diff options
Diffstat (limited to 'drivers/regulator/palmas-regulator.c')
| -rw-r--r-- | drivers/regulator/palmas-regulator.c | 1644 |
1 files changed, 1644 insertions, 0 deletions
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c new file mode 100644 index 000000000..821761380 --- /dev/null +++ b/drivers/regulator/palmas-regulator.c @@ -0,0 +1,1644 @@ +/* + * Driver for Regulator part of Palmas PMIC Chips + * + * Copyright 2011-2013 Texas Instruments Inc. + * + * Author: Graeme Gregory <gg@slimlogic.co.uk> + * Author: Ian Lartey <ian@slimlogic.co.uk> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/init.h> +#include <linux/err.h> +#include <linux/platform_device.h> +#include <linux/regulator/driver.h> +#include <linux/regulator/machine.h> +#include <linux/slab.h> +#include <linux/regmap.h> +#include <linux/mfd/palmas.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/regulator/of_regulator.h> + +static const struct regulator_linear_range smps_low_ranges[] = { + REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), + REGULATOR_LINEAR_RANGE(500000, 0x1, 0x6, 0), + REGULATOR_LINEAR_RANGE(510000, 0x7, 0x79, 10000), + REGULATOR_LINEAR_RANGE(1650000, 0x7A, 0x7f, 0), +}; + +static const struct regulator_linear_range smps_high_ranges[] = { + REGULATOR_LINEAR_RANGE(0, 0x0, 0x0, 0), + REGULATOR_LINEAR_RANGE(1000000, 0x1, 0x6, 0), + REGULATOR_LINEAR_RANGE(1020000, 0x7, 0x79, 20000), + REGULATOR_LINEAR_RANGE(3300000, 0x7A, 0x7f, 0), +}; + +static struct palmas_regs_info palmas_generic_regs_info[] = { + { + .name = "SMPS12", + .sname = "smps1-in", + .vsel_addr = PALMAS_SMPS12_VOLTAGE, + .ctrl_addr = PALMAS_SMPS12_CTRL, + .tstep_addr = PALMAS_SMPS12_TSTEP, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12, + }, + { + .name = "SMPS123", + .sname = "smps1-in", + .vsel_addr = PALMAS_SMPS12_VOLTAGE, + .ctrl_addr = PALMAS_SMPS12_CTRL, + .tstep_addr = PALMAS_SMPS12_TSTEP, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS12, + }, + { + .name = "SMPS3", + .sname = "smps3-in", + .vsel_addr = PALMAS_SMPS3_VOLTAGE, + .ctrl_addr = PALMAS_SMPS3_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS3, + }, + { + .name = "SMPS45", + .sname = "smps4-in", + .vsel_addr = PALMAS_SMPS45_VOLTAGE, + .ctrl_addr = PALMAS_SMPS45_CTRL, + .tstep_addr = PALMAS_SMPS45_TSTEP, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45, + }, + { + .name = "SMPS457", + .sname = "smps4-in", + .vsel_addr = PALMAS_SMPS45_VOLTAGE, + .ctrl_addr = PALMAS_SMPS45_CTRL, + .tstep_addr = PALMAS_SMPS45_TSTEP, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS45, + }, + { + .name = "SMPS6", + .sname = "smps6-in", + .vsel_addr = PALMAS_SMPS6_VOLTAGE, + .ctrl_addr = PALMAS_SMPS6_CTRL, + .tstep_addr = PALMAS_SMPS6_TSTEP, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS6, + }, + { + .name = "SMPS7", + .sname = "smps7-in", + .vsel_addr = PALMAS_SMPS7_VOLTAGE, + .ctrl_addr = PALMAS_SMPS7_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS7, + }, + { + .name = "SMPS8", + .sname = "smps8-in", + .vsel_addr = PALMAS_SMPS8_VOLTAGE, + .ctrl_addr = PALMAS_SMPS8_CTRL, + .tstep_addr = PALMAS_SMPS8_TSTEP, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS8, + }, + { + .name = "SMPS9", + .sname = "smps9-in", + .vsel_addr = PALMAS_SMPS9_VOLTAGE, + .ctrl_addr = PALMAS_SMPS9_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS9, + }, + { + .name = "SMPS10_OUT2", + .sname = "smps10-in", + .ctrl_addr = PALMAS_SMPS10_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10, + }, + { + .name = "SMPS10_OUT1", + .sname = "smps10-out2", + .ctrl_addr = PALMAS_SMPS10_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SMPS10, + }, + { + .name = "LDO1", + .sname = "ldo1-in", + .vsel_addr = PALMAS_LDO1_VOLTAGE, + .ctrl_addr = PALMAS_LDO1_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO1, + }, + { + .name = "LDO2", + .sname = "ldo2-in", + .vsel_addr = PALMAS_LDO2_VOLTAGE, + .ctrl_addr = PALMAS_LDO2_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO2, + }, + { + .name = "LDO3", + .sname = "ldo3-in", + .vsel_addr = PALMAS_LDO3_VOLTAGE, + .ctrl_addr = PALMAS_LDO3_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO3, + }, + { + .name = "LDO4", + .sname = "ldo4-in", + .vsel_addr = PALMAS_LDO4_VOLTAGE, + .ctrl_addr = PALMAS_LDO4_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO4, + }, + { + .name = "LDO5", + .sname = "ldo5-in", + .vsel_addr = PALMAS_LDO5_VOLTAGE, + .ctrl_addr = PALMAS_LDO5_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO5, + }, + { + .name = "LDO6", + .sname = "ldo6-in", + .vsel_addr = PALMAS_LDO6_VOLTAGE, + .ctrl_addr = PALMAS_LDO6_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO6, + }, + { + .name = "LDO7", + .sname = "ldo7-in", + .vsel_addr = PALMAS_LDO7_VOLTAGE, + .ctrl_addr = PALMAS_LDO7_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO7, + }, + { + .name = "LDO8", + .sname = "ldo8-in", + .vsel_addr = PALMAS_LDO8_VOLTAGE, + .ctrl_addr = PALMAS_LDO8_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO8, + }, + { + .name = "LDO9", + .sname = "ldo9-in", + .vsel_addr = PALMAS_LDO9_VOLTAGE, + .ctrl_addr = PALMAS_LDO9_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDO9, + }, + { + .name = "LDOLN", + .sname = "ldoln-in", + .vsel_addr = PALMAS_LDOLN_VOLTAGE, + .ctrl_addr = PALMAS_LDOLN_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOLN, + }, + { + .name = "LDOUSB", + .sname = "ldousb-in", + .vsel_addr = PALMAS_LDOUSB_VOLTAGE, + .ctrl_addr = PALMAS_LDOUSB_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_LDOUSB, + }, + { + .name = "REGEN1", + .ctrl_addr = PALMAS_REGEN1_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN1, + }, + { + .name = "REGEN2", + .ctrl_addr = PALMAS_REGEN2_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN2, + }, + { + .name = "REGEN3", + .ctrl_addr = PALMAS_REGEN3_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_REGEN3, + }, + { + .name = "SYSEN1", + .ctrl_addr = PALMAS_SYSEN1_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN1, + }, + { + .name = "SYSEN2", + .ctrl_addr = PALMAS_SYSEN2_CTRL, + .sleep_id = PALMAS_EXTERNAL_REQSTR_ID_SYSEN2, + }, +}; + +static struct palmas_regs_info tps65917_regs_info[] = { + { + .name = "SMPS1", + .sname = "smps1-in", + .vsel_addr = TPS65917_SMPS1_VOLTAGE, + .ctrl_addr = TPS65917_SMPS1_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS1, + }, + { + .name = "SMPS2", + .sname = "smps2-in", + .vsel_addr = TPS65917_SMPS2_VOLTAGE, + .ctrl_addr = TPS65917_SMPS2_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS2, + }, + { + .name = "SMPS3", + .sname = "smps3-in", + .vsel_addr = TPS65917_SMPS3_VOLTAGE, + .ctrl_addr = TPS65917_SMPS3_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS3, + }, + { + .name = "SMPS4", + .sname = "smps4-in", + .vsel_addr = TPS65917_SMPS4_VOLTAGE, + .ctrl_addr = TPS65917_SMPS4_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS4, + }, + { + .name = "SMPS5", + .sname = "smps5-in", + .vsel_addr = TPS65917_SMPS5_VOLTAGE, + .ctrl_addr = TPS65917_SMPS5_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_SMPS5, + }, + { + .name = "LDO1", + .sname = "ldo1-in", + .vsel_addr = TPS65917_LDO1_VOLTAGE, + .ctrl_addr = TPS65917_LDO1_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO1, + }, + { + .name = "LDO2", + .sname = "ldo2-in", + .vsel_addr = TPS65917_LDO2_VOLTAGE, + .ctrl_addr = TPS65917_LDO2_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO2, + }, + { + .name = "LDO3", + .sname = "ldo3-in", + .vsel_addr = TPS65917_LDO3_VOLTAGE, + .ctrl_addr = TPS65917_LDO3_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO3, + }, + { + .name = "LDO4", + .sname = "ldo4-in", + .vsel_addr = TPS65917_LDO4_VOLTAGE, + .ctrl_addr = TPS65917_LDO4_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO4, + }, + { + .name = "LDO5", + .sname = "ldo5-in", + .vsel_addr = TPS65917_LDO5_VOLTAGE, + .ctrl_addr = TPS65917_LDO5_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_LDO5, + }, + { + .name = "REGEN1", + .ctrl_addr = TPS65917_REGEN1_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN1, + }, + { + .name = "REGEN2", + .ctrl_addr = TPS65917_REGEN2_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN2, + }, + { + .name = "REGEN3", + .ctrl_addr = TPS65917_REGEN3_CTRL, + .sleep_id = TPS65917_EXTERNAL_REQSTR_ID_REGEN3, + }, +}; + +#define EXTERNAL_REQUESTOR(_id, _offset, _pos) \ + [PALMAS_EXTERNAL_REQSTR_ID_##_id] = { \ + .id = PALMAS_EXTERNAL_REQSTR_ID_##_id, \ + .reg_offset = _offset, \ + .bit_pos = _pos, \ + } + +static struct palmas_sleep_requestor_info palma_sleep_req_info[] = { + EXTERNAL_REQUESTOR(REGEN1, 0, 0), + EXTERNAL_REQUESTOR(REGEN2, 0, 1), + EXTERNAL_REQUESTOR(SYSEN1, 0, 2), + EXTERNAL_REQUESTOR(SYSEN2, 0, 3), + EXTERNAL_REQUESTOR(CLK32KG, 0, 4), + EXTERNAL_REQUESTOR(CLK32KGAUDIO, 0, 5), + EXTERNAL_REQUESTOR(REGEN3, 0, 6), + EXTERNAL_REQUESTOR(SMPS12, 1, 0), + EXTERNAL_REQUESTOR(SMPS3, 1, 1), + EXTERNAL_REQUESTOR(SMPS45, 1, 2), + EXTERNAL_REQUESTOR(SMPS6, 1, 3), + EXTERNAL_REQUESTOR(SMPS7, 1, 4), + EXTERNAL_REQUESTOR(SMPS8, 1, 5), + EXTERNAL_REQUESTOR(SMPS9, 1, 6), + EXTERNAL_REQUESTOR(SMPS10, 1, 7), + EXTERNAL_REQUESTOR(LDO1, 2, 0), + EXTERNAL_REQUESTOR(LDO2, 2, 1), + EXTERNAL_REQUESTOR(LDO3, 2, 2), + EXTERNAL_REQUESTOR(LDO4, 2, 3), + EXTERNAL_REQUESTOR(LDO5, 2, 4), + EXTERNAL_REQUESTOR(LDO6, 2, 5), + EXTERNAL_REQUESTOR(LDO7, 2, 6), + EXTERNAL_REQUESTOR(LDO8, 2, 7), + EXTERNAL_REQUESTOR(LDO9, 3, 0), + EXTERNAL_REQUESTOR(LDOLN, 3, 1), + EXTERNAL_REQUESTOR(LDOUSB, 3, 2), +}; + +#define EXTERNAL_REQUESTOR_TPS65917(_id, _offset, _pos) \ + [TPS65917_EXTERNAL_REQSTR_ID_##_id] = { \ + .id = TPS65917_EXTERNAL_REQSTR_ID_##_id, \ + .reg_offset = _offset, \ + .bit_pos = _pos, \ + } + +static struct palmas_sleep_requestor_info tps65917_sleep_req_info[] = { + EXTERNAL_REQUESTOR_TPS65917(REGEN1, 0, 0), + EXTERNAL_REQUESTOR_TPS65917(REGEN2, 0, 1), + EXTERNAL_REQUESTOR_TPS65917(REGEN3, 0, 6), + EXTERNAL_REQUESTOR_TPS65917(SMPS1, 1, 0), + EXTERNAL_REQUESTOR_TPS65917(SMPS2, 1, 1), + EXTERNAL_REQUESTOR_TPS65917(SMPS3, 1, 2), + EXTERNAL_REQUESTOR_TPS65917(SMPS4, 1, 3), + EXTERNAL_REQUESTOR_TPS65917(SMPS5, 1, 4), + EXTERNAL_REQUESTOR_TPS65917(LDO1, 2, 0), + EXTERNAL_REQUESTOR_TPS65917(LDO2, 2, 1), + EXTERNAL_REQUESTOR_TPS65917(LDO3, 2, 2), + EXTERNAL_REQUESTOR_TPS65917(LDO4, 2, 3), + EXTERNAL_REQUESTOR_TPS65917(LDO5, 2, 4), +}; + +static unsigned int palmas_smps_ramp_delay[4] = {0, 10000, 5000, 2500}; + +#define SMPS_CTRL_MODE_OFF 0x00 +#define SMPS_CTRL_MODE_ON 0x01 +#define SMPS_CTRL_MODE_ECO 0x02 +#define SMPS_CTRL_MODE_PWM 0x03 + +#define PALMAS_SMPS_NUM_VOLTAGES 122 +#define PALMAS_SMPS10_NUM_VOLTAGES 2 +#define PALMAS_LDO_NUM_VOLTAGES 