regulator: add mt6357 regulator
Add regulator driver for the MT6357 PMIC. Signed-off-by: Fabien Parent <fparent@baylibre.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Signed-off-by: Alexandre Mergnat <amergnat@baylibre.com> Link: https://lore.kernel.org/r/20221005-mt6357-support-v7-7-477e60126749@baylibre.com Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Fabien Parent
Mark Brown
Родитель
b4387db19d
Коммит
dafc7cde23
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@ -805,6 +805,15 @@ config REGULATOR_MT6332
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This driver supports the control of different power rails of device
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through regulator interface
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config REGULATOR_MT6357
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tristate "MediaTek MT6357 PMIC"
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depends on MFD_MT6397
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help
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Say y here to select this option to enable the power regulator of
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MediaTek MT6357 PMIC.
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This driver supports the control of different power rails of device
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through regulator interface.
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config REGULATOR_MT6358
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tristate "MediaTek MT6358 PMIC"
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depends on MFD_MT6397
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@ -97,6 +97,7 @@ obj-$(CONFIG_REGULATOR_MT6315) += mt6315-regulator.o
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obj-$(CONFIG_REGULATOR_MT6323) += mt6323-regulator.o
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obj-$(CONFIG_REGULATOR_MT6331) += mt6331-regulator.o
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obj-$(CONFIG_REGULATOR_MT6332) += mt6332-regulator.o
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obj-$(CONFIG_REGULATOR_MT6357) += mt6357-regulator.o
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obj-$(CONFIG_REGULATOR_MT6358) += mt6358-regulator.o
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obj-$(CONFIG_REGULATOR_MT6359) += mt6359-regulator.o
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obj-$(CONFIG_REGULATOR_MT6360) += mt6360-regulator.o
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@ -0,0 +1,453 @@
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// SPDX-License-Identifier: GPL-2.0
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//
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// Copyright (c) 2022 MediaTek Inc.
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// Copyright (c) 2022 BayLibre, SAS.
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// Author: Chen Zhong <chen.zhong@mediatek.com>
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// Author: Fabien Parent <fparent@baylibre.com>
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// Author: Alexandre Mergnat <amergnat@baylibre.com>
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//
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// Based on mt6397-regulator.c
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//
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#include <linux/mfd/mt6397/core.h>
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#include <linux/mfd/mt6357/registers.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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#include <linux/regulator/mt6357-regulator.h>
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#include <linux/regulator/of_regulator.h>
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/*
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* MT6357 regulators' information
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*
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* @desc: standard fields of regulator description.
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* @da_vsel_reg: Monitor register for query buck's voltage.
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* @da_vsel_mask: Mask for query buck's voltage.
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*/
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struct mt6357_regulator_info {
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struct regulator_desc desc;
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u32 da_vsel_reg;
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u32 da_vsel_mask;
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};
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#define MT6357_BUCK(match, vreg, min, max, step, \
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volt_ranges, vosel_reg, vosel_mask, _da_vsel_mask) \
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[MT6357_ID_##vreg] = { \
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.desc = { \
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.name = #vreg, \
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.of_match = of_match_ptr(match), \
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.regulators_node = "regulators", \
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.ops = &mt6357_volt_range_ops, \
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.type = REGULATOR_VOLTAGE, \
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.id = MT6357_ID_##vreg, \
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.owner = THIS_MODULE, \
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.n_voltages = ((max) - (min)) / (step) + 1, \
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.linear_ranges = volt_ranges, \
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.n_linear_ranges = ARRAY_SIZE(volt_ranges), \
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.vsel_reg = vosel_reg, \
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.vsel_mask = vosel_mask, \
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.enable_reg = MT6357_BUCK_##vreg##_CON0, \
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.enable_mask = BIT(0), \
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}, \
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.da_vsel_reg = MT6357_BUCK_##vreg##_DBG0, \
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.da_vsel_mask = vosel_mask, \
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}
