struct regulator_desc regulators[] = {
	TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1,
				tps65217_pmic_dcdc_ops, 64),
	TPS65217_REGULATOR("DCDC2",TPS65217_DCDC_2,
				tps65217_pmic_dcdc_ops, 64),
	TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3,
				tps65217_pmic_dcdc_ops, 64),
	TPS65217_REGULATOR("LDO1", TPS65217_LDO_1,
				tps65217_pmic_ldo1_ops, 16),
	TPS65217_REGULATOR("LDO2", TPS65217_LDO_2,
				tps65217_pmic_ldo234_ops, 64),
	TPS65217_REGULATOR("LDO3", TPS65217_LDO_3,
				tps65217_pmic_ldo234_ops, 32),
	TPS65217_REGULATOR("LDO4", TPS65217_LDO_4,
				tps65217_pmic_ldo234_ops, 32),
};

static int __devinit tps65217_regulator_probe(struct platform_device *pdev)
{
	struct regulator_dev *rdev;
	struct tps65217 *tps;
	struct tps_info *info = &tps65217_pmic_regs[pdev->id];

	/* Already set by core driver */
	tps = dev_to_tps65217(pdev->dev.parent);
	tps->info[pdev->id] = info;

	rdev = regulator_register(&regulators[pdev->id], &pdev->dev,
				  pdev->dev.platform_data, tps);
	if (IS_ERR(rdev))
		return PTR_ERR(rdev);

	platform_set_drvdata(pdev, rdev);

	return 0;
}

static int __devexit tps65217_regulator_remove(struct platform_device *pdev)
{
	struct regulator_dev *rdev = platform_get_drvdata(pdev);

	platform_set_drvdata(pdev, NULL);
	regulator_unregister(rdev);

	return 0;
}

static struct platform_driver tps65217_regulator_driver = {
	.driver = {
		.name = "tps65217-pmic",
	},
	.probe = tps65217_regulator_probe,
	.remove = __devexit_p(tps65217_regulator_remove),
};

static int __init tps65217_regulator_init(void)
{
	return platform_driver_register(&tps65217_regulator_driver);
}
subsys_initcall(tps65217_regulator_init);

static void __exit tps65217_regulator_exit(void)
{
	platform_driver_unregister(&tps65217_regulator_driver);
}
module_exit(tps65217_regulator_exit);


