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linux/drivers/regulator/tps6594-regulator.c
Rob Herring 045a44d4c9
regulator: Explicitly include correct DT includes 
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.

Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230714174930.4063320-1-robh@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2023-07-14 20:52:54 +01:00

616 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
#define REGS_INT_NB 4
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 },
};
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),
};
/* 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),
};
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 *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 const struct regulator_desc multi_regs[] = {
TPS6594_REGULATOR("BUCK12", "buck12", TPS6594_BUCK_1,
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, 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(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("BUCK123", "buck123", TPS6594_BUCK_1,
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, 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(1),
TPS6594_MASK_BUCKS_VSET,
TPS6594_REG_BUCKX_CTRL(1),
TPS6594_BIT_BUCK_EN, 0, 0, bucks_ranges,
4, 4000, 0, NULL, 0, 0),
};
static const struct regulator_desc 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 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 *tps6594_regs_irq_types,
int *irq_idx)
{
struct tps6594_regulator_irq_type *irq_type;
struct tps6594 *tps = dev_get_drvdata(pdev->dev.parent);
int j;
int irq;
int error;
for (j = 0; j < REGS_INT_NB; j++) {
irq_type = &tps6594_regs_irq_types[j];
irq = platform_get_irq_byname(pdev, irq_type->irq_name);
if (irq < 0)
return -EINVAL;
irq_data[*irq_idx + j].dev = tps->dev;
irq_data[*irq_idx + j].type = irq_type;
irq_data[*irq_idx + j].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]);
(*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;
}
}
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;
u8 buck_configured[BUCK_NB] = { 0 };
u8 buck_multi[MULTI_PHASE_NB] = { 0 };
static const char * const multiphases[] = {"buck12", "buck123", "buck1234", "buck34"};
static const char *npname;
int error, i, irq, multi, delta;
int irq_idx = 0;
int buck_idx = 0;
int ext_reg_irq_nb = 2;
enum {
MULTI_BUCK12,
MULTI_BUCK123,
MULTI_BUCK1234,
MULTI_BUCK12_34,
MULTI_FIRST = MULTI_BUCK12,
MULTI_LAST = MULTI_BUCK12_34,
MULTI_NUM = MULTI_LAST - MULTI_FIRST + 1
};
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 = MULTI_FIRST; multi < MULTI_NUM; multi++) {
np = of_find_node_by_name(tps->dev->of_node, multiphases[multi]);
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;
delta = strcmp(npname, multiphases[multi]);
if (!delta) {
switch (multi) {
case MULTI_BUCK12:
buck_multi[0] = 1;
buck_configured[0] = 1;
buck_configured[1] = 1;
break;
/* multiphase buck34 is supported only with buck12 */
case MULTI_BUCK12_34:
buck_multi[0] = 1;
buck_multi[1] = 1;
buck_configured[0] = 1;
buck_configured[1] = 1;
buck_configured[2] = 1;
buck_configured[3] = 1;
break;
case MULTI_BUCK123:
buck_multi[2] = 1;
buck_configured[0] = 1;
buck_configured[1] = 1;
buck_configured[2] = 1;
break;
case MULTI_BUCK1234:
buck_multi[3] = 1;
buck_configured[0] = 1;
buck_configured[1] = 1;
buck_configured[2] = 1;
buck_configured[3] = 1;
break;
}
}
}
if (tps->chip_id == LP8764)
/* There is only 4 buck on LP8764 */
buck_configured[4] = 1;
irq_data = devm_kmalloc_array(tps->dev,
REGS_INT_NB * sizeof(struct tps6594_regulator_irq_data),
ARRAY_SIZE(tps6594_bucks_irq_types) +
ARRAY_SIZE(tps6594_ldos_irq_types),
GFP_KERNEL);
if (!irq_data)
return -ENOMEM;
for (i = 0; i < MULTI_PHASE_NB; i++) {
if (buck_multi[i] == 0)
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 == 1)
buck_idx = 2;
error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
tps6594_bucks_irq_types[buck_idx], &irq_idx);
if (error)
return error;
error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
tps6594_bucks_irq_types[buck_idx + 1], &irq_idx);
if (error)
return error;
if (i == 2 || i == 3) {
error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
tps6594_bucks_irq_types[buck_idx + 2],
&irq_idx);
if (error)
return error;
}
if (i == 3) {
error = tps6594_request_reg_irqs(pdev, rdev, irq_data,
tps6594_bucks_irq_types[buck_idx + 3],
&irq_idx);
if (error)
return error;
}
}
for (i = 0; i < BUCK_NB; i++) {
if (buck_configured[i] == 1)
continue;
rdev = devm_regulator_register(&pdev->dev, &buck_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,
tps6594_bucks_irq_types[i], &irq_idx);
if (error)
return error;
}
/* LP8764 dosen't have LDO */
if (tps->chip_id != LP8764) {
for (i = 0; i < ARRAY_SIZE(ldo_regs); 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,
tps6594_ldos_irq_types[i],
&irq_idx);
if (error)
return error;
}
}
if (tps->chip_id == LP8764)
ext_reg_irq_nb = ARRAY_SIZE(tps6594_ext_regulator_irq_types);
irq_ext_reg_data = devm_kmalloc_array(tps->dev,
ext_reg_irq_nb,
sizeof(struct tps6594_ext_regulator_irq_data),
GFP_KERNEL);
if (!irq_ext_reg_data)
return -ENOMEM;
for (i = 0; i < ext_reg_irq_nb; ++i) {
irq_type = &tps6594_ext_regulator_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_DESCRIPTION("TPS6594 voltage regulator driver");
MODULE_LICENSE("GPL");
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