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#define MT6357_LDO(match, vreg, ldo_volt_table, \
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enreg, vosel, vosel_mask) \
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[MT6357_ID_##vreg] = { \
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.desc = { \
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.name = #vreg, \
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.of_match = of_match_ptr(match), \
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.regulators_node = "regulators", \
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.ops = &mt6357_volt_table_ops, \
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.type = REGULATOR_VOLTAGE, \
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.id = MT6357_ID_##vreg, \
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.owner = THIS_MODULE, \
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.n_voltages = ARRAY_SIZE(ldo_volt_table), \
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.volt_table = ldo_volt_table, \
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.vsel_reg = vosel, \
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.vsel_mask = vosel_mask, \
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.enable_reg = enreg, \
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.enable_mask = BIT(0), \
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}, \
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}
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#define MT6357_LDO1(match, vreg, min, max, step, volt_ranges, \
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enreg, vosel, vosel_mask) \
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[MT6357_ID_##vreg] = { \
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.desc = { \
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.name = #vreg, \
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.of_match = of_match_ptr(match), \
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.regulators_node = "regulators", \
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.ops = &mt6357_volt_range_ops, \
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.type = REGULATOR_VOLTAGE, \
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.id = MT6357_ID_##vreg, \
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.owner = THIS_MODULE, \
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.n_voltages = ((max) - (min)) / (step) + 1, \
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.linear_ranges = volt_ranges, \
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.n_linear_ranges = ARRAY_SIZE(volt_ranges), \
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.vsel_reg = vosel, \
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.vsel_mask = vosel_mask, \
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.enable_reg = enreg, \
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.enable_mask = BIT(0), \
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}, \
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.da_vsel_reg = MT6357_LDO_##vreg##_DBG0, \
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.da_vsel_mask = 0x7f00, \
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}
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#define MT6357_REG_FIXED(match, vreg, volt) \
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[MT6357_ID_##vreg] = { \
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.desc = { \
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.name = #vreg, \
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.of_match = of_match_ptr(match), \
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.regulators_node = "regulators", \
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.ops = &mt6357_volt_fixed_ops, \
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.type = REGULATOR_VOLTAGE, \
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.id = MT6357_ID_##vreg, \
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.owner = THIS_MODULE, \
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.n_voltages = 1, \
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.enable_reg = MT6357_LDO_##vreg##_CON0, \
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.enable_mask = BIT(0), \
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.min_uV = volt, \
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}, \
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}
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/**
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* mt6357_get_buck_voltage_sel - get_voltage_sel for regmap users
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*
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* @rdev: regulator to operate on
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*
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* Regulators that use regmap for their register I/O can set the
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* da_vsel_reg and da_vsel_mask fields in the info structure and
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* then use this as their get_voltage_vsel operation.
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*/
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static int mt6357_get_buck_voltage_sel(struct regulator_dev *rdev)
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{
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int ret, regval;
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struct mt6357_regulator_info *info = rdev_get_drvdata(rdev);
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ret = regmap_read(rdev->regmap, info->da_vsel_reg, ®val);
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if (ret != 0) {
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dev_err(&rdev->dev,
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"Failed to get mt6357 Buck %s vsel reg: %d\n",
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info->desc.name, ret);
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return ret;
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}
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regval &= info->da_vsel_mask;
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regval >>= ffs(info->da_vsel_mask) - 1;
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return regval;
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}
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static const struct regulator_ops mt6357_volt_range_ops = {
