^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * drivers/regulator/ab3100.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2008-2009 ST-Ericsson AB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Low-level control of the AB3100 IC Low Dropout (LDO)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * regulators, external regulator and buck converter
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * Author: Mattias Wallin <mattias.wallin@stericsson.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Author: Linus Walleij <linus.walleij@stericsson.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^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/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/err.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/mfd/ab3100.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/mfd/abx500.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/of.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/regulator/of_regulator.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) /* LDO registers and some handy masking definitions for AB3100 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #define AB3100_LDO_A 0x40
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define AB3100_LDO_C 0x41
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define AB3100_LDO_D 0x42
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define AB3100_LDO_E 0x43
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define AB3100_LDO_E_SLEEP 0x44
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define AB3100_LDO_F 0x45
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define AB3100_LDO_G 0x46
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define AB3100_LDO_H 0x47
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define AB3100_LDO_H_SLEEP_MODE 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define AB3100_LDO_H_SLEEP_EN 2
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define AB3100_LDO_ON 4
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define AB3100_LDO_H_VSEL_AC 5
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define AB3100_LDO_K 0x48
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define AB3100_LDO_EXT 0x49
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define AB3100_BUCK 0x4A
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define AB3100_BUCK_SLEEP 0x4B
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define AB3100_REG_ON_MASK 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) * struct ab3100_regulator
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) * A struct passed around the individual regulator functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) * @platform_device: platform device holding this regulator
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) * @dev: handle to the device
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) * @plfdata: AB3100 platform data passed in at probe time
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) * @regreg: regulator register number in the AB3100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) struct ab3100_regulator {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) struct ab3100_platform_data *plfdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) u8 regreg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) /* The order in which registers are initialized */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static const u8 ab3100_reg_init_order[AB3100_NUM_REGULATORS+2] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) AB3100_LDO_A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) AB3100_LDO_C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) AB3100_LDO_E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) AB3100_LDO_E_SLEEP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) AB3100_LDO_F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) AB3100_LDO_G,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) AB3100_LDO_H,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) AB3100_LDO_K,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) AB3100_LDO_EXT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) AB3100_BUCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) AB3100_BUCK_SLEEP,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) AB3100_LDO_D,
^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) /* Preset (hardware defined) voltages for these regulators */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) #define LDO_A_VOLTAGE 2750000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) #define LDO_C_VOLTAGE 2650000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) #define LDO_D_VOLTAGE 2650000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) static const unsigned int ldo_e_buck_typ_voltages[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) 1800000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) 1400000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) 1300000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) 1200000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) 1100000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) 1050000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) 900000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static const unsigned int ldo_f_typ_voltages[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) 1800000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) 1400000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) 1300000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) 1200000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) 1100000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) 1050000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) 2500000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) 2650000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) static const unsigned int ldo_g_typ_voltages[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) 2850000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 2750000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 1800000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 1500000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) static const unsigned int ldo_h_typ_voltages[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 2750000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 1800000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 1500000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 1200000,
^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 unsigned int ldo_k_typ_voltages[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 2750000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 1800000,
^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)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) /* The regulator devices */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) static struct ab3100_regulator
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) ab3100_regulators[AB3100_NUM_REGULATORS] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) .regreg = AB3100_LDO_A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) .regreg = AB3100_LDO_C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) .regreg = AB3100_LDO_D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) .regreg = AB3100_LDO_E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) .regreg = AB3100_LDO_F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) .regreg = AB3100_LDO_G,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) .regreg = AB3100_LDO_H,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) .regreg = AB3100_LDO_K,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) .regreg = AB3100_LDO_EXT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) /* No voltages for the external regulator */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) .regreg = AB3100_BUCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) },
