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regulator: mt6359: Add support for MT6359 regulator
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The MT6359 is a regulator found on boards based on MediaTek MT6779 and
probably other SoCs. It is a so called pmic and connects as a slave to
SoC using SPI, wrapped inside the pmic-wrapper.

Signed-off-by: Wen Su <wen.su@mediatek.com>
Signed-off-by: Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Wen Su authored and Lee Jones committed Jun 1, 2021
1 parent e545b8f commit d7a58de
Showing 4 changed files with 737 additions and 0 deletions.
9 changes: 9 additions & 0 deletions drivers/regulator/Kconfig
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@@ -779,6 +779,15 @@ config REGULATOR_MT6358
This driver supports the control of different power rails of device
through regulator interface.

config REGULATOR_MT6359
tristate "MediaTek MT6359 PMIC"
depends on MFD_MT6397
help
Say y here to select this option to enable the power regulator of
MediaTek MT6359 PMIC.
This driver supports the control of different power rails of device
through regulator interface.

config REGULATOR_MT6360
tristate "MT6360 SubPMIC Regulator"
depends on MFD_MT6360
1 change: 1 addition & 0 deletions drivers/regulator/Makefile
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@@ -94,6 +94,7 @@ obj-$(CONFIG_REGULATOR_MT6311) += mt6311-regulator.o
obj-$(CONFIG_REGULATOR_MT6315) += mt6315-regulator.o
obj-$(CONFIG_REGULATOR_MT6323) += mt6323-regulator.o
obj-$(CONFIG_REGULATOR_MT6358) += mt6358-regulator.o
obj-$(CONFIG_REGULATOR_MT6359) += mt6359-regulator.o
obj-$(CONFIG_REGULATOR_MT6360) += mt6360-regulator.o
obj-$(CONFIG_REGULATOR_MT6380) += mt6380-regulator.o
obj-$(CONFIG_REGULATOR_MT6397) += mt6397-regulator.o
669 changes: 669 additions & 0 deletions drivers/regulator/mt6359-regulator.c
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@@ -0,0 +1,669 @@
// SPDX-License-Identifier: GPL-2.0
//
// Copyright (c) 2021 MediaTek Inc.

#include <linux/platform_device.h>
#include <linux/mfd/mt6359/registers.h>
#include <linux/mfd/mt6397/core.h>
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/regmap.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/regulator/mt6359-regulator.h>
#include <linux/regulator/of_regulator.h>

#define MT6359_BUCK_MODE_AUTO 0
#define MT6359_BUCK_MODE_FORCE_PWM 1
#define MT6359_BUCK_MODE_NORMAL 0
#define MT6359_BUCK_MODE_LP 2

/*
* MT6359 regulators' information
*
* @desc: standard fields of regulator description.
* @status_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 mt6359_regulator_info {
struct regulator_desc desc;
u32 status_reg;
u32 qi;
u32 modeset_reg;
u32 modeset_mask;
u32 modeset_shift;
u32 lp_mode_reg;
u32 lp_mode_mask;
u32 lp_mode_shift;
};

#define MT6359_BUCK(match, _name, min, max, step, min_sel, \
volt_ranges, _enable_reg, _status_reg, \
_vsel_reg, _vsel_mask, \
_lp_mode_reg, _lp_mode_shift, \
_modeset_reg, _modeset_shift) \
[MT6359_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.regulators_node = of_match_ptr("regulators"), \
.ops = &mt6359_volt_range_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6359_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), \
.of_map_mode = mt6359_map_mode, \
}, \
.status_reg = _status_reg, \
.qi = BIT(0), \
.lp_mode_reg = _lp_mode_reg, \
.lp_mode_mask = BIT(_lp_mode_shift), \
.lp_mode_shift = _lp_mode_shift, \
.modeset_reg = _modeset_reg, \
.modeset_mask = BIT(_modeset_shift), \
.modeset_shift = _modeset_shift \
}

#define MT6359_LDO_LINEAR(match, _name, min, max, step, min_sel,\
volt_ranges, _enable_reg, _status_reg, \
_vsel_reg, _vsel_mask) \
[MT6359_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.regulators_node = of_match_ptr("regulators"), \
.ops = &mt6359_volt_range_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6359_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), \
}, \
.status_reg = _status_reg, \
.qi = BIT(0), \
}

#define MT6359_LDO(match, _name, _volt_table, \
_enable_reg, _enable_mask, _status_reg, \
_vsel_reg, _vsel_mask, _en_delay) \
[MT6359_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.regulators_node = of_match_ptr("regulators"), \
.ops = &mt6359_volt_table_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6359_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(_enable_mask), \
.enable_time = _en_delay, \
}, \
.status_reg = _status_reg, \
.qi = BIT(0), \
}

