Unverified Commit f67ff1bd authored by Hsin-Hsiung Wang's avatar Hsin-Hsiung Wang Committed by Mark Brown
Browse files

regulator: mt6358: Add support for MT6358 regulator 



The MT6358 is a regulator found on boards based on MediaTek MT8183 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: default avatarHsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>
Link: https://lore.kernel.org/r/1566531931-9772-8-git-send-email-hsin-hsiung.wang@mediatek.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent fa00eb4e

drivers/regulator/Kconfig

+9 −0
Original line number Diff line number Diff line
@@ -619,6 +619,15 @@ config REGULATOR_MT6323 
	  This driver supports the control of different power rails of device

	  through regulator interface.



config REGULATOR_MT6358

	tristate "MediaTek MT6358 PMIC"

	depends on MFD_MT6397

	help

	  Say y here to select this option to enable the power regulator of

	  MediaTek MT6358 PMIC.

	  This driver supports the control of different power rails of device

	  through regulator interface.



config REGULATOR_MT6380

	tristate "MediaTek MT6380 PMIC"

	depends on MTK_PMIC_WRAP

drivers/regulator/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -79,6 +79,7 @@ obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o 
obj-$(CONFIG_REGULATOR_MCP16502) += mcp16502.o

obj-$(CONFIG_REGULATOR_MT6311) += mt6311-regulator.o

obj-$(CONFIG_REGULATOR_MT6323)	+= mt6323-regulator.o

obj-$(CONFIG_REGULATOR_MT6358)	+= mt6358-regulator.o

obj-$(CONFIG_REGULATOR_MT6380)	+= mt6380-regulator.o

obj-$(CONFIG_REGULATOR_MT6397)	+= mt6397-regulator.o

obj-$(CONFIG_REGULATOR_QCOM_RPM) += qcom_rpm-regulator.o

drivers/regulator/mt6358-regulator.c

0 → 100644
+549 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

//

// Copyright (c) 2019 MediaTek Inc.



#include <linux/mfd/mt6358/registers.h>

#include <linux/mfd/mt6397/core.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/mt6358-regulator.h>

#include <linux/regulator/of_regulator.h>



#define MT6358_BUCK_MODE_AUTO	0

#define MT6358_BUCK_MODE_FORCE_PWM	1



/*

 * MT6358 regulators' information

 *

 * @desc: standard fields of regulator description.

 * @qi: Mask for query enable signal status of regulators

 */

struct mt6358_regulator_info {

	struct regulator_desc desc;

	u32 status_reg;

	u32 qi;

	const u32 *index_table;

	unsigned int n_table;

	u32 vsel_shift;

	u32 da_vsel_reg;

	u32 da_vsel_mask;

	u32 da_vsel_shift;

	u32 modeset_reg;

	u32 modeset_mask;

	u32 modeset_shift;

};



