[mirror_ubuntu-bionic-kernel.git] / drivers / regulator / rk808-regulator.c

/*
 * Regulator driver for Rockchip RK808
 *
 * Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
 *
 * Author: Chris Zhong <zyw@rock-chips.com>
 * Author: Zhang Qing <zhangqing@rock-chips.com>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 */

#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/mfd/rk808.h>
#include <linux/of_device.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/of_regulator.h>

/* Field Definitions */
#define RK808_BUCK_VSEL_MASK	0x3f
#define RK808_BUCK4_VSEL_MASK	0xf
#define RK808_LDO_VSEL_MASK	0x1f

/* Ramp rate definitions for buck1 / buck2 only */
#define RK808_RAMP_RATE_OFFSET		3
#define RK808_RAMP_RATE_MASK		(3 << RK808_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_2MV_PER_US	(0 << RK808_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_4MV_PER_US	(1 << RK808_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_6MV_PER_US	(2 << RK808_RAMP_RATE_OFFSET)
#define RK808_RAMP_RATE_10MV_PER_US	(3 << RK808_RAMP_RATE_OFFSET)

static const int rk808_buck_config_regs[] = {
	RK808_BUCK1_CONFIG_REG,
	RK808_BUCK2_CONFIG_REG,
	RK808_BUCK3_CONFIG_REG,
	RK808_BUCK4_CONFIG_REG,
};

static const struct regulator_linear_range rk808_buck_voltage_ranges[] = {
	REGULATOR_LINEAR_RANGE(700000, 0, 63, 12500),
};

static const struct regulator_linear_range rk808_buck4_voltage_ranges[] = {
	REGULATOR_LINEAR_RANGE(1800000, 0, 15, 100000),
};

static const struct regulator_linear_range rk808_ldo_voltage_ranges[] = {
	REGULATOR_LINEAR_RANGE(1800000, 0, 16, 100000),
};

static const struct regulator_linear_range rk808_ldo3_voltage_ranges[] = {
	REGULATOR_LINEAR_RANGE(800000, 0, 13, 100000),
	REGULATOR_LINEAR_RANGE(2500000, 15, 15, 0),
};

static const struct regulator_linear_range rk808_ldo6_voltage_ranges[] = {
	REGULATOR_LINEAR_RANGE(800000, 0, 17, 100000),
};

static int rk808_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
{
	unsigned int ramp_value = RK808_RAMP_RATE_10MV_PER_US;
	unsigned int reg = rk808_buck_config_regs[rdev->desc->id -
						  RK808_ID_DCDC1];

	switch (ramp_delay) {
	case 1 ... 2000:
		ramp_value = RK808_RAMP_RATE_2MV_PER_US;
		break;
	case 2001 ... 4000:
		ramp_value = RK808_RAMP_RATE_4MV_PER_US;
		break;
	case 4001 ... 6000:
		ramp_value = RK808_RAMP_RATE_6MV_PER_US;
		break;
	case 6001 ... 10000:
		break;
	default:
		pr_warn("%s ramp_delay: %d not supported, setting 10000\n",
			rdev->desc->name, ramp_delay);
	}

	return regmap_update_bits(rdev->regmap, reg,
				  RK808_RAMP_RATE_MASK, ramp_value);
}

static struct regulator_ops rk808_buck1_2_ops = {
	.list_voltage		= regulator_list_voltage_linear_range,
	.map_voltage		= regulator_map_voltage_linear_range,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
	.enable			= regulator_enable_regmap,
	.disable		= regulator_disable_regmap,
	.is_enabled		= regulator_is_enabled_regmap,
	.set_ramp_delay		= rk808_set_ramp_delay,
};

static struct regulator_ops rk808_reg_ops = {
	.list_voltage		= regulator_list_voltage_linear_range,
	.map_voltage		= regulator_map_voltage_linear_range,
	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
	.enable			= regulator_enable_regmap,
	.disable		= regulator_disable_regmap,
	.is_enabled		= regulator_is_enabled_regmap,
};

static struct regulator_ops rk808_switch_ops = {
	.enable = regulator_enable_regmap,
	.disable = regulator_disable_regmap,
	.is_enabled = regulator_is_enabled_regmap,
};