^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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) * General functions for enable, disable and is_enabled used for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) * LDO: A,C,E,F,G,H,K,EXT and BUCK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) static int ab3100_enable_regulator(struct regulator_dev *reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) struct ab3100_regulator *abreg = rdev_get_drvdata(reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) u8 regval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) err = abx500_get_register_interruptible(abreg->dev, 0, abreg->regreg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) ®val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) dev_warn(®->dev, "failed to get regid %d value\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) abreg->regreg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) return err;
^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) /* The regulator is already on, no reason to go further */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) if (regval & AB3100_REG_ON_MASK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) regval |= AB3100_REG_ON_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) err = abx500_set_register_interruptible(abreg->dev, 0, abreg->regreg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) regval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) dev_warn(®->dev, "failed to set regid %d value\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) abreg->regreg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return err;
^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) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) static int ab3100_disable_regulator(struct regulator_dev *reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) struct ab3100_regulator *abreg = rdev_get_drvdata(reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) u8 regval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) * LDO D is a special regulator. When it is disabled, the entire
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) * system is shut down. So this is handled specially.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) pr_info("Called ab3100_disable_regulator\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) if (abreg->regreg == AB3100_LDO_D) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) dev_info(®->dev, "disabling LDO D - shut down system\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) /* Setting LDO D to 0x00 cuts the power to the SoC */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) return abx500_set_register_interruptible(abreg->dev, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) AB3100_LDO_D, 0x00U);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) * All other regulators are handled here
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) err = abx500_get_register_interruptible(abreg->dev, 0, abreg->regreg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) ®val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) dev_err(®->dev, "unable to get register 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) abreg->regreg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) regval &= ~AB3100_REG_ON_MASK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) return abx500_set_register_interruptible(abreg->dev, 0, abreg->regreg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) regval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) static int ab3100_is_enabled_regulator(struct regulator_dev *reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct ab3100_regulator *abreg = rdev_get_drvdata(reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) u8 regval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) err = abx500_get_register_interruptible(abreg->dev, 0, abreg->regreg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) ®val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) dev_err(®->dev, "unable to get register 0x%x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) abreg->regreg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) return regval & AB3100_REG_ON_MASK;
^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) static int ab3100_get_voltage_regulator(struct regulator_dev *reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) struct ab3100_regulator *abreg = rdev_get_drvdata(reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) u8 regval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) * For variable types, read out setting and index into
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) * supplied voltage list.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) err = abx500_get_register_interruptible(abreg->dev, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) abreg->regreg, ®val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) dev_warn(®->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) "failed to get regulator value in register %02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) abreg->regreg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) /* The 3 highest bits index voltages */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) regval &= 0xE0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) regval >>= 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) if (regval >= reg->desc->n_voltages) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) dev_err(®->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) "regulator register %02x contains an illegal voltage setting\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) abreg->regreg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) return reg->desc->volt_table[regval];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) static int ab3100_set_voltage_regulator_sel(struct regulator_dev *reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) unsigned selector)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) struct ab3100_regulator *abreg = rdev_get_drvdata(reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) u8 regval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) err = abx500_get_register_interruptible(abreg->dev, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) abreg->regreg, ®val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) dev_warn(®->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) "failed to get regulator register %02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) abreg->regreg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) /* The highest three bits control the variable regulators */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) regval &= ~0xE0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) regval |= (selector << 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) err = abx500_set_register_interruptible(abreg->dev, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) abreg->regreg, regval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) dev_warn(®->dev, "failed