// SPDX-License-Identifier: GPL-2.0
//
// Regulator driver for tps6594 PMIC
//
// Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/
#include <linux/device.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/of_regulator.h>
#include <linux/mfd/tps6594.h>
#define BUCK_NB 5
#define LDO_NB 4
#define MULTI_PHASE_NB 4
/* TPS6593 and LP8764 supports OV, UV, SC, ILIM */
#define REGS_INT_NB 4
/* TPS65224 supports OV or UV */
#define TPS65224_REGS_INT_NB 1
enum tps6594_regulator_id {
/* DCDC's */
TPS6594_BUCK_1,
TPS6594_BUCK_2,
TPS6594_BUCK_3,
TPS6594_BUCK_4,
TPS6594_BUCK_5,
/* LDOs */
TPS6594_LDO_1,
TPS6594_LDO_2,
TPS6594_LDO_3,
TPS6594_LDO_4,
};
enum tps6594_multi_regulator_id {
/* Multi-phase DCDC's */
TPS6594_BUCK_12,
TPS6594_BUCK_34,
TPS6594_BUCK_123,
TPS6594_BUCK_1234,
};
struct tps6594_regulator_irq_type {
const char *irq_name;
const char *regulator_name;
const char *event_name;
unsigned long event;
};
static struct tps6594_regulator_irq_type tps6594_ext_regulator_irq_types[] = {
{ TPS6594_IRQ_NAME_VCCA_OV, "VCCA", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_VCCA_UV, "VCCA", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ TPS6594_IRQ_NAME_VMON1_OV, "VMON1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_VMON1_UV, "VMON1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ TPS6594_IRQ_NAME_VMON1_RV, "VMON1", "residual voltage",
REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_VMON2_OV, "VMON2", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_VMON2_UV, "VMON2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ TPS6594_IRQ_NAME_VMON2_RV, "VMON2", "residual voltage",
REGULATOR_EVENT_OVER_VOLTAGE_WARN },
};
static struct tps6594_regulator_irq_type tps65224_ext_regulator_irq_types[] = {
{ TPS65224_IRQ_NAME_VCCA_UVOV, "VCCA", "voltage out of range",
REGULATOR_EVENT_REGULATION_OUT },
{ TPS65224_IRQ_NAME_VMON1_UVOV, "VMON1", "voltage out of range",
REGULATOR_EVENT_REGULATION_OUT },
{ TPS65224_IRQ_NAME_VMON2_UVOV, "VMON2", "voltage out of range",
REGULATOR_EVENT_REGULATION_OUT },
};
struct tps6594_regulator_irq_data {
struct device *dev;
struct tps6594_regulator_irq_type *type;
struct regulator_dev *rdev;
};
struct tps6594_ext_regulator_irq_data {
struct device *dev;
struct tps6594_regulator_irq_type *type;
};
#define TPS6594_REGULATOR(_name, _of, _id, _type, _ops, _n, _vr, _vm, _er, \
_em, _cr, _cm, _lr, _nlr, _delay, _fuv, \
_ct, _ncl, _bpm) \
{ \
.name = _name, \
.of_match = _of, \
.regulators_node = of_match_ptr("regulators"), \
.supply_name = _of, \
.id = _id, \
.ops = &(_ops), \
.n_voltages = _n, \
.type = _type, \
.owner = THIS_MODULE, \
.vsel_reg = _vr, \
.vsel_mask = _vm, \
.csel_reg = _cr, \
.csel_mask = _cm, \
.curr_table = _ct, \
.n_current_limits = _ncl, \
.enable_reg = _er, \
.enable_mask = _em, \
.volt_table = NULL, \
.linear_ranges = _lr, \
.n_linear_ranges = _nlr, \
.ramp_delay = _delay, \
.fixed_uV = _fuv, \
.bypass_reg = _vr, \
.bypass_mask = _bpm, \
} \
static const struct linear_range bucks_ranges[] = {
REGULATOR_LINEAR_RANGE(300000, 0x0, 0xe, 20000),
REGULATOR_LINEAR_RANGE(600000, 0xf, 0x72, 5000),
REGULATOR_LINEAR_RANGE(1100000, 0x73, 0xaa, 10000),
REGULATOR_LINEAR_RANGE(1660000, 0xab, 0xff, 20000),
};
static const struct linear_range ldos_1_2_3_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0x4, 0x3a, 50000),
};
static const struct linear_range ldos_4_ranges[] = {
REGULATOR_LINEAR_RANGE(1200000, 0x20, 0x74, 25000),
};
/* Voltage range for TPS65224 Bucks and LDOs */
static const struct linear_range tps65224_bucks_1_ranges[] = {