static const struct regulator_desc rk808_reg[] = {
	{
		.name = "DCDC_REG1",
		.supply_name = "vcc1",
		.id = RK808_ID_DCDC1,
		.ops = &rk808_buck1_2_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 64,
		.linear_ranges = rk808_buck_voltage_ranges,
		.n_linear_ranges = ARRAY_SIZE(rk808_buck_voltage_ranges),
		.vsel_reg = RK808_BUCK1_ON_VSEL_REG,
		.vsel_mask = RK808_BUCK_VSEL_MASK,
		.enable_reg = RK808_DCDC_EN_REG,
		.enable_mask = BIT(0),
		.owner = THIS_MODULE,
	}, {
		.name = "DCDC_REG2",
		.supply_name = "vcc2",
		.id = RK808_ID_DCDC2,
		.ops = &rk808_buck1_2_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 64,
		.linear_ranges = rk808_buck_voltage_ranges,
		.n_linear_ranges = ARRAY_SIZE(rk808_buck_voltage_ranges),
		.vsel_reg = RK808_BUCK2_ON_VSEL_REG,
		.vsel_mask = RK808_BUCK_VSEL_MASK,
		.enable_reg = RK808_DCDC_EN_REG,
		.enable_mask = BIT(1),
		.owner = THIS_MODULE,
	}, {
		.name = "DCDC_REG3",
		.supply_name = "vcc3",
		.id = RK808_ID_DCDC3,
		.ops = &rk808_switch_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 1,
		.enable_reg = RK808_DCDC_EN_REG,
		.enable_mask = BIT(2),
		.owner = THIS_MODULE,
	}, {
		.name = "DCDC_REG4",
		.supply_name = "vcc4",
		.id = RK808_ID_DCDC4,
		.ops = &rk808_reg_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 16,
		.linear_ranges = rk808_buck4_voltage_ranges,
		.n_linear_ranges = ARRAY_SIZE(rk808_buck4_voltage_ranges),
		.vsel_reg = RK808_BUCK4_ON_VSEL_REG,
		.vsel_mask = RK808_BUCK4_VSEL_MASK,
		.enable_reg = RK808_DCDC_EN_REG,
		.enable_mask = BIT(3),
		.owner = THIS_MODULE,
	}, {
		.name = "LDO_REG1",
		.supply_name = "vcc6",
		.id = RK808_ID_LDO1,
		.ops = &rk808_reg_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 17,
		.linear_ranges = rk808_ldo_voltage_ranges,
		.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
		.vsel_reg = RK808_LDO1_ON_VSEL_REG,
		.vsel_mask = RK808_LDO_VSEL_MASK,
		.enable_reg = RK808_LDO_EN_REG,
		.enable_mask = BIT(0),
		.owner = THIS_MODULE,
	}, {
		.name = "LDO_REG2",
		.supply_name = "vcc6",
		.id = RK808_ID_LDO2,
		.ops = &rk808_reg_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 17,
		.linear_ranges = rk808_ldo_voltage_ranges,
		.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
		.vsel_reg = RK808_LDO2_ON_VSEL_REG,
		.vsel_mask = RK808_LDO_VSEL_MASK,
		.enable_reg = RK808_LDO_EN_REG,
		.enable_mask = BIT(1),
		.owner = THIS_MODULE,
	}, {
		.name = "LDO_REG3",
		.supply_name = "vcc7",
		.id = RK808_ID_LDO3,
		.ops = &rk808_reg_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 16,
		.linear_ranges = rk808_ldo3_voltage_ranges,
		.n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges),
		.vsel_reg = RK808_LDO3_ON_VSEL_REG,
		.vsel_mask = RK808_BUCK4_VSEL_MASK,
		.enable_reg = RK808_LDO_EN_REG,
		.enable_mask = BIT(2),
		.owner = THIS_MODULE,
	}, {
		.name = "LDO_REG4",
		.supply_name = "vcc9",
		.id = RK808_ID_LDO4,
		.ops = &rk808_reg_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 17,
		.linear_ranges = rk808_ldo_voltage_ranges,
		.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
		.vsel_reg = RK808_LDO4_ON_VSEL_REG,
		.vsel_mask = RK808_LDO_VSEL_MASK,
		.enable_reg = RK808_LDO_EN_REG,
		.enable_mask = BIT(3),
		.owner = THIS_MODULE,
	}, {
		.name = "LDO_REG5",
		.supply_name = "vcc9",
		.id = RK808_ID_LDO5,
		.ops = &rk808_reg_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 17,
		.linear_ranges = rk808_ldo_voltage_ranges,
		.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
		.vsel_reg = RK808_LDO5_ON_VSEL_REG,
		.vsel_mask = RK808_LDO_VSEL_MASK,
		.enable_reg = RK808_LDO_EN_REG,
		.enable_mask = BIT(4),
		.owner = THIS_MODULE,
	}, {
		.name = "LDO_REG6",
		.supply_name = "vcc10",
		.id = RK808_ID_LDO6,
		.ops = &rk808_reg_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 18,
		.linear_ranges = rk808_ldo6_voltage_ranges,
		.n_linear_ranges = ARRAY_SIZE(rk808_ldo6_voltage_ranges),
		.vsel_reg = RK808_LDO6_ON_VSEL_REG,
		.vsel_mask = RK808_LDO_VSEL_MASK,
		.enable_reg = RK808_LDO_EN_REG,
		.enable_mask = BIT(5),
		.owner = THIS_MODULE,
	}, {
		.name = "LDO_REG7",
		.supply_name = "vcc7",
		.id = RK808_ID_LDO7,
		.ops = &rk808_reg_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 18,
		.linear_ranges = rk808_ldo6_voltage_ranges,
		.n_linear_ranges = ARRAY_SIZE(rk808_ldo6_voltage_ranges),
		.vsel_reg = RK808_LDO7_ON_VSEL_REG,
		.vsel_mask = RK808_LDO_VSEL_MASK,
		.enable_reg = RK808_LDO_EN_REG,
		.enable_mask = BIT(6),
		.owner = THIS_MODULE,
	}, {
		.name = "LDO_REG8",
		.supply_name = "vcc11",
		.id = RK808_ID_LDO8,
		.ops = &rk808_reg_ops,
		.type = REGULATOR_VOLTAGE,
		.n_voltages = 17,
		.linear_ranges = rk808_ldo_voltage_ranges,
		.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
		.vsel_reg = RK808_LDO8_ON_VSEL_REG,
		.vsel_mask = RK808_LDO_VSEL_MASK,
		.enable_reg = RK808_LDO_EN_REG,
		.enable_mask = BIT(7),
		.owner = THIS_MODULE,
	}, {
		.name = "SWITCH_REG1",
		.supply_name = "vcc8",
		.id = RK808_ID_SWITCH1,
		.ops = &rk808_switch_ops,
		.type = REGULATOR_VOLTAGE,
		.enable_reg = RK808_DCDC_EN_REG,
		.enable_mask = BIT(5),
		.owner = THIS_MODULE,
	}, {
		.name = "SWITCH_REG2",
		.supply_name = "vcc12",
		.id = RK808_ID_SWITCH2,
		.ops = &rk808_switch_ops,
		.type = REGULATOR_VOLTAGE,
		.enable_reg = RK808_DCDC_EN_REG,
		.enable_mask = BIT(6),
		.owner = THIS_MODULE,
	},
};