#define MT6358_BUCK(match, vreg, min, max, step,		\

	volt_ranges, vosel_mask, _da_vsel_reg, _da_vsel_mask,	\

	_da_vsel_shift, _modeset_reg, _modeset_shift)		\

[MT6358_ID_##vreg] = {	\

	.desc = {	\

		.name = #vreg,	\

		.of_match = of_match_ptr(match),	\

		.ops = &mt6358_volt_range_ops,	\

		.type = REGULATOR_VOLTAGE,	\

		.id = MT6358_ID_##vreg,		\

		.owner = THIS_MODULE,		\

		.n_voltages = ((max) - (min)) / (step) + 1,	\

		.linear_ranges = volt_ranges,		\

		.n_linear_ranges = ARRAY_SIZE(volt_ranges),	\

		.vsel_reg = MT6358_BUCK_##vreg##_ELR0,	\

		.vsel_mask = vosel_mask,	\

		.enable_reg = MT6358_BUCK_##vreg##_CON0,	\

		.enable_mask = BIT(0),	\

		.of_map_mode = mt6358_map_mode,	\

	},	\

	.status_reg = MT6358_BUCK_##vreg##_DBG1,	\

	.qi = BIT(0),	\

	.da_vsel_reg = _da_vsel_reg,	\

	.da_vsel_mask = _da_vsel_mask,	\

	.da_vsel_shift = _da_vsel_shift,	\

	.modeset_reg = _modeset_reg,	\

	.modeset_mask = BIT(_modeset_shift),	\

	.modeset_shift = _modeset_shift	\

}



#define MT6358_LDO(match, vreg, ldo_volt_table,	\

	ldo_index_table, enreg, enbit, vosel,	\

	vosel_mask, vosel_shift)	\

[MT6358_ID_##vreg] = {	\

	.desc = {	\

		.name = #vreg,	\

		.of_match = of_match_ptr(match),	\

		.ops = &mt6358_volt_table_ops,	\

		.type = REGULATOR_VOLTAGE,	\

		.id = MT6358_ID_##vreg,	\

		.owner = THIS_MODULE,	\

		.n_voltages = ARRAY_SIZE(ldo_volt_table),	\

		.volt_table = ldo_volt_table,	\

		.vsel_reg = vosel,	\

		.vsel_mask = vosel_mask,	\

		.enable_reg = enreg,	\

		.enable_mask = BIT(enbit),	\

	},	\

	.status_reg = MT6358_LDO_##vreg##_CON1,	\

	.qi = BIT(15),	\

	.index_table = ldo_index_table,	\

	.n_table = ARRAY_SIZE(ldo_index_table),	\

	.vsel_shift = vosel_shift,	\

}



#define MT6358_LDO1(match, vreg, min, max, step,	\

	volt_ranges, _da_vsel_reg, _da_vsel_mask,	\

	_da_vsel_shift, vosel, vosel_mask)	\

[MT6358_ID_##vreg] = {	\

	.desc = {	\

		.name = #vreg,	\

		.of_match = of_match_ptr(match),	\

		.ops = &mt6358_volt_range_ops,	\

		.type = REGULATOR_VOLTAGE,	\

		.id = MT6358_ID_##vreg,	\

		.owner = THIS_MODULE,	\

		.n_voltages = ((max) - (min)) / (step) + 1,	\

		.linear_ranges = volt_ranges,	\

		.n_linear_ranges = ARRAY_SIZE(volt_ranges),	\

		.vsel_reg = vosel,	\

		.vsel_mask = vosel_mask,	\

		.enable_reg = MT6358_LDO_##vreg##_CON0,	\

		.enable_mask = BIT(0),	\

	},	\

	.da_vsel_reg = _da_vsel_reg,	\

	.da_vsel_mask = _da_vsel_mask,	\

	.da_vsel_shift = _da_vsel_shift,	\

	.status_reg = MT6358_LDO_##vreg##_DBG1,	\

	.qi = BIT(0),	\

}



#define MT6358_REG_FIXED(match, vreg,	\

	enreg, enbit, volt)	\

[MT6358_ID_##vreg] = {	\

	.desc = {	\

		.name = #vreg,	\

		.of_match = of_match_ptr(match),	\

		.ops = &mt6358_volt_fixed_ops,	\

		.type = REGULATOR_VOLTAGE,	\

		.id = MT6358_ID_##vreg,	\

		.owner = THIS_MODULE,	\

		.n_voltages = 1,	\

		.enable_reg = enreg,	\

		.enable_mask = BIT(enbit),	\

		.min_uV = volt,	\

	},	\

	.status_reg = MT6358_LDO_##vreg##_CON1,	\

	.qi = BIT(15),							\

}



static const struct regulator_linear_range buck_volt_range1[] = {

	REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250),

};



static const struct regulator_linear_range buck_volt_range2[] = {

	REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 12500),

};



static const struct regulator_linear_range buck_volt_range3[] = {

	REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000),

};



static const struct regulator_linear_range buck_volt_range4[] = {

	REGULATOR_LINEAR_RANGE(1000000, 0, 0x7f, 12500),

};



static const u32 vdram2_voltages[] = {

	600000, 1800000,

};



static const u32 vsim_voltages[] = {

	1700000, 1800000, 2700000, 3000000, 3100000,

};



static const u32 vibr_voltages[] = {

	1200000, 1300000, 1500000, 1800000,

	2000000, 2800000, 3000000, 3300000,

};



static const u32 vusb_voltages[] = {

	3000000, 3100000,

};



static const u32 vcamd_voltages[] = {

	900000, 1000000, 1100000, 1200000,

	1300000, 1500000, 1800000,

};



static const u32 vefuse_voltages[] = {

	1700000, 1800000, 1900000,

};