REGULATOR_LINEAR_RANGE(500000, 0x0a, 0x0e, 20000),
REGULATOR_LINEAR_RANGE(600000, 0x0f, 0x72, 5000),
REGULATOR_LINEAR_RANGE(1100000, 0x73, 0xaa, 10000),
REGULATOR_LINEAR_RANGE(1660000, 0xab, 0xfd, 20000),
};
static const struct linear_range tps65224_bucks_2_3_4_ranges[] = {
REGULATOR_LINEAR_RANGE(500000, 0x0, 0x1a, 25000),
REGULATOR_LINEAR_RANGE(1200000, 0x1b, 0x45, 50000),
};
static const struct linear_range tps65224_ldos_1_ranges[] = {
REGULATOR_LINEAR_RANGE(1200000, 0xC, 0x36, 50000),
};
static const struct linear_range tps65224_ldos_2_3_ranges[] = {
REGULATOR_LINEAR_RANGE(600000, 0x0, 0x38, 50000),
};
/* Operations permitted on BUCK1/2/3/4/5 */
static const struct regulator_ops tps6594_bucks_ops = {
.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_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
/* Operations permitted on LDO1/2/3 */
static const struct regulator_ops tps6594_ldos_1_2_3_ops = {
.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_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_bypass = regulator_set_bypass_regmap,
.get_bypass = regulator_get_bypass_regmap,
};
/* Operations permitted on LDO4 */
static const struct regulator_ops tps6594_ldos_4_ops = {
.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_range,
.map_voltage = regulator_map_voltage_linear_range,
};
static const struct regulator_desc buck_regs[] = {
TPS6594_REGULATOR("BUCK1", "buck1", TPS6594_BUCK_1,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_VOUT_1(0),
TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(0),
TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
4, 0, 0, NULL, 0, 0),
TPS6594_REGULATOR("BUCK2", "buck2", TPS6594_BUCK_2,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_VOUT_1(1),
TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(1),
TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
4, 0, 0, NULL, 0, 0),
TPS6594_REGULATOR("BUCK3", "buck3", TPS6594_BUCK_3,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_VOUT_1(2),
TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(2),
TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
4, 0, 0, NULL, 0, 0),
TPS6594_REGULATOR("BUCK4", "buck4", TPS6594_BUCK_4,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_VOUT_1(3),
TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(3),
TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
4, 0, 0, NULL, 0, 0),
TPS6594_REGULATOR("BUCK5", "buck5", TPS6594_BUCK_5,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_VOUT_1(4),
TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(4),
TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
4, 0, 0, NULL, 0, 0),
};
/* Buck configuration for TPS65224 */
static const struct regulator_desc tps65224_buck_regs[] = {
TPS6594_REGULATOR("BUCK1", "buck1", TPS6594_BUCK_1,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCK1_VSET,
TPS6594_REG_BUCKX_VOUT_1(0),
TPS65224_MASK_BUCK1_VSET,
TPS6594_REG_BUCKX_CTRL(0),
TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_1_ranges,
4, 0, 0, NULL, 0, 0),
TPS6594_REGULATOR("BUCK2", "buck2", TPS6594_BUCK_2,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_VOUT_1(1),
TPS65224_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(1),
TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_2_3_4_ranges,
4, 0, 0, NULL, 0, 0),
TPS6594_REGULATOR("BUCK3", "buck3", TPS6594_BUCK_3,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_VOUT_1(2),
TPS65224_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(2),
TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_2_3_4_ranges,
4, 0, 0, NULL, 0, 0),