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.list_voltage = regulator_list_voltage_linear_range,
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.map_voltage = regulator_map_voltage_linear_range,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.get_voltage_sel = mt6357_get_buck_voltage_sel,
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.set_voltage_time_sel = regulator_set_voltage_time_sel,
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.is_enabled = regulator_is_enabled_regmap,
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};
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static const struct regulator_ops mt6357_volt_table_ops = {
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.list_voltage = regulator_list_voltage_table,
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.map_voltage = regulator_map_voltage_iterate,
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.set_voltage_sel = regulator_set_voltage_sel_regmap,
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.get_voltage_sel = regulator_get_voltage_sel_regmap,
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.set_voltage_time_sel = regulator_set_voltage_time_sel,
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.is_enabled = regulator_is_enabled_regmap,
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};
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static const struct regulator_ops mt6357_volt_fixed_ops = {
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.list_voltage = regulator_list_voltage_linear,
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.enable = regulator_enable_regmap,
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.disable = regulator_disable_regmap,
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.is_enabled = regulator_is_enabled_regmap,
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};
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static const int vxo22_voltages[] = {
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2200000,
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0,
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2400000,
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};
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static const int vefuse_voltages[] = {
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1200000,
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1300000,
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1500000,
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0,
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1800000,
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0,
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0,
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0,
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0,
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2800000,
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2900000,
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3000000,
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0,
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3300000,
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};
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static const int vcn33_voltages[] = {
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0,
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3300000,
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3400000,
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3500000,
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};
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static const int vcama_voltages[] = {
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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2500000,
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0,
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0,
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2800000,
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};
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static const int vcamd_voltages[] = {
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0,
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0,
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0,
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0,
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1000000,
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1100000,
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1200000,
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1300000,
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0,
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1500000,
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0,
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0,
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1800000,
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};
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static const int vldo28_voltages[] = {
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0,
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2800000,
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0,
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3000000,
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};
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static const int vdram_voltages[] = {
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0,
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1100000,
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1200000,
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};
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static const int vsim_voltages[] = {
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0,
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0,
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0,
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1700000,
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1800000,
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0,
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0,
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0,
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2700000,
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0,
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0,
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3000000,
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3100000,
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};
