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kernel_samsung_a34x-permissive/drivers/regulator/mt6358-regulator.c

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Import A346BXXU1AWB9 kernel source Android 13
2024-04-28 06:49:01 -07:00
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 2016 MediaTek Inc.
*/
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/mfd/mt6358/core.h>
#include <linux/mfd/mt6358/registers.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/mt6358-regulator.h>
#include <linux/regulator/of_regulator.h>
#define MT6358_BUCK_MODE_AUTO 0
#define MT6358_BUCK_MODE_FORCE_PWM 1
#define DEF_OC_IRQ_ENABLE_DELAY_MS 10
/*
* MT6358 regulators' information
*
* @desc: standard fields of regulator description.
* @constraints: standard fields of regulator constraints.
* @da_reg: for query status of regulators.
* @qi: Mask for query enable signal status of regulators.
* @modeset_reg: for operating AUTO/PWM mode register.
* @modeset_mask: MASK for operating modeset register.
* @modeset_shift: SHIFT for operating modeset register.
*/
struct mt6358_regulator_info {
int irq;
int oc_irq_enable_delay_ms;
struct delayed_work oc_work;
struct regulator_desc desc;
struct regulation_constraints constraints;
u32 da_vsel_reg;
u32 da_vsel_mask;
u32 da_vsel_shift;
u32 da_reg;
u32 qi;
u32 modeset_reg;
u32 modeset_mask;
u32 modeset_shift;
};
/*
* MTK regulators' init data
*
* @id: chip id
* @size: num of regulators
* @regulator_info: regulator info.
*/
struct mt_regulator_init_data {
u32 id;
u32 size;
struct mt6358_regulator_info *regulator_info;
};
#define MT_BUCK_EN (REGULATOR_CHANGE_STATUS)
#define MT_BUCK_VOL (REGULATOR_CHANGE_VOLTAGE)
#define MT_BUCK_VOL_EN (REGULATOR_CHANGE_STATUS | \
REGULATOR_CHANGE_VOLTAGE)
#define MT_BUCK_VOL_EN_MODE (REGULATOR_CHANGE_STATUS | \
REGULATOR_CHANGE_VOLTAGE | \
REGULATOR_CHANGE_MODE)
#define MT_LDO_EN (REGULATOR_CHANGE_STATUS)
#define MT_LDO_VOL (REGULATOR_CHANGE_VOLTAGE)
#define MT_LDO_VOL_EN (REGULATOR_CHANGE_STATUS | \
REGULATOR_CHANGE_VOLTAGE)
#define MT_BUCK(match, _name, min, max, step, \
min_sel, volt_ranges, _enable_reg, \
_da_reg, \
_da_vsel_reg, _da_vsel_mask, _da_vsel_shift, \
_vsel_reg, _vsel_mask, \
mode, _modeset_reg, _modeset_shift) \
[MT6358_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_volt_range_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6358_ID_##_name, \
.owner = THIS_MODULE, \
.uV_step = (step), \
.linear_min_sel = (min_sel), \
.n_voltages = ((max) - (min)) / (step) + 1, \
.min_uV = (min), \
.linear_ranges = volt_ranges, \
.n_linear_ranges = ARRAY_SIZE(volt_ranges), \
.vsel_reg = _vsel_reg, \
.vsel_mask = _vsel_mask, \
.enable_reg = _enable_reg, \
.enable_mask = BIT(0), \
}, \
.constraints = { \
.valid_ops_mask = (mode), \
.valid_modes_mask = \
(REGULATOR_MODE_NORMAL | REGULATOR_MODE_FAST), \
}, \
.da_vsel_reg = _da_vsel_reg, \
.da_vsel_mask = _da_vsel_mask, \
.da_vsel_shift = _da_vsel_shift, \
.da_reg = _da_reg, \
.qi = BIT(0), \
.modeset_reg = _modeset_reg, \
.modeset_mask = BIT(_modeset_shift), \
.modeset_shift = _modeset_shift \
}
#define MT_LDO_REGULAR(match, _name, min, max, step, \
min_sel, volt_ranges, _enable_reg, \
_da_reg, \
_da_vsel_reg, _da_vsel_mask, _da_vsel_shift, \
_vsel_reg, _vsel_mask, \
mode) \
[MT6358_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_volt_range_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6358_ID_##_name, \
.owner = THIS_MODULE, \
.uV_step = (step), \
.linear_min_sel = (min_sel), \