TPS6594_REGULATOR("BUCK4", "buck4", TPS6594_BUCK_4,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_VOUT_1(3),
TPS65224_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(3),
TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_2_3_4_ranges,
4, 0, 0, NULL, 0, 0),
};
static struct tps6594_regulator_irq_type tps6594_buck1_irq_types[] = {
{ TPS6594_IRQ_NAME_BUCK1_OV, "BUCK1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_BUCK1_UV, "BUCK1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ TPS6594_IRQ_NAME_BUCK1_SC, "BUCK1", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
{ TPS6594_IRQ_NAME_BUCK1_ILIM, "BUCK1", "reach ilim, overcurrent",
REGULATOR_EVENT_OVER_CURRENT },
};
static struct tps6594_regulator_irq_type tps6594_buck2_irq_types[] = {
{ TPS6594_IRQ_NAME_BUCK2_OV, "BUCK2", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_BUCK2_UV, "BUCK2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ TPS6594_IRQ_NAME_BUCK2_SC, "BUCK2", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
{ TPS6594_IRQ_NAME_BUCK2_ILIM, "BUCK2", "reach ilim, overcurrent",
REGULATOR_EVENT_OVER_CURRENT },
};
static struct tps6594_regulator_irq_type tps6594_buck3_irq_types[] = {
{ TPS6594_IRQ_NAME_BUCK3_OV, "BUCK3", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_BUCK3_UV, "BUCK3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ TPS6594_IRQ_NAME_BUCK3_SC, "BUCK3", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
{ TPS6594_IRQ_NAME_BUCK3_ILIM, "BUCK3", "reach ilim, overcurrent",
REGULATOR_EVENT_OVER_CURRENT },
};
static struct tps6594_regulator_irq_type tps6594_buck4_irq_types[] = {
{ TPS6594_IRQ_NAME_BUCK4_OV, "BUCK4", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_BUCK4_UV, "BUCK4", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ TPS6594_IRQ_NAME_BUCK4_SC, "BUCK4", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
{ TPS6594_IRQ_NAME_BUCK4_ILIM, "BUCK4", "reach ilim, overcurrent",
REGULATOR_EVENT_OVER_CURRENT },
};
static struct tps6594_regulator_irq_type tps6594_buck5_irq_types[] = {
{ TPS6594_IRQ_NAME_BUCK5_OV, "BUCK5", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_BUCK5_UV, "BUCK5", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ TPS6594_IRQ_NAME_BUCK5_SC, "BUCK5", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
{ TPS6594_IRQ_NAME_BUCK5_ILIM, "BUCK5", "reach ilim, overcurrent",
REGULATOR_EVENT_OVER_CURRENT },
};
static struct tps6594_regulator_irq_type tps6594_ldo1_irq_types[] = {
{ TPS6594_IRQ_NAME_LDO1_OV, "LDO1", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_LDO1_UV, "LDO1", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ TPS6594_IRQ_NAME_LDO1_SC, "LDO1", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
{ TPS6594_IRQ_NAME_LDO1_ILIM, "LDO1", "reach ilim, overcurrent",
REGULATOR_EVENT_OVER_CURRENT },
};
static struct tps6594_regulator_irq_type tps6594_ldo2_irq_types[] = {
{ TPS6594_IRQ_NAME_LDO2_OV, "LDO2", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_LDO2_UV, "LDO2", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ TPS6594_IRQ_NAME_LDO2_SC, "LDO2", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
{ TPS6594_IRQ_NAME_LDO2_ILIM, "LDO2", "reach ilim, overcurrent",
REGULATOR_EVENT_OVER_CURRENT },
};
static struct tps6594_regulator_irq_type tps6594_ldo3_irq_types[] = {
{ TPS6594_IRQ_NAME_LDO3_OV, "LDO3", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_LDO3_UV, "LDO3", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ TPS6594_IRQ_NAME_LDO3_SC, "LDO3", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