static struct of_regulator_match rk808_reg_matches[] = {
	[RK808_ID_DCDC1]	= { .name = "DCDC_REG1" },
	[RK808_ID_DCDC2]	= { .name = "DCDC_REG2" },
	[RK808_ID_DCDC3]	= { .name = "DCDC_REG3" },
	[RK808_ID_DCDC4]	= { .name = "DCDC_REG4" },
	[RK808_ID_LDO1]		= { .name = "LDO_REG1" },
	[RK808_ID_LDO2]		= { .name = "LDO_REG2" },
	[RK808_ID_LDO3]		= { .name = "LDO_REG3" },
	[RK808_ID_LDO4]		= { .name = "LDO_REG4" },
	[RK808_ID_LDO5]		= { .name = "LDO_REG5" },
	[RK808_ID_LDO6]		= { .name = "LDO_REG6" },
	[RK808_ID_LDO7]		= { .name = "LDO_REG7" },
	[RK808_ID_LDO8]		= { .name = "LDO_REG8" },
	[RK808_ID_SWITCH1]	= { .name = "SWITCH_REG1" },
	[RK808_ID_SWITCH2]	= { .name = "SWITCH_REG2" },
};

static int rk808_regulator_probe(struct platform_device *pdev)
{
	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
	struct i2c_client *client = rk808->i2c;
	struct device_node *reg_np;
	struct regulator_config config = {};
	struct regulator_dev *rk808_rdev;
	int ret, i;

	reg_np = of_get_child_by_name(client->dev.of_node, "regulators");
	if (!reg_np)
		return -ENXIO;

	ret = of_regulator_match(&pdev->dev, reg_np, rk808_reg_matches,
				 RK808_NUM_REGULATORS);
	of_node_put(reg_np);
	if (ret < 0)
		return ret;