.n_voltages = ((max) - (min)) / (step) + 1, \
.min_uV = (min), \
.linear_ranges = volt_ranges, \
.n_linear_ranges = ARRAY_SIZE(volt_ranges), \
.vsel_reg = _vsel_reg, \
.vsel_mask = _vsel_mask, \
.enable_reg = _enable_reg, \
.enable_mask = BIT(0), \
}, \
.constraints = { \
.valid_ops_mask = (mode), \
}, \
.da_vsel_reg = _da_vsel_reg, \
.da_vsel_mask = _da_vsel_mask, \
.da_vsel_shift = _da_vsel_shift, \
.da_reg = _da_reg, \
.qi = BIT(0), \
}
#define MT_LDO_NON_REGULAR(match, _name, \
_volt_table, _enable_reg, \
_da_reg, \
_vsel_reg, _vsel_mask, \
mode) \
[MT6358_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_volt_table_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6358_ID_##_name, \
.owner = THIS_MODULE, \
.n_voltages = ARRAY_SIZE(_volt_table), \
.volt_table = _volt_table, \
.vsel_reg = _vsel_reg, \
.vsel_mask = _vsel_mask, \
.enable_reg = _enable_reg, \
.enable_mask = BIT(0), \
}, \
.constraints = { \
.valid_ops_mask = (mode), \
}, \
.da_reg = _da_reg, \
.qi = BIT(15), \
}
#define MT_REG_FIXED(match, _name, _enable_reg, \
_da_reg, \
_fixed_volt, mode) \
[MT6358_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_volt_fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6358_ID_##_name, \
.owner = THIS_MODULE, \
.n_voltages = 1, \
.enable_reg = _enable_reg, \
.enable_mask = BIT(0), \
.fixed_uV = (_fixed_volt), \
}, \
.constraints = { \
.valid_ops_mask = (mode), \
}, \
.da_reg = _da_reg, \
.qi = BIT(15), \
}
#define MT6358_LDO_VMC_DESC(match, _name, volt_ranges, \
_enable_reg, _da_reg, _vsel_reg, _vsel_mask, mode)\
[MT6358_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.ops = &mt6358_vmc_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6358_ID_##_name, \
.owner = THIS_MODULE, \
.n_voltages = 0xd01, \
.linear_ranges = volt_ranges, \
.n_linear_ranges = ARRAY_SIZE(volt_ranges),\
.vsel_reg = _vsel_reg, \
.vsel_mask = _vsel_mask, \
.enable_reg = _enable_reg, \
.enable_mask = BIT(0), \
}, \
.constraints = { \
.valid_ops_mask = (mode), \
}, \
.da_reg = _da_reg, \
.qi = BIT(15), \
}
static const struct regulator_linear_range mt_volt_range1[] = {
REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250),
};
static const struct regulator_linear_range mt_volt_range2[] = {
REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 12500),
};
static const struct regulator_linear_range mt_volt_range3[] = {
REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000),
};
static const struct regulator_linear_range mt_volt_range4[] = {
REGULATOR_LINEAR_RANGE(1000000, 0, 0x7f, 12500),
};
/* for vmc voltage calibration: 1.86V */
static const struct regulator_linear_range mt_volt_range5[] = {
REGULATOR_LINEAR_RANGE(1800000, 0x400, 0x400, 0),
REGULATOR_LINEAR_RANGE(1810000, 0x401, 0x40a, 10000),
REGULATOR_LINEAR_RANGE(2900000, 0xa00, 0xa00, 0),
REGULATOR_LINEAR_RANGE(2910000, 0xa01, 0xa09, 10000),
REGULATOR_LINEAR_RANGE(3000000, 0xb00, 0xb00, 0),
REGULATOR_LINEAR_RANGE(3010000, 0xb01, 0xb0a, 10000),
REGULATOR_LINEAR_RANGE(3300000, 0xd00, 0xd00, 0),
};
static const u32 vdram2_voltages[] = {
600000,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
1800000,
};
static const u32 vsim1_voltages[] = {
0,
0,
0,
1700000,
1800000,
0,
0,
0,
2700000,
0,
0,
3000000,
3100000,
};
static const u32 vibr_voltages[] = {
1200000,
1300000,
1500000,
0,
1800000,
2000000,
0,
0,
0,
2800000,
0,
3000000,
0,
3300000,
};
static const u32 vrf12_voltages[] = {
1200000,
};
static const u32 vio18_voltages[] = {
1800000,
};
static const u32 vusb_voltages[] = {
0,
0,
0,
3000000,
3100000,
};