{ TPS6594_IRQ_NAME_LDO3_ILIM, "LDO3", "reach ilim, overcurrent",
REGULATOR_EVENT_OVER_CURRENT },
};
static struct tps6594_regulator_irq_type tps6594_ldo4_irq_types[] = {
{ TPS6594_IRQ_NAME_LDO4_OV, "LDO4", "overvoltage", REGULATOR_EVENT_OVER_VOLTAGE_WARN },
{ TPS6594_IRQ_NAME_LDO4_UV, "LDO4", "undervoltage", REGULATOR_EVENT_UNDER_VOLTAGE },
{ TPS6594_IRQ_NAME_LDO4_SC, "LDO4", "short circuit", REGULATOR_EVENT_REGULATION_OUT },
{ TPS6594_IRQ_NAME_LDO4_ILIM, "LDO4", "reach ilim, overcurrent",
REGULATOR_EVENT_OVER_CURRENT },
};
static struct tps6594_regulator_irq_type tps65224_buck1_irq_types[] = {
{ TPS65224_IRQ_NAME_BUCK1_UVOV, "BUCK1", "voltage out of range",
REGULATOR_EVENT_REGULATION_OUT },
};
static struct tps6594_regulator_irq_type tps65224_buck2_irq_types[] = {
{ TPS65224_IRQ_NAME_BUCK2_UVOV, "BUCK2", "voltage out of range",
REGULATOR_EVENT_REGULATION_OUT },
};
static struct tps6594_regulator_irq_type tps65224_buck3_irq_types[] = {
{ TPS65224_IRQ_NAME_BUCK3_UVOV, "BUCK3", "voltage out of range",
REGULATOR_EVENT_REGULATION_OUT },
};
static struct tps6594_regulator_irq_type tps65224_buck4_irq_types[] = {
{ TPS65224_IRQ_NAME_BUCK4_UVOV, "BUCK4", "voltage out of range",
REGULATOR_EVENT_REGULATION_OUT },
};
static struct tps6594_regulator_irq_type tps65224_ldo1_irq_types[] = {
{ TPS65224_IRQ_NAME_LDO1_UVOV, "LDO1", "voltage out of range",
REGULATOR_EVENT_REGULATION_OUT },
};
static struct tps6594_regulator_irq_type tps65224_ldo2_irq_types[] = {
{ TPS65224_IRQ_NAME_LDO2_UVOV, "LDO2", "voltage out of range",
REGULATOR_EVENT_REGULATION_OUT },
};
static struct tps6594_regulator_irq_type tps65224_ldo3_irq_types[] = {
{ TPS65224_IRQ_NAME_LDO3_UVOV, "LDO3", "voltage out of range",
REGULATOR_EVENT_REGULATION_OUT },
};
static struct tps6594_regulator_irq_type *tps6594_bucks_irq_types[] = {
tps6594_buck1_irq_types,
tps6594_buck2_irq_types,
tps6594_buck3_irq_types,
tps6594_buck4_irq_types,
tps6594_buck5_irq_types,
};
static struct tps6594_regulator_irq_type *tps6594_ldos_irq_types[] = {
tps6594_ldo1_irq_types,
tps6594_ldo2_irq_types,
tps6594_ldo3_irq_types,
tps6594_ldo4_irq_types,
};
static struct tps6594_regulator_irq_type *tps65224_bucks_irq_types[] = {
tps65224_buck1_irq_types,
tps65224_buck2_irq_types,
tps65224_buck3_irq_types,
tps65224_buck4_irq_types,
};
static struct tps6594_regulator_irq_type *tps65224_ldos_irq_types[] = {
tps65224_ldo1_irq_types,
tps65224_ldo2_irq_types,
tps65224_ldo3_irq_types,
};
static const struct regulator_desc tps6594_multi_regs[] = {
TPS6594_REGULATOR("BUCK12", "buck12", TPS6594_BUCK_1,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_VOUT_1(0),
TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(0),
TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
4, 4000, 0, NULL, 0, 0),
TPS6594_REGULATOR("BUCK34", "buck34", TPS6594_BUCK_3,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_VOUT_1(2),
TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(2),
TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
4, 0, 0, NULL, 0, 0),
TPS6594_REGULATOR("BUCK123", "buck123", TPS6594_BUCK_1,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_VOUT_1(0),
TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(0),
TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
4, 4000, 0, NULL, 0, 0),
TPS6594_REGULATOR("BUCK1234", "buck1234", TPS6594_BUCK_1,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_VOUT_1(0),
TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(0),
TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
4, 4000, 0, NULL, 0, 0),
};
static const struct regulator_desc tps65224_multi_regs[] = {
