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) // arizona-ldo1.c  --  LDO1 supply for Arizona devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) // Copyright 2012 Wolfson Microelectronics PLC.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) //
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) // Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/moduleparam.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/bitops.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <linux/gpio/consumer.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include <linux/regulator/driver.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) #include <linux/regulator/machine.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) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) #include <linux/regulator/arizona-ldo1.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) #include <linux/mfd/arizona/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) #include <linux/mfd/arizona/pdata.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) #include <linux/mfd/arizona/registers.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) #include <linux/mfd/madera/core.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) #include <linux/mfd/madera/pdata.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) #include <linux/mfd/madera/registers.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) struct arizona_ldo1 {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	struct regulator_dev *regulator;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	struct regmap *regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	struct regulator_consumer_supply supply;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	struct regulator_init_data init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	struct gpio_desc *ena_gpiod;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) static int arizona_ldo1_hc_set_voltage_sel(struct regulator_dev *rdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 					   unsigned sel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	struct regmap *regmap = rdev_get_regmap(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	unsigned int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	if (sel == rdev->desc->n_voltages - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		val = ARIZONA_LDO1_HI_PWR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	ret = regmap_update_bits(regmap, ARIZONA_LDO1_CONTROL_2,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 				 ARIZONA_LDO1_HI_PWR, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	if (ret != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	if (val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) 		return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 	return regulator_set_voltage_sel_regmap(rdev, sel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) static int arizona_ldo1_hc_get_voltage_sel(struct regulator_dev *rdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 	struct regmap *regmap = rdev_get_regmap(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 	unsigned int val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	ret = regmap_read(regmap, ARIZONA_LDO1_CONTROL_2, &val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	if (ret != 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	if (val & ARIZONA_LDO1_HI_PWR)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 		return rdev->desc->n_voltages - 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	return regulator_get_voltage_sel_regmap(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) static const struct regulator_ops arizona_ldo1_hc_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	.list_voltage = regulator_list_voltage_linear_range,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	.map_voltage = regulator_map_voltage_linear_range,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	.get_voltage_sel = arizona_ldo1_hc_get_voltage_sel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	.set_voltage_sel = arizona_ldo1_hc_set_voltage_sel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	.get_bypass = regulator_get_bypass_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	.set_bypass = regulator_set_bypass_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) static const struct linear_range arizona_ldo1_hc_ranges[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	REGULATOR_LINEAR_RANGE(900000, 0, 0x6, 50000),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	REGULATOR_LINEAR_RANGE(1800000, 0x7, 0x7, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) static const struct regulator_desc arizona_ldo1_hc = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	.name = "LDO1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	.supply_name = "LDOVDD",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	.type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	.ops = &arizona_ldo1_hc_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	.vsel_reg = ARIZONA_LDO1_CONTROL_1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	.vsel_mask = ARIZONA_LDO1_VSEL_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	.bypass_reg = ARIZONA_LDO1_CONTROL_1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 	.bypass_mask = ARIZONA_LDO1_BYPASS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	.linear_ranges = arizona_ldo1_hc_ranges,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 	.n_linear_ranges = ARRAY_SIZE(arizona_ldo1_hc_ranges),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	.n_voltages = 8,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	.enable_time = 1500,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	.ramp_delay = 24000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	.owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) static const struct regulator_ops arizona_ldo1_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	.list_voltage = regulator_list_voltage_linear,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	.map_voltage = regulator_map_voltage_linear,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	.set_voltage_sel = regulator_set_voltage_sel_regmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) static const struct regulator_desc arizona_ldo1 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	.name = "LDO1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	.supply_name = "LDOVDD",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	.type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	.ops = &arizona_ldo1_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 	.vsel_reg = ARIZONA_LDO1_CONTROL_1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	.vsel_mask = ARIZONA_LDO1_VSEL_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 	.min_uV = 900000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	.uV_step = 25000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	.n_voltages = 13,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	.enable_time = 500,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	.ramp_delay = 24000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	.owner = THIS_MODULE,