#define MT6359_REG_FIXED(match, _name, _enable_reg, \
_status_reg, _fixed_volt) \
[MT6359_ID_##_name] = { \
.desc = { \
.name = #_name, \
.of_match = of_match_ptr(match), \
.regulators_node = of_match_ptr("regulators"), \
.ops = &mt6359_volt_fixed_ops, \
.type = REGULATOR_VOLTAGE, \
.id = MT6359_ID_##_name, \
.owner = THIS_MODULE, \
.n_voltages = 1, \
.enable_reg = _enable_reg, \
.enable_mask = BIT(0), \
.fixed_uV = (_fixed_volt), \
}, \
.status_reg = _status_reg, \
.qi = BIT(0), \
}

static const struct linear_range mt_volt_range1[] = {
REGULATOR_LINEAR_RANGE(800000, 0, 0x70, 12500),
};

static const struct linear_range mt_volt_range2[] = {
REGULATOR_LINEAR_RANGE(400000, 0, 0x7f, 6250),
};

static const struct linear_range mt_volt_range3[] = {
REGULATOR_LINEAR_RANGE(400000, 0, 0x70, 6250),
};

static const struct linear_range mt_volt_range4[] = {
REGULATOR_LINEAR_RANGE(800000, 0, 0x40, 12500),
};

static const struct linear_range mt_volt_range5[] = {
REGULATOR_LINEAR_RANGE(500000, 0, 0x3F, 50000),
};

static const struct linear_range mt_volt_range6[] = {
REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250),
};

static const struct linear_range mt_volt_range7[] = {
REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250),
};

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, 2700000, 2800000,
0, 3000000, 0, 3300000,
};

static const u32 vrf12_voltages[] = {
0, 0, 1100000, 1200000, 1300000,
};

static const u32 volt18_voltages[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1700000, 1800000, 1900000,
};

static const u32 vcn13_voltages[] = {
900000, 1000000, 0, 1200000, 1300000,
};

static const u32 vcn33_voltages[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 2800000, 0, 0, 0, 3300000, 3400000, 3500000,
};

static const u32 vefuse_voltages[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1700000, 1800000, 1900000, 2000000,
};

static const u32 vxo22_voltages[] = {
1800000, 0, 0, 0, 2200000,
};

static const u32 vrfck_voltages[] = {
0, 0, 1500000, 0, 0, 0, 0, 1600000, 0, 0, 0, 0, 1700000,
};

static const u32 vio28_voltages[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 2800000, 2900000, 3000000, 3100000, 3300000,
};

static const u32 vemc_voltages[] = {
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2900000, 3000000, 0, 3300000,
};

static const u32 va12_voltages[] = {
0, 0, 0, 0, 0, 0, 1200000, 1300000,
};

static const u32 va09_voltages[] = {
0, 0, 800000, 900000, 0, 0, 1200000,
};

static const u32 vrf18_voltages[] = {
0, 0, 0, 0, 0, 1700000, 1800000, 1810000,
};

static const u32 vbbck_voltages[] = {
0, 0, 0, 0, 1100000, 0, 0, 0, 1150000, 0, 0, 0, 1200000,
};

static const u32 vsim2_voltages[] = {
0, 0, 0, 1700000, 1800000, 0, 0, 0, 2700000, 0, 0, 3000000, 3100000,
};

static inline unsigned int mt6359_map_mode(unsigned int mode)
{
switch (mode) {
case MT6359_BUCK_MODE_NORMAL:
return REGULATOR_MODE_NORMAL;
case MT6359_BUCK_MODE_FORCE_PWM:
return REGULATOR_MODE_FAST;
case MT6359_BUCK_MODE_LP:
return REGULATOR_MODE_IDLE;
default:
return REGULATOR_MODE_INVALID;
}
}

static int mt6359_get_status(struct regulator_dev *rdev)
{
int ret;
u32 regval;
struct mt6359_regulator_info *info = rdev_get_drvdata(rdev);

ret = regmap_read(rdev->regmap, info->status_reg, &regval);
if (ret != 0) {
dev_err(&rdev->dev, "Failed to get enable reg: %d\n", ret);
return ret;
}

if (regval & info->qi)
return REGULATOR_STATUS_ON;
else
return REGULATOR_STATUS_OFF;
}

static unsigned int mt6359_regulator_get_mode(struct regulator_dev *rdev)
{
struct mt6359_regulator_info *info = rdev_get_drvdata(rdev);
int ret, regval;