	/* Instantiate the regulators */
	for (i = 0; i < RK808_NUM_REGULATORS; i++) {
		if (!rk808_reg_matches[i].init_data ||
		    !rk808_reg_matches[i].of_node)
			continue;

		config.dev = &client->dev;
		config.driver_data = rk808;
		config.regmap = rk808->regmap;
		config.of_node = rk808_reg_matches[i].of_node;
		config.init_data = rk808_reg_matches[i].init_data;

		rk808_rdev = devm_regulator_register(&pdev->dev,
						     &rk808_reg[i], &config);
		if (IS_ERR(rk808_rdev)) {
			dev_err(&client->dev,
				"failed to register %d regulator\n", i);
			return PTR_ERR(rk808_rdev);
		}
	}

	return 0;
}

static struct platform_driver rk808_regulator_driver = {
	.probe = rk808_regulator_probe,
	.driver = {
		.name = "rk808-regulator",
		.owner = THIS_MODULE,
	},
};

module_platform_driver(rk808_regulator_driver);

MODULE_DESCRIPTION("regulator driver for the rk808 series PMICs");
MODULE_AUTHOR("Chris Zhong<zyw@rock-chips.com>");
MODULE_AUTHOR("Zhang Qing<zhangqing@rock-chips.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:rk808-regulator");
Commit	Line	Data
2cd64ae3 CZ	1	/*
	2	* Regulator driver for Rockchip RK808
	3	*
	4	* Copyright (c) 2014, Fuzhou Rockchip Electronics Co., Ltd
	5	*
	6	* Author: Chris Zhong <zyw@rock-chips.com>
	7	* Author: Zhang Qing <zhangqing@rock-chips.com>
	8	*
	9	* This program is free software; you can redistribute it and/or modify it
	10	* under the terms and conditions of the GNU General Public License,
	11	* version 2, as published by the Free Software Foundation.
	12	*
	13	* This program is distributed in the hope it will be useful, but WITHOUT
	14	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	15	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	16	* more details.
2cd64ae3 CZ	17	*/
	18
	19	#include <linux/module.h>
2cd64ae3	20	#include <linux/i2c.h>
2cd64ae3	21	#include <linux/mfd/rk808.h>
2cd64ae3 CZ	22	#include <linux/of_device.h>
	23	#include <linux/regulator/driver.h>
	24	#include <linux/regulator/of_regulator.h>
571a4010 CZ	25
571a4010 CZ	26	/* Field Definitions */
2cd64ae3 CZ	27	#define RK808_BUCK_VSEL_MASK 0x3f
	28	#define RK808_BUCK4_VSEL_MASK 0xf
	29	#define RK808_LDO_VSEL_MASK 0x1f
	30
8af25227 DA	31	/* Ramp rate definitions for buck1 / buck2 only */
	32	#define RK808_RAMP_RATE_OFFSET 3
	33	#define RK808_RAMP_RATE_MASK (3 << RK808_RAMP_RATE_OFFSET)
	34	#define RK808_RAMP_RATE_2MV_PER_US (0 << RK808_RAMP_RATE_OFFSET)
	35	#define RK808_RAMP_RATE_4MV_PER_US (1 << RK808_RAMP_RATE_OFFSET)
	36	#define RK808_RAMP_RATE_6MV_PER_US (2 << RK808_RAMP_RATE_OFFSET)
	37	#define RK808_RAMP_RATE_10MV_PER_US (3 << RK808_RAMP_RATE_OFFSET)
	38
	39	static const int rk808_buck_config_regs[] = {
	40	RK808_BUCK1_CONFIG_REG,
	41	RK808_BUCK2_CONFIG_REG,
	42	RK808_BUCK3_CONFIG_REG,
	43	RK808_BUCK4_CONFIG_REG,
	44	};
	45
2cd64ae3 CZ	46	static const struct regulator_linear_range rk808_buck_voltage_ranges[] = {
