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linux/drivers/regulator/tps6594-regulator.c
Thomas Richard 8141b6da17
regulator: tps6594-regulator: Fix the number of irqs for TPS65224 and TPS6594 
The number of irqs is computed to allocate the right amount of memory for
the irq data. An array of struct tps6594_regulator_irq_data is allocated
one time for all the irqs. Each irq uses one cell of the array.

If the computed number of irqs is not correct, not allocated memory could
be used.

Fix the	values used in the calculation for TPS6594 and TPS65224.

Fixes: 00c826525f (regulator: tps6594-regulator: Add TI TPS65224 PMIC regulators)
Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
Tested-by: Nishanth Menon <nm@ti.com>
Link: https://msgid.link/r/20240603170100.2394402-1-thomas.richard@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2024-06-04 13:22:18 +01:00

807 lines
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// 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 = &regs_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 <jneanne@baylibre.com>");
MODULE_AUTHOR("Nirmala Devi Mal Nadar <m.nirmaladevi@ltts.com>");
MODULE_DESCRIPTION("TPS6594 voltage regulator driver");
MODULE_LICENSE("GPL");
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