Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2)  * Regulator driver for mp8865
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * This program is free software; you can redistribute it and/or modify it
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * under the terms and conditions of the GNU General Public License,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * version 2, as published by the Free Software Foundation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  * This program is distributed in the hope it will be useful, but WITHOUT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9)  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10)  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11)  * for  more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/i2c.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/of_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/regulator/driver.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) #include <linux/regulator/of_regulator.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) #define MP8865_MAX_VSEL			0x7f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #define VOL_MIN_IDX			0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) #define VOL_MAX_IDX			0x7f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #define MP8865_ENABLE_TIME		150
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) /* Register definitions */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) #define MP8865_VOUT_REG			0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #define MP8865_SYSCNTL_REG		1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #define MP8865_ID_REG			2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #define MP8865_STATUS_REG		3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) #define MP8865_MAX_REG			4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) #define MP8865_VOUT_MASK		0x7f
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) #define MP8865_VBOOT_MASK		0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) #define MP8865_ENABLE			0x80
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) #define MP8865_GO_BIT			0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) #define MP8865_SLEW_RATE_MASK		0x38
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) #define MP8865_SWITCH_FRE_MASK		0x06
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) #define MP8865_PFM_MODE			0X01
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) /* mp8865 chip information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) struct mp8865_chip {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	struct regulator_desc desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	struct regulator_dev  *rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	struct regmap *regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) struct mp8865_platform_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	struct regulator_init_data *mp8865_init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 	struct device_node *of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) static const struct linear_range mp8865_voltage_ranges[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	REGULATOR_LINEAR_RANGE(600000, VOL_MIN_IDX, VOL_MAX_IDX, 10000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) static int mp8865_set_voltage(struct regulator_dev *rdev, unsigned sel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 	ret = regmap_update_bits(rdev->regmap, MP8865_SYSCNTL_REG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 				 MP8865_GO_BIT, MP8865_GO_BIT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	sel <<= ffs(rdev->desc->vsel_mask) - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	return regmap_write(rdev->regmap, MP8865_VOUT_REG, sel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) static bool is_write_reg(struct device *dev, unsigned int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 	return (reg < MP8865_ID_REG) ? true : false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) static bool is_volatile_reg(struct device *dev, unsigned int reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	return (reg == MP8865_STATUS_REG) ? true : false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) static const struct regmap_config mp8865_regmap_config = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	.reg_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	.val_bits = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	.writeable_reg = is_write_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	.volatile_reg = is_volatile_reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	.max_register = MP8865_MAX_REG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	.cache_type = REGCACHE_RBTREE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) static struct regulator_ops mp8865_dcdc_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	.list_voltage = regulator_list_voltage_linear_range,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	.map_voltage = regulator_map_voltage_linear_range,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	.set_voltage_sel = mp8865_set_voltage,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	.set_voltage_time_sel = regulator_set_voltage_time_sel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	.enable = regulator_enable_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	.disable = regulator_disable_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	.is_enabled = regulator_is_enabled_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) static const struct of_device_id mp8865_of_match[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	{.compatible =  "mps,mp8865", .data = (void *)0},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	{},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) MODULE_DEVICE_TABLE(of, mp8865_of_match);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static struct of_regulator_match mp8865_matches = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	.name = "mp8865_dcdc1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	.driver_data = (void *)0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static struct mp8865_platform_data *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	mp8865_parse_dt(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 			struct of_regulator_match **mp8865_reg_matches)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	struct mp8865_platform_data *pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	struct device_node *np, *regulators;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	pdata = devm_kzalloc(&client->dev, sizeof(struct mp8865_platform_data),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 			     GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	if (!pdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 	np = of_node_get(client->dev.of_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	regulators = of_find_node_by_name(np, "regulators");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	if (!regulators) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		dev_err(&client->dev, "regulator node not found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	ret = of_regulator_match(&client->dev, regulators, &mp8865_matches, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		dev_err(&client->dev, "Error parsing regulators init data\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 		return NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	*mp8865_reg_matches = &mp8865_matches;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	of_node_put(regulators);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	pdata->mp8865_init_data = mp8865_matches.init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	pdata->of_node = mp8865_matches.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	return pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) static int mp8865_probe(struct i2c_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 			const struct i2c_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	struct mp8865_chip *mp8865;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	struct mp8865_platform_data *pdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	struct of_regulator_match *mp8865_reg_matches = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	struct regulator_dev *sy_rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 	struct regulator_config config;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 	struct regulator_desc *rdesc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	mp8865 = devm_kzalloc(&client->dev, sizeof(struct mp8865_chip),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 			      GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	if (!mp8865)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	pdata = dev_get_platdata(&client->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	if (!pdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 		pdata = mp8865_parse_dt(client, &mp8865_reg_matches);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	if (!pdata || !pdata->mp8865_init_data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 		dev_err(&client->dev, "Platform data not found!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	mp8865->dev = &client->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	mp8865->regmap = devm_regmap_init_i2c(client, &mp8865_regmap_config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	if (IS_ERR(mp8865->regmap)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 		dev_err(&client->dev, "Failed to allocate regmap!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 		return PTR_ERR(mp8865->regmap);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	i2c_set_clientdata(client, mp8865);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 	config.dev = mp8865->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	config.driver_data = mp8865;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	config.init_data = pdata->mp8865_init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 	config.of_node = pdata->of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	config.regmap = mp8865->regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	rdesc = &mp8865->desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	rdesc->name = "mp8865_dcdc1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	rdesc->id = 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	rdesc->ops = &mp8865_dcdc_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	rdesc->n_voltages = MP8865_MAX_VSEL + 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	rdesc->linear_ranges = mp8865_voltage_ranges,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	rdesc->n_linear_ranges = ARRAY_SIZE(mp8865_voltage_ranges),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	rdesc->vsel_reg = MP8865_VOUT_REG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	rdesc->vsel_mask = MP8865_VOUT_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	rdesc->enable_reg = MP8865_SYSCNTL_REG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	rdesc->enable_mask = MP8865_ENABLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	rdesc->enable_time = MP8865_ENABLE_TIME;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	rdesc->type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	rdesc->owner = THIS_MODULE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	/* set slew_rate 16mV/uS */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	ret = regmap_update_bits(mp8865->regmap, MP8865_SYSCNTL_REG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 				 MP8865_SLEW_RATE_MASK, 0x10);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 		dev_err(mp8865->dev, "failed to set slew_rate\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	/* set switch_frequency 1.1MHz */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	ret = regmap_update_bits(mp8865->regmap, MP8865_SYSCNTL_REG,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 				 MP8865_SWITCH_FRE_MASK, 0x40);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 		dev_err(mp8865->dev, "failed to set switch_frequency\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	sy_rdev = devm_regulator_register(mp8865->dev, &mp8865->desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 					  &config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	if (IS_ERR(sy_rdev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 		dev_err(mp8865->dev, "failed to register regulator\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 		return PTR_ERR(sy_rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	dev_info(mp8865->dev, "mp8865 register successful\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) static const struct i2c_device_id mp8865_id[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	{ .name = "mps,mp8865", },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	{  },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) MODULE_DEVICE_TABLE(i2c, mp8865_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) static struct i2c_driver mp8865_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	.driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		.name = "mp8865",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 		.of_match_table = of_match_ptr(mp8865_of_match),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 		.owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 	.probe    = mp8865_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	.id_table = mp8865_id,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) module_i2c_driver(mp8865_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) MODULE_AUTHOR("Zain Wang <zain.wang@rock-chips.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) MODULE_DESCRIPTION("mp8865 voltage regulator driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) MODULE_LICENSE("GPL v2");