ret = regmap_read(rdev->regmap, info->modeset_reg, &regval);
if (ret != 0) {
dev_err(&rdev->dev,
"Failed to get mt6359 buck mode: %d\n", ret);
return ret;
}

if ((regval & info->modeset_mask) >> info->modeset_shift ==
MT6359_BUCK_MODE_FORCE_PWM)
return REGULATOR_MODE_FAST;

ret = regmap_read(rdev->regmap, info->lp_mode_reg, &regval);
if (ret != 0) {
dev_err(&rdev->dev,
"Failed to get mt6359 buck lp mode: %d\n", ret);
return ret;
}

if (regval & info->lp_mode_mask)
return REGULATOR_MODE_IDLE;
else
return REGULATOR_MODE_NORMAL;
}

static int mt6359_regulator_set_mode(struct regulator_dev *rdev,
unsigned int mode)
{
struct mt6359_regulator_info *info = rdev_get_drvdata(rdev);
int ret = 0, val;
int curr_mode;

curr_mode = mt6359_regulator_get_mode(rdev);
switch (mode) {
case REGULATOR_MODE_FAST:
val = MT6359_BUCK_MODE_FORCE_PWM;
val <<= info->modeset_shift;
ret = regmap_update_bits(rdev->regmap,
info->modeset_reg,
info->modeset_mask,
val);
break;
case REGULATOR_MODE_NORMAL:
if (curr_mode == REGULATOR_MODE_FAST) {
val = MT6359_BUCK_MODE_AUTO;
val <<= info->modeset_shift;
ret = regmap_update_bits(rdev->regmap,
info->modeset_reg,
info->modeset_mask,
val);
} else if (curr_mode == REGULATOR_MODE_IDLE) {
val = MT6359_BUCK_MODE_NORMAL;
val <<= info->lp_mode_shift;
ret = regmap_update_bits(rdev->regmap,
info->lp_mode_reg,
info->lp_mode_mask,
val);
udelay(100);
}
break;
case REGULATOR_MODE_IDLE:
val = MT6359_BUCK_MODE_LP >> 1;
val <<= info->lp_mode_shift;
ret = regmap_update_bits(rdev->regmap,
info->lp_mode_reg,
info->lp_mode_mask,
val);
break;
default:
return -EINVAL;
}

if (ret != 0) {
dev_err(&rdev->dev,
"Failed to set mt6359 buck mode: %d\n", ret);
}

return ret;
}

static const struct regulator_ops mt6359_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 = regulator_get_voltage_sel_regmap,
.set_voltage_time_sel = regulator_set_voltage_time_sel,
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6359_get_status,
.set_mode = mt6359_regulator_set_mode,
.get_mode = mt6359_regulator_get_mode,
};

static const struct regulator_ops mt6359_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 = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6359_get_status,
};

static const struct regulator_ops mt6359_volt_fixed_ops = {
.enable = regulator_enable_regmap,
.disable = regulator_disable_regmap,
.is_enabled = regulator_is_enabled_regmap,
.get_status = mt6359_get_status,
};