static const u32 vmch_vemc_voltages[] = {

	2900000, 3000000, 3300000,

};



static const u32 vcama_voltages[] = {

	1800000, 2500000, 2700000,

	2800000, 2900000, 3000000,

};



static const u32 vcn33_bt_wifi_voltages[] = {

	3300000, 3400000, 3500000,

};



static const u32 vmc_voltages[] = {

	1800000, 2900000, 3000000, 3300000,

};



static const u32 vldo28_voltages[] = {

	2800000, 3000000,

};



static const u32 vdram2_idx[] = {

	0, 12,

};



static const u32 vsim_idx[] = {

	3, 4, 8, 11, 12,

};



static const u32 vibr_idx[] = {

	0, 1, 2, 4, 5, 9, 11, 13,

};



static const u32 vusb_idx[] = {

	3, 4,

};



static const u32 vcamd_idx[] = {

	3, 4, 5, 6, 7, 9, 12,

};



static const u32 vefuse_idx[] = {

	11, 12, 13,

};



static const u32 vmch_vemc_idx[] = {

	2, 3, 5,

};



static const u32 vcama_idx[] = {

	0, 7, 9, 10, 11, 12,

};



static const u32 vcn33_bt_wifi_idx[] = {

	1, 2, 3,

};



static const u32 vmc_idx[] = {

	4, 10, 11, 13,

};



static const u32 vldo28_idx[] = {

	1, 3,

};



static unsigned int mt6358_map_mode(unsigned int mode)

{

	return mode == MT6358_BUCK_MODE_AUTO ?

		REGULATOR_MODE_NORMAL : REGULATOR_MODE_FAST;

}



static int mt6358_set_voltage_sel(struct regulator_dev *rdev,

				  unsigned int selector)

{

	int idx, ret;

	const u32 *pvol;

	struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);



	pvol = info->index_table;



	idx = pvol[selector];

	ret = regmap_update_bits(rdev->regmap, info->desc.vsel_reg,

				 info->desc.vsel_mask,

				 idx << info->vsel_shift);



	return ret;

}



static int mt6358_get_voltage_sel(struct regulator_dev *rdev)

{

	int idx, ret;

	u32 selector;

	struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);

	const u32 *pvol;



	ret = regmap_read(rdev->regmap, info->desc.vsel_reg, &selector);

	if (ret != 0) {

		dev_info(&rdev->dev,

			 "Failed to get mt6358 %s vsel reg: %d\n",

			 info->desc.name, ret);

		return ret;

	}



	selector = (selector & info->desc.vsel_mask) >> info->vsel_shift;

	pvol = info->index_table;

	for (idx = 0; idx < info->desc.n_voltages; idx++) {

		if (pvol[idx] == selector)

			return idx;

	}



	return -EINVAL;

}



static int mt6358_get_buck_voltage_sel(struct regulator_dev *rdev)

{

	int ret, regval;

	struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);



	ret = regmap_read(rdev->regmap, info->da_vsel_reg, &regval);

	if (ret != 0) {

		dev_err(&rdev->dev,

			"Failed to get mt6358 Buck %s vsel reg: %d\n",

			info->desc.name, ret);

		return ret;

	}



	ret = (regval >> info->da_vsel_shift) & info->da_vsel_mask;



	return ret;

}



static int mt6358_get_status(struct regulator_dev *rdev)

{

	int ret;

	u32 regval;

	struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);



	ret = regmap_read(rdev->regmap, info->status_reg, &regval);

	if (ret != 0) {

		dev_info(&rdev->dev, "Failed to get enable reg: %d\n", ret);

		return ret;

	}



	return (regval & info->qi) ? REGULATOR_STATUS_ON : REGULATOR_STATUS_OFF;

}



static int mt6358_regulator_set_mode(struct regulator_dev *rdev,

				     unsigned int mode)

{

	struct mt6358_regulator_info *info = rdev_get_drvdata(rdev);

	int 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:

		return -EINVAL;

	}



	dev_dbg(&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;



	return regmap_update_bits(rdev->regmap, info->modeset_reg,

				  info->modeset_mask, val);

}



static unsigned int mt6358_regulator_get_mode(struct regulator_dev *rdev)

{

	struct mt6358_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 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 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_get_buck_voltage_sel,

	.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 = 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 = mt6358_set_voltage_sel,