#if !USE_PMIC_MT6366
static const u32 vcamio_voltages[] = {
1800000,
};
static const u32 vcamd_voltages[] = {
0,
0,
0,
900000,
1000000,
1100000,
1200000,
1300000,
0,
1500000,
0,
0,
1800000,
};
#endif
static const u32 vcn18_voltages[] = {
1800000,
};
static const u32 vfe28_voltages[] = {
2800000,
};
static const u32 vcn28_voltages[] = {
2800000,
};
static const u32 vxo22_voltages[] = {
2200000,
};
static const u32 vefuse_voltages[] = {
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
0,
1700000,
1800000,
1900000,
};
static const u32 vaux18_voltages[] = {
1800000,
};
static const u32 vmch_voltages[] = {
0,
0,
2900000,
3000000,
0,
3300000,
};
static const u32 vbif28_voltages[] = {
2800000,
};
#if !USE_PMIC_MT6366
static const u32 vcama1_voltages[] = {
1800000,
0,
0,
0,
0,
0,
0,
2500000,
0,
2700000,
2800000,
2900000,
3000000,
};
#endif
static const u32 vemc_voltages[] = {
0,
0,
2900000,
3000000,
0,
3300000,
};
static const u32 vio28_voltages[] = {
2800000,
};
static const u32 va12_voltages[] = {
1200000,
};
static const u32 vrf18_voltages[] = {
1800000,
};
static const u32 vcn33_bt_voltages[] = {
0,
3300000,
3400000,
3500000,
};
static const u32 vcn33_wifi_voltages[] = {
0,
3300000,
3400000,
3500000,
};
#if !USE_PMIC_MT6366
static const u32 vcama2_voltages[] = {
1800000,
0,
0,
0,
0,
0,
0,
2500000,
0,
2700000,
2800000,
2900000,
3000000,
};
static const u32 vldo28_voltages[] = {
0,
2800000,
0,
3000000,
};
#endif
static const u32 vaud28_voltages[] = {
2800000,
};
static const u32 vsim2_voltages[] = {
0,
0,
0,
1700000,
1800000,
0,
0,
0,
2700000,
0,
0,
3000000,
3100000,
};
static int mt6358_regulator_disable(struct regulator_dev *rdev)
{
int ret = 0;
if (rdev->use_count == 0) {
dev_notice(&rdev->dev, "%s:%s should not be disable.(use_count=0)\n"
, __func__
, rdev->desc->name);
ret = -1;
} else {
ret = regulator_disable_regmap(rdev);
}
return ret;
}
static int mt6358_regulator_get_voltage_sel(struct regulator_dev *rdev)
{
struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
int ret, regval = 0;
ret = regmap_read(rdev->regmap, info->da_vsel_reg, &regval);
if (ret != 0) {
dev_notice(&rdev->dev,
"Failed to get mt6358 regulator voltage: %d\n", ret);
return ret;
}
ret = (regval >> info->da_vsel_shift) & info->da_vsel_mask;
return ret;
}
static int mt6358_regulator_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
int ret, val;
switch (mode) {
case REGULATOR_MODE_FAST:
val = MT6358_BUCK_MODE_FORCE_PWM;
break;
case REGULATOR_MODE_NORMAL:
val = MT6358_BUCK_MODE_AUTO;
break;
default:
ret = -EINVAL;
goto err_mode;
}
dev_notice(&rdev->dev, "mt6358 buck set_mode %#x, %#x, %#x, %#x\n",
info->modeset_reg, info->modeset_mask,
info->modeset_shift, val);
val <<= info->modeset_shift;
ret = regmap_update_bits(rdev->regmap, info->modeset_reg,
info->modeset_mask, val);
err_mode:
if (ret != 0) {
dev_notice(&rdev->dev,
"Failed to set mt6358 buck mode: %d\n", ret);
return ret;
}
return 0;
}
static unsigned int mt6358_regulator_get_mode(struct regulator_dev *rdev)
{
struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
int ret, regval = 0;
ret = regmap_read(rdev->regmap, info->modeset_reg, &regval);
if (ret != 0) {
dev_notice(&rdev->dev,
"Failed to get mt6358 buck mode: %d\n", ret);
return ret;
}
switch ((regval & info->modeset_mask) >> info->modeset_shift) {
case MT6358_BUCK_MODE_AUTO:
return REGULATOR_MODE_NORMAL;
case MT6358_BUCK_MODE_FORCE_PWM:
return REGULATOR_MODE_FAST;
default:
return -EINVAL;
}
}
static int mt6358_get_status(struct regulator_dev *rdev)