50 + +#define SMPS10_VSEL (1<<3) +#define SMPS10_BOOST_EN (1<<2) +#define SMPS10_BYPASS_EN (1<<1) +#define SMPS10_SWITCH_EN (1<<0) + +#define REGULATOR_SLAVE 0 + +static int palmas_smps_read(struct palmas *palmas, unsigned int reg, + unsigned int *dest) +{ + unsigned int addr; + + addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg); + + return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest); +} + +static int palmas_smps_write(struct palmas *palmas, unsigned int reg, + unsigned int value) +{ + unsigned int addr; + + addr = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, reg); + + return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value); +} + +static int palmas_ldo_read(struct palmas *palmas, unsigned int reg, + unsigned int *dest) +{ + unsigned int addr; + + addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg); + + return regmap_read(palmas->regmap[REGULATOR_SLAVE], addr, dest); +} + +static int palmas_ldo_write(struct palmas *palmas, unsigned int reg, + unsigned int value) +{ + unsigned int addr; + + addr = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, reg); + + return regmap_write(palmas->regmap[REGULATOR_SLAVE], addr, value); +} + +static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode) +{ + int id = rdev_get_id(dev); + struct palmas_pmic *pmic = rdev_get_drvdata(dev); + struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata; + struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; + unsigned int reg; + bool rail_enable = true; + + palmas_smps_read(pmic->palmas, rinfo->ctrl_addr, ®); + + reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; + + if (reg == SMPS_CTRL_MODE_OFF) + rail_enable = false; + + switch (mode) { + case REGULATOR_MODE_NORMAL: + reg |= SMPS_CTRL_MODE_ON; + break; + case REGULATOR_MODE_IDLE: + reg |= SMPS_CTRL_MODE_ECO; + break; + case REGULATOR_MODE_FAST: + reg |= SMPS_CTRL_MODE_PWM; + break; + default: + return -EINVAL; + } + + pmic->current_reg_mode[id] = reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; + if (rail_enable) + palmas_smps_write(pmic->palmas, rinfo->ctrl_addr, reg); + + /* Switch the enable value to ensure this is used for enable */ + pmic->desc[id].enable_val = pmic->current_reg_mode[id]; + + return 0; +} + +static unsigned int palmas_get_mode_smps(struct regulator_dev *dev) +{ + struct palmas_pmic *pmic = rdev_get_drvdata(dev); + int id = rdev_get_id(dev); + unsigned int reg; + + reg = pmic->current_reg_mode[id] & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; + + switch (reg) { + case SMPS_CTRL_MODE_ON: + return REGULATOR_MODE_NORMAL; + case SMPS_CTRL_MODE_ECO: + return REGULATOR_MODE_IDLE; + case SMPS_CTRL_MODE_PWM: + return REGULATOR_MODE_FAST; + } + + return 0; +} + +static int palmas_smps_set_ramp_delay(struct regulator_dev *rdev, + int ramp_delay) +{ + int id = rdev_get_id(rdev); + struct palmas_pmic *pmic = rdev_get_drvdata(rdev); + struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata; + struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; + unsigned int reg = 0; + int ret; + + /* SMPS3 and SMPS7 do not have tstep_addr setting */ + switch (id) { + case PALMAS_REG_SMPS3: + case PALMAS_REG_SMPS7: + return 0; + } + + if (ramp_delay <= 0) + reg = 0; + else if (ramp_delay <= 2500) + reg = 3; + else if (ramp_delay <= 5000) + reg = 2; + else + reg = 1; + + ret = palmas_smps_write(pmic->palmas, rinfo->tstep_addr, reg); + if (ret < 0) { + dev_err(pmic->palmas->dev, "TSTEP write failed: %d\n", ret); + return ret; + } + + pmic->ramp_delay[id] = palmas_smps_ramp_delay[reg]; + return ret; +} + +static struct regulator_ops palmas_ops_smps = { + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .set_mode = palmas_set_mode_smps, + .get_mode = palmas_get_mode_smps, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_ramp_delay = palmas_smps_set_ramp_delay, +}; + +static struct regulator_ops palmas_ops_ext_control_smps = { + .set_mode = palmas_set_mode_smps, + .get_mode = palmas_get_mode_smps, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_ramp_delay = palmas_smps_set_ramp_delay, +}; + +static struct regulator_ops palmas_ops_smps10 = { + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .set_bypass = regulator_set_bypass_regmap, + .get_bypass = regulator_get_bypass_regmap, +}; + +static struct regulator_ops tps65917_ops_smps = { + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .set_mode = palmas_set_mode_smps, + .get_mode = palmas_get_mode_smps, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .set_voltage_time_sel = regulator_set_voltage_time_sel, +}; + +static struct regulator_ops tps65917_ops_ext_control_smps = { + .set_mode = palmas_set_mode_smps, + .get_mode = palmas_get_mode_smps, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, +}; + +static int palmas_is_enabled_ldo(struct regulator_dev *dev) +{ + int id = rdev_get_id(dev); + struct palmas_pmic *pmic = rdev_get_drvdata(dev); + struct palmas_pmic_driver_data *ddata = pmic->palmas->pmic_ddata; + struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; + unsigned int reg; + + palmas_ldo_read(pmic->palmas, rinfo->ctrl_addr, ®); + + reg &= PALMAS_LDO1_CTRL_STATUS; + + return !!