TPS6594_REGULATOR("BUCK12", "buck12", TPS6594_BUCK_1,
REGULATOR_VOLTAGE, tps6594_bucks_ops, TPS65224_MASK_BUCK1_VSET,
TPS6594_REG_BUCKX_VOUT_1(0),
TPS65224_MASK_BUCK1_VSET,
TPS6594_REG_BUCKX_CTRL(0),
TPS6594_BIT_BUCK_EN, 0, 0, tps65224_bucks_1_ranges,
4, 4000, 0, NULL, 0, 0),
};
static const struct regulator_desc tps6594_ldo_regs[] = {
TPS6594_REGULATOR("LDO1", "ldo1", TPS6594_LDO_1,
REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
TPS6594_REG_LDOX_VOUT(0),
TPS6594_MASK_LDO123_VSET,
TPS6594_REG_LDOX_CTRL(0),
TPS6594_BIT_LDO_EN, 0, 0, ldos_1_2_3_ranges,
1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
TPS6594_REGULATOR("LDO2", "ldo2", TPS6594_LDO_2,
REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
TPS6594_REG_LDOX_VOUT(1),
TPS6594_MASK_LDO123_VSET,
TPS6594_REG_LDOX_CTRL(1),
TPS6594_BIT_LDO_EN, 0, 0, ldos_1_2_3_ranges,
1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
TPS6594_REGULATOR("LDO3", "ldo3", TPS6594_LDO_3,
REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
TPS6594_REG_LDOX_VOUT(2),
TPS6594_MASK_LDO123_VSET,
TPS6594_REG_LDOX_CTRL(2),
TPS6594_BIT_LDO_EN, 0, 0, ldos_1_2_3_ranges,
1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
TPS6594_REGULATOR("LDO4", "ldo4", TPS6594_LDO_4,
REGULATOR_VOLTAGE, tps6594_ldos_4_ops, TPS6594_MASK_LDO4_VSET >> 1,
TPS6594_REG_LDOX_VOUT(3),
TPS6594_MASK_LDO4_VSET,
TPS6594_REG_LDOX_CTRL(3),
TPS6594_BIT_LDO_EN, 0, 0, ldos_4_ranges,
1, 0, 0, NULL, 0, 0),
};
static const struct regulator_desc tps65224_ldo_regs[] = {
TPS6594_REGULATOR("LDO1", "ldo1", TPS6594_LDO_1,
REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
TPS6594_REG_LDOX_VOUT(0),
TPS6594_MASK_LDO123_VSET,
TPS6594_REG_LDOX_CTRL(0),
TPS6594_BIT_LDO_EN, 0, 0, tps65224_ldos_1_ranges,
1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
TPS6594_REGULATOR("LDO2", "ldo2", TPS6594_LDO_2,
REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
TPS6594_REG_LDOX_VOUT(1),
TPS6594_MASK_LDO123_VSET,
TPS6594_REG_LDOX_CTRL(1),
TPS6594_BIT_LDO_EN, 0, 0, tps65224_ldos_2_3_ranges,
1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
TPS6594_REGULATOR("LDO3", "ldo3", TPS6594_LDO_3,
REGULATOR_VOLTAGE, tps6594_ldos_1_2_3_ops, TPS6594_MASK_LDO123_VSET,
TPS6594_REG_LDOX_VOUT(2),
TPS6594_MASK_LDO123_VSET,
TPS6594_REG_LDOX_CTRL(2),
TPS6594_BIT_LDO_EN, 0, 0, tps65224_ldos_2_3_ranges,
1, 0, 0, NULL, 0, TPS6594_BIT_LDO_BYPASS),
};
static irqreturn_t tps6594_regulator_irq_handler(int irq, void *data)
{
struct tps6594_regulator_irq_data *irq_data = data;
if (irq_data->type->event_name[0] == '\0') {
/* This is the timeout interrupt no specific regulator */
dev_err(irq_data->dev,
"System was put in shutdown due to timeout during an active or standby transition.\n");
return IRQ_HANDLED;
}
dev_err(irq_data->dev, "Error IRQ trap %s for %s\n",
irq_data->type->event_name, irq_data->type->regulator_name);
regulator_notifier_call_chain(irq_data->rdev,
irq_data->type->event, NULL);
return IRQ_HANDLED;
}
static int tps6594_request_reg_irqs(struct platform_device *pdev,
struct regulator_dev *rdev,
struct tps6594_regulator_irq_data *irq_data,
struct tps6594_regulator_irq_type *regs_irq_types,
size_t interrupt_cnt,
int *irq_idx)
{
struct tps6594_regulator_irq_type *irq_type;
struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent);
size_t j;
int irq;
int error;
for (j = 0; j < interrupt_cnt; j++) {
irq_type = ®s_irq_types[j];
irq = platform_get_irq_byname(pdev, irq_type->irq_name);
if (irq < 0)
return -EINVAL;
irq_data[*irq_idx].dev = tps->dev;
irq_data[*irq_idx].type = irq_type;
irq_data[*irq_idx].rdev = rdev;