{
int ret;
u32 regval = 0;
struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
ret = regmap_read(rdev->regmap, info->da_reg, &regval);
if (ret != 0) {
dev_notice(&rdev->dev, "Failed to get enable reg: %d\n", ret);
return ret;
}
return (regval & info->qi) ? REGULATOR_STATUS_ON : REGULATOR_STATUS_OFF;
}
/* Regulator EXT_PMIC2 enable */
static int pmic_regulator_ext2_enable(struct regulator_dev *rdev)
{
unsigned int ext_en = 0, ext_sel = 0;
unsigned int ext_en_mask = PMIC_RG_STRUP_EXT_PMIC_EN_MASK <<
PMIC_RG_STRUP_EXT_PMIC_EN_SHIFT;
unsigned int ext_sel_mask = PMIC_RG_STRUP_EXT_PMIC_SEL_MASK <<
PMIC_RG_STRUP_EXT_PMIC_SEL_SHIFT;
int ret = 0;
dev_info(&rdev->dev, "regulator ext_pmic2 enable\n");
ret = regmap_read(rdev->regmap,
PMIC_RG_STRUP_EXT_PMIC_EN_ADDR, &ext_en);
if ((ext_en & 0x2) != 0x2) {
ret = regmap_update_bits(rdev->regmap,
PMIC_RG_STRUP_EXT_PMIC_EN_ADDR,
ext_en_mask,
ext_en | 0x2);
}
ret = regmap_read(rdev->regmap,
PMIC_RG_STRUP_EXT_PMIC_SEL_ADDR, &ext_sel);
if ((ext_sel & 0x20) != 0x20) {
ret = regmap_update_bits(rdev->regmap,
PMIC_RG_STRUP_EXT_PMIC_SEL_ADDR,
ext_sel_mask,
ext_sel | 0x20);
}
return ret;
}
/* Regulator EXT_PMIC2 disable */
static int pmic_regulator_ext2_disable(struct regulator_dev *rdev)
{
unsigned int ext_en = 0, ext_sel = 0;
unsigned int ext_en_mask = PMIC_RG_STRUP_EXT_PMIC_EN_MASK <<
PMIC_RG_STRUP_EXT_PMIC_EN_SHIFT;
unsigned int ext_sel_mask = PMIC_RG_STRUP_EXT_PMIC_SEL_MASK <<
PMIC_RG_STRUP_EXT_PMIC_SEL_SHIFT;
int ret = 0;
dev_info(&rdev->dev, "regulator ext_pmic2 disable\n");
if (rdev->use_count == 0) {
dev_notice(&rdev->dev, "%s:%s should not be disable.(use_count=0)\n"
, __func__
, rdev->desc->name);
return -1;
}
ret = regmap_read(rdev->regmap,
PMIC_RG_STRUP_EXT_PMIC_SEL_ADDR, &ext_sel);
if ((ext_sel & 0x20) != 0x20) {
ret = regmap_update_bits(rdev->regmap,
PMIC_RG_STRUP_EXT_PMIC_SEL_ADDR,
ext_sel_mask,
ext_sel | 0x20);
}
ret = regmap_read(rdev->regmap,
PMIC_RG_STRUP_EXT_PMIC_EN_ADDR, &ext_en);
if ((ext_en & 0x2) != 0x2) {
ret = regmap_update_bits(rdev->regmap,
PMIC_RG_STRUP_EXT_PMIC_EN_ADDR,
ext_en_mask,
ext_en & ~0x2);
}
return ret;
}
static const struct regulator_ops mt6358_volt_range_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.map_voltage = regulator_map_voltage_linear_range,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = mt6358_regulator_get_voltage_sel,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = mt6358_regulator_disable,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6358_get_status,
.set_mode = mt6358_regulator_set_mode,
.get_mode = mt6358_regulator_get_mode,
};
static const struct regulator_ops mt6358_volt_table_ops = {
.list_voltage = regulator_list_voltage_table,
.map_voltage = regulator_map_voltage_iterate,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = mt6358_regulator_disable,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6358_get_status,
};
static const struct regulator_ops mt6358_volt_fixed_ops = {
.enable = regulator_enable_regmap,
.disable = mt6358_regulator_disable,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6358_get_status,
};
/* Regulator EXT_PMIC2 ops */
static struct regulator_ops pmic_regulator_ext2_ops = {
.enable = pmic_regulator_ext2_enable,
.disable = pmic_regulator_ext2_disable,
.is_enabled = mt6358_get_status,
};
static const struct regulator_ops mt6358_vmc_ops = {
.list_voltage = regulator_list_voltage_linear_range,
.enable = regulator_enable_regmap,
.disable = mt6358_regulator_disable,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6358_get_status,