	.get_voltage_sel = mt6358_get_voltage_sel,

	.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 = mt6358_get_status,

};



static const struct regulator_ops mt6358_volt_fixed_ops = {

	.list_voltage = regulator_list_voltage_linear,

	.enable = regulator_enable_regmap,

	.disable = regulator_disable_regmap,

	.is_enabled = regulator_is_enabled_regmap,

	.get_status = mt6358_get_status,

};



/* The array is indexed by id(MT6358_ID_XXX) */

static struct mt6358_regulator_info mt6358_regulators[] = {

	MT6358_BUCK("buck_vdram1", VDRAM1, 500000, 2087500, 12500,

		    buck_volt_range2, 0x7f, MT6358_BUCK_VDRAM1_DBG0, 0x7f,

		    0, MT6358_VDRAM1_ANA_CON0, 8),

	MT6358_BUCK("buck_vcore", VCORE, 500000, 1293750, 6250,

		    buck_volt_range1, 0x7f, MT6358_BUCK_VCORE_DBG0, 0x7f,

		    0, MT6358_VCORE_VGPU_ANA_CON0, 1),

	MT6358_BUCK("buck_vpa", VPA, 500000, 3650000, 50000,

		    buck_volt_range3, 0x3f, MT6358_BUCK_VPA_DBG0, 0x3f, 0,

		    MT6358_VPA_ANA_CON0, 3),

	MT6358_BUCK("buck_vproc11", VPROC11, 500000, 1293750, 6250,

		    buck_volt_range1, 0x7f, MT6358_BUCK_VPROC11_DBG0, 0x7f,

		    0, MT6358_VPROC_ANA_CON0, 1),

	MT6358_BUCK("buck_vproc12", VPROC12, 500000, 1293750, 6250,

		    buck_volt_range1, 0x7f, MT6358_BUCK_VPROC12_DBG0, 0x7f,

		    0, MT6358_VPROC_ANA_CON0, 2),

	MT6358_BUCK("buck_vgpu", VGPU, 500000, 1293750, 6250,

		    buck_volt_range1, 0x7f, MT6358_BUCK_VGPU_ELR0, 0x7f, 0,

		    MT6358_VCORE_VGPU_ANA_CON0, 2),

	MT6358_BUCK("buck_vs2", VS2, 500000, 2087500, 12500,

		    buck_volt_range2, 0x7f, MT6358_BUCK_VS2_DBG0, 0x7f, 0,

		    MT6358_VS2_ANA_CON0, 8),

	MT6358_BUCK("buck_vmodem", VMODEM, 500000, 1293750, 6250,

		    buck_volt_range1, 0x7f, MT6358_BUCK_VMODEM_DBG0, 0x7f,

		    0, MT6358_VMODEM_ANA_CON0, 8),

	MT6358_BUCK("buck_vs1", VS1, 1000000, 2587500, 12500,

		    buck_volt_range4, 0x7f, MT6358_BUCK_VS1_DBG0, 0x7f, 0,

		    MT6358_VS1_ANA_CON0, 8),

	MT6358_REG_FIXED("ldo_vrf12", VRF12,

			 MT6358_LDO_VRF12_CON0, 0, 1200000),

	MT6358_REG_FIXED("ldo_vio18", VIO18,

			 MT6358_LDO_VIO18_CON0, 0, 1800000),

	MT6358_REG_FIXED("ldo_vcamio", VCAMIO,

			 MT6358_LDO_VCAMIO_CON0, 0, 1800000),

	MT6358_REG_FIXED("ldo_vcn18", VCN18, MT6358_LDO_VCN18_CON0, 0, 1800000),

	MT6358_REG_FIXED("ldo_vfe28", VFE28, MT6358_LDO_VFE28_CON0, 0, 2800000),

	MT6358_REG_FIXED("ldo_vcn28", VCN28, MT6358_LDO_VCN28_CON0, 0, 2800000),

	MT6358_REG_FIXED("ldo_vxo22", VXO22, MT6358_LDO_VXO22_CON0, 0, 2200000),

	MT6358_REG_FIXED("ldo_vaux18", VAUX18,

			 MT6358_LDO_VAUX18_CON0, 0, 1800000),

	MT6358_REG_FIXED("ldo_vbif28", VBIF28,

			 MT6358_LDO_VBIF28_CON0, 0, 2800000),