^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_init_data arizona_ldo1_dvfs = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	.constraints = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 		.min_uV = 1200000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 		.max_uV = 1800000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 		.valid_ops_mask = REGULATOR_CHANGE_STATUS |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) 				  REGULATOR_CHANGE_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	.num_consumer_supplies = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) static const struct regulator_init_data arizona_ldo1_default = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	.constraints = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	.num_consumer_supplies = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) static const struct regulator_init_data arizona_ldo1_wm5110 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	.constraints = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 		.min_uV = 1175000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 		.max_uV = 1200000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 		.valid_ops_mask = REGULATOR_CHANGE_STATUS |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 				  REGULATOR_CHANGE_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	.num_consumer_supplies = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) static const struct regulator_desc madera_ldo1 = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	.name = "LDO1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 	.supply_name = "LDOVDD",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) 	.type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	.ops = &arizona_ldo1_ops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	.vsel_reg = MADERA_LDO1_CONTROL_1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	.vsel_mask = MADERA_LDO1_VSEL_MASK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	.min_uV = 900000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	.uV_step = 25000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	.n_voltages = 13,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	.enable_time = 3000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	.owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) static const struct regulator_init_data madera_ldo1_default = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	.constraints = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 		.min_uV = 1200000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) 		.max_uV = 1200000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	.num_consumer_supplies = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) static int arizona_ldo1_of_get_pdata(struct arizona_ldo1_pdata *pdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 				     struct regulator_config *config,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 				     const struct regulator_desc *desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 				     bool *external_dcvdd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) 	struct arizona_ldo1 *ldo1 = config->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	struct device_node *np = config->dev->of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	struct device_node *init_node, *dcvdd_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	struct regulator_init_data *init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	init_node = of_get_child_by_name(np, "ldo1");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	dcvdd_node = of_parse_phandle(np, "DCVDD-supply", 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 	if (init_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 		config->of_node = init_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) 		init_data = of_get_regulator_init_data(config->dev, init_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 						       desc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 		if (init_data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 			init_data->consumer_supplies = &ldo1->supply;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 			init_data->num_consumer_supplies = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 			if (dcvdd_node && dcvdd_node != init_node)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 				*external_dcvdd = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 			pdata->init_data = init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	} else if (dcvdd_node) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 		*external_dcvdd = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) 	of_node_put(dcvdd_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	return 0;
^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) static int arizona_ldo1_common_init(struct platform_device *pdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 				    struct arizona_ldo1 *ldo1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 				    const struct regulator_desc *desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 				    struct arizona_ldo1_pdata *pdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 				    bool *external_dcvdd)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	struct device *parent_dev = pdev->dev.parent;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	struct regulator_config config = { };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	*external_dcvdd = false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 	ldo1->supply.supply = "DCVDD";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	ldo1->init_data.consumer_supplies = &ldo1->supply;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 	ldo1->supply.dev_name = dev_name(parent_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	config.dev = parent_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 	config.driver_data = ldo1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) 	config.regmap = ldo1->regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 	if (IS_ENABLED(CONFIG_OF)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) 		if (!dev_get_platdata(parent_dev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 			ret = arizona_ldo1_of_get_pdata(pdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 							&config, desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) 							external_dcvdd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 			if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) 				return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 		}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) 	/* We assume that high output = regulator off
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	 * Don't use devm, since we need to get against the parent device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	 * so clean up would happen at the wrong time
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) 	config.ena_gpiod = gpiod_get_optional(parent_dev, "wlf,ldoena",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) 				GPIOD_OUT_LOW | GPIOD_FLAGS_BIT_NONEXCLUSIVE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) 	if (IS_ERR(config.ena_gpiod))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) 		return PTR_ERR(config.ena_gpiod);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) 	ldo1->ena_gpiod = config.ena_gpiod;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) 	if (pdata->init_data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) 		config.init_data = pdata->init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) 	else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) 		config.init_data = &ldo1->init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) 	 * LDO1 can only be used to supply DCVDD so if it has no