	47	REGULATOR_LINEAR_RANGE(700000, 0, 63, 12500),
	48	};
	49
	50	static const struct regulator_linear_range rk808_buck4_voltage_ranges[] = {
	51	REGULATOR_LINEAR_RANGE(1800000, 0, 15, 100000),
	52	};
	53
	54	static const struct regulator_linear_range rk808_ldo_voltage_ranges[] = {
	55	REGULATOR_LINEAR_RANGE(1800000, 0, 16, 100000),
	56	};
	57
	58	static const struct regulator_linear_range rk808_ldo3_voltage_ranges[] = {
	59	REGULATOR_LINEAR_RANGE(800000, 0, 13, 100000),
	60	REGULATOR_LINEAR_RANGE(2500000, 15, 15, 0),
	61	};
	62
	63	static const struct regulator_linear_range rk808_ldo6_voltage_ranges[] = {
	64	REGULATOR_LINEAR_RANGE(800000, 0, 17, 100000),
	65	};
	66
8af25227 DA	67	static int rk808_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay)
	68	{
	69	unsigned int ramp_value = RK808_RAMP_RATE_10MV_PER_US;
	70	unsigned int reg = rk808_buck_config_regs[rdev->desc->id -
	71	RK808_ID_DCDC1];
	72
	73	switch (ramp_delay) {
	74	case 1 ... 2000:
	75	ramp_value = RK808_RAMP_RATE_2MV_PER_US;
	76	break;
	77	case 2001 ... 4000:
	78	ramp_value = RK808_RAMP_RATE_4MV_PER_US;
	79	break;
	80	case 4001 ... 6000:
	81	ramp_value = RK808_RAMP_RATE_6MV_PER_US;
	82	break;
	83	case 6001 ... 10000:
	84	break;
	85	default:
	86	pr_warn("%s ramp_delay: %d not supported, setting 10000\n",
	87	rdev->desc->name, ramp_delay);
	88	}
	89
	90	return regmap_update_bits(rdev->regmap, reg,
	91	RK808_RAMP_RATE_MASK, ramp_value);
	92	}
	93
	94	static struct regulator_ops rk808_buck1_2_ops = {
	95	.list_voltage = regulator_list_voltage_linear_range,
	96	.map_voltage = regulator_map_voltage_linear_range,
	97	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	98	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	99	.enable = regulator_enable_regmap,
	100	.disable = regulator_disable_regmap,
	101	.is_enabled = regulator_is_enabled_regmap,
	102	.set_ramp_delay = rk808_set_ramp_delay,
	103	};
	104
2cd64ae3 CZ	105	static struct regulator_ops rk808_reg_ops = {
	106	.list_voltage = regulator_list_voltage_linear_range,
	107	.map_voltage = regulator_map_voltage_linear_range,
	108	.get_voltage_sel = regulator_get_voltage_sel_regmap,
	109	.set_voltage_sel = regulator_set_voltage_sel_regmap,
	110	.enable = regulator_enable_regmap,
	111	.disable = regulator_disable_regmap,
	112	.is_enabled = regulator_is_enabled_regmap,
	113	};
	114
	115	static struct regulator_ops rk808_switch_ops = {
	116	.enable = regulator_enable_regmap,
	117	.disable = regulator_disable_regmap,
	118	.is_enabled = regulator_is_enabled_regmap,
	119	};
	120
	121	static const struct regulator_desc rk808_reg[] = {
	122	{
	123	.name = "DCDC_REG1",
b8074eba	124	.supply_name = "vcc1",
2cd64ae3	125	.id = RK808_ID_DCDC1,
8af25227	126	.ops = &rk808_buck1_2_ops,
2cd64ae3 CZ	127	.type = REGULATOR_VOLTAGE,
	128	.n_voltages = 64,
	129	.linear_ranges = rk808_buck_voltage_ranges,
	130	.n_linear_ranges = ARRAY_SIZE(rk808_buck_voltage_ranges),