error = devm_request_threaded_irq(tps->dev, irq, NULL,
tps6594_regulator_irq_handler, IRQF_ONESHOT,
irq_type->irq_name, &irq_data[*irq_idx]);
if (error) {
dev_err(tps->dev, "tps6594 failed to request %s IRQ %d: %d\n",
irq_type->irq_name, irq, error);
return error;
}
(*irq_idx)++;
}
return 0;
}
static int tps6594_regulator_probe(struct platform_device *pdev)
{
struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent);
struct regulator_dev *rdev;
struct device_node *np = NULL;
struct device_node *np_pmic_parent = NULL;
struct regulator_config config = {};
struct tps6594_regulator_irq_data *irq_data;
struct tps6594_ext_regulator_irq_data *irq_ext_reg_data;
struct tps6594_regulator_irq_type *irq_type;
struct tps6594_regulator_irq_type *irq_types;
bool buck_configured[BUCK_NB] = { false };
bool buck_multi[MULTI_PHASE_NB] = { false };
static const char *npname;
int error, i, irq, multi;
int irq_idx = 0;
int buck_idx = 0;
int nr_ldo;
int nr_buck;
int nr_types;
unsigned int irq_count;
unsigned int multi_phase_cnt;
size_t reg_irq_nb;
struct tps6594_regulator_irq_type **bucks_irq_types;
const struct regulator_desc *multi_regs;
struct tps6594_regulator_irq_type **ldos_irq_types;
const struct regulator_desc *ldo_regs;
size_t interrupt_count;
if (tps->chip_id == TPS65224) {
bucks_irq_types = tps65224_bucks_irq_types;
interrupt_count = ARRAY_SIZE(tps65224_buck1_irq_types);
multi_regs = tps65224_multi_regs;
ldos_irq_types = tps65224_ldos_irq_types;
ldo_regs = tps65224_ldo_regs;
multi_phase_cnt = ARRAY_SIZE(tps65224_multi_regs);
} else {
bucks_irq_types = tps6594_bucks_irq_types;
interrupt_count = ARRAY_SIZE(tps6594_buck1_irq_types);
multi_regs = tps6594_multi_regs;
ldos_irq_types = tps6594_ldos_irq_types;
ldo_regs = tps6594_ldo_regs;
multi_phase_cnt = ARRAY_SIZE(tps6594_multi_regs);
}
enum {
MULTI_BUCK12,
MULTI_BUCK12_34,
MULTI_BUCK123,
MULTI_BUCK1234,
};
config.dev = tps->dev;
config.driver_data = tps;
config.regmap = tps->regmap;
/*
* Switch case defines different possible multi phase config
* This is based on dts buck node name.
* Buck node name must be chosen accordingly.
* Default case is no Multiphase buck.
* In case of Multiphase configuration, value should be defined for
* buck_configured to avoid creating bucks for every buck in multiphase
*/
for (multi = 0; multi < multi_phase_cnt; multi++) {
np = of_find_node_by_name(tps->dev->of_node, multi_regs[multi].supply_name);
npname = of_node_full_name(np);
np_pmic_parent = of_get_parent(of_get_parent(np));
if (of_node_cmp(of_node_full_name(np_pmic_parent), tps->dev->of_node->full_name))
continue;
if (strcmp(npname, multi_regs[multi].supply_name) == 0) {
switch (multi) {
case MULTI_BUCK12:
buck_multi[0] = true;
buck_configured[0] = true;
buck_configured[1] = true;
break;
/* multiphase buck34 is supported only with buck12 */
case MULTI_BUCK12_34:
buck_multi[0] = true;
buck_multi[1] = true;
buck_configured[0] = true;
buck_configured[1] = true;
buck_configured[2] = true;
buck_configured[3] = true;
break;
case MULTI_BUCK123:
buck_multi[2] = true;
buck_configured[0] = true;
buck_configured[1] = true;
buck_configured[2] = true;
break;
case MULTI_BUCK1234:
buck_multi[3] = true;
buck_configured[0] = true;
buck_configured[1] = true;
buck_configured[2] = true;
buck_configured[3] = true;
break;
}
}
}
if (tps->chip_id == TPS65224) {
nr_buck = ARRAY_SIZE(tps65224_buck_regs);
nr_ldo = ARRAY_SIZE(tps65224_ldo_regs);
nr_types = TPS65224_REGS_INT_NB;
} else {
nr_buck = ARRAY_SIZE(buck_regs);
nr_ldo = (tps->chip_id == LP8764) ? 0 : ARRAY_SIZE(tps6594_ldo_regs);