.set_voltage_sel = regulator_set_voltage_sel_regmap,
.get_voltage_sel = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
};
/* The array is indexed by id(MT6358_ID_XXX) */
static struct mt6358_regulator_info mt6358_regulators[] = {
MT_BUCK("buck_vdram1", VDRAM1, 500000, 2087500, 12500,
0, mt_volt_range2, PMIC_RG_BUCK_VDRAM1_EN_ADDR,
PMIC_DA_VDRAM1_EN_ADDR,
PMIC_DA_VDRAM1_VOSEL_ADDR,
PMIC_DA_VDRAM1_VOSEL_MASK,
PMIC_DA_VDRAM1_VOSEL_SHIFT,
PMIC_RG_BUCK_VDRAM1_VOSEL_ADDR,
PMIC_RG_BUCK_VDRAM1_VOSEL_MASK <<
PMIC_RG_BUCK_VDRAM1_VOSEL_SHIFT,
MT_BUCK_VOL_EN,
PMIC_RG_VDRAM1_FPWM_ADDR, PMIC_RG_VDRAM1_FPWM_SHIFT),
MT_BUCK("buck_vcore", VCORE, 500000, 1293750, 6250,
0, mt_volt_range1, PMIC_RG_BUCK_VCORE_EN_ADDR,
PMIC_DA_VCORE_EN_ADDR,
PMIC_DA_VCORE_VOSEL_ADDR,
PMIC_DA_VCORE_VOSEL_MASK,
PMIC_DA_VCORE_VOSEL_SHIFT,
PMIC_RG_BUCK_VCORE_VOSEL_ADDR,
PMIC_RG_BUCK_VCORE_VOSEL_MASK <<
PMIC_RG_BUCK_VCORE_VOSEL_SHIFT,
MT_BUCK_VOL_EN_MODE,
PMIC_RG_VCORE_FPWM_ADDR, PMIC_RG_VCORE_FPWM_SHIFT),
MT_BUCK("buck_vpa", VPA, 500000, 3650000, 50000,
0, mt_volt_range3, PMIC_RG_BUCK_VPA_EN_ADDR,
PMIC_DA_VPA_EN_ADDR,
PMIC_DA_VPA_VOSEL_ADDR,
PMIC_DA_VPA_VOSEL_MASK,
PMIC_DA_VPA_VOSEL_SHIFT,
PMIC_RG_BUCK_VPA_VOSEL_ADDR,
PMIC_RG_BUCK_VPA_VOSEL_MASK <<
PMIC_RG_BUCK_VPA_VOSEL_SHIFT,
MT_BUCK_VOL_EN,
PMIC_RG_VPA_MODESET_ADDR, PMIC_RG_VPA_MODESET_SHIFT),
MT_BUCK("buck_vproc11", VPROC11, 500000, 1293750, 6250,
0, mt_volt_range1, PMIC_RG_BUCK_VPROC11_EN_ADDR,
PMIC_DA_VPROC11_EN_ADDR,
PMIC_DA_VPROC11_VOSEL_ADDR,
PMIC_DA_VPROC11_VOSEL_MASK,
PMIC_DA_VPROC11_VOSEL_SHIFT,
PMIC_RG_BUCK_VPROC11_VOSEL_ADDR,
PMIC_RG_BUCK_VPROC11_VOSEL_MASK <<
PMIC_RG_BUCK_VPROC11_VOSEL_SHIFT,
MT_BUCK_VOL_EN_MODE,
PMIC_RG_VPROC11_FPWM_ADDR, PMIC_RG_VPROC11_FPWM_SHIFT),
MT_BUCK("buck_vproc12", VPROC12, 500000, 1293750, 6250,
0, mt_volt_range1, PMIC_RG_BUCK_VPROC12_EN_ADDR,
PMIC_DA_VPROC12_EN_ADDR,
PMIC_DA_VPROC12_VOSEL_ADDR,
PMIC_DA_VPROC12_VOSEL_MASK,
PMIC_DA_VPROC12_VOSEL_SHIFT,
PMIC_RG_BUCK_VPROC12_VOSEL_ADDR,
PMIC_RG_BUCK_VPROC12_VOSEL_MASK <<
PMIC_RG_BUCK_VPROC12_VOSEL_SHIFT,
MT_BUCK_VOL_EN_MODE,
PMIC_RG_VPROC12_FPWM_ADDR, PMIC_RG_VPROC12_FPWM_SHIFT),
MT_BUCK("buck_vgpu", VGPU, 500000, 1293750, 6250,
0, mt_volt_range1, PMIC_RG_BUCK_VGPU_EN_ADDR,
PMIC_DA_VGPU_EN_ADDR,
PMIC_DA_VGPU_VOSEL_ADDR,
PMIC_DA_VGPU_VOSEL_MASK,
PMIC_DA_VGPU_VOSEL_SHIFT,
PMIC_RG_BUCK_VGPU_VOSEL_ADDR,
PMIC_RG_BUCK_VGPU_VOSEL_MASK <<
PMIC_RG_BUCK_VGPU_VOSEL_SHIFT,
MT_BUCK_VOL_EN_MODE,
PMIC_RG_VGPU_FPWM_ADDR, PMIC_RG_VGPU_FPWM_SHIFT),
MT_BUCK("buck_vs2", VS2, 500000, 2087500, 12500,
0, mt_volt_range2, PMIC_RG_BUCK_VS2_EN_ADDR,
PMIC_DA_VS2_EN_ADDR,
PMIC_DA_VS2_VOSEL_ADDR,
PMIC_DA_VS2_VOSEL_MASK,
PMIC_DA_VS2_VOSEL_SHIFT,
PMIC_RG_BUCK_VS2_VOSEL_ADDR,
PMIC_RG_BUCK_VS2_VOSEL_MASK <<
PMIC_RG_BUCK_VS2_VOSEL_SHIFT,
MT_BUCK_VOL_EN,
PMIC_RG_VS2_FPWM_ADDR, PMIC_RG_VS2_FPWM_SHIFT),
MT_BUCK("buck_vmodem", VMODEM, 500000, 1293750, 6250,
0, mt_volt_range1, PMIC_RG_BUCK_VMODEM_EN_ADDR,
PMIC_DA_VMODEM_EN_ADDR,
PMIC_DA_VMODEM_VOSEL_ADDR,
PMIC_DA_VMODEM_VOSEL_MASK,
PMIC_DA_VMODEM_VOSEL_SHIFT,
PMIC_RG_BUCK_VMODEM_VOSEL_ADDR,
PMIC_RG_BUCK_VMODEM_VOSEL_MASK <<
PMIC_RG_BUCK_VMODEM_VOSEL_SHIFT,
MT_BUCK_VOL_EN,
PMIC_RG_VMODEM_FPWM_ADDR, PMIC_RG_VMODEM_FPWM_SHIFT),
MT_BUCK("buck_vs1", VS1, 1000000, 2587500, 12500,
0, mt_volt_range4, PMIC_RG_BUCK_VS1_EN_ADDR,
PMIC_DA_VS1_EN_ADDR,
PMIC_DA_VS1_VOSEL_ADDR,
PMIC_DA_VS1_VOSEL_MASK,
PMIC_DA_VS1_VOSEL_SHIFT,
PMIC_RG_BUCK_VS1_VOSEL_ADDR,
PMIC_RG_BUCK_VS1_VOSEL_MASK <<
