Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * AS3711 PMIC regulator driver, using DCDC Step Down and LDO supplies
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  * Copyright (C) 2012 Renesas Electronics Corporation
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Author: Guennadi Liakhovetski, <g.liakhovetski@gmx.de>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/mfd/as3711.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/regmap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/regulator/driver.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/regulator/of_regulator.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21)  * The regulator API supports 4 modes of operataion: FAST, NORMAL, IDLE and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22)  * STANDBY. We map them in the following way to AS3711 SD1-4 DCDC modes:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23)  * FAST:	sdX_fast=1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24)  * NORMAL:	low_noise=1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25)  * IDLE:	low_noise=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) static int as3711_set_mode_sd(struct regulator_dev *rdev, unsigned int mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	unsigned int fast_bit = rdev->desc->enable_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 		low_noise_bit = fast_bit << 4;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	switch (mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	case REGULATOR_MODE_FAST:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 		val = fast_bit | low_noise_bit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	case REGULATOR_MODE_NORMAL:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 		val = low_noise_bit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	case REGULATOR_MODE_IDLE:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 		val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 		return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	return regmap_update_bits(rdev->regmap, AS3711_SD_CONTROL_1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 				  low_noise_bit | fast_bit, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) static unsigned int as3711_get_mode_sd(struct regulator_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	unsigned int fast_bit = rdev->desc->enable_mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 		low_noise_bit = fast_bit << 4, mask = fast_bit | low_noise_bit;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	unsigned int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	int ret = regmap_read(rdev->regmap, AS3711_SD_CONTROL_1, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	if ((val & mask) == mask)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) 		return REGULATOR_MODE_FAST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 	if ((val & mask) == low_noise_bit)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 		return REGULATOR_MODE_NORMAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	if (!(val & mask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 		return REGULATOR_MODE_IDLE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) static const struct regulator_ops as3711_sd_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	.is_enabled		= regulator_is_enabled_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 	.enable			= regulator_enable_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	.disable		= regulator_disable_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	.list_voltage		= regulator_list_voltage_linear_range,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	.map_voltage		= regulator_map_voltage_linear_range,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	.get_mode		= as3711_get_mode_sd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	.set_mode		= as3711_set_mode_sd,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) static const struct regulator_ops as3711_aldo_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	.is_enabled		= regulator_is_enabled_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	.enable			= regulator_enable_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	.disable		= regulator_disable_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
^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) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) static const struct regulator_ops as3711_dldo_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	.is_enabled		= regulator_is_enabled_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	.enable			= regulator_enable_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	.disable		= regulator_disable_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	.list_voltage		= regulator_list_voltage_linear_range,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	.map_voltage		= regulator_map_voltage_linear_range,
^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) static const struct linear_range as3711_sd_ranges[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	REGULATOR_LINEAR_RANGE(612500, 0x1, 0x40, 12500),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	REGULATOR_LINEAR_RANGE(1425000, 0x41, 0x70, 25000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	REGULATOR_LINEAR_RANGE(2650000, 0x71, 0x7f, 50000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) static const struct linear_range as3711_aldo_ranges[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	REGULATOR_LINEAR_RANGE(1200000, 0, 0xf, 50000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	REGULATOR_LINEAR_RANGE(1800000, 0x10, 0x1f, 100000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static const struct linear_range as3711_dldo_ranges[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	REGULATOR_LINEAR_RANGE(900000, 0, 0x10, 50000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	REGULATOR_LINEAR_RANGE(1750000, 0x20, 0x3f, 50000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) #define AS3711_REG(_id, _en_reg, _en_bit, _vmask, _sfx)			   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	[AS3711_REGULATOR_ ## _id] = {					   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 		.name = "as3711-regulator-" # _id,			   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 		.id = AS3711_REGULATOR_ ## _id,				   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 		.n_voltages = (_vmask + 1),				   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 		.ops = &as3711_ ## _sfx ## _ops,			   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 		.type = REGULATOR_VOLTAGE,				   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 		.owner = THIS_MODULE,					   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 		.vsel_reg = AS3711_ ## _id ## _VOLTAGE,			   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 		.vsel_mask = _vmask,					   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 		.enable_reg = AS3711_ ## _en_reg,			   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 		.enable_mask = BIT(_en_bit),				   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 		.linear_ranges = as3711_ ## _sfx ## _ranges,		   \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 		.n_linear_ranges = ARRAY_SIZE(as3711_ ## _sfx ## _ranges), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) static const struct regulator_desc as3711_reg_desc[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	AS3711_REG(SD_1, SD_CONTROL, 0, 0x7f, sd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	