	131	.vsel_reg = RK808_BUCK1_ON_VSEL_REG,
	132	.vsel_mask = RK808_BUCK_VSEL_MASK,
	133	.enable_reg = RK808_DCDC_EN_REG,
	134	.enable_mask = BIT(0),
	135	.owner = THIS_MODULE,
	136	}, {
	137	.name = "DCDC_REG2",
b8074eba	138	.supply_name = "vcc2",
2cd64ae3	139	.id = RK808_ID_DCDC2,
8af25227	140	.ops = &rk808_buck1_2_ops,
2cd64ae3 CZ	141	.type = REGULATOR_VOLTAGE,
	142	.n_voltages = 64,
	143	.linear_ranges = rk808_buck_voltage_ranges,
	144	.n_linear_ranges = ARRAY_SIZE(rk808_buck_voltage_ranges),
	145	.vsel_reg = RK808_BUCK2_ON_VSEL_REG,
	146	.vsel_mask = RK808_BUCK_VSEL_MASK,
	147	.enable_reg = RK808_DCDC_EN_REG,
	148	.enable_mask = BIT(1),
	149	.owner = THIS_MODULE,
	150	}, {
	151	.name = "DCDC_REG3",
b8074eba	152	.supply_name = "vcc3",
2cd64ae3 CZ	153	.id = RK808_ID_DCDC3,
	154	.ops = &rk808_switch_ops,
	155	.type = REGULATOR_VOLTAGE,
	156	.n_voltages = 1,
	157	.enable_reg = RK808_DCDC_EN_REG,
	158	.enable_mask = BIT(2),
	159	.owner = THIS_MODULE,
	160	}, {
	161	.name = "DCDC_REG4",
b8074eba	162	.supply_name = "vcc4",
2cd64ae3 CZ	163	.id = RK808_ID_DCDC4,
	164	.ops = &rk808_reg_ops,
	165	.type = REGULATOR_VOLTAGE,
5a82067f	166	.n_voltages = 16,
2cd64ae3 CZ	167	.linear_ranges = rk808_buck4_voltage_ranges,
	168	.n_linear_ranges = ARRAY_SIZE(rk808_buck4_voltage_ranges),
	169	.vsel_reg = RK808_BUCK4_ON_VSEL_REG,
	170	.vsel_mask = RK808_BUCK4_VSEL_MASK,
	171	.enable_reg = RK808_DCDC_EN_REG,
	172	.enable_mask = BIT(3),
	173	.owner = THIS_MODULE,
	174	}, {
	175	.name = "LDO_REG1",
b8074eba	176	.supply_name = "vcc6",
2cd64ae3 CZ	177	.id = RK808_ID_LDO1,
	178	.ops = &rk808_reg_ops,
	179	.type = REGULATOR_VOLTAGE,
	180	.n_voltages = 17,
	181	.linear_ranges = rk808_ldo_voltage_ranges,
	182	.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
	183	.vsel_reg = RK808_LDO1_ON_VSEL_REG,
	184	.vsel_mask = RK808_LDO_VSEL_MASK,
	185	.enable_reg = RK808_LDO_EN_REG,
	186	.enable_mask = BIT(0),
	187	.owner = THIS_MODULE,
	188	}, {
	189	.name = "LDO_REG2",
b8074eba	190	.supply_name = "vcc6",
2cd64ae3 CZ	191	.id = RK808_ID_LDO2,
	192	.ops = &rk808_reg_ops,
	193	.type = REGULATOR_VOLTAGE,
	194	.n_voltages = 17,
	195	.linear_ranges = rk808_ldo_voltage_ranges,
	196	.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
	197	.vsel_reg = RK808_LDO2_ON_VSEL_REG,
	198	.vsel_mask = RK808_LDO_VSEL_MASK,
	199	.enable_reg = RK808_LDO_EN_REG,
	200	.enable_mask = BIT(1),
	201	.owner = THIS_MODULE,
	202	}, {
	203	.name = "LDO_REG3",
b8074eba	204	.supply_name = "vcc7",
2cd64ae3 CZ	205	.id = RK808_ID_LDO3,
	206	.ops = &rk808_reg_ops,
	207	.type = REGULATOR_VOLTAGE,
	208	.n_voltages = 16,
	209	.linear_ranges = rk808_ldo3_voltage_ranges,
	210	.n_linear_ranges = ARRAY_SIZE(rk808_ldo3_voltage_ranges),
	211	.vsel_reg = RK808_LDO3_ON_VSEL_REG,
	212	.vsel_mask = RK808_BUCK4_VSEL_MASK,
	213	.enable_reg = RK808_LDO_EN_REG,
	214	.enable_mask = BIT(2),
	215	.owner = THIS_MODULE,
	216	}, {