PMIC_RG_BUCK_VS1_VOSEL_SHIFT,
MT_BUCK_VOL_EN,
PMIC_RG_VS1_FPWM_ADDR, PMIC_RG_VS1_FPWM_SHIFT),
MT_LDO_NON_REGULAR("ldo_vdram2", VDRAM2,
vdram2_voltages, PMIC_RG_LDO_VDRAM2_EN_ADDR,
PMIC_DA_VDRAM2_EN_ADDR,
PMIC_RG_LDO_VDRAM2_VOSEL_0_ADDR,
PMIC_RG_LDO_VDRAM2_VOSEL_0_MASK <<
PMIC_RG_LDO_VDRAM2_VOSEL_0_SHIFT,
MT_LDO_VOL_EN),
MT_LDO_NON_REGULAR("ldo_vsim1", VSIM1,
vsim1_voltages, PMIC_RG_LDO_VSIM1_EN_ADDR,
PMIC_DA_VSIM1_EN_ADDR,
PMIC_RG_VSIM1_VOSEL_ADDR,
PMIC_RG_VSIM1_VOSEL_MASK <<
PMIC_RG_VSIM1_VOSEL_SHIFT,
MT_LDO_VOL_EN),
MT_LDO_NON_REGULAR("ldo_vibr", VIBR,
vibr_voltages, PMIC_RG_LDO_VIBR_EN_ADDR,
PMIC_DA_VIBR_EN_ADDR,
PMIC_RG_VIBR_VOSEL_ADDR,
PMIC_RG_VIBR_VOSEL_MASK <<
PMIC_RG_VIBR_VOSEL_SHIFT,
MT_LDO_VOL_EN),
MT_REG_FIXED("ldo_vrf12", VRF12, PMIC_RG_LDO_VRF12_EN_ADDR,
PMIC_DA_VRF12_EN_ADDR,
1200000, MT_LDO_EN),
MT_REG_FIXED("ldo_vio18", VIO18, PMIC_RG_LDO_VIO18_EN_ADDR,
PMIC_DA_VIO18_EN_ADDR,
1800000, MT_LDO_EN),
MT_LDO_NON_REGULAR("ldo_vusb", VUSB,
vusb_voltages, PMIC_RG_LDO_VUSB_EN_0_ADDR,
PMIC_DA_VUSB_EN_ADDR,
PMIC_RG_VUSB_VOSEL_ADDR,
PMIC_RG_VUSB_VOSEL_MASK <<
PMIC_RG_VUSB_VOSEL_SHIFT,
MT_LDO_VOL_EN),
#if !USE_PMIC_MT6366
MT_REG_FIXED("ldo_vcamio", VCAMIO, PMIC_RG_LDO_VCAMIO_EN_ADDR,
PMIC_DA_VCAMIO_EN_ADDR,
1800000, MT_LDO_EN),
MT_LDO_NON_REGULAR("ldo_vcamd", VCAMD,
vcamd_voltages, PMIC_RG_LDO_VCAMD_EN_ADDR,
PMIC_DA_VCAMD_EN_ADDR,
PMIC_RG_VCAMD_VOSEL_ADDR,
PMIC_RG_VCAMD_VOSEL_MASK <<
PMIC_RG_VCAMD_VOSEL_SHIFT,
MT_LDO_VOL_EN),
#endif
MT_REG_FIXED("ldo_vcn18", VCN18, PMIC_RG_LDO_VCN18_EN_ADDR,
PMIC_DA_VCN18_EN_ADDR,
1800000, MT_LDO_EN),
MT_REG_FIXED("ldo_vfe28", VFE28, PMIC_RG_LDO_VFE28_EN_ADDR,
PMIC_DA_VFE28_EN_ADDR,
2800000, MT_LDO_EN),
MT_LDO_REGULAR("ldo_vsram_proc11", VSRAM_PROC11, 500000, 1293750, 6250,
0, mt_volt_range1, PMIC_RG_LDO_VSRAM_PROC11_EN_ADDR,
PMIC_DA_VSRAM_PROC11_EN_ADDR,
PMIC_DA_VSRAM_PROC11_VOSEL_ADDR,
PMIC_DA_VSRAM_PROC11_VOSEL_MASK,
PMIC_DA_VSRAM_PROC11_VOSEL_SHIFT,
PMIC_RG_LDO_VSRAM_PROC11_VOSEL_ADDR,
PMIC_RG_LDO_VSRAM_PROC11_VOSEL_MASK <<
PMIC_RG_LDO_VSRAM_PROC11_VOSEL_SHIFT,
MT_LDO_VOL_EN),
MT_REG_FIXED("ldo_vcn28", VCN28, PMIC_RG_LDO_VCN28_EN_ADDR,
PMIC_DA_VCN28_EN_ADDR,
2800000, MT_LDO_EN),
MT_LDO_REGULAR("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750, 6250,
0, mt_volt_range1, PMIC_RG_LDO_VSRAM_OTHERS_EN_ADDR,
PMIC_DA_VSRAM_OTHERS_EN_ADDR,
PMIC_DA_VSRAM_OTHERS_VOSEL_ADDR,
PMIC_DA_VSRAM_OTHERS_VOSEL_MASK,
PMIC_DA_VSRAM_OTHERS_VOSEL_SHIFT,
PMIC_RG_LDO_VSRAM_OTHERS_VOSEL_ADDR,
PMIC_RG_LDO_VSRAM_OTHERS_VOSEL_MASK <<
PMIC_RG_LDO_VSRAM_OTHERS_VOSEL_SHIFT,
MT_LDO_VOL_EN),
MT_LDO_REGULAR("ldo_vsram_gpu", VSRAM_GPU, 500000, 1293750, 6250,
0, mt_volt_range1, PMIC_RG_LDO_VSRAM_GPU_EN_ADDR,
PMIC_DA_VSRAM_GPU_EN_ADDR,
PMIC_DA_VSRAM_GPU_VOSEL_ADDR,
PMIC_DA_VSRAM_GPU_VOSEL_MASK,
PMIC_DA_VSRAM_GPU_VOSEL_SHIFT,
PMIC_RG_LDO_VSRAM_GPU_VOSEL_ADDR,
PMIC_RG_LDO_VSRAM_GPU_VOSEL_MASK <<
PMIC_RG_LDO_VSRAM_GPU_VOSEL_SHIFT,
MT_LDO_VOL_EN),
MT_REG_FIXED("ldo_vxo22", VXO22, PMIC_RG_LDO_VXO22_EN_ADDR,
PMIC_DA_VXO22_EN_ADDR,
2200000, MT_LDO_EN),
MT_LDO_NON_REGULAR("ldo_vefuse", VEFUSE,
vefuse_voltages, PMIC_RG_LDO_VEFUSE_EN_ADDR,
PMIC_DA_VEFUSE_EN_ADDR,
PMIC_RG_VEFUSE_VOSEL_ADDR,
PMIC_RG_VEFUSE_VOSEL_MASK <<
PMIC_RG_VEFUSE_VOSEL_SHIFT,
MT_LDO_VOL_EN),
MT_REG_FIXED("ldo_vaux18", VAUX18, PMIC_RG_LDO_VAUX18_EN_ADDR,
PMIC_DA_VAUX18_EN_ADDR,
1800000, MT_LDO_EN),
MT_LDO_NON_REGULAR("ldo_vmch", VMCH,
vmch_voltages, PMIC_RG_LDO_VMCH_EN_ADDR,
PMIC_DA_VMCH_EN_ADDR,
PMIC_RG_VMCH_VOSEL_ADDR,
PMIC_RG_VMCH_VOSEL_MASK <<
PMIC_RG_VMCH_VOSEL_SHIFT,