MODULE_AUTHOR("AnilKumar Ch <anilkumar@ti.com>");
MODULE_DESCRIPTION("TPS65217 voltage regulator driver");
MODULE_ALIAS("platform:tps65217-pmic");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
a493077f AC	1	/*
	2	* tps65217-regulator.c
	3	*
	4	* Regulator driver for TPS65217 PMIC
	5	*
	6	* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation version 2.
	11	*
	12	* This program is distributed "as is" WITHOUT ANY WARRANTY of any
	13	* kind, whether express or implied; without even the implied warranty
	14	* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*/
	17
	18	#include <linux/kernel.h>
	19	#include <linux/module.h>
	20	#include <linux/device.h>
	21	#include <linux/init.h>
	22	#include <linux/err.h>
	23	#include <linux/platform_device.h>
	24
	25	#include <linux/regulator/driver.h>
	26	#include <linux/regulator/machine.h>
	27	#include <linux/mfd/tps65217.h>
	28
	29	#define TPS65217_REGULATOR(_name, _id, _ops, _n) \
	30	{ \
	31	.name = _name, \
	32	.id = _id, \
	33	.ops = &_ops, \
	34	.n_voltages = _n, \
	35	.type = REGULATOR_VOLTAGE, \
	36	.owner = THIS_MODULE, \
	37	} \
	38
	39	#define TPS65217_INFO(_nm, _min, _max, _f1, _f2, _t, _n, _em, _vr, _vm) \
	40	{ \
	41	.name = _nm, \
	42	.min_uV = _min, \
	43	.max_uV = _max, \
	44	.vsel_to_uv = _f1, \
	45	.uv_to_vsel = _f2, \
	46	.table = _t, \
	47	.table_len = _n, \
	48	.enable_mask = _em, \
	49	.set_vout_reg = _vr, \
	50	.set_vout_mask = _vm, \
	51	}
	52
	53	static const int LDO1_VSEL_table[] = {
	54	1000000, 1100000, 1200000, 1250000,
	55	1300000, 1350000, 1400000, 1500000,
	56	1600000, 1800000, 2500000, 2750000,
	57	2800000, 3000000, 3100000, 3300000,
	58	};
	59
	60	static int tps65217_vsel_to_uv1(unsigned int vsel)
	61	{
	62	int uV = 0;
	63
	64	if (vsel > 63)
65	return -EINVAL;
66
67	if (vsel <= 24)
68	uV = vsel * 25000 + 900000;
69	else if (vsel <= 52)
70	uV = (vsel - 24) * 50000 + 1500000;
71	else if (vsel < 56)
72	uV = (vsel - 52) * 100000 + 2900000;
73	else
74	uV = 3300000;
75
76	return uV;
77	}
78
79	static int tps65217_uv_to_vsel1(int uV, unsigned int *vsel)
80	{
81	if ((uV < 0) && (uV > 3300000))
82	return -EINVAL;
83
84	if (uV <= 1500000)
85	*vsel = (uV - 875001) / 25000;
86	else if (uV <= 2900000)
87	*vsel = 24 + (uV - 1450001) / 50000;
88	else if (uV < 3300000)
89	*vsel = 52 + (uV - 2800001) / 100000;
90	else
91	*vsel = 56;
92
93	return 0;
94	}
95
96	static int tps65217_vsel_to_uv2(unsigned int vsel)
97	{
98	int uV = 0;
99
100	if (vsel > 31)
101	return -EINVAL;
102
103	if (vsel <= 8)
104	uV = vsel * 50000 + 1500000;
105	else if (vsel <= 13)
106	uV = (vsel - 8) * 100000 + 1900000;
107	else
108	uV = (vsel - 13) * 50000 + 2400000;
109
110	return uV;
111	}
112
113	static int tps65217_uv_to_vsel2(int uV, unsigned int *vsel)
114	{
115	if ((uV < 0) && (uV > 3300000))
116	return -EINVAL;
117
118	if (uV <= 1900000)
119	*vsel = (uV - 1450001) / 50000;
120	else if (uV <= 2400000)
121	*vsel = 8 + (uV - 1800001) / 100000;
122	else