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) 	 * consumers then DCVDD is supplied externally.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) 	if (config.init_data->num_consumer_supplies == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) 		*external_dcvdd = true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) 	ldo1->regulator = devm_regulator_register(&pdev->dev, desc, &config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) 	of_node_put(config.of_node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) 	if (IS_ERR(ldo1->regulator)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) 		ret = PTR_ERR(ldo1->regulator);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) 		dev_err(&pdev->dev, "Failed to register LDO1 supply: %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) 			ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) 	platform_set_drvdata(pdev, ldo1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) static int arizona_ldo1_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) 	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) 	struct arizona_ldo1 *ldo1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) 	const struct regulator_desc *desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) 	bool external_dcvdd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) 	ldo1 = devm_kzalloc(&pdev->dev, sizeof(*ldo1), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) 	if (!ldo1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) 	ldo1->regmap = arizona->regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) 	 * Since the chip usually supplies itself we provide some
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) 	 * default init_data for it.  This will be overridden with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) 	 * platform data if provided.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) 	switch (arizona->type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) 	case WM5102:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) 	case WM8997:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) 	case WM8998:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) 	case WM1814:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) 		desc = &arizona_ldo1_hc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) 		ldo1->init_data = arizona_ldo1_dvfs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) 	case WM5110:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) 	case WM8280:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) 		desc = &arizona_ldo1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) 		ldo1->init_data = arizona_ldo1_wm5110;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) 	default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) 		desc = &arizona_ldo1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) 		ldo1->init_data = arizona_ldo1_default;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) 	ret = arizona_ldo1_common_init(pdev, ldo1, desc,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) 				       &arizona->pdata.ldo1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) 				       &external_dcvdd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) 	if (ret == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) 		arizona->external_dcvdd = external_dcvdd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) 	return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) static int arizona_ldo1_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) 	struct arizona_ldo1 *ldo1 = platform_get_drvdata(pdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) 	if (ldo1->ena_gpiod)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) 		gpiod_put(ldo1->ena_gpiod);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) static int madera_ldo1_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) 	struct madera *madera = dev_get_drvdata(pdev->dev.parent);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) 	struct arizona_ldo1 *ldo1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) 	bool external_dcvdd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) 	int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) 	ldo1 = devm_kzalloc(&pdev->dev, sizeof(*ldo1), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) 	if (!ldo1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) 		return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) 	ldo1->regmap = madera->regmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) 	ldo1->init_data = madera_ldo1_default;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) 	ret = arizona_ldo1_common_init(pdev, ldo1, &madera_ldo1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) 				       &madera->pdata.ldo1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) 				       &external_dcvdd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) 	if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) 		return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) 	madera->internal_dcvdd = !external_dcvdd;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) static struct platform_driver arizona_ldo1_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) 	.probe = arizona_ldo1_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) 	.remove = arizona_ldo1_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) 	.driver		= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) 		.name	= "arizona-ldo1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) static struct platform_driver madera_ldo1_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) 	.probe = madera_ldo1_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) 	.remove = arizona_ldo1_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) 	.driver		= {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) 		.name	= "madera-ldo1",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) 	},
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) static struct platform_driver * const madera_ldo1_drivers[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) 	&arizona_ldo1_driver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) 	&madera_ldo1_driver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) static int __init arizona_ldo1_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) 	return platform_register_drivers(madera_ldo1_drivers,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) 					 ARRAY_SIZE(madera_ldo1_drivers));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) module_init(arizona_ldo1_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) static void __exit madera_ldo1_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) 	platform_unregister_drivers(madera_ldo1_drivers,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) 				    ARRAY_SIZE(madera_ldo1_drivers));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) module_exit(madera_ldo1_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) /* Module information */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) MODULE_DESCRIPTION("Arizona LDO1 driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) MODULE_ALIAS("platform:arizona-ldo1");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) MODULE_ALIAS("platform:madera-ldo1");