/* The array is indexed by id(MT6359_ID_XXX) */
static struct mt6359_regulator_info mt6359_regulators[] = {
MT6359_BUCK("buck_vs1", VS1, 800000, 2200000, 12500, 0,
mt_volt_range1, MT6359_RG_BUCK_VS1_EN_ADDR,
MT6359_DA_VS1_EN_ADDR, MT6359_RG_BUCK_VS1_VOSEL_ADDR,
MT6359_RG_BUCK_VS1_VOSEL_MASK <<
MT6359_RG_BUCK_VS1_VOSEL_SHIFT,
MT6359_RG_BUCK_VS1_LP_ADDR, MT6359_RG_BUCK_VS1_LP_SHIFT,
MT6359_RG_VS1_FPWM_ADDR, MT6359_RG_VS1_FPWM_SHIFT),
MT6359_BUCK("buck_vgpu11", VGPU11, 400000, 1193750, 6250, 0,
mt_volt_range2, MT6359_RG_BUCK_VGPU11_EN_ADDR,
MT6359_DA_VGPU11_EN_ADDR, MT6359_RG_BUCK_VGPU11_VOSEL_ADDR,
MT6359_RG_BUCK_VGPU11_VOSEL_MASK <<
MT6359_RG_BUCK_VGPU11_VOSEL_SHIFT,
MT6359_RG_BUCK_VGPU11_LP_ADDR,
MT6359_RG_BUCK_VGPU11_LP_SHIFT,
MT6359_RG_VGPU11_FCCM_ADDR, MT6359_RG_VGPU11_FCCM_SHIFT),
MT6359_BUCK("buck_vmodem", VMODEM, 400000, 1100000, 6250, 0,
mt_volt_range3, MT6359_RG_BUCK_VMODEM_EN_ADDR,
MT6359_DA_VMODEM_EN_ADDR, MT6359_RG_BUCK_VMODEM_VOSEL_ADDR,
MT6359_RG_BUCK_VMODEM_VOSEL_MASK <<
MT6359_RG_BUCK_VMODEM_VOSEL_SHIFT,
MT6359_RG_BUCK_VMODEM_LP_ADDR,
MT6359_RG_BUCK_VMODEM_LP_SHIFT,
MT6359_RG_VMODEM_FCCM_ADDR, MT6359_RG_VMODEM_FCCM_SHIFT),
MT6359_BUCK("buck_vpu", VPU, 400000, 1193750, 6250, 0,
mt_volt_range2, MT6359_RG_BUCK_VPU_EN_ADDR,
MT6359_DA_VPU_EN_ADDR, MT6359_RG_BUCK_VPU_VOSEL_ADDR,
MT6359_RG_BUCK_VPU_VOSEL_MASK <<
MT6359_RG_BUCK_VPU_VOSEL_SHIFT,
MT6359_RG_BUCK_VPU_LP_ADDR, MT6359_RG_BUCK_VPU_LP_SHIFT,
MT6359_RG_VPU_FCCM_ADDR, MT6359_RG_VPU_FCCM_SHIFT),
MT6359_BUCK("buck_vcore", VCORE, 400000, 1193750, 6250, 0,
mt_volt_range2, MT6359_RG_BUCK_VCORE_EN_ADDR,
MT6359_DA_VCORE_EN_ADDR, MT6359_RG_BUCK_VCORE_VOSEL_ADDR,
MT6359_RG_BUCK_VCORE_VOSEL_MASK <<
MT6359_RG_BUCK_VCORE_VOSEL_SHIFT,
MT6359_RG_BUCK_VCORE_LP_ADDR, MT6359_RG_BUCK_VCORE_LP_SHIFT,
MT6359_RG_VCORE_FCCM_ADDR, MT6359_RG_VCORE_FCCM_SHIFT),
MT6359_BUCK("buck_vs2", VS2, 800000, 1600000, 12500, 0,
mt_volt_range4, MT6359_RG_BUCK_VS2_EN_ADDR,
MT6359_DA_VS2_EN_ADDR, MT6359_RG_BUCK_VS2_VOSEL_ADDR,
MT6359_RG_BUCK_VS2_VOSEL_MASK <<
MT6359_RG_BUCK_VS2_VOSEL_SHIFT,
MT6359_RG_BUCK_VS2_LP_ADDR, MT6359_RG_BUCK_VS2_LP_SHIFT,
MT6359_RG_VS2_FPWM_ADDR, MT6359_RG_VS2_FPWM_SHIFT),
MT6359_BUCK("buck_vpa", VPA, 500000, 3650000, 50000, 0,
mt_volt_range5, MT6359_RG_BUCK_VPA_EN_ADDR,
MT6359_DA_VPA_EN_ADDR, MT6359_RG_BUCK_VPA_VOSEL_ADDR,
MT6359_RG_BUCK_VPA_VOSEL_MASK <<
MT6359_RG_BUCK_VPA_VOSEL_SHIFT,
MT6359_RG_BUCK_VPA_LP_ADDR, MT6359_RG_BUCK_VPA_LP_SHIFT,
MT6359_RG_VPA_MODESET_ADDR, MT6359_RG_VPA_MODESET_SHIFT),
MT6359_BUCK("buck_vproc2", VPROC2, 400000, 1193750, 6250, 0,
mt_volt_range2, MT6359_RG_BUCK_VPROC2_EN_ADDR,
MT6359_DA_VPROC2_EN_ADDR, MT6359_RG_BUCK_VPROC2_VOSEL_ADDR,
MT6359_RG_BUCK_VPROC2_VOSEL_MASK <<
MT6359_RG_BUCK_VPROC2_VOSEL_SHIFT,