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static const int vibr_voltages[] = {
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1200000,
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1300000,
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1500000,
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0,
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1800000,
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2000000,
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0,
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0,
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0,
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2800000,
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0,
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3000000,
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0,
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3300000,
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};
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static const int vmc_voltages[] = {
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0,
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0,
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0,
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0,
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1800000,
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0,
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0,
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0,
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0,
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0,
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2900000,
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3000000,
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0,
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3300000,
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};
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static const int vmch_voltages[] = {
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0,
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0,
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2900000,
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3000000,
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0,
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3300000,
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};
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static const int vemc_voltages[] = {
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0,
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0,
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2900000,
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3000000,
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0,
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3300000,
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};
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static const int vusb_voltages[] = {
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0,
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0,
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0,
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3000000,
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3100000,
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};
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static const struct linear_range buck_volt_range1[] = {
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REGULATOR_LINEAR_RANGE(518750, 0, 0x7f, 6250),
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};
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static const struct linear_range buck_volt_range2[] = {
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REGULATOR_LINEAR_RANGE(500000, 0, 0x7f, 6250),
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};
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static const struct linear_range buck_volt_range3[] = {
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REGULATOR_LINEAR_RANGE(500000, 0, 0x3f, 50000),
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};
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static const struct linear_range buck_volt_range4[] = {
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REGULATOR_LINEAR_RANGE(1200000, 0, 0x7f, 12500),
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};
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/* The array is indexed by id(MT6357_ID_XXX) */
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static struct mt6357_regulator_info mt6357_regulators[] = {
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/* Bucks */
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MT6357_BUCK("buck-vcore", VCORE, 518750, 1312500, 6250,
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buck_volt_range1, MT6357_BUCK_VCORE_ELR0, 0x7f, 0x7f),
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MT6357_BUCK("buck-vproc", VPROC, 518750, 1312500, 6250,
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buck_volt_range1, MT6357_BUCK_VPROC_ELR0, 0x7f, 0x7f),
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MT6357_BUCK("buck-vmodem", VMODEM, 500000, 1293750, 6250,
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buck_volt_range2, MT6357_BUCK_VMODEM_ELR0, 0x7f, 0x7f),
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MT6357_BUCK("buck-vpa", VPA, 500000, 3650000, 50000,
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buck_volt_range3, MT6357_BUCK_VPA_CON1, 0x3f, 0x3f),
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MT6357_BUCK("buck-vs1", VS1, 1200000, 2787500, 12500,
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buck_volt_range4, MT6357_BUCK_VS1_ELR0, 0x7f, 0x7f),
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/* LDOs */
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MT6357_LDO("ldo-vcama", VCAMA, vcama_voltages,
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MT6357_LDO_VCAMA_CON0, MT6357_VCAMA_ANA_CON0, 0xf00),
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MT6357_LDO("ldo-vcamd", VCAMD, vcamd_voltages,
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MT6357_LDO_VCAMD_CON0, MT6357_VCAMD_ANA_CON0, 0xf00),
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MT6357_LDO("ldo-vcn33-bt", VCN33_BT, vcn33_voltages,
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MT6357_LDO_VCN33_CON0_0, MT6357_VCN33_ANA_CON0, 0x300),
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MT6357_LDO("ldo-vcn33-wifi", VCN33_WIFI, vcn33_voltages,
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MT6357_LDO_VCN33_CON0_1, MT6357_VCN33_ANA_CON0, 0x300),