MT_LDO_VOL_EN),
MT_REG_FIXED("ldo_vbif28", VBIF28, PMIC_RG_LDO_VBIF28_EN_ADDR,
PMIC_DA_VBIF28_EN_ADDR,
2800000, MT_LDO_EN),
MT_LDO_REGULAR("ldo_vsram_proc12", VSRAM_PROC12, 500000, 1293750, 6250,
0, mt_volt_range1, PMIC_RG_LDO_VSRAM_PROC12_EN_ADDR,
PMIC_DA_VSRAM_PROC12_EN_ADDR,
PMIC_DA_VSRAM_PROC12_VOSEL_ADDR,
PMIC_DA_VSRAM_PROC12_VOSEL_MASK,
PMIC_DA_VSRAM_PROC12_VOSEL_SHIFT,
PMIC_RG_LDO_VSRAM_PROC12_VOSEL_ADDR,
PMIC_RG_LDO_VSRAM_PROC12_VOSEL_MASK <<
PMIC_RG_LDO_VSRAM_PROC12_VOSEL_SHIFT,
MT_LDO_VOL_EN),
#if !USE_PMIC_MT6366
MT_LDO_NON_REGULAR("ldo_vcama1", VCAMA1,
vcama1_voltages, PMIC_RG_LDO_VCAMA1_EN_ADDR,
PMIC_DA_VCAMA1_EN_ADDR,
PMIC_RG_VCAMA1_VOSEL_ADDR,
PMIC_RG_VCAMA1_VOSEL_MASK <<
PMIC_RG_VCAMA1_VOSEL_SHIFT,
MT_LDO_VOL_EN),
#endif
MT_LDO_NON_REGULAR("ldo_vemc", VEMC,
vemc_voltages, PMIC_RG_LDO_VEMC_EN_ADDR,
PMIC_DA_VEMC_EN_ADDR,
PMIC_RG_VEMC_VOSEL_ADDR,
PMIC_RG_VEMC_VOSEL_MASK <<
PMIC_RG_VEMC_VOSEL_SHIFT,
MT_LDO_VOL_EN),
MT_REG_FIXED("ldo_vio28", VIO28, PMIC_RG_LDO_VIO28_EN_ADDR,
PMIC_DA_VIO28_EN_ADDR,
2800000, MT_LDO_EN),
MT_REG_FIXED("ldo_va12", VA12, PMIC_RG_LDO_VA12_EN_ADDR,
PMIC_DA_VA12_EN_ADDR,
1200000, MT_LDO_EN),
MT_REG_FIXED("ldo_vrf18", VRF18, PMIC_RG_LDO_VRF18_EN_ADDR,
PMIC_DA_VRF18_EN_ADDR,
1800000, MT_LDO_EN),
MT_LDO_NON_REGULAR("ldo_vcn33_bt", VCN33_BT,
vcn33_bt_voltages, PMIC_RG_LDO_VCN33_EN_0_ADDR,
PMIC_DA_VCN33_EN_ADDR,
PMIC_RG_VCN33_VOSEL_ADDR,
PMIC_RG_VCN33_VOSEL_MASK <<
PMIC_RG_VCN33_VOSEL_SHIFT,
MT_LDO_VOL_EN),
MT_LDO_NON_REGULAR("ldo_vcn33_wifi", VCN33_WIFI,
vcn33_wifi_voltages, PMIC_RG_LDO_VCN33_EN_1_ADDR,
PMIC_DA_VCN33_EN_ADDR,
PMIC_RG_VCN33_VOSEL_ADDR,
PMIC_RG_VCN33_VOSEL_MASK <<
PMIC_RG_VCN33_VOSEL_SHIFT,
MT_LDO_VOL_EN),
#if !USE_PMIC_MT6366
MT_LDO_NON_REGULAR("ldo_vcama2", VCAMA2,
vcama2_voltages, PMIC_RG_LDO_VCAMA2_EN_ADDR,
PMIC_DA_VCAMA2_EN_ADDR,
PMIC_RG_VCAMA2_VOSEL_ADDR,
PMIC_RG_VCAMA2_VOSEL_MASK <<
PMIC_RG_VCAMA2_VOSEL_SHIFT,
MT_LDO_VOL_EN),
#endif
MT6358_LDO_VMC_DESC("ldo_vmc", VMC, mt_volt_range5,
PMIC_RG_LDO_VMC_EN_ADDR,
PMIC_DA_VMC_EN_ADDR, PMIC_RG_VMC_VOSEL_ADDR,
0xFFF, MT_LDO_VOL_EN),
#if !USE_PMIC_MT6366
MT_LDO_NON_REGULAR("ldo_vldo28", VLDO28,
vldo28_voltages, PMIC_RG_LDO_VLDO28_EN_0_ADDR,
PMIC_DA_VLDO28_EN_ADDR,
PMIC_RG_VLDO28_VOSEL_ADDR,
PMIC_RG_VLDO28_VOSEL_MASK <<
PMIC_RG_VLDO28_VOSEL_SHIFT,
MT_LDO_VOL_EN),
#endif
MT_REG_FIXED("ldo_vaud28", VAUD28, PMIC_RG_LDO_VAUD28_EN_ADDR,
PMIC_DA_VAUD28_EN_ADDR,
2800000, MT_LDO_EN),
MT_LDO_NON_REGULAR("ldo_vsim2", VSIM2,
vsim2_voltages, PMIC_RG_LDO_VSIM2_EN_ADDR,
PMIC_DA_VSIM2_EN_ADDR,
PMIC_RG_VSIM2_VOSEL_ADDR,
PMIC_RG_VSIM2_VOSEL_MASK <<
PMIC_RG_VSIM2_VOSEL_SHIFT,
MT_LDO_VOL_EN),
{
.desc = {
.name = "VA09",
.of_match = of_match_ptr("ldo_va09"),
.ops = &pmic_regulator_ext2_ops,
.type = REGULATOR_VOLTAGE,
.id = MT6358_ID_VA09,
.owner = THIS_MODULE,
.n_voltages = 1,
.fixed_uV = 900000,
},
.constraints = {
.valid_ops_mask = MT_LDO_EN,
},
.da_reg = PMIC_DA_EXT_PMIC_EN2_ADDR,
.qi = BIT(9),
},
};
static const struct mt_regulator_init_data mt6358_regulator_init_data = {
.id = MT6358_SWCID,
.size = MT6358_MAX_REGULATOR,
.regulator_info = &mt6358_regulators[0],
};
static const struct platform_device_id mt6358_platform_ids[] = {
{"mt6358-regulator", 0},
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(platform, mt6358_platform_ids);
static const struct of_device_id mt6358_of_match[] = {
{
.compatible = "mediatek,mt6358-regulator",
.data = &mt6358_regulator_init_data,
}, {
/* sentinel */
},
};
MODULE_DEVICE_TABLE(of, mt6358_of_match);