MT6359_RG_BUCK_VPROC2_LP_ADDR,
MT6359_RG_BUCK_VPROC2_LP_SHIFT,
MT6359_RG_VPROC2_FCCM_ADDR, MT6359_RG_VPROC2_FCCM_SHIFT),
MT6359_BUCK("buck_vproc1", VPROC1, 400000, 1193750, 6250, 0,
mt_volt_range2, MT6359_RG_BUCK_VPROC1_EN_ADDR,
MT6359_DA_VPROC1_EN_ADDR, MT6359_RG_BUCK_VPROC1_VOSEL_ADDR,
MT6359_RG_BUCK_VPROC1_VOSEL_MASK <<
MT6359_RG_BUCK_VPROC1_VOSEL_SHIFT,
MT6359_RG_BUCK_VPROC1_LP_ADDR,
MT6359_RG_BUCK_VPROC1_LP_SHIFT,
MT6359_RG_VPROC1_FCCM_ADDR, MT6359_RG_VPROC1_FCCM_SHIFT),
MT6359_BUCK("buck_vcore_sshub", VCORE_SSHUB, 400000, 1193750, 6250, 0,
mt_volt_range2, MT6359_RG_BUCK_VCORE_SSHUB_EN_ADDR,
MT6359_DA_VCORE_EN_ADDR,
MT6359_RG_BUCK_VCORE_SSHUB_VOSEL_ADDR,
MT6359_RG_BUCK_VCORE_SSHUB_VOSEL_MASK <<
MT6359_RG_BUCK_VCORE_SSHUB_VOSEL_SHIFT,
MT6359_RG_BUCK_VCORE_LP_ADDR, MT6359_RG_BUCK_VCORE_LP_SHIFT,
MT6359_RG_VCORE_FCCM_ADDR, MT6359_RG_VCORE_FCCM_SHIFT),
MT6359_REG_FIXED("ldo_vaud18", VAUD18, MT6359_RG_LDO_VAUD18_EN_ADDR,
MT6359_DA_VAUD18_B_EN_ADDR, 1800000),
MT6359_LDO("ldo_vsim1", VSIM1, vsim1_voltages,
MT6359_RG_LDO_VSIM1_EN_ADDR, MT6359_RG_LDO_VSIM1_EN_SHIFT,
MT6359_DA_VSIM1_B_EN_ADDR, MT6359_RG_VSIM1_VOSEL_ADDR,
MT6359_RG_VSIM1_VOSEL_MASK << MT6359_RG_VSIM1_VOSEL_SHIFT,
480),
MT6359_LDO("ldo_vibr", VIBR, vibr_voltages,
MT6359_RG_LDO_VIBR_EN_ADDR, MT6359_RG_LDO_VIBR_EN_SHIFT,
MT6359_DA_VIBR_B_EN_ADDR, MT6359_RG_VIBR_VOSEL_ADDR,
MT6359_RG_VIBR_VOSEL_MASK << MT6359_RG_VIBR_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vrf12", VRF12, vrf12_voltages,
MT6359_RG_LDO_VRF12_EN_ADDR, MT6359_RG_LDO_VRF12_EN_SHIFT,
MT6359_DA_VRF12_B_EN_ADDR, MT6359_RG_VRF12_VOSEL_ADDR,
MT6359_RG_VRF12_VOSEL_MASK << MT6359_RG_VRF12_VOSEL_SHIFT,
120),
MT6359_REG_FIXED("ldo_vusb", VUSB, MT6359_RG_LDO_VUSB_EN_0_ADDR,
MT6359_DA_VUSB_B_EN_ADDR, 3000000),
MT6359_LDO_LINEAR("ldo_vsram_proc2", VSRAM_PROC2, 500000, 1293750, 6250,
0, mt_volt_range6, MT6359_RG_LDO_VSRAM_PROC2_EN_ADDR,
MT6359_DA_VSRAM_PROC2_B_EN_ADDR,
MT6359_RG_LDO_VSRAM_PROC2_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_PROC2_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_PROC2_VOSEL_SHIFT),
MT6359_LDO("ldo_vio18", VIO18, volt18_voltages,
MT6359_RG_LDO_VIO18_EN_ADDR, MT6359_RG_LDO_VIO18_EN_SHIFT,
MT6359_DA_VIO18_B_EN_ADDR, MT6359_RG_VIO18_VOSEL_ADDR,
MT6359_RG_VIO18_VOSEL_MASK << MT6359_RG_VIO18_VOSEL_SHIFT,
960),
MT6359_LDO("ldo_vcamio", VCAMIO, volt18_voltages,
MT6359_RG_LDO_VCAMIO_EN_ADDR, MT6359_RG_LDO_VCAMIO_EN_SHIFT,
MT6359_DA_VCAMIO_B_EN_ADDR, MT6359_RG_VCAMIO_VOSEL_ADDR,
MT6359_RG_VCAMIO_VOSEL_MASK << MT6359_RG_VCAMIO_VOSEL_SHIFT,
1290),
MT6359_REG_FIXED("ldo_vcn18", VCN18, MT6359_RG_LDO_VCN18_EN_ADDR,
MT6359_DA_VCN18_B_EN_ADDR, 1800000),
MT6359_REG_FIXED("ldo_vfe28", VFE28, MT6359_RG_LDO_VFE28_EN_ADDR,
MT6359_DA_VFE28_B_EN_ADDR, 2800000),