AS3711_REG(SD_2, SD_CONTROL, 1, 0x7f, sd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	AS3711_REG(SD_3, SD_CONTROL, 2, 0x7f, sd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 	AS3711_REG(SD_4, SD_CONTROL, 3, 0x7f, sd),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 	AS3711_REG(LDO_1, LDO_1_VOLTAGE, 7, 0x1f, aldo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	AS3711_REG(LDO_2, LDO_2_VOLTAGE, 7, 0x1f, aldo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	AS3711_REG(LDO_3, LDO_3_VOLTAGE, 7, 0x3f, dldo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 	AS3711_REG(LDO_4, LDO_4_VOLTAGE, 7, 0x3f, dldo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	AS3711_REG(LDO_5, LDO_5_VOLTAGE, 7, 0x3f, dldo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	AS3711_REG(LDO_6, LDO_6_VOLTAGE, 7, 0x3f, dldo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	AS3711_REG(LDO_7, LDO_7_VOLTAGE, 7, 0x3f, dldo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	AS3711_REG(LDO_8, LDO_8_VOLTAGE, 7, 0x3f, dldo),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	/* StepUp output voltage depends on supplying regulator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #define AS3711_REGULATOR_NUM ARRAY_SIZE(as3711_reg_desc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) static struct of_regulator_match
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) as3711_regulator_matches[AS3711_REGULATOR_NUM] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	[AS3711_REGULATOR_SD_1] = { .name = "sd1" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	[AS3711_REGULATOR_SD_2] = { .name = "sd2" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	[AS3711_REGULATOR_SD_3] = { .name = "sd3" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	[AS3711_REGULATOR_SD_4] = { .name = "sd4" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	[AS3711_REGULATOR_LDO_1] = { .name = "ldo1" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	[AS3711_REGULATOR_LDO_2] = { .name = "ldo2" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	[AS3711_REGULATOR_LDO_3] = { .name = "ldo3" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 	[AS3711_REGULATOR_LDO_4] = { .name = "ldo4" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	[AS3711_REGULATOR_LDO_5] = { .name = "ldo5" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	[AS3711_REGULATOR_LDO_6] = { .name = "ldo6" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	[AS3711_REGULATOR_LDO_7] = { .name = "ldo7" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	[AS3711_REGULATOR_LDO_8] = { .name = "ldo8" },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) static int as3711_regulator_parse_dt(struct device *dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 				struct device_node **of_node, const int count)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	struct as3711_regulator_pdata *pdata = dev_get_platdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	struct device_node *regulators =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 		of_get_child_by_name(dev->parent->of_node, "regulators");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	struct of_regulator_match *match;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 	int ret, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	if (!regulators) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 		dev_err(dev, "regulator node not found\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	ret = of_regulator_match(dev->parent, regulators,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 				 as3711_regulator_matches, count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	of_node_put(regulators);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 		dev_err(dev, "Error parsing regulator init data: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 	for (i = 0, match = as3711_regulator_matches; i < count; i++, match++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 		if (match->of_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 			pdata->init_data[i] = match->init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 			of_node[i] = match->of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) static int as3711_regulator_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 	struct as3711_regulator_pdata *pdata = dev_get_platdata(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 	struct as3711 *as3711 = dev_get_drvdata(pdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	struct regulator_config config = {.dev = &pdev->dev,};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	struct device_node *of_node[AS3711_REGULATOR_NUM] = {};
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	struct regulator_dev *rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 	int id;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	if (!pdata) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 		dev_err(&pdev->dev, "No platform data...\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 	if (pdev->dev.parent->of_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 		ret = as3711_regulator_parse_dt(&pdev->dev, of_node, AS3711_REGULATOR_NUM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 		if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 			dev_err(&pdev->dev, "DT parsing failed: %d\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 			return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	for (id = 0; id < AS3711_REGULATOR_NUM; id++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 		config.init_data = pdata->init_data[id];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 		config.regmap = as3711->regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 		config.of_node = of_node[id];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 		rdev = devm_regulator_register(&pdev->dev, &as3711_reg_desc[id],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 					       &config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 		if (IS_ERR(rdev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 			dev_err(&pdev->dev, "Failed to register regulator %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 				as3711_reg_desc[id].name);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 			return PTR_ERR(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) static struct platform_driver as3711_regulator_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	.driver	= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 		.name	= "as3711-regulator",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 	.probe		= as3711_regulator_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) static int __init as3711_regulator_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 	return platform_driver_register(&as3711_regulator_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) subsys_initcall(as3711_regulator_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) static void __exit as3711_regulator_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	platform_driver_unregister(&as3711_regulator_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) module_exit(as3711_regulator_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) MODULE_AUTHOR("Guennadi Liakhovetski <g.liakhovetski@gmx.de>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) MODULE_DESCRIPTION("AS3711 regulator driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) MODULE_ALIAS("platform:as3711-regulator");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) MODULE_LICENSE("GPL v2");