(reg); +} + +static struct regulator_ops palmas_ops_ldo = { + .is_enabled = palmas_is_enabled_ldo, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, +}; + +static struct regulator_ops palmas_ops_ext_control_ldo = { + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, +}; + +static struct regulator_ops palmas_ops_extreg = { + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, +}; + +static struct regulator_ops palmas_ops_ext_control_extreg = { +}; + +static struct regulator_ops tps65917_ops_ldo = { + .is_enabled = palmas_is_enabled_ldo, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .set_voltage_time_sel = regulator_set_voltage_time_sel, +}; + +static int palmas_regulator_config_external(struct palmas *palmas, int id, + struct palmas_reg_init *reg_init) +{ + struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; + struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; + int ret; + + ret = palmas_ext_control_req_config(palmas, rinfo->sleep_id, + reg_init->roof_floor, true); + if (ret < 0) + dev_err(palmas->dev, + "Ext control config for regulator %d failed %d\n", + id, ret); + return ret; +} + +/* + * setup the hardware based sleep configuration of the SMPS/LDO regulators + * from the platform data. This is different to the software based control + * supported by the regulator framework as it is controlled by toggling + * pins on the PMIC such as PREQ, SYSEN, ... + */ +static int palmas_smps_init(struct palmas *palmas, int id, + struct palmas_reg_init *reg_init) +{ + unsigned int reg; + int ret; + struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; + struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; + unsigned int addr = rinfo->ctrl_addr; + + ret = palmas_smps_read(palmas, addr, ®); + if (ret) + return ret; + + switch (id) { + case PALMAS_REG_SMPS10_OUT1: + case PALMAS_REG_SMPS10_OUT2: + reg &= ~PALMAS_SMPS10_CTRL_MODE_SLEEP_MASK; + if (reg_init->mode_sleep) + reg |= reg_init->mode_sleep << + PALMAS_SMPS10_CTRL_MODE_SLEEP_SHIFT; + break; + default: + if (reg_init->warm_reset) + reg |= PALMAS_SMPS12_CTRL_WR_S; + else + reg &= ~PALMAS_SMPS12_CTRL_WR_S; + + if (reg_init->roof_floor) + reg |= PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; + else + reg &= ~PALMAS_SMPS12_CTRL_ROOF_FLOOR_EN; + + reg &= ~PALMAS_SMPS12_CTRL_MODE_SLEEP_MASK; + if (reg_init->mode_sleep) + reg |= reg_init->mode_sleep << + PALMAS_SMPS12_CTRL_MODE_SLEEP_SHIFT; + } + + ret = palmas_smps_write(palmas, addr, reg); + if (ret) + return ret; + + if (rinfo->vsel_addr && reg_init->vsel) { + + reg = reg_init->vsel; + + ret = palmas_smps_write(palmas, rinfo->vsel_addr, reg); + if (ret) + return ret; + } + + if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) && + (id != PALMAS_REG_SMPS10_OUT2)) { + /* Enable externally controlled regulator */ + ret = palmas_smps_read(palmas, addr, ®); + if (ret < 0) + return ret; + + if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) { + reg |= SMPS_CTRL_MODE_ON; + ret = palmas_smps_write(palmas, addr, reg); + if (ret < 0) + return ret; + } + return palmas_regulator_config_external(palmas, id, reg_init); + } + return 0; +} + +static int palmas_ldo_init(struct palmas *palmas, int id, + struct palmas_reg_init *reg_init) +{ + unsigned int reg; + unsigned int addr; + int ret; + struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; + struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; + + addr = rinfo->ctrl_addr; + + ret = palmas_ldo_read(palmas, addr, ®); + if (ret) + return ret; + + if (reg_init->warm_reset) + reg |= PALMAS_LDO1_CTRL_WR_S; + else + reg &= ~PALMAS_LDO1_CTRL_WR_S; + + if (reg_init->mode_sleep) + reg |= PALMAS_LDO1_CTRL_MODE_SLEEP; + else + reg &= ~PALMAS_LDO1_CTRL_MODE_SLEEP; + + ret = palmas_ldo_write(palmas, addr, reg); + if (ret) + return ret; + + if (reg_init->roof_floor) { + /* Enable externally controlled regulator */ + ret = palmas_update_bits(palmas, PALMAS_LDO_BASE, + addr, PALMAS_LDO1_CTRL_MODE_ACTIVE, + PALMAS_LDO1_CTRL_MODE_ACTIVE); + if (ret < 0) { + dev_err(palmas->dev, + "LDO Register 0x%02x update failed %d\n", + addr, ret); + return ret; + } + return palmas_regulator_config_external(palmas, id, reg_init); + } + return 0; +} + +static int palmas_extreg_init(struct palmas *palmas, int id, + struct palmas_reg_init *reg_init) +{ + unsigned int addr; + int ret; + unsigned int val = 0; + struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; + struct palmas_regs_info *rinfo = &ddata->palmas_regs_info[id]; + + addr = rinfo->ctrl_addr; + + if (reg_init->mode_sleep) + val = PALMAS_REGEN1_CTRL_MODE_SLEEP; + + ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, + addr, PALMAS_REGEN1_CTRL_MODE_SLEEP, val); + if (ret < 0) { + dev_err(palmas->dev, "Resource reg 0x%02x update failed %d\n", + addr, ret); + return ret; + } + + if (reg_init->roof_floor) { + /* Enable externally controlled regulator */ + ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE, + addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE, + PALMAS_REGEN1_CTRL_MODE_ACTIVE); + if (ret < 0) { + dev_err(palmas->dev, + "Resource Register 0x%02x update failed %d\n", + addr, ret); + return ret; + } + return palmas_regulator_config_external(palmas, id, reg_init); + } + return 0; +} + +static void palmas_enable_ldo8_track(struct palmas *palmas) +{ + unsigned int reg; + unsigned int addr; + int ret; + struct palmas_pmic_driver_data *ddata = palmas->pmic_ddata; + struct palmas_regs_info *rinfo; + + rinfo = &ddata->palmas_regs_info[PALMAS_REG_LDO8]; + addr = rinfo->ctrl_addr; + + ret = palmas_ldo_read(palmas, addr, ®); + if (ret) { + dev_err(palmas->dev, "Error in reading ldo8 control reg\n"); + return; + } + + reg |= PALMAS_LDO8_CTRL_LDO_TRACKING_EN; + ret = palmas_ldo_write(palmas, addr, reg); + if (ret < 0) { + dev_err(palmas->dev, "Error in enabling tracking mode\n"); + return; + } + /* + * When SMPS45 is set to off and LDO8 tracking is enabled, the LDO8 + * output is defined by the LDO8_VOLTAGE.VSEL register divided by two, + * and can be set from 0.45 to 1.65 V. + */ + addr = rinfo->vsel_addr; + ret = palmas_ldo_read(palmas, addr, ®); + if (ret) { + dev_err(palmas->dev, "Error in reading ldo8 voltage reg\n"); + return; + } + + reg = (reg << 1) & PALMAS_LDO8_VOLTAGE_VSEL_MASK; + ret = palmas_ldo_write(palmas, addr, reg); + if (ret < 0) + dev_err(palmas->dev, "Error in setting ldo8 voltage reg\n"); + + return; +} + +static int palmas_ldo_registration(struct palmas_pmic *pmic, + struct palmas_pmic_driver_data *ddata, + struct palmas_pmic_platform_data *pdata, + const char *pdev_name, + struct regulator_config config) +{ + int id, ret; + struct regulator_dev *rdev; + struct palmas_reg_init *reg_init; + struct palmas_regs_info *rinfo; + struct regulator_desc *desc; + + for (id = ddata->ldo_begin; id < ddata->max_reg; id++) { + if (pdata && pdata->reg_init[id]) + reg_init = pdata->reg_init[id]; + else + reg_init = NULL; + + rinfo = &ddata->palmas_regs_info[id]; + /* Miss out regulators which are not available due + * to alternate functions. + */ + + /* Register the regulators */ + desc = &pmic->desc[id]; + desc->name = rinfo->name; + desc->id = id; + desc->type = REGULATOR_VOLTAGE; + desc->owner = THIS_MODULE; + + if (id < PALMAS_REG_REGEN1) { + desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES; + if (reg_init && reg_init->roof_floor) + desc->ops = &palmas_ops_ext_control_ldo; + else + desc->ops = &palmas_ops_ldo; + desc->min_uV = 900000; + desc->uV_step = 50000; + desc->linear_min_sel = 1; + desc->enable_time = 500; + desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, + rinfo->vsel_addr); + desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK; + desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, + rinfo->ctrl_addr); + desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE; + + /* Check if LDO8 is in tracking mode or not */ + if (pdata && (id == PALMAS_REG_LDO8) && + pdata->enable_ldo8_tracking) { + palmas_enable_ldo8_track(pmic->palmas); + desc->min_uV = 450000; + desc->uV_step = 25000; + } + + /* LOD6 in vibrator mode will have enable time 2000us */ + if (pdata && pdata->ldo6_vibrator && + (id == PALMAS_REG_LDO6)) + desc->enable_time = 2000; + } else { + if (!ddata->has_regen3 && id == PALMAS_REG_REGEN3) + continue; + + desc->n_voltages = 1; + if (reg_init && reg_init->roof_floor) + desc->ops = &palmas_ops_ext_control_extreg; + else + desc->ops = &palmas_ops_extreg; + desc->enable_reg = + PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, + rinfo->ctrl_addr); + desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE; + } + + if (pdata) + config.init_data = pdata->reg_data[id]; + else + config.init_data = NULL; + + desc->supply_name = rinfo->sname; + config.of_node = ddata->palmas_matches[id].of_node; + + rdev = devm_regulator_register(pmic->dev, desc, &config); + if (IS_ERR(rdev)) { + dev_err(pmic->dev, + "failed to register %s regulator\n", + pdev_name); + return PTR_ERR(rdev); + } + + /* Save regulator for cleanup */ + pmic->rdev[id] = rdev; + + /* Initialise sleep/init values from platform data */ + if (pdata) { + reg_init = pdata->reg_init[id]; + if (reg_init) { + if (id <= ddata->ldo_end) + ret = palmas_ldo_init(pmic->palmas, id, + reg_init); + else + ret = palmas_extreg_init(pmic->palmas, + id, reg_init); + if (ret) + return ret; + } + } + } + + return 0; +} + +static int tps65917_ldo_registration(struct palmas_pmic *pmic, + struct palmas_pmic_driver_data *ddata, + struct palmas_pmic_platform_data *pdata, + const char *pdev_name, + struct regulator_config config) +{ + int id, ret; + struct regulator_dev *rdev; + struct palmas_reg_init *reg_init; + struct palmas_regs_info *rinfo; + struct regulator_desc *desc; + + for (id = ddata->ldo_begin; id < ddata->max_reg; id++) { + if (pdata && pdata->reg_init[id]) + reg_init = pdata->reg_init[id]; + else + reg_init = NULL; + + /* Miss out regulators which are not available due + * to alternate functions. + */ + rinfo = &ddata->palmas_regs_info[id]; + + /* Register the regulators */ + desc = &pmic->desc[id]; + desc->name = rinfo->name; + desc->id = id; + desc->type = REGULATOR_VOLTAGE; + desc->owner = THIS_MODULE; + + if (id < TPS65917_REG_REGEN1) { + desc->n_voltages = PALMAS_LDO_NUM_VOLTAGES; + if (reg_init && reg_init->roof_floor) + desc->ops = &palmas_ops_ext_control_ldo; + else + desc->ops = &tps65917_ops_ldo; + desc->min_uV = 900000; + desc->uV_step = 50000; + desc->linear_min_sel = 1; + desc->enable_time = 500; + desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, + rinfo->vsel_addr); + desc->vsel_mask = PALMAS_LDO1_VOLTAGE_VSEL_MASK; + desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, + rinfo->ctrl_addr); + desc->enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE; + /* + * To be confirmed. Discussion