nr_types = REGS_INT_NB;
}
reg_irq_nb = nr_types * (nr_buck + nr_ldo);
irq_data = devm_kmalloc_array(tps->dev, reg_irq_nb,
sizeof(struct tps6594_regulator_irq_data), GFP_KERNEL);
if (!irq_data)
return -ENOMEM;
for (i = 0; i < multi_phase_cnt; i++) {
if (!buck_multi[i])
continue;
rdev = devm_regulator_register(&pdev->dev, &multi_regs[i], &config);
if (IS_ERR(rdev))
return dev_err_probe(tps->dev, PTR_ERR(rdev),
"failed to register %s regulator\n",
pdev->name);
/* config multiphase buck12+buck34 */
if (i == MULTI_BUCK12_34)
buck_idx = 2;
error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
bucks_irq_types[buck_idx],
interrupt_count, &irq_idx);
if (error)
return error;
error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
bucks_irq_types[buck_idx + 1],
interrupt_count, &irq_idx);
if (error)
return error;
if (i == MULTI_BUCK123 || i == MULTI_BUCK1234) {
error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
tps6594_bucks_irq_types[buck_idx + 2],
interrupt_count,
&irq_idx);
if (error)
return error;
}
if (i == MULTI_BUCK1234) {
error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
tps6594_bucks_irq_types[buck_idx + 3],
interrupt_count,
&irq_idx);
if (error)
return error;
}
}
for (i = 0; i < nr_buck; i++) {
if (buck_configured[i])
continue;
const struct regulator_desc *buck_cfg = (tps->chip_id == TPS65224) ?
tps65224_buck_regs : buck_regs;
rdev = devm_regulator_register(&pdev->dev, &buck_cfg[i], &config);
if (IS_ERR(rdev))
return dev_err_probe(tps->dev, PTR_ERR(rdev),
"failed to register %s regulator\n", pdev->name);
error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
bucks_irq_types[i], interrupt_count, &irq_idx);
if (error)
return error;
}
/* LP8764 doesn't have LDO */
if (tps->chip_id != LP8764) {
for (i = 0; i < nr_ldo; i++) {
rdev = devm_regulator_register(&pdev->dev, &ldo_regs[i], &config);
if (IS_ERR(rdev))
return dev_err_probe(tps->dev, PTR_ERR(rdev),
"failed to register %s regulator\n",
pdev->name);
error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
ldos_irq_types[i], interrupt_count,
&irq_idx);
if (error)
return error;
}
}
if (tps->chip_id == TPS65224) {
irq_types = tps65224_ext_regulator_irq_types;
irq_count = ARRAY_SIZE(tps65224_ext_regulator_irq_types);
} else {
irq_types = tps6594_ext_regulator_irq_types;
if (tps->chip_id == LP8764)
irq_count = ARRAY_SIZE(tps6594_ext_regulator_irq_types);
else
/* TPS6593 supports only VCCA OV and UV */
irq_count = 2;
}
irq_ext_reg_data = devm_kmalloc_array(tps->dev,
irq_count,
sizeof(struct tps6594_ext_regulator_irq_data),
GFP_KERNEL);
if (!irq_ext_reg_data)
return -ENOMEM;
for (i = 0; i < irq_count; ++i) {
irq_type = &irq_types[i];
irq = platform_get_irq_byname(pdev, irq_type->irq_name);
if (irq < 0)
return -EINVAL;
irq_ext_reg_data[i].dev = tps->dev;
irq_ext_reg_data[i].type = irq_type;
error = devm_request_threaded_irq(tps->dev, irq, NULL,
tps6594_regulator_irq_handler,
IRQF_ONESHOT,
irq_type->irq_name,
&irq_ext_reg_data[i]);
if (error)
return dev_err_probe(tps->dev, error,
"failed to request %s IRQ %d\n",
irq_type->irq_name, irq);
}
return 0;
}
static struct platform_driver tps6594_regulator_driver = {
.driver = {
.name = "tps6594-regulator",
},
.probe = tps6594_regulator_probe,
};
module_platform_driver(tps6594_regulator_driver);
MODULE_ALIAS("platform:tps6594-regulator");
MODULE_AUTHOR("Jerome Neanne <[email protected]>");
MODULE_AUTHOR("Nirmala Devi Mal Nadar <[email protected]>");
MODULE_DESCRIPTION("TPS6594 voltage regulator driver");
MODULE_LICENSE("GPL");
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