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git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
regulator: Add regulators driver for Marvell 88PM886 PMIC
Support the LDO and buck regulators of the Marvell 88PM886 PMIC.
Signed-off-by: Karel Balej <balejk@matfyz.cz>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20240531175109.15599-4-balejk@matfyz.cz
Signed-off-by: Lee Jones <lee@kernel.org>
authored by
Karel Balej
and committed by
Lee Jones
5d1a5144
860f8e3b
+399
+392
drivers/regulator/88pm886-regulator.c
+392
drivers/regulator/88pm886-regulator.c
···
1
+
// SPDX-License-Identifier: GPL-2.0-only
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#include <linux/i2c.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/regmap.h>
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#include <linux/regulator/driver.h>
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#include <linux/mfd/88pm886.h>
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static const struct regmap_config pm886_regulator_regmap_config = {
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.reg_bits = 8,
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.val_bits = 8,
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.max_register = PM886_REG_BUCK5_VOUT,
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};
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static const struct regulator_ops pm886_ldo_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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.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 pm886_buck_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 = regulator_get_voltage_sel_regmap,
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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 unsigned int pm886_ldo_volt_table1[] = {
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1700000, 1800000, 1900000, 2500000, 2800000, 2900000, 3100000, 3300000,
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};
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static const unsigned int pm886_ldo_volt_table2[] = {
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1200000, 1250000, 1700000, 1800000, 1850000, 1900000, 2500000, 2600000,
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2700000, 2750000, 2800000, 2850000, 2900000, 3000000, 3100000, 3300000,
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};
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static const unsigned int pm886_ldo_volt_table3[] = {
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1700000, 1800000, 1900000, 2000000, 2100000, 2500000, 2700000, 2800000,
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};
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static const struct linear_range pm886_buck_volt_ranges1[] = {
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REGULATOR_LINEAR_RANGE(