	217	.name = "LDO_REG4",
b8074eba	218	.supply_name = "vcc9",
2cd64ae3 CZ	219	.id = RK808_ID_LDO4,
	220	.ops = &rk808_reg_ops,
	221	.type = REGULATOR_VOLTAGE,
	222	.n_voltages = 17,
	223	.linear_ranges = rk808_ldo_voltage_ranges,
	224	.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
	225	.vsel_reg = RK808_LDO4_ON_VSEL_REG,
	226	.vsel_mask = RK808_LDO_VSEL_MASK,
	227	.enable_reg = RK808_LDO_EN_REG,
	228	.enable_mask = BIT(3),
	229	.owner = THIS_MODULE,
	230	}, {
	231	.name = "LDO_REG5",
b8074eba	232	.supply_name = "vcc9",
2cd64ae3 CZ	233	.id = RK808_ID_LDO5,
	234	.ops = &rk808_reg_ops,
	235	.type = REGULATOR_VOLTAGE,
	236	.n_voltages = 17,
	237	.linear_ranges = rk808_ldo_voltage_ranges,
	238	.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
	239	.vsel_reg = RK808_LDO5_ON_VSEL_REG,
	240	.vsel_mask = RK808_LDO_VSEL_MASK,
	241	.enable_reg = RK808_LDO_EN_REG,
	242	.enable_mask = BIT(4),
	243	.owner = THIS_MODULE,
	244	}, {
	245	.name = "LDO_REG6",
b8074eba	246	.supply_name = "vcc10",
2cd64ae3 CZ	247	.id = RK808_ID_LDO6,
	248	.ops = &rk808_reg_ops,
	249	.type = REGULATOR_VOLTAGE,
	250	.n_voltages = 18,
	251	.linear_ranges = rk808_ldo6_voltage_ranges,
	252	.n_linear_ranges = ARRAY_SIZE(rk808_ldo6_voltage_ranges),
	253	.vsel_reg = RK808_LDO6_ON_VSEL_REG,
	254	.vsel_mask = RK808_LDO_VSEL_MASK,
	255	.enable_reg = RK808_LDO_EN_REG,
	256	.enable_mask = BIT(5),
	257	.owner = THIS_MODULE,
	258	}, {
	259	.name = "LDO_REG7",
b8074eba	260	.supply_name = "vcc7",
2cd64ae3 CZ	261	.id = RK808_ID_LDO7,
	262	.ops = &rk808_reg_ops,
	263	.type = REGULATOR_VOLTAGE,
	264	.n_voltages = 18,
	265	.linear_ranges = rk808_ldo6_voltage_ranges,
	266	.n_linear_ranges = ARRAY_SIZE(rk808_ldo6_voltage_ranges),
	267	.vsel_reg = RK808_LDO7_ON_VSEL_REG,
	268	.vsel_mask = RK808_LDO_VSEL_MASK,
	269	.enable_reg = RK808_LDO_EN_REG,
	270	.enable_mask = BIT(6),
	271	.owner = THIS_MODULE,
	272	}, {
	273	.name = "LDO_REG8",
b8074eba	274	.supply_name = "vcc11",
2cd64ae3 CZ	275	.id = RK808_ID_LDO8,
	276	.ops = &rk808_reg_ops,
	277	.type = REGULATOR_VOLTAGE,
	278	.n_voltages = 17,
	279	.linear_ranges = rk808_ldo_voltage_ranges,
	280	.n_linear_ranges = ARRAY_SIZE(rk808_ldo_voltage_ranges),
	281	.vsel_reg = RK808_LDO8_ON_VSEL_REG,
	282	.vsel_mask = RK808_LDO_VSEL_MASK,
	283	.enable_reg = RK808_LDO_EN_REG,
	284	.enable_mask = BIT(7),
	285	.owner = THIS_MODULE,
	286	}, {
	287	.name = "SWITCH_REG1",
b8074eba	288	.supply_name = "vcc8",
2cd64ae3 CZ	289	.id = RK808_ID_SWITCH1,
	290	.ops = &rk808_switch_ops,
	291	.type = REGULATOR_VOLTAGE,
	292	.enable_reg = RK808_DCDC_EN_REG,
	293	.enable_mask = BIT(5),
	294	.owner = THIS_MODULE,
	295	}, {
	296	.name = "SWITCH_REG2",
b8074eba	297	.supply_name = "vcc12",
2cd64ae3 CZ	298	.id = RK808_ID_SWITCH2,
	299	.ops = &rk808_switch_ops,
	300	.type = REGULATOR_VOLTAGE,
	301	.enable_reg = RK808_DCDC_EN_REG,
	302	.enable_mask = BIT(6),
	303	.owner = THIS_MODULE,