	MT6358_REG_FIXED("ldo_vio28", VIO28, MT6358_LDO_VIO28_CON0, 0, 2800000),

	MT6358_REG_FIXED("ldo_va12", VA12, MT6358_LDO_VA12_CON0, 0, 1200000),

	MT6358_REG_FIXED("ldo_vrf18", VRF18, MT6358_LDO_VRF18_CON0, 0, 1800000),

	MT6358_REG_FIXED("ldo_vaud28", VAUD28,

			 MT6358_LDO_VAUD28_CON0, 0, 2800000),

	MT6358_LDO("ldo_vdram2", VDRAM2, vdram2_voltages, vdram2_idx,

		   MT6358_LDO_VDRAM2_CON0, 0, MT6358_LDO_VDRAM2_ELR0, 0x10, 0),

	MT6358_LDO("ldo_vsim1", VSIM1, vsim_voltages, vsim_idx,

		   MT6358_LDO_VSIM1_CON0, 0, MT6358_VSIM1_ANA_CON0, 0xf00, 8),

	MT6358_LDO("ldo_vibr", VIBR, vibr_voltages, vibr_idx,

		   MT6358_LDO_VIBR_CON0, 0, MT6358_VIBR_ANA_CON0, 0xf00, 8),

	MT6358_LDO("ldo_vusb", VUSB, vusb_voltages, vusb_idx,

		   MT6358_LDO_VUSB_CON0_0, 0, MT6358_VUSB_ANA_CON0, 0x700, 8),

	MT6358_LDO("ldo_vcamd", VCAMD, vcamd_voltages, vcamd_idx,

		   MT6358_LDO_VCAMD_CON0, 0, MT6358_VCAMD_ANA_CON0, 0xf00, 8),

	MT6358_LDO("ldo_vefuse", VEFUSE, vefuse_voltages, vefuse_idx,

		   MT6358_LDO_VEFUSE_CON0, 0, MT6358_VEFUSE_ANA_CON0, 0xf00, 8),

	MT6358_LDO("ldo_vmch", VMCH, vmch_vemc_voltages, vmch_vemc_idx,

		   MT6358_LDO_VMCH_CON0, 0, MT6358_VMCH_ANA_CON0, 0x700, 8),

	MT6358_LDO("ldo_vcama1", VCAMA1, vcama_voltages, vcama_idx,

		   MT6358_LDO_VCAMA1_CON0, 0, MT6358_VCAMA1_ANA_CON0, 0xf00, 8),

	MT6358_LDO("ldo_vemc", VEMC, vmch_vemc_voltages, vmch_vemc_idx,

		   MT6358_LDO_VEMC_CON0, 0, MT6358_VEMC_ANA_CON0, 0x700, 8),

	MT6358_LDO("ldo_vcn33_bt", VCN33_BT, vcn33_bt_wifi_voltages,

		   vcn33_bt_wifi_idx, MT6358_LDO_VCN33_CON0_0,

		   0, MT6358_VCN33_ANA_CON0, 0x300, 8),

	MT6358_LDO("ldo_vcn33_wifi", VCN33_WIFI, vcn33_bt_wifi_voltages,

		   vcn33_bt_wifi_idx, MT6358_LDO_VCN33_CON0_1,

		   0, MT6358_VCN33_ANA_CON0, 0x300, 8),

	MT6358_LDO("ldo_vcama2", VCAMA2, vcama_voltages, vcama_idx,

		   MT6358_LDO_VCAMA2_CON0, 0, MT6358_VCAMA2_ANA_CON0, 0xf00, 8),

	MT6358_LDO("ldo_vmc", VMC, vmc_voltages, vmc_idx,

		   MT6358_LDO_VMC_CON0, 0, MT6358_VMC_ANA_CON0, 0xf00, 8),

	MT6358_LDO("ldo_vldo28", VLDO28, vldo28_voltages, vldo28_idx,

		   MT6358_LDO_VLDO28_CON0_0, 0,

		   MT6358_VLDO28_ANA_CON0, 0x300, 8),

	MT6358_LDO("ldo_vsim2", VSIM2, vsim_voltages, vsim_idx,

		   MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00, 8),

	MT6358_LDO1("ldo_vsram_proc11", VSRAM_PROC11, 500000, 1293750, 6250,

		    buck_volt_range1, MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f, 8,

		    MT6358_LDO_VSRAM_CON0, 0x7f),

	MT6358_LDO1("ldo_vsram_others", VSRAM_OTHERS, 500000, 1293750, 6250,

		    buck_volt_range1, MT6358_LDO_VSRAM_OTHERS_DBG0, 0x7f, 8,

		    MT6358_LDO_VSRAM_CON2, 0x7f),