123	*vsel = 13 + (uV - 2350001) / 50000;
124
125	return 0;
126	}
127
128	static struct tps_info tps65217_pmic_regs[] = {
129	TPS65217_INFO("DCDC1", 900000, 1800000, tps65217_vsel_to_uv1,
130	tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC1_EN,
131	TPS65217_REG_DEFDCDC1, TPS65217_DEFDCDCX_DCDC_MASK),
132	TPS65217_INFO("DCDC2", 900000, 3300000, tps65217_vsel_to_uv1,
133	tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC2_EN,
134	TPS65217_REG_DEFDCDC2, TPS65217_DEFDCDCX_DCDC_MASK),
135	TPS65217_INFO("DCDC3", 900000, 1500000, tps65217_vsel_to_uv1,
136	tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_DC3_EN,
137	TPS65217_REG_DEFDCDC3, TPS65217_DEFDCDCX_DCDC_MASK),
138	TPS65217_INFO("LDO1", 1000000, 3300000, NULL, NULL, LDO1_VSEL_table,
139	16, TPS65217_ENABLE_LDO1_EN, TPS65217_REG_DEFLDO1,
140	TPS65217_DEFLDO1_LDO1_MASK),
141	TPS65217_INFO("LDO2", 900000, 3300000, tps65217_vsel_to_uv1,
142	tps65217_uv_to_vsel1, NULL, 64, TPS65217_ENABLE_LDO2_EN,
143	TPS65217_REG_DEFLDO2, TPS65217_DEFLDO2_LDO2_MASK),
144	TPS65217_INFO("LDO3", 1800000, 3300000, tps65217_vsel_to_uv2,
145	tps65217_uv_to_vsel2, NULL, 32,
146	TPS65217_ENABLE_LS1_EN \| TPS65217_DEFLDO3_LDO3_EN,
147	TPS65217_REG_DEFLS1, TPS65217_DEFLDO3_LDO3_MASK),
148	TPS65217_INFO("LDO4", 1800000, 3300000, tps65217_vsel_to_uv2,
149	tps65217_uv_to_vsel2, NULL, 32,
150	TPS65217_ENABLE_LS2_EN \| TPS65217_DEFLDO4_LDO4_EN,
151	TPS65217_REG_DEFLS2, TPS65217_DEFLDO4_LDO4_MASK),
152	};
153
154	static int tps65217_pmic_dcdc_is_enabled(struct regulator_dev *dev)
155	{
156	int ret;
157	struct tps65217 *tps = rdev_get_drvdata(dev);
158	unsigned int data, dcdc = rdev_get_id(dev);
159
160	if (dcdc < TPS65217_DCDC_1 \|\| dcdc > TPS65217_DCDC_3)
161	return -EINVAL;
162
163	ret = tps65217_reg_read(tps, TPS65217_REG_ENABLE, &data);
164	if (ret)
165	return ret;
166
167	return (data & tps->info[dcdc]->enable_mask) ? 1 : 0;
168	}
169
170	static int tps65217_pmic_ldo_is_enabled(struct regulator_dev *dev)
171	{
172	int ret;
173	struct tps65217 *tps = rdev_get_drvdata(dev);
174	unsigned int data, ldo = rdev_get_id(dev);
175
176	if (ldo < TPS65217_LDO_1 \|\| ldo > TPS65217_LDO_4)
177	return -EINVAL;
178
179	ret = tps65217_reg_read(tps, TPS65217_REG_ENABLE, &data);
180	if (ret)
181	return ret;
182
183	return (data & tps->info[ldo]->enable_mask) ? 1 : 0;
184	}
185
186	static int tps65217_pmic_dcdc_enable(struct regulator_dev *dev)
187	{
188	struct tps65217 *tps = rdev_get_drvdata(dev);
189	unsigned int dcdc = rdev_get_id(dev);
190
191	if (dcdc < TPS65217_DCDC_1 \|\| dcdc > TPS65217_DCDC_3)
192	return -EINVAL;
193
194	/* Enable the regulator and password protection is level 1 */
195	return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
196	tps->info[dcdc]->enable_mask,
197	tps->info[dcdc]->enable_mask,
198	TPS65217_PROTECT_L1);
199	}
200
201	static int tps65217_pmic_dcdc_disable(struct regulator_dev *dev)
202	{
203	struct tps65217 *tps = rdev_get_drvdata(dev);
204	unsigned int dcdc = rdev_get_id(dev);