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MT6357_LDO("ldo-vdram", VDRAM, vdram_voltages,
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MT6357_LDO_VDRAM_CON0, MT6357_VDRAM_ELR_2, 0x300),
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MT6357_LDO("ldo-vefuse", VEFUSE, vefuse_voltages,
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MT6357_LDO_VEFUSE_CON0, MT6357_VEFUSE_ANA_CON0, 0xf00),
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MT6357_LDO("ldo-vemc", VEMC, vemc_voltages,
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MT6357_LDO_VEMC_CON0, MT6357_VEMC_ANA_CON0, 0x700),
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MT6357_LDO("ldo-vibr", VIBR, vibr_voltages,
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MT6357_LDO_VIBR_CON0, MT6357_VIBR_ANA_CON0, 0xf00),
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MT6357_LDO("ldo-vldo28", VLDO28, vldo28_voltages,
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MT6357_LDO_VLDO28_CON0_0, MT6357_VLDO28_ANA_CON0, 0x300),
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MT6357_LDO("ldo-vmc", VMC, vmc_voltages,
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MT6357_LDO_VMC_CON0, MT6357_VMC_ANA_CON0, 0xf00),
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MT6357_LDO("ldo-vmch", VMCH, vmch_voltages,
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MT6357_LDO_VMCH_CON0, MT6357_VMCH_ANA_CON0, 0x700),
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MT6357_LDO("ldo-vsim1", VSIM1, vsim_voltages,
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MT6357_LDO_VSIM1_CON0, MT6357_VSIM1_ANA_CON0, 0xf00),
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MT6357_LDO("ldo-vsim2", VSIM2, vsim_voltages,
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MT6357_LDO_VSIM2_CON0, MT6357_VSIM2_ANA_CON0, 0xf00),
|
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MT6357_LDO("ldo-vusb33", VUSB33, vusb_voltages,
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MT6357_LDO_VUSB33_CON0_0, MT6357_VUSB33_ANA_CON0, 0x700),
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MT6357_LDO("ldo-vxo22", VXO22, vxo22_voltages,
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MT6357_LDO_VXO22_CON0, MT6357_VXO22_ANA_CON0, 0x300),
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MT6357_LDO1("ldo-vsram-proc", VSRAM_PROC, 518750, 1312500, 6250,
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buck_volt_range1, MT6357_LDO_VSRAM_PROC_CON0,
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MT6357_LDO_VSRAM_CON0, 0x7f00),
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MT6357_LDO1("ldo-vsram-others", VSRAM_OTHERS, 518750, 1312500, 6250,
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buck_volt_range1, MT6357_LDO_VSRAM_OTHERS_CON0,
|
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MT6357_LDO_VSRAM_CON1, 0x7f00),
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|
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MT6357_REG_FIXED("ldo-vaud28", VAUD28, 2800000),
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MT6357_REG_FIXED("ldo-vaux18", VAUX18, 1800000),
|
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MT6357_REG_FIXED("ldo-vcamio18", VCAMIO, 1800000),
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MT6357_REG_FIXED("ldo-vcn18", VCN18, 1800000),
|
||||
MT6357_REG_FIXED("ldo-vcn28", VCN28, 2800000),
|
||||
MT6357_REG_FIXED("ldo-vfe28", VFE28, 2800000),
|
||||
MT6357_REG_FIXED("ldo-vio18", VIO18, 1800000),
|
||||
MT6357_REG_FIXED("ldo-vio28", VIO28, 2800000),
|
||||
MT6357_REG_FIXED("ldo-vrf12", VRF12, 1200000),
|
||||
MT6357_REG_FIXED("ldo-vrf18", VRF18, 1800000),
|
||||
};
|
||||
|
||||
static int mt6357_regulator_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct mt6397_chip *mt6357 = dev_get_drvdata(pdev->dev.parent);
|
||||
struct regulator_config config = {};
|
||||
struct regulator_dev *rdev;
|
||||
int i;
|
||||
|
||||
pdev->dev.of_node = pdev->dev.parent->of_node;
|
||||
|
||||
for (i = 0; i < MT6357_MAX_REGULATOR; i++) {
|
||||
config.dev = &pdev->dev;
|
||||
config.driver_data = &mt6357_regulators[i];
|
||||
config.regmap = mt6357->regmap;
|
||||
|
||||
rdev = devm_regulator_register(&pdev->dev,
|
||||
&mt6357_regulators[i].desc,
|
||||
&config);
|
||||
if (IS_ERR(rdev)) {
|
||||
dev_err(&pdev->dev, "failed to register %s\n",
|
||||
mt6357_regulators[i].desc.name);
|
||||
return PTR_ERR(rdev);
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct platform_device_id mt6357_platform_ids[] = {
|
||||
{ "mt6357-regulator" },
|
||||
{ /* sentinel */ },
|
||||
};
|
||||
MODULE_DEVICE_TABLE(platform, mt6357_platform_ids);
|
||||
|
||||
static struct platform_driver mt6357_regulator_driver = {
|
||||
.driver = {
|
||||
.name = "mt6357-regulator",
|
||||
},
|
||||
.probe = mt6357_regulator_probe,
|
||||
.id_table = mt6357_platform_ids,
|
||||
};
|
||||
|
||||
module_platform_driver(mt6357_regulator_driver);
|
||||
|
||||
MODULE_AUTHOR("Chen Zhong <chen.zhong@mediatek.com>");
|
||||
MODULE_AUTHOR("Fabien Parent <fabien.parent@linaro.org>");
|
||||
MODULE_AUTHOR("Alexandre Mergnat <amergnat@baylibre.com>");
|
||||
MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6357 PMIC");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
|
@ -0,0 +1,51 @@
|
|||
/* SPDX-License-Identifier: GPL-2.0 */
|
||||
/*
|
||||
* Copyright (c) 2022 MediaTek Inc.
|
||||
*/
|
||||
|
||||
#ifndef __LINUX_REGULATOR_MT6357_H
|
||||
#define __LINUX_REGULATOR_MT6357_H
|
||||
|
||||
enum {
|
||||
/* Bucks */
|
||||
MT6357_ID_VCORE,
|
||||
MT6357_ID_VMODEM,
|
||||
MT6357_ID_VPA,
|
||||
MT6357_ID_VPROC,
|
||||
MT6357_ID_VS1,
|
||||
|
||||
/* LDOs */
|
||||
MT6357_ID_VAUX18,
|
||||
MT6357_ID_VAUD28,
|
||||
MT6357_ID_VCAMA,
|
||||
MT6357_ID_VCAMD,
|
||||
MT6357_ID_VCAMIO,
|
||||
MT6357_ID_VCN18,
|
||||
MT6357_ID_VCN28,
|
||||
MT6357_ID_VCN33_BT,
|
||||
MT6357_ID_VCN33_WIFI,
|
||||
MT6357_ID_VDRAM,
|
||||
MT6357_ID_VEFUSE,
|
||||
MT6357_ID_VEMC,
|
||||
MT6357_ID_VFE28,
|
||||
MT6357_ID_VIBR,
|
||||
MT6357_ID_VIO18,
|
||||
MT6357_ID_VIO28,
|
||||
MT6357_ID_VLDO28,
|
||||
MT6357_ID_VMC,
|
||||
MT6357_ID_VMCH,
|
||||
MT6357_ID_VRF12,
|
||||
MT6357_ID_VRF18,
|
||||
MT6357_ID_VSIM1,
|
||||
MT6357_ID_VSIM2,
|
||||
MT6357_ID_VSRAM_OTHERS,
|
||||
MT6357_ID_VSRAM_PROC,
|
||||
MT6357_ID_VUSB33,
|
||||
MT6357_ID_VXO22,
|
||||
|
||||
MT6357_ID_RG_MAX,
|
||||
};
|
||||
|
||||
#define MT6357_MAX_REGULATOR MT6357_ID_RG_MAX
|
||||
|
||||
#endif /* __LINUX_REGULATOR_MT6357_H */
|
||||
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