	MT6358_LDO1("ldo_vsram_gpu", VSRAM_GPU, 500000, 1293750, 6250,

		    buck_volt_range1, MT6358_LDO_VSRAM_GPU_DBG0, 0x7f, 8,

		    MT6358_LDO_VSRAM_CON3, 0x7f),

	MT6358_LDO1("ldo_vsram_proc12", VSRAM_PROC12, 500000, 1293750, 6250,

		    buck_volt_range1, MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f, 8,

		    MT6358_LDO_VSRAM_CON1, 0x7f),

};



static int mt6358_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;



	for (i = 0; i < MT6358_MAX_REGULATOR; i++) {

		config.dev = &pdev->dev;

		config.driver_data = &mt6358_regulators[i];

		config.regmap = mt6397->regmap;



		rdev = devm_regulator_register(&pdev->dev,

					       &mt6358_regulators[i].desc,

					       &config);

		if (IS_ERR(rdev)) {

			dev_err(&pdev->dev, "failed to register %s\n",

				mt6358_regulators[i].desc.name);

			return PTR_ERR(rdev);

		}

	}



	return 0;

}



static const struct platform_device_id mt6358_platform_ids[] = {

	{"mt6358-regulator", 0},

	{ /* sentinel */ },

};

MODULE_DEVICE_TABLE(platform, mt6358_platform_ids);



static struct platform_driver mt6358_regulator_driver = {

	.driver = {

		.name = "mt6358-regulator",

	},

	.probe = mt6358_regulator_probe,

	.id_table = mt6358_platform_ids,

};



module_platform_driver(mt6358_regulator_driver);



MODULE_AUTHOR("Hsin-Hsiung Wang <hsin-hsiung.wang@mediatek.com>");

MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6358 PMIC");

MODULE_LICENSE("GPL");

include/linux/regulator/mt6358-regulator.h

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Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

/*

 * Copyright (c) 2019 MediaTek Inc.

 */



#ifndef __LINUX_REGULATOR_MT6358_H

#define __LINUX_REGULATOR_MT6358_H



enum {

	MT6358_ID_VDRAM1 = 0,

	MT6358_ID_VCORE,

	MT6358_ID_VPA,

	MT6358_ID_VPROC11,

	MT6358_ID_VPROC12,

	MT6358_ID_VGPU,

	MT6358_ID_VS2,

	MT6358_ID_VMODEM,

	MT6358_ID_VS1,

	MT6358_ID_VDRAM2 = 9,

	MT6358_ID_VSIM1,

	MT6358_ID_VIBR,

	MT6358_ID_VRF12,

	MT6358_ID_VIO18,

	MT6358_ID_VUSB,

	MT6358_ID_VCAMIO,

	MT6358_ID_VCAMD,

	MT6358_ID_VCN18,

	MT6358_ID_VFE28,

	MT6358_ID_VSRAM_PROC11,

	MT6358_ID_VCN28,

	MT6358_ID_VSRAM_OTHERS,

	MT6358_ID_VSRAM_GPU,

	MT6358_ID_VXO22,

	MT6358_ID_VEFUSE,

	MT6358_ID_VAUX18,

	MT6358_ID_VMCH,

	MT6358_ID_VBIF28,

	MT6358_ID_VSRAM_PROC12,

	MT6358_ID_VCAMA1,

	MT6358_ID_VEMC,

	MT6358_ID_VIO28,

	MT6358_ID_VA12,

	MT6358_ID_VRF18,

	MT6358_ID_VCN33_BT,

	MT6358_ID_VCN33_WIFI,

	MT6358_ID_VCAMA2,

	MT6358_ID_VMC,

	MT6358_ID_VLDO28,

	MT6358_ID_VAUD28,

	MT6358_ID_VSIM2,

	MT6358_ID_RG_MAX,

};



#define MT6358_MAX_REGULATOR	MT6358_ID_RG_MAX



#endif /* __LINUX_REGULATOR_MT6358_H */