MT6359_LDO("ldo_vcn13", VCN13, vcn13_voltages,
MT6359_RG_LDO_VCN13_EN_ADDR, MT6359_RG_LDO_VCN13_EN_SHIFT,
MT6359_DA_VCN13_B_EN_ADDR, MT6359_RG_VCN13_VOSEL_ADDR,
MT6359_RG_VCN13_VOSEL_MASK << MT6359_RG_VCN13_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vcn33_1_bt", VCN33_1_BT, vcn33_voltages,
MT6359_RG_LDO_VCN33_1_EN_0_ADDR,
MT6359_RG_LDO_VCN33_1_EN_0_SHIFT,
MT6359_DA_VCN33_1_B_EN_ADDR, MT6359_RG_VCN33_1_VOSEL_ADDR,
MT6359_RG_VCN33_1_VOSEL_MASK <<
MT6359_RG_VCN33_1_VOSEL_SHIFT, 240),
MT6359_LDO("ldo_vcn33_1_wifi", VCN33_1_WIFI, vcn33_voltages,
MT6359_RG_LDO_VCN33_1_EN_1_ADDR,
MT6359_RG_LDO_VCN33_1_EN_1_SHIFT,
MT6359_DA_VCN33_1_B_EN_ADDR, MT6359_RG_VCN33_1_VOSEL_ADDR,
MT6359_RG_VCN33_1_VOSEL_MASK <<
MT6359_RG_VCN33_1_VOSEL_SHIFT, 240),
MT6359_REG_FIXED("ldo_vaux18", VAUX18, MT6359_RG_LDO_VAUX18_EN_ADDR,
MT6359_DA_VAUX18_B_EN_ADDR, 1800000),
MT6359_LDO_LINEAR("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750,
6250, 0, mt_volt_range6,
MT6359_RG_LDO_VSRAM_OTHERS_EN_ADDR,
MT6359_DA_VSRAM_OTHERS_B_EN_ADDR,
MT6359_RG_LDO_VSRAM_OTHERS_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_OTHERS_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_OTHERS_VOSEL_SHIFT),
MT6359_LDO("ldo_vefuse", VEFUSE, vefuse_voltages,
MT6359_RG_LDO_VEFUSE_EN_ADDR, MT6359_RG_LDO_VEFUSE_EN_SHIFT,
MT6359_DA_VEFUSE_B_EN_ADDR, MT6359_RG_VEFUSE_VOSEL_ADDR,
MT6359_RG_VEFUSE_VOSEL_MASK << MT6359_RG_VEFUSE_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vxo22", VXO22, vxo22_voltages,
MT6359_RG_LDO_VXO22_EN_ADDR, MT6359_RG_LDO_VXO22_EN_SHIFT,
MT6359_DA_VXO22_B_EN_ADDR, MT6359_RG_VXO22_VOSEL_ADDR,
MT6359_RG_VXO22_VOSEL_MASK << MT6359_RG_VXO22_VOSEL_SHIFT,
120),
MT6359_LDO("ldo_vrfck", VRFCK, vrfck_voltages,
MT6359_RG_LDO_VRFCK_EN_ADDR, MT6359_RG_LDO_VRFCK_EN_SHIFT,
MT6359_DA_VRFCK_B_EN_ADDR, MT6359_RG_VRFCK_VOSEL_ADDR,
MT6359_RG_VRFCK_VOSEL_MASK << MT6359_RG_VRFCK_VOSEL_SHIFT,
480),
MT6359_REG_FIXED("ldo_vbif28", VBIF28, MT6359_RG_LDO_VBIF28_EN_ADDR,
MT6359_DA_VBIF28_B_EN_ADDR, 2800000),
MT6359_LDO("ldo_vio28", VIO28, vio28_voltages,
MT6359_RG_LDO_VIO28_EN_ADDR, MT6359_RG_LDO_VIO28_EN_SHIFT,
MT6359_DA_VIO28_B_EN_ADDR, MT6359_RG_VIO28_VOSEL_ADDR,
MT6359_RG_VIO28_VOSEL_MASK << MT6359_RG_VIO28_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vemc", VEMC, vemc_voltages,
MT6359_RG_LDO_VEMC_EN_ADDR, MT6359_RG_LDO_VEMC_EN_SHIFT,
MT6359_DA_VEMC_B_EN_ADDR, MT6359_RG_VEMC_VOSEL_ADDR,
MT6359_RG_VEMC_VOSEL_MASK << MT6359_RG_VEMC_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vcn33_2_bt", VCN33_2_BT, vcn33_voltages,
MT6359_RG_LDO_VCN33_2_EN_0_ADDR,
MT6359_RG_LDO_VCN33_2_EN_0_SHIFT,
MT6359_DA_VCN33_2_B_EN_ADDR, MT6359_RG_VCN33_2_VOSEL_ADDR,
MT6359_RG_VCN33_2_VOSEL_MASK <<
MT6359_RG_VCN33_2_VOSEL_SHIFT, 240),