205
206	if (dcdc < TPS65217_DCDC_1 \|\| dcdc > TPS65217_DCDC_3)
207	return -EINVAL;
208
209	/* Disable the regulator and password protection is level 1 */
210	return tps65217_clear_bits(tps, TPS65217_REG_ENABLE,
211	tps->info[dcdc]->enable_mask, TPS65217_PROTECT_L1);
212	}
213
214	static int tps65217_pmic_ldo_enable(struct regulator_dev *dev)
215	{
216	struct tps65217 *tps = rdev_get_drvdata(dev);
217	unsigned int ldo = rdev_get_id(dev);
218
219	if (ldo < TPS65217_LDO_1 \|\| ldo > TPS65217_LDO_4)
220	return -EINVAL;
221
222	/* Enable the regulator and password protection is level 1 */
223	return tps65217_set_bits(tps, TPS65217_REG_ENABLE,
224	tps->info[ldo]->enable_mask,
225	tps->info[ldo]->enable_mask,
226	TPS65217_PROTECT_L1);
227	}
228
229	static int tps65217_pmic_ldo_disable(struct regulator_dev *dev)
230	{
231	struct tps65217 *tps = rdev_get_drvdata(dev);
232	unsigned int ldo = rdev_get_id(dev);
233
234	if (ldo < TPS65217_LDO_1 \|\| ldo > TPS65217_LDO_4)
235	return -EINVAL;
236
237	/* Disable the regulator and password protection is level 1 */
238	return tps65217_clear_bits(tps, TPS65217_REG_ENABLE,
239	tps->info[ldo]->enable_mask, TPS65217_PROTECT_L1);
240	}
241
242	static int tps65217_pmic_dcdc_get_voltage_sel(struct regulator_dev *dev)
243	{
244	int ret;
245	struct tps65217 *tps = rdev_get_drvdata(dev);
246	unsigned int selector, dcdc = rdev_get_id(dev);
247
248	if (dcdc < TPS65217_DCDC_1 \|\| dcdc > TPS65217_DCDC_3)
249	return -EINVAL;
250
251	ret = tps65217_reg_read(tps, tps->info[dcdc]->set_vout_reg, &selector);
252	if (ret)
253	return ret;
254
255	selector &= tps->info[dcdc]->set_vout_mask;
256
257	return selector;
258	}
259
260	static int tps65217_pmic_dcdc_set_voltage(struct regulator_dev *dev,
261	int min_uV, int max_uV, unsigned *selector)
262	{
263	int ret;
264	struct tps65217 *tps = rdev_get_drvdata(dev);
265	unsigned int dcdc = rdev_get_id(dev);
266
267	if (dcdc < TPS65217_DCDC_1 \|\| dcdc > TPS65217_DCDC_3)
268	return -EINVAL;
269
270	if (min_uV < tps->info[dcdc]->min_uV
271	\|\| min_uV > tps->info[dcdc]->max_uV)
272	return -EINVAL;
273
274	if (max_uV < tps->info[dcdc]->min_uV
275	\|\| max_uV > tps->info[dcdc]->max_uV)
276	return -EINVAL;
277
278	ret = tps->info[dcdc]->uv_to_vsel(min_uV, selector);
279	if (ret)
280	return ret;
281
282	/* Set the voltage based on vsel value and write protect level is 2 */
283	ret = tps65217_set_bits(tps, tps->info[dcdc]->set_vout_reg,
284	tps->info[dcdc]->set_vout_mask,
285	*selector, TPS65217_PROTECT_L2);
286	if (ret)
287	return ret;
288
289	/* Set GO bit to initiate voltage transistion */
290	return tps65217_set_bits(tps, TPS65217_REG_DEFSLEW,
291	TPS65217_DEFSLEW_GO, TPS65217_DEFSLEW_GO,
292	TPS65217_PROTECT_L2);
293	}
294
295	static int tps65217_pmic_ldo_get_voltage_sel(struct regulator_dev *dev)
296	{
297	int ret;
298	struct tps65217 *tps = rdev_get_drvdata(dev);
299	unsigned int selector, ldo = rdev_get_id(dev);
300
301	if (ldo < TPS65217_LDO_1 \|\| ldo > TPS65217_LDO_4)