on going with PMIC Team. + * It is of the order of ~60mV/uS. + */ + desc->ramp_delay = 2500; + } else { + desc->n_voltages = 1; + if (reg_init && reg_init->roof_floor) + desc->ops = &palmas_ops_ext_control_extreg; + else + desc->ops = &palmas_ops_extreg; + desc->enable_reg = + PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE, + rinfo->ctrl_addr); + desc->enable_mask = PALMAS_REGEN1_CTRL_MODE_ACTIVE; + } + + if (pdata) + config.init_data = pdata->reg_data[id]; + else + config.init_data = NULL; + + desc->supply_name = rinfo->sname; + config.of_node = ddata->palmas_matches[id].of_node; + + rdev = devm_regulator_register(pmic->dev, desc, &config); + if (IS_ERR(rdev)) { + dev_err(pmic->dev, + "failed to register %s regulator\n", + pdev_name); + return PTR_ERR(rdev); + } + + /* Save regulator for cleanup */ + pmic->rdev[id] = rdev; + + /* Initialise sleep/init values from platform data */ + if (pdata) { + reg_init = pdata->reg_init[id]; + if (reg_init) { + if (id < TPS65917_REG_REGEN1) + ret = palmas_ldo_init(pmic->palmas, + id, reg_init); + else + ret = palmas_extreg_init(pmic->palmas, + id, reg_init); + if (ret) + return ret; + } + } + } + + return 0; +} + +static int palmas_smps_registration(struct palmas_pmic *pmic, + struct palmas_pmic_driver_data *ddata, + struct palmas_pmic_platform_data *pdata, + const char *pdev_name, + struct regulator_config config) +{ + int id, ret; + unsigned int addr, reg; + struct regulator_dev *rdev; + struct palmas_reg_init *reg_init; + struct palmas_regs_info *rinfo; + struct regulator_desc *desc; + + for (id = ddata->smps_start; id <= ddata->smps_end; id++) { + bool ramp_delay_support = false; + + /* + * Miss out regulators which are not available due + * to slaving configurations. + */ + switch (id) { + case PALMAS_REG_SMPS12: + case PALMAS_REG_SMPS3: + if (pmic->smps123) + continue; + if (id == PALMAS_REG_SMPS12) + ramp_delay_support = true; + break; + case PALMAS_REG_SMPS123: + if (!pmic->smps123) + continue; + ramp_delay_support = true; + break; + case PALMAS_REG_SMPS45: + case PALMAS_REG_SMPS7: + if (pmic->smps457) + continue; + if (id == PALMAS_REG_SMPS45) + ramp_delay_support = true; + break; + case PALMAS_REG_SMPS457: + if (!pmic->smps457) + continue; + ramp_delay_support = true; + break; + case PALMAS_REG_SMPS10_OUT1: + case PALMAS_REG_SMPS10_OUT2: + if (!PALMAS_PMIC_HAS(pmic->palmas, SMPS10_BOOST)) + continue; + } + rinfo = &ddata->palmas_regs_info[id]; + desc = &pmic->desc[id]; + + if ((id == PALMAS_REG_SMPS6) || (id == PALMAS_REG_SMPS8)) + ramp_delay_support = true; + + if (ramp_delay_support) { + addr = rinfo->tstep_addr; + ret = palmas_smps_read(pmic->palmas, addr, ®); + if (ret < 0) { + dev_err(pmic->dev, + "reading TSTEP reg failed: %d\n", ret); + return ret; + } + desc->ramp_delay = palmas_smps_ramp_delay[reg & 0x3]; + pmic->ramp_delay[id] = desc->ramp_delay; + } + + /* Initialise sleep/init values from platform data */ + if (pdata && pdata->reg_init[id]) { + reg_init = pdata->reg_init[id]; + ret = palmas_smps_init(pmic->palmas, id, reg_init); + if (ret) + return ret; + } else { + reg_init = NULL; + } + + /* Register the regulators */ + desc->name = rinfo->name; + desc->id = id; + + switch (id) { + case PALMAS_REG_SMPS10_OUT1: + case PALMAS_REG_SMPS10_OUT2: + desc->n_voltages = PALMAS_SMPS10_NUM_VOLTAGES; + desc->ops = &palmas_ops_smps10; + desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, + PALMAS_SMPS10_CTRL); + desc->vsel_mask = SMPS10_VSEL; + desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, + PALMAS_SMPS10_CTRL); + if (id == PALMAS_REG_SMPS10_OUT1) + desc->enable_mask = SMPS10_SWITCH_EN; + else + desc->enable_mask = SMPS10_BOOST_EN; + desc->bypass_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, + PALMAS_SMPS10_CTRL); + desc->bypass_mask = SMPS10_BYPASS_EN; + desc->min_uV = 3750000; + desc->uV_step = 1250000; + break; + default: + /* + * Read and store the RANGE bit for later use + * This must be done before regulator is probed, + * otherwise we error in probe with unsupportable + * ranges. Read the current smps mode for later use. + */ + addr = rinfo->vsel_addr; + desc->n_linear_ranges = 3; + + ret = palmas_smps_read(pmic->palmas, addr, ®); + if (ret) + return ret; + if (reg & PALMAS_SMPS12_VOLTAGE_RANGE) + pmic->range[id] = 1; + if (pmic->range[id]) + desc->linear_ranges = smps_high_ranges; + else + desc->linear_ranges = smps_low_ranges; + + if (reg_init && reg_init->roof_floor) + desc->ops = &palmas_ops_ext_control_smps; + else + desc->ops = &palmas_ops_smps; + desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES; + desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, + rinfo->vsel_addr); + desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK; + + /* Read the smps mode for later use. */ + addr = rinfo->ctrl_addr; + ret = palmas_smps_read(pmic->palmas, addr, ®); + if (ret) + return ret; + pmic->current_reg_mode[id] = reg & + PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; + + desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, + rinfo->ctrl_addr); + desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; + /* set_mode overrides this value */ + desc->enable_val = SMPS_CTRL_MODE_ON; + } + + desc->type = REGULATOR_VOLTAGE; + desc->owner = THIS_MODULE; + + if (pdata) + config.init_data = pdata->reg_data[id]; + else + config.init_data = NULL; + + desc->supply_name = rinfo->sname; + config.of_node = ddata->palmas_matches[id].of_node; + + rdev = devm_regulator_register(pmic->dev, desc, &config); + if (IS_ERR(rdev)) { + dev_err(pmic->dev, + "failed to register %s regulator\n", + pdev_name); + return PTR_ERR(rdev); + } + + /* Save regulator for cleanup */ + pmic->rdev[id] = rdev; + } + + return 0; +} + +static int tps65917_smps_registration(struct palmas_pmic *pmic, + struct palmas_pmic_driver_data *ddata, + struct palmas_pmic_platform_data *pdata, + const char *pdev_name, + struct regulator_config config) +{ + int id, ret; + unsigned int addr, reg; + struct regulator_dev *rdev; + struct palmas_reg_init *reg_init; + struct palmas_regs_info *rinfo; + struct regulator_desc *desc; + + for (id = ddata->smps_start; id <= ddata->smps_end; id++) { + /* + * Miss out regulators which are not available due + * to slaving configurations. + */ + desc = &pmic->desc[id]; + desc->n_linear_ranges = 3; + if ((id == TPS65917_REG_SMPS2) && pmic->smps12) + continue; + + /* Initialise sleep/init values from platform data */ + if (pdata && pdata->reg_init[id]) { + reg_init = pdata->reg_init[id]; + ret = palmas_smps_init(pmic->palmas, id, reg_init); + if (ret) + return ret; + } else { + reg_init = NULL; + } + rinfo = &ddata->palmas_regs_info[id]; + + /* Register the regulators */ + desc->name = rinfo->name; + desc->id = id; + + /* + * Read and store the RANGE bit for later use + * This must be done before regulator is probed, + * otherwise we error in probe with unsupportable + * ranges. Read the current smps mode for later use. + */ + addr = rinfo->vsel_addr; + + ret = palmas_smps_read(pmic->palmas, addr, ®); + if (ret) + return ret; + if (reg & TPS65917_SMPS1_VOLTAGE_RANGE) + pmic->range[id] = 1; + + if (pmic->range[id]) + desc->linear_ranges = smps_high_ranges; + else + desc->linear_ranges = smps_low_ranges; + + if (reg_init && reg_init->roof_floor) + desc->ops = &tps65917_ops_ext_control_smps; + else + desc->ops = &tps65917_ops_smps; + desc->n_voltages = PALMAS_SMPS_NUM_VOLTAGES; + desc->vsel_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, + rinfo->vsel_addr); + desc->vsel_mask = PALMAS_SMPS12_VOLTAGE_VSEL_MASK; + desc->ramp_delay = 2500; + + /* Read the smps mode for later use. */ + addr = rinfo->ctrl_addr; + ret = palmas_smps_read(pmic->palmas, addr, ®); + if (ret) + return ret; + pmic->current_reg_mode[id] = reg & + PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; + desc->enable_reg = PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, + rinfo->ctrl_addr); + desc->enable_mask = PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK; + /* set_mode overrides this value */ + desc->enable_val = SMPS_CTRL_MODE_ON; + + desc->type = REGULATOR_VOLTAGE; + desc->owner = THIS_MODULE; + + if (pdata) + config.init_data = pdata->reg_data[id]; + else + config.init_data = NULL; + + desc->supply_name = rinfo->sname; + config.of_node = ddata->palmas_matches[id].of_node; + + rdev = devm_regulator_register(pmic->dev, desc, &config); + if (IS_ERR(rdev)) { + dev_err(pmic->dev, + "failed to register %s regulator\n", + pdev_name); + return PTR_ERR(rdev); + } + + /* Save regulator for cleanup */ + pmic->rdev[id] = rdev; + } + + return 0; +} + +static struct of_regulator_match palmas_matches[] = { + { .name = "smps12", }, + { .name = "smps123", }, + { .name = "smps3", }, + { .name = "smps45", }, + { .name = "smps457", }, + { .name = "smps6", }, + { .name = "smps7", }, + { .name = "smps8", }, + { .name = "smps9", }, + { .name = "smps10_out2", }, + { .name = "smps10_out1", }, + { .name = "ldo1", }, + { .name = "ldo2", }, + { .name = "ldo3", }, + { .name = "ldo4", }, + { .name = "ldo5", }, + { .name = "ldo6", }, + { .name = "ldo7", }, + { .name = "ldo8", }, + { .name = "ldo9", }, + { .name = "ldoln", }, + { .name = "ldousb", }, + { .name = "regen1", }, + { .name = "regen2", }, + { .name = "regen3", }, + { .name = "sysen1", }, + { .name = "sysen2", }, +}; + +static struct of_regulator_match tps65917_matches[] = { + { .name = "smps1", }, + { .name = "smps2", }, + { .name = "smps3", }, + { .name = "smps4", }, + { .name = "smps5", }, + { .name = "ldo1", }, + { .name = "ldo2", }, + { .name = "ldo3", }, + { .name = "ldo4", }, + { .name = "ldo5", }, + { .name = "regen1", }, + { .name = "regen2", }, + { .name = "regen3", }, + { .name = "sysen1", }, + { .name = "sysen2", }, +}; + +static struct palmas_pmic_driver_data palmas_ddata = { + .smps_start = PALMAS_REG_SMPS12, + .smps_end = PALMAS_REG_SMPS10_OUT1, + .ldo_begin = PALMAS_REG_LDO1, + .ldo_end = PALMAS_REG_LDOUSB, + .max_reg = PALMAS_NUM_REGS, + .has_regen3 = true, + .palmas_regs_info = palmas_generic_regs_info, + .palmas_matches = palmas_matches, + .sleep_req_info = palma_sleep_req_info, + .smps_register = palmas_smps_registration, + .ldo_register = palmas_ldo_registration, +}; + +static struct palmas_pmic_driver_data tps65917_ddata = { + .smps_start = TPS65917_REG_SMPS1, + .smps_end = TPS65917_REG_SMPS5, + .ldo_begin = TPS65917_REG_LDO1, + .ldo_end = TPS65917_REG_LDO5, + .max_reg = TPS65917_NUM_REGS, + .has_regen3 = true, + .palmas_regs_info = tps65917_regs_info, + .palmas_matches = tps65917_matches, + .sleep_req_info = tps65917_sleep_req_info, + .smps_register = tps65917_smps_registration, + .ldo_register = tps65917_ldo_registration, +}; + +static void palmas_dt_to_pdata(struct device *dev, + struct device_node *node, + struct palmas_pmic_platform_data *pdata, + struct palmas_pmic_driver_data *ddata) +{ + struct device_node *regulators; + u32 prop; + int idx, ret; + + regulators = of_get_child_by_name(node, "regulators"); + if (!regulators) { + dev_info(dev, "regulator node not found\n"); + return; + } + + ret = of_regulator_match(dev, regulators, ddata->palmas_matches, + ddata->max_reg); + of_node_put(regulators); + if (ret < 0) { + dev_err(dev, "Error parsing regulator init data: %d\n", ret); + return; + } + + for (idx = 0; idx < ddata->max_reg; idx++) { + if (!ddata->palmas_matches[idx].init_data || + !ddata->palmas_matches[idx].of_node) + continue; + + pdata->reg_data[idx] = ddata->palmas_matches[idx].init_data; + + pdata->reg_init[idx] = devm_kzalloc(dev, + sizeof(struct palmas_reg_init), GFP_KERNEL); + + pdata->reg_init[idx]->warm_reset = + of_property_read_bool(ddata->palmas_matches[idx].of_node, + "ti,warm-reset"); + + ret = of_property_read_u32(ddata->palmas_matches[idx].of_node, + "ti,roof-floor", &prop); + /* EINVAL: Property not found */ + if (ret != -EINVAL) { + int econtrol; + + /* use default value, when no value is specified */ + econtrol = PALMAS_EXT_CONTROL_NSLEEP; + if (!ret) { + switch (prop) { + case 1: + econtrol = PALMAS_EXT_CONTROL_ENABLE1; + break; + case 2: + econtrol = PALMAS_EXT_CONTROL_ENABLE2; + break; + case 3: + econtrol = PALMAS_EXT_CONTROL_NSLEEP; + break; + default: + WARN_ON(1); + dev_warn(dev, + "%s: Invalid roof-floor option: %u\n", + palmas_matches[idx].name, prop); + break; + } + } + pdata->reg_init[idx]->roof_floor = econtrol; + } + + ret = of_property_read_u32(ddata->palmas_matches[idx].of_node, + "ti,mode-sleep", &prop); + if (!ret) + pdata->reg_init[idx]->mode_sleep = prop; + + ret = of_property_read_bool(ddata->palmas_matches[idx].of_node, + "ti,smps-range"); + if (ret) + pdata->reg_init[idx]->vsel = + PALMAS_SMPS12_VOLTAGE_RANGE; + + if (idx == PALMAS_REG_LDO8) + pdata->enable_ldo8_tracking = of_property_read_bool( + ddata->palmas_matches[idx].of_node, + "ti,enable-ldo8-tracking"); + } + + pdata->ldo6_vibrator = of_property_read_bool(node, "ti,ldo6-vibrator"); +} + +static const struct of_device_id of_palmas_match_tbl[] = { + { + .compatible = "ti,palmas-pmic", + .data = &palmas_ddata, + }, + { + .compatible = "ti,twl6035-pmic", + .data = &palmas_ddata, + }, + { + .compatible = "ti,twl6036-pmic", + .data = &palmas_ddata, + }, + { + .compatible = "ti,twl6037-pmic", + .data = &palmas_ddata, + }, + { + .compatible = "ti,tps65913-pmic", + .data = &palmas_ddata, + }, + { + .compatible = "ti,tps65914-pmic", + .data = &palmas_ddata, + }, + { + .compatible = "ti,tps80036-pmic", + .data = &palmas_ddata, + }, + { + .compatible = "ti,tps659038-pmic", + .data = &palmas_ddata, + }, + { + .compatible = "ti,tps65917-pmic", + .data = &tps65917_ddata, + }, + { /* end */ } +}; + +static int palmas_regulators_probe(struct platform_device *pdev) +{ + struct palmas *palmas = dev_get_drvdata(pdev->dev.parent); + struct palmas_pmic_platform_data *pdata = dev_get_platdata(&pdev->dev); + struct device_node *node = pdev->dev.of_node; + struct palmas_pmic_driver_data *driver_data; + struct regulator_config config = { }; + struct palmas_pmic *pmic; + const char *pdev_name; + const struct of_device_id *match; + int ret = 0; + unsigned int reg; + + match = of_match_device(of_match_ptr(of_palmas_match_tbl), &pdev->dev); + + if (!match) + return -ENODATA; + + driver_data = (struct palmas_pmic_driver_data *)match->data; + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL); + if (!pmic) + return -ENOMEM; + + if (of_device_is_compatible(node, "ti,tps659038-pmic")) { + palmas_generic_regs_info[PALMAS_REG_REGEN2].ctrl_addr = + TPS659038_REGEN2_CTRL; + palmas_ddata.has_regen3 = false; + } + + pmic->dev = &pdev->dev; + pmic->palmas = palmas; + palmas->pmic = pmic; + platform_set_drvdata(pdev, pmic); + pmic->palmas->pmic_ddata = driver_data; + + palmas_dt_to_pdata(&pdev->dev, node, pdata, driver_data); + + ret = palmas_smps_read(palmas, PALMAS_SMPS_CTRL, ®); + if (ret) + return ret; + + if (reg & PALMAS_SMPS_CTRL_SMPS12_SMPS123_EN) + pmic->smps123 = 1; + + if (reg & PALMAS_SMPS_CTRL_SMPS45_SMPS457_EN) + pmic->smps457 = 1; + + config.regmap = palmas->regmap[REGULATOR_SLAVE]; + config.dev = &pdev->dev; + config.driver_data = pmic; + pdev_name = pdev->name; + + ret = driver_data->smps_register(pmic, driver_data, pdata, pdev_name, + config); + if (ret) + return ret; + + ret = driver_data->ldo_register(pmic, driver_data, pdata, pdev_name, + config); + + return ret; +} + +static struct platform_driver palmas_driver = { + .driver = { + .name = "palmas-pmic", + .of_match_table = of_palmas_match_tbl, + }, + .probe = palmas_regulators_probe, +}; + +static int __init palmas_init(void) +{ + return platform_driver_register(&palmas_driver); +} +subsys_initcall(palmas_init); + +static void __exit palmas_exit(void) +{ + platform_driver_unregister(&palmas_driver); +} +module_exit(palmas_exit); + +MODULE_AUTHOR("Graeme Gregory <gg@slimlogic.co.uk>"); +MODULE_DESCRIPTION("Palmas voltage regulator driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:palmas-pmic"); +MODULE_DEVICE_TABLE(of, of_palmas_match_tbl); |