mirror of
https://github.com/torvalds/linux
synced 2024-10-03 01:43:05 +00:00
c2c80ecdb4
A bunch of fixes that came in during the merge window, Matti found several issues with some of the more complexly configured Rohm regulators and the helpers they use and there were some errors in the specification of tps6594 when regulators are grouped together. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmZPLEoACgkQJNaLcl1U h9DNfQf7B5ppKeMfWEzJKGywWmmzG96AldSvl7rcMyFxdzXjFu/kptGO0tLkJwTs DnlZF6TBooB/RezoHhVgq6nLtJcowQPlbhM3Y4gujzvumZiJ2k2Chsyy+H0YRvkZ kC9Bb2VGk7v5PimZiSugwgc1ZF+AE3LsZyzwWo4d0LZxOE1EyeQQ3SzygoKXtqzF QJxsT6+ynaeYBxVwW+pHztWca8b3o+kqNLauxcWb0J0sPJPu/dl2PIQrKIZBsOWC E34Y8MrrktqPApGE7kVL7dkmofceZI7Qv71aq2UJvRJOhvWP47f2L7nYwYi3kuIH EjioQuqa1Bf7Wms59Q68WLjn4e0ILA== =NeiV -----END PGP SIGNATURE----- Merge tag 'regulator-fix-v6.10-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator Pull regulator fixes from Mark Brown: "A bunch of fixes that came in during the merge window. Matti found several issues with some of the more complexly configured Rohm regulators and the helpers they use and there were some errors in the specification of tps6594 when regulators are grouped together" * tag 'regulator-fix-v6.10-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: regulator: tps6594-regulator: Correct multi-phase configuration regulator: tps6287x: Force writing VSEL bit regulator: pickable ranges: don't always cache vsel regulator: rohm-regulator: warn if unsupported voltage is set regulator: bd71828: Don't overwrite runtime voltages
811 lines
27 KiB
C
811 lines
27 KiB
C
// 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 == LP8764) {
|
|
nr_buck = ARRAY_SIZE(buck_regs);
|
|
nr_ldo = 0;
|
|
nr_types = REGS_INT_NB;
|
|
} else if (tps->chip_id == TPS65224) {
|
|
nr_buck = ARRAY_SIZE(tps65224_buck_regs);
|
|
nr_ldo = ARRAY_SIZE(tps65224_ldo_regs);
|
|
nr_types = REGS_INT_NB;
|
|
} else {
|
|
nr_buck = ARRAY_SIZE(buck_regs);
|
|
nr_ldo = ARRAY_SIZE(tps6594_ldo_regs);
|
|
nr_types = TPS65224_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");
|