302	return -EINVAL;
303
304	ret = tps65217_reg_read(tps, tps->info[ldo]->set_vout_reg, &selector);
305	if (ret)
306	return ret;
307
308	selector &= tps->info[ldo]->set_vout_mask;
309
310	return selector;
311	}
312
313	static int tps65217_pmic_ldo_set_voltage_sel(struct regulator_dev *dev,
314	unsigned selector)
315	{
316	struct tps65217 *tps = rdev_get_drvdata(dev);
317	int ldo = rdev_get_id(dev);
318
319	if (ldo != TPS65217_LDO_1)
320	return -EINVAL;
321
322	if (selector >= tps->info[ldo]->table_len)
323	return -EINVAL;
324
325	/* Set the voltage based on vsel value and write protect level is 2 */
326	return tps65217_set_bits(tps, tps->info[ldo]->set_vout_reg,
327	tps->info[ldo]->set_vout_mask,
328	selector, TPS65217_PROTECT_L2);
329	}
330
331	static int tps65217_pmic_ldo_set_voltage(struct regulator_dev *dev,
332	int min_uV, int max_uV, unsigned *selector)
333	{
334	int ret;
335	struct tps65217 *tps = rdev_get_drvdata(dev);
336	unsigned int ldo = rdev_get_id(dev);
337
338	if (ldo < TPS65217_LDO_2 \|\| ldo > TPS65217_LDO_4)
339	return -EINVAL;
340
341	if (min_uV < tps->info[ldo]->min_uV
342	\|\| min_uV > tps->info[ldo]->max_uV)
343	return -EINVAL;
344
345	if (max_uV < tps->info[ldo]->min_uV
346	\|\| max_uV > tps->info[ldo]->max_uV)
347	return -EINVAL;
348
349	ret = tps->info[ldo]->uv_to_vsel(min_uV, selector);
350	if (ret)
351	return ret;
352
353	/* Set the voltage based on vsel value and write protect level is 2 */
354	return tps65217_set_bits(tps, tps->info[ldo]->set_vout_reg,
355	tps->info[ldo]->set_vout_mask,
356	*selector, TPS65217_PROTECT_L2);
357	}
358
359	static int tps65217_pmic_dcdc_list_voltage(struct regulator_dev *dev,
360	unsigned selector)
361	{
362	struct tps65217 *tps = rdev_get_drvdata(dev);
363	unsigned int dcdc = rdev_get_id(dev);
364
365	if (dcdc < TPS65217_DCDC_1 \|\| dcdc > TPS65217_DCDC_3)
366	return -EINVAL;
367
368	if (selector >= tps->info[dcdc]->table_len)
369	return -EINVAL;
370
371	return tps->info[dcdc]->vsel_to_uv(selector);
372	}
373
374	static int tps65217_pmic_ldo_list_voltage(struct regulator_dev *dev,
375	unsigned selector)
376	{
377	struct tps65217 *tps = rdev_get_drvdata(dev);
378	unsigned int ldo = rdev_get_id(dev);
379
380	if (ldo < TPS65217_LDO_1 \|\| ldo > TPS65217_LDO_4)
381	return -EINVAL;
382
383	if (selector >= tps->info[ldo]->table_len)
384	return -EINVAL;
385
386	if (tps->info[ldo]->table)
387	return tps->info[ldo]->table[selector];
388
389	return tps->info[ldo]->vsel_to_uv(selector);
390	}
391
392	/* Operations permitted on DCDCx */
393	static struct regulator_ops tps65217_pmic_dcdc_ops = {
394	.is_enabled = tps65217_pmic_dcdc_is_enabled,
395	.enable = tps65217_pmic_dcdc_enable,
396	.disable = tps65217_pmic_dcdc_disable,
397	.get_voltage_sel = tps65217_pmic_dcdc_get_voltage_sel,
398	.set_voltage = tps65217_pmic_dcdc_set_voltage,
399	.list_voltage = tps65217_pmic_dcdc_list_voltage,
400	};
401
402	/* Operations permitted on LDO1 */