static void mt6358_oc_irq_enable_work(struct work_struct *work)
{
struct delayed_work *dwork = to_delayed_work(work);
struct mt6358_regulator_info *info
= container_of(dwork, struct mt6358_regulator_info, oc_work);
enable_irq(info->irq);
}
static irqreturn_t mt6358_oc_irq(int irq, void *data)
{
struct regulator_dev *rdev = (struct regulator_dev *)data;
struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);
disable_irq_nosync(info->irq);
if (!regulator_is_enabled_regmap(rdev))
goto delayed_enable;
mutex_lock(&rdev->mutex);
regulator_notifier_call_chain(rdev, REGULATOR_EVENT_OVER_CURRENT,
NULL);
mutex_unlock(&rdev->mutex);
delayed_enable:
schedule_delayed_work(&info->oc_work,
msecs_to_jiffies(info->oc_irq_enable_delay_ms));
return IRQ_HANDLED;
}
static int mt6358_of_parse_cb(struct device_node *np,
const struct regulator_desc *desc,
struct regulator_config *config)
{
int ret;
struct mt6358_regulator_info *info = config->driver_data;
ret = of_property_read_u32(np, "mediatek,oc-irq-enable-delay-ms",
&info->oc_irq_enable_delay_ms);
if (ret || !info->oc_irq_enable_delay_ms)
info->oc_irq_enable_delay_ms = DEF_OC_IRQ_ENABLE_DELAY_MS;
return 0;
}
static int mt6358_regulator_probe(struct platform_device *pdev)
{
const struct of_device_id *of_id;
struct mt6358_chip *mt6358 = dev_get_drvdata(pdev->dev.parent);
struct mt6358_regulator_info *mt_regulators;
struct mt_regulator_init_data *regulator_init_data;
struct regulator_config config = {};
struct regulator_dev *rdev;
struct regulation_constraints *c;
int i, ret;
u32 reg_value = 0;
of_id = of_match_device(mt6358_of_match, &pdev->dev);
if (!of_id || !of_id->data)
return -ENODEV;
regulator_init_data = (struct mt_regulator_init_data *)of_id->data;
mt_regulators = regulator_init_data->regulator_info;
/* Read PMIC chip revision to update constraints and voltage table */
if (regmap_read(mt6358->regmap, MT6358_SWCID, &reg_value) < 0) {
dev_notice(&pdev->dev, "Failed to read Chip ID\n");
return -EIO;
}
dev_info(&pdev->dev, "Chip ID = 0x%x\n", reg_value);
for (i = 0; i < regulator_init_data->size; i++, mt_regulators++) {
mt_regulators->desc.of_parse_cb = mt6358_of_parse_cb;
config.dev = &pdev->dev;
config.driver_data = mt_regulators;
config.regmap = mt6358->regmap;
rdev = devm_regulator_register(&pdev->dev,
&mt_regulators->desc, &config);
if (IS_ERR(rdev)) {
dev_notice(&pdev->dev, "failed to register %s\n",
mt_regulators->desc.name);
return PTR_ERR(rdev);
}
c = rdev->constraints;
c->valid_ops_mask |=
mt_regulators->constraints.valid_ops_mask;
c->valid_modes_mask |=
mt_regulators->constraints.valid_modes_mask;
mt_regulators->irq =
platform_get_irq_byname(pdev,
mt_regulators->desc.name);
if (mt_regulators->irq < 0)
continue;
ret = devm_request_threaded_irq(&pdev->dev, mt_regulators->irq,
NULL, mt6358_oc_irq,
IRQF_TRIGGER_HIGH,
mt_regulators->desc.name,
rdev);
if (ret) {
dev_notice(&pdev->dev, "Failed to request IRQ:%s,%d",
mt_regulators->desc.name, ret);
continue;
}
INIT_DELAYED_WORK(&mt_regulators->oc_work,
mt6358_oc_irq_enable_work);
}
return 0;
}
static struct platform_driver mt6358_regulator_driver = {
.driver = {
.name = "mt6358-regulator",
.of_match_table = of_match_ptr(mt6358_of_match),
},
.probe = mt6358_regulator_probe,
.id_table = mt6358_platform_ids,
};
module_platform_driver(mt6358_regulator_driver);
MODULE_AUTHOR("Wen Su <wen.su@mediatek.com>");
MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6358 PMIC");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:mt6358-regulator");
Reference in a new issue Copy permalink