MT6359_LDO("ldo_vcn33_2_wifi", VCN33_2_WIFI, vcn33_voltages,
MT6359_RG_LDO_VCN33_2_EN_1_ADDR,
MT6359_RG_LDO_VCN33_2_EN_1_SHIFT,
MT6359_DA_VCN33_2_B_EN_ADDR, MT6359_RG_VCN33_2_VOSEL_ADDR,
MT6359_RG_VCN33_2_VOSEL_MASK <<
MT6359_RG_VCN33_2_VOSEL_SHIFT, 240),
MT6359_LDO("ldo_va12", VA12, va12_voltages,
MT6359_RG_LDO_VA12_EN_ADDR, MT6359_RG_LDO_VA12_EN_SHIFT,
MT6359_DA_VA12_B_EN_ADDR, MT6359_RG_VA12_VOSEL_ADDR,
MT6359_RG_VA12_VOSEL_MASK << MT6359_RG_VA12_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_va09", VA09, va09_voltages,
MT6359_RG_LDO_VA09_EN_ADDR, MT6359_RG_LDO_VA09_EN_SHIFT,
MT6359_DA_VA09_B_EN_ADDR, MT6359_RG_VA09_VOSEL_ADDR,
MT6359_RG_VA09_VOSEL_MASK << MT6359_RG_VA09_VOSEL_SHIFT,
240),
MT6359_LDO("ldo_vrf18", VRF18, vrf18_voltages,
MT6359_RG_LDO_VRF18_EN_ADDR, MT6359_RG_LDO_VRF18_EN_SHIFT,
MT6359_DA_VRF18_B_EN_ADDR, MT6359_RG_VRF18_VOSEL_ADDR,
MT6359_RG_VRF18_VOSEL_MASK << MT6359_RG_VRF18_VOSEL_SHIFT,
120),
MT6359_LDO_LINEAR("ldo_vsram_md", VSRAM_MD, 500000, 1100000, 6250,
0, mt_volt_range7, MT6359_RG_LDO_VSRAM_MD_EN_ADDR,
MT6359_DA_VSRAM_MD_B_EN_ADDR,
MT6359_RG_LDO_VSRAM_MD_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_MD_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_MD_VOSEL_SHIFT),
MT6359_LDO("ldo_vufs", VUFS, volt18_voltages,
MT6359_RG_LDO_VUFS_EN_ADDR, MT6359_RG_LDO_VUFS_EN_SHIFT,
MT6359_DA_VUFS_B_EN_ADDR, MT6359_RG_VUFS_VOSEL_ADDR,
MT6359_RG_VUFS_VOSEL_MASK << MT6359_RG_VUFS_VOSEL_SHIFT,
1920),
MT6359_LDO("ldo_vm18", VM18, volt18_voltages,
MT6359_RG_LDO_VM18_EN_ADDR, MT6359_RG_LDO_VM18_EN_SHIFT,
MT6359_DA_VM18_B_EN_ADDR, MT6359_RG_VM18_VOSEL_ADDR,
MT6359_RG_VM18_VOSEL_MASK << MT6359_RG_VM18_VOSEL_SHIFT,
1920),
MT6359_LDO("ldo_vbbck", VBBCK, vbbck_voltages,
MT6359_RG_LDO_VBBCK_EN_ADDR, MT6359_RG_LDO_VBBCK_EN_SHIFT,
MT6359_DA_VBBCK_B_EN_ADDR, MT6359_RG_VBBCK_VOSEL_ADDR,
MT6359_RG_VBBCK_VOSEL_MASK << MT6359_RG_VBBCK_VOSEL_SHIFT,
240),
MT6359_LDO_LINEAR("ldo_vsram_proc1", VSRAM_PROC1, 500000, 1293750, 6250,
0, mt_volt_range6, MT6359_RG_LDO_VSRAM_PROC1_EN_ADDR,
MT6359_DA_VSRAM_PROC1_B_EN_ADDR,
MT6359_RG_LDO_VSRAM_PROC1_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_PROC1_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_PROC1_VOSEL_SHIFT),
MT6359_LDO("ldo_vsim2", VSIM2, vsim2_voltages,
MT6359_RG_LDO_VSIM2_EN_ADDR, MT6359_RG_LDO_VSIM2_EN_SHIFT,
MT6359_DA_VSIM2_B_EN_ADDR, MT6359_RG_VSIM2_VOSEL_ADDR,
MT6359_RG_VSIM2_VOSEL_MASK << MT6359_RG_VSIM2_VOSEL_SHIFT,
480),
MT6359_LDO_LINEAR("ldo_vsram_others_sshub", VSRAM_OTHERS_SSHUB,
500000, 1293750, 6250, 0, mt_volt_range6,
MT6359_RG_LDO_VSRAM_OTHERS_SSHUB_EN_ADDR,
MT6359_DA_VSRAM_OTHERS_B_EN_ADDR,
MT6359_RG_LDO_VSRAM_OTHERS_SSHUB_VOSEL_ADDR,
MT6359_RG_LDO_VSRAM_OTHERS_SSHUB_VOSEL_MASK <<
MT6359_RG_LDO_VSRAM_OTHERS_SSHUB_VOSEL_SHIFT),
};