	304	},
	305	};
	306
	307	static struct of_regulator_match rk808_reg_matches[] = {
	308	[RK808_ID_DCDC1] = { .name = "DCDC_REG1" },
	309	[RK808_ID_DCDC2] = { .name = "DCDC_REG2" },
	310	[RK808_ID_DCDC3] = { .name = "DCDC_REG3" },
	311	[RK808_ID_DCDC4] = { .name = "DCDC_REG4" },
	312	[RK808_ID_LDO1] = { .name = "LDO_REG1" },
	313	[RK808_ID_LDO2] = { .name = "LDO_REG2" },
	314	[RK808_ID_LDO3] = { .name = "LDO_REG3" },
	315	[RK808_ID_LDO4] = { .name = "LDO_REG4" },
	316	[RK808_ID_LDO5] = { .name = "LDO_REG5" },
	317	[RK808_ID_LDO6] = { .name = "LDO_REG6" },
	318	[RK808_ID_LDO7] = { .name = "LDO_REG7" },
	319	[RK808_ID_LDO8] = { .name = "LDO_REG8" },
	320	[RK808_ID_SWITCH1] = { .name = "SWITCH_REG1" },
	321	[RK808_ID_SWITCH2] = { .name = "SWITCH_REG2" },
	322	};
	323
2cd64ae3 CZ	324	static int rk808_regulator_probe(struct platform_device *pdev)
	325	{
	326	struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
d76c333e	327	struct i2c_client *client = rk808->i2c;
571a4010	328	struct device_node *reg_np;
462004f1	329	struct regulator_config config = {};
2cd64ae3	330	struct regulator_dev *rk808_rdev;
571a4010	331	int ret, i;
2cd64ae3	332
571a4010 CZ	333	reg_np = of_get_child_by_name(client->dev.of_node, "regulators");
	334	if (!reg_np)
	335	return -ENXIO;
2cd64ae3	336
1ed3f8ce	337	ret = of_regulator_match(&pdev->dev, reg_np, rk808_reg_matches,
571a4010	338	RK808_NUM_REGULATORS);
1ed3f8ce	339	of_node_put(reg_np);
571a4010	340	if (ret < 0)
2cd64ae3 CZ	341	return ret;
2cd64ae3 CZ	342
2cd64ae3 CZ	343	/* Instantiate the regulators */
2cd64ae3 CZ	344	for (i = 0; i < RK808_NUM_REGULATORS; i++) {
571a4010 CZ	345	if (!rk808_reg_matches[i].init_data \|\|
571a4010 CZ	346	!rk808_reg_matches[i].of_node)
2cd64ae3 CZ	347	continue;
2cd64ae3 CZ	348
d76c333e	349	config.dev = &client->dev;
2cd64ae3 CZ	350	config.driver_data = rk808;
2cd64ae3 CZ	351	config.regmap = rk808->regmap;
571a4010 CZ	352	config.of_node = rk808_reg_matches[i].of_node;
571a4010 CZ	353	config.init_data = rk808_reg_matches[i].init_data;
2cd64ae3 CZ	354
	355	rk808_rdev = devm_regulator_register(&pdev->dev,
	356	&rk808_reg[i], &config);
	357	if (IS_ERR(rk808_rdev)) {
d76c333e	358	dev_err(&client->dev,
2cd64ae3 CZ	359	"failed to register %d regulator\n", i);
	360	return PTR_ERR(rk808_rdev);
	361	}
2cd64ae3	362	}
571a4010	363
2cd64ae3 CZ	364	return 0;
	365	}
	366
	367	static struct platform_driver rk808_regulator_driver = {
	368	.probe = rk808_regulator_probe,
	369	.driver = {
	370	.name = "rk808-regulator",
	371	.owner = THIS_MODULE,
	372	},
	373	};
	374
	375	module_platform_driver(rk808_regulator_driver);
	376
	377	MODULE_DESCRIPTION("regulator driver for the rk808 series PMICs");
	378	MODULE_AUTHOR("Chris Zhong<zyw@rock-chips.com>");
571a4010	379	MODULE_AUTHOR("Zhang Qing<zhangqing@rock-chips.com>");
2cd64ae3 CZ	380	MODULE_LICENSE("GPL");
2cd64ae3 CZ	381	MODULE_ALIAS("platform:rk808-regulator");