403	static struct regulator_ops tps65217_pmic_ldo1_ops = {
404	.is_enabled = tps65217_pmic_ldo_is_enabled,
405	.enable = tps65217_pmic_ldo_enable,
406	.disable = tps65217_pmic_ldo_disable,
407	.get_voltage_sel = tps65217_pmic_ldo_get_voltage_sel,
408	.set_voltage_sel = tps65217_pmic_ldo_set_voltage_sel,
409	.list_voltage = tps65217_pmic_ldo_list_voltage,
410	};
411
412	/* Operations permitted on LDO2, LDO3 and LDO4 */
413	static struct regulator_ops tps65217_pmic_ldo234_ops = {
414	.is_enabled = tps65217_pmic_ldo_is_enabled,
415	.enable = tps65217_pmic_ldo_enable,
416	.disable = tps65217_pmic_ldo_disable,
417	.get_voltage_sel = tps65217_pmic_ldo_get_voltage_sel,
418	.set_voltage = tps65217_pmic_ldo_set_voltage,
419	.list_voltage = tps65217_pmic_ldo_list_voltage,
420	};
421
422	static struct regulator_desc regulators[] = {
423	TPS65217_REGULATOR("DCDC1", TPS65217_DCDC_1,
424	tps65217_pmic_dcdc_ops, 64),
425	TPS65217_REGULATOR("DCDC2",TPS65217_DCDC_2,
426	tps65217_pmic_dcdc_ops, 64),
427	TPS65217_REGULATOR("DCDC3", TPS65217_DCDC_3,
428	tps65217_pmic_dcdc_ops, 64),
429	TPS65217_REGULATOR("LDO1", TPS65217_LDO_1,
430	tps65217_pmic_ldo1_ops, 16),
431	TPS65217_REGULATOR("LDO2", TPS65217_LDO_2,
432	tps65217_pmic_ldo234_ops, 64),
433	TPS65217_REGULATOR("LDO3", TPS65217_LDO_3,
434	tps65217_pmic_ldo234_ops, 32),
435	TPS65217_REGULATOR("LDO4", TPS65217_LDO_4,
436	tps65217_pmic_ldo234_ops, 32),
437	};
438
439	static int __devinit tps65217_regulator_probe(struct platform_device *pdev)
440	{
441	struct regulator_dev *rdev;
442	struct tps65217 *tps;
443	struct tps_info *info = &tps65217_pmic_regs[pdev->id];
444
445	/* Already set by core driver */
446	tps = dev_to_tps65217(pdev->dev.parent);
447	tps->info[pdev->id] = info;
448
449	rdev = regulator_register(&regulators[pdev->id], &pdev->dev,
450	pdev->dev.platform_data, tps);
451	if (IS_ERR(rdev))
452	return PTR_ERR(rdev);
453
454	platform_set_drvdata(pdev, rdev);
455
456	return 0;
457	}
458
459	static int __devexit tps65217_regulator_remove(struct platform_device *pdev)
460	{
461	struct regulator_dev *rdev = platform_get_drvdata(pdev);
462
463	platform_set_drvdata(pdev, NULL);
464	regulator_unregister(rdev);
465
466	return 0;
467	}
468
469	static struct platform_driver tps65217_regulator_driver = {
470	.driver = {
471	.name = "tps65217-pmic",
472	},
473	.probe = tps65217_regulator_probe,
474	.remove = __devexit_p(tps65217_regulator_remove),
475	};
476
477	static int __init tps65217_regulator_init(void)
478	{
479	return platform_driver_register(&tps65217_regulator_driver);
480	}
481	subsys_initcall(tps65217_regulator_init);
482
483	static void __exit tps65217_regulator_exit(void)
484	{
485	platform_driver_unregister(&tps65217_regulator_driver);
486	}
487	module_exit(tps65217_regulator_exit);
488
489
490	MODULE_AUTHOR("AnilKumar Ch <anilkumar@ti.com>");
491	MODULE_DESCRIPTION("TPS65217 voltage regulator driver");
492	MODULE_ALIAS("platform:tps65217-pmic");
493	MODULE_LICENSE("GPL v2");