static int mt6359_regulator_probe(struct platform_device *pdev)
{
struct mt6397_chip *mt6397 = dev_get_drvdata(pdev->dev.parent);
struct regulator_config config = {};
struct regulator_dev *rdev;
int i;

config.dev = mt6397->dev;
config.regmap = mt6397->regmap;
for (i = 0; i < MT6359_MAX_REGULATOR; i++) {
config.driver_data = &mt6359_regulators[i];
rdev = devm_regulator_register(&pdev->dev, &mt6359_regulators[i].desc, &config);
if (IS_ERR(rdev)) {
dev_err(&pdev->dev, "failed to register %s\n",
mt6359_regulators[i].desc.name);
return PTR_ERR(rdev);
}
}

return 0;
}

static const struct platform_device_id mt6359_platform_ids[] = {
{"mt6359-regulator", 0},
{ /* sentinel */ },
};
MODULE_DEVICE_TABLE(platform, mt6359_platform_ids);

static struct platform_driver mt6359_regulator_driver = {
.driver = {
.name = "mt6359-regulator",
},
.probe = mt6359_regulator_probe,
.id_table = mt6359_platform_ids,
};

module_platform_driver(mt6359_regulator_driver);

MODULE_AUTHOR("Wen Su <wen.su@mediatek.com>");
MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6359 PMIC");
MODULE_LICENSE("GPL");
58 changes: 58 additions & 0 deletions include/linux/regulator/mt6359-regulator.h
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,58 @@
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (c) 2021 MediaTek Inc.
*/

#ifndef __LINUX_REGULATOR_MT6359_H
#define __LINUX_REGULATOR_MT6359_H

enum {
MT6359_ID_VS1 = 0,
MT6359_ID_VGPU11,
MT6359_ID_VMODEM,
MT6359_ID_VPU,
MT6359_ID_VCORE,
MT6359_ID_VS2,
MT6359_ID_VPA,
MT6359_ID_VPROC2,
MT6359_ID_VPROC1,
MT6359_ID_VCORE_SSHUB,
MT6359_ID_VAUD18 = 10,
MT6359_ID_VSIM1,
MT6359_ID_VIBR,
MT6359_ID_VRF12,
MT6359_ID_VUSB,
MT6359_ID_VSRAM_PROC2,
MT6359_ID_VIO18,
MT6359_ID_VCAMIO,
MT6359_ID_VCN18,
MT6359_ID_VFE28,
MT6359_ID_VCN13,
MT6359_ID_VCN33_1_BT,
MT6359_ID_VCN33_1_WIFI,
MT6359_ID_VAUX18,
MT6359_ID_VSRAM_OTHERS,
MT6359_ID_VEFUSE,
MT6359_ID_VXO22,
MT6359_ID_VRFCK,
MT6359_ID_VBIF28,
MT6359_ID_VIO28,
MT6359_ID_VEMC,
MT6359_ID_VCN33_2_BT,
MT6359_ID_VCN33_2_WIFI,
MT6359_ID_VA12,
MT6359_ID_VA09,
MT6359_ID_VRF18,
MT6359_ID_VSRAM_MD,
MT6359_ID_VUFS,
MT6359_ID_VM18,
MT6359_ID_VBBCK,
MT6359_ID_VSRAM_PROC1,
MT6359_ID_VSIM2,
MT6359_ID_VSRAM_OTHERS_SSHUB,
MT6359_ID_RG_MAX,
};

#define MT6359_MAX_REGULATOR MT6359_ID_RG_MAX

#endif /* __LINUX_REGULATOR_MT6359_H */

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