to set regulator register %02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) abreg->regreg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) static int ab3100_set_suspend_voltage_regulator(struct regulator_dev *reg,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) int uV)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) struct ab3100_regulator *abreg = rdev_get_drvdata(reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) u8 regval;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) int bestindex;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) u8 targetreg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) if (abreg->regreg == AB3100_LDO_E)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) targetreg = AB3100_LDO_E_SLEEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) else if (abreg->regreg == AB3100_BUCK)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) targetreg = AB3100_BUCK_SLEEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) /* LDO E and BUCK have special suspend voltages you can set */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) bestindex = regulator_map_voltage_iterate(reg, uV, uV);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) err = abx500_get_register_interruptible(abreg->dev, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) targetreg, ®val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) dev_warn(®->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) "failed to get regulator register %02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) targetreg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) /* The highest three bits control the variable regulators */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) regval &= ~0xE0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) regval |= (bestindex << 5);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) err = abx500_set_register_interruptible(abreg->dev, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) targetreg, regval);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) dev_warn(®->dev, "failed to set regulator register %02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) abreg->regreg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) return err;
^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) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) * The external regulator can just define a fixed voltage.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) static int ab3100_get_voltage_regulator_external(struct regulator_dev *reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) struct ab3100_regulator *abreg = rdev_get_drvdata(reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) if (abreg->plfdata)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) return abreg->plfdata->external_voltage;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) /* TODO: encode external voltage into device tree */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) static const struct regulator_ops regulator_ops_fixed = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) .enable = ab3100_enable_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) .disable = ab3100_disable_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) .is_enabled = ab3100_is_enabled_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) static const struct regulator_ops regulator_ops_variable = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) .enable = ab3100_enable_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) .disable = ab3100_disable_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) .is_enabled = ab3100_is_enabled_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) .get_voltage = ab3100_get_voltage_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) .set_voltage_sel = ab3100_set_voltage_regulator_sel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) .list_voltage = regulator_list_voltage_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) static const struct regulator_ops regulator_ops_variable_sleepable = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) .enable = ab3100_enable_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) .disable = ab3100_disable_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) .is_enabled = ab3100_is_enabled_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) .get_voltage = ab3100_get_voltage_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) .set_voltage_sel = ab3100_set_voltage_regulator_sel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) .set_suspend_voltage = ab3100_set_suspend_voltage_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) .list_voltage = regulator_list_voltage_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) * LDO EXT is an external regulator so it is really
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) * not possible to set any voltage locally here, AB3100
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) * is an on/off switch plain an simple. The external
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) * voltage is defined in the board set-up if any.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) static const struct regulator_ops regulator_ops_external = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) .enable = ab3100_enable_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) .disable = ab3100_disable_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) .is_enabled = ab3100_is_enabled_regulator,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) .get_voltage = ab3100_get_voltage_regulator_external,
^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 const struct regulator_desc
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) ab3100_regulator_desc[AB3100_NUM_REGULATORS] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) .name = "LDO_A",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) .id = AB3100_LDO_A,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) .ops = ®ulator_ops_fixed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) .n_voltages = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) .fixed_uV = LDO_A_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) .enable_time = 200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) .name = "LDO_C",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) .id = AB3100_LDO_C,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) .ops = ®ulator_ops_fixed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) .n_voltages = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) .fixed_uV = LDO_C_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) .enable_time = 200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) .name = "LDO_D",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) .id = AB3100_LDO_D,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) .ops = ®ulator_ops_fixed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) .n_voltages = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) .fixed_uV = LDO_D_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) .enable_time = 200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) .name = "LDO_E",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) .id = AB3100_LDO_E,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) .ops = ®ulator_ops_variable_sleepable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) .n_voltages = ARRAY_SIZE(ldo_e_buck_typ_voltages),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) .volt_table = ldo_e_buck_typ_voltages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) .enable_time = 200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) .name = "LDO_F",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) .id = AB3100_LDO_F,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) .ops = ®ulator_ops_variable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) .n_voltages = ARRAY_SIZE(ldo_f_typ_voltages),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) .volt_table = ldo_f_typ_voltages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) .enable_time = 600,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) .name = "LDO_G",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) .id = AB3100_LDO_G,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) .ops = ®ulator_ops_variable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) .n_voltages = ARRAY_SIZE(ldo_g_typ_voltages),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) .volt_table = ldo_g_typ_voltages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) .enable_time = 400,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) .name = "LDO_H",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) .id = AB3100_LDO_H,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) .ops = ®ulator_ops_variable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) .n_voltages = ARRAY_SIZE(ldo_h_typ_voltages),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) .volt_table = ldo_h_typ_voltages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) .enable_time = 200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) .name = "LDO_K",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) .id = AB3100_LDO_K,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) .ops = ®ulator_ops_variable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) .n_voltages = ARRAY_SIZE(ldo_k_typ_voltages),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) .volt_table = ldo_k_typ_voltages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) .enable_time = 200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) .name = "LDO_EXT",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) .id = AB3100_LDO_EXT,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) .ops = ®ulator_ops_external,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) .name = "BUCK",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) .id = AB3100_BUCK,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) .ops = ®ulator_ops_variable_sleepable,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) .n_voltages = ARRAY_SIZE(ldo_e_buck_typ_voltages),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) .volt_table = ldo_e_buck_typ_voltages,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) .type = REGULATOR_VOLTAGE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) .enable_time = 1000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) static int ab3100_regulator_register(struct platform_device *pdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) struct ab3100_platform_data *plfdata,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) struct regulator_init_data *init_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) struct device_node *np,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) unsigned long id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) const struct regulator_desc *desc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) struct ab3100_regulator *reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) struct regulator_dev *rdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) struct regulator_config config = { };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) int err, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) for (i = 0; i < AB3100_NUM_REGULATORS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) desc = &ab3100_regulator_desc[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) if (desc->id == id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) if (desc->id != id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) /* Same index used for this array */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) reg = &ab3100_regulators[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) * Initialize per-regulator struct.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) * Inherit platform data, this comes down from the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) * i2c boarddata, from the machine. So if you want to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) * see what it looks like for a certain machine, go
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) * into the machine I2C setup.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) reg->dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) if (plfdata) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) reg->plfdata = plfdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) config.init_data = &plfdata->reg_constraints[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) } else if (np) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) config.of_node = np;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) config.init_data = init_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) config.dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) config.driver_data = reg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536) rdev = devm_regulator_register(&pdev->dev, desc, &config);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) if (IS_ERR(rdev)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) err = PTR_ERR(rdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) dev_err(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) "%s: failed to register regulator %s err %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) __func__, desc->name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) static struct of_regulator_match ab3100_regulator_matches[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) { .name = "ab3100_ldo_a", .driver_data = (void *) AB3100_LDO_A, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) { .name = "ab3100_ldo_c", .driver_data = (void *) AB3100_LDO_C, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) { .name = "ab3100_ldo_d", .driver_data = (void *) AB3100_LDO_D, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) { .name = "ab3100_ldo_e", .driver_data = (void *) AB3100_LDO_E, },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) { .name = "ab3100_ldo_f", .driver_data = (void *) AB3100_LDO_F },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) { .name = "ab3100_ldo_g", .driver_data = (void *) AB3100_LDO_G },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) { .name = "ab3100_ldo_h", .driver_data = (void *) AB3100_LDO_H },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) { .name = "ab3100_ldo_k", .driver_data = (void *) AB3100_LDO_K },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) { .name = "ab3100_ext", .driver_data = (void *) AB3100_LDO_EXT },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) { .name = "ab3100_buck", .driver_data = (void *) AB3100_BUCK },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) * Initial settings of ab3100 registers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) * Common for below LDO regulator settings are that
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) * bit 7-5 controls voltage. Bit 4 turns regulator ON(1) or OFF(0).
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) * Bit 3-2 controls sleep enable and bit 1-0 controls sleep mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) /* LDO_A 0x16: 2.75V, ON, SLEEP_A, SLEEP OFF GND */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) #define LDO_A_SETTING 0x16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) /* LDO_C 0x10: 2.65V, ON, SLEEP_A or B, SLEEP full power */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) #define LDO_C_SETTING 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) /* LDO_D 0x10: 2.65V, ON, sleep mode not used */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) #define LDO_D_SETTING 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) /* LDO_E 0x10: 1.8V, ON, SLEEP_A or B, SLEEP full power */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) #define LDO_E_SETTING 0x10
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) /* LDO_E SLEEP 0x00: 1.8V, not used, SLEEP_A or B, not used */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) #define LDO_E_SLEEP_SETTING 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) /* LDO_F 0xD0: 2.5V, ON, SLEEP_A or B, SLEEP full power */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) #define LDO_F_SETTING 0xD0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) /* LDO_G 0x00: 2.85V, OFF, SLEEP_A or B, SLEEP full power */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) #define LDO_G_SETTING 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) /* LDO_H 0x18: 2.75V, ON, SLEEP_B, SLEEP full power */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) #define LDO_H_SETTING 0x18
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584) /* LDO_K 0x00: 2.75V, OFF, SLEEP_A or B, SLEEP full power */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) #define LDO_K_SETTING 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) /* LDO_EXT 0x00: Voltage not set, OFF, not used, not used */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) #define LDO_EXT_SETTING 0x00
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) /* BUCK 0x7D: 1.2V, ON, SLEEP_A and B, SLEEP low power */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) #define BUCK_SETTING 0x7D
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) /* BUCK SLEEP 0xAC: 1.05V, Not used, SLEEP_A and B, Not used */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) #define BUCK_SLEEP_SETTING 0xAC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) static const u8 ab3100_reg_initvals[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) LDO_A_SETTING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) LDO_C_SETTING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) LDO_E_SETTING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) LDO_E_SLEEP_SETTING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) LDO_F_SETTING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) LDO_G_SETTING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) LDO_H_SETTING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) LDO_K_SETTING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) LDO_EXT_SETTING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) BUCK_SETTING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) BUCK_SLEEP_SETTING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) LDO_D_SETTING,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) ab3100_regulator_of_probe(struct platform_device *pdev, struct device_node *np)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) int err, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) * Set up the regulator registers, as was previously done with
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615) * platform data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) /* Set up regulators */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618) for (i = 0; i < ARRAY_SIZE(ab3100_reg_init_order); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) err = abx500_set_register_interruptible(&pdev->dev, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) ab3100_reg_init_order[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) ab3100_reg_initvals[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623) dev_err(&pdev->dev, "regulator initialization failed with error %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629) for (i = 0; i < ARRAY_SIZE(ab3100_regulator_matches); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) err = ab3100_regulator_register(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) pdev, NULL, ab3100_regulator_matches[i].init_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632) ab3100_regulator_matches[i].of_node,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) (unsigned long)ab3100_regulator_matches[i].driver_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) static int ab3100_regulators_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) struct ab3100_platform_data *plfdata = dev_get_platdata(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) struct device_node *np = pdev->dev.of_node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) int err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) u8 data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650) /* Check chip state */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) err = abx500_get_register_interruptible(&pdev->dev, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) AB3100_LDO_D, &data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) dev_err(&pdev->dev, "could not read initial status of LDO_D\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657) if (data & 0x10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) dev_notice(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) "chip is already in active mode (Warm start)\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) dev_notice(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) "chip is in inactive mode (Cold start)\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) if (np) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) err = of_regulator_match(&pdev->dev, np,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) ab3100_regulator_matches,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667) ARRAY_SIZE(ab3100_regulator_matches));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) if (err < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) dev_err(&pdev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) "Error parsing regulator init data: %d\n", err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) return ab3100_regulator_of_probe(pdev, np);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) /* Set up regulators */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) for (i = 0; i < ARRAY_SIZE(ab3100_reg_init_order); i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) err = abx500_set_register_interruptible(&pdev->dev, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) ab3100_reg_init_order[i],
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) plfdata->reg_initvals[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) if (err) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) dev_err(&pdev->dev, "regulator initialization failed with error %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) /* Register the regulators */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) for (i = 0; i < AB3100_NUM_REGULATORS; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) const struct regulator_desc *desc = &ab3100_regulator_desc[i];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) err = ab3100_regulator_register(pdev, plfdata, NULL, NULL,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) desc->id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701) static struct platform_driver ab3100_regulators_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) .name = "ab3100-regulators",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) .probe = ab3100_regulators_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) static __init int ab3100_regulators_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710) return platform_driver_register(&ab3100_regulators_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) static __exit void ab3100_regulators_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) platform_driver_unregister(&ab3100_regulators_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718) subsys_initcall(ab3100_regulators_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) module_exit(ab3100_regulators_exit);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721) MODULE_AUTHOR("Mattias Wallin <mattias.wallin@stericsson.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) MODULE_DESCRIPTION("AB3100 Regulator driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) MODULE_ALIAS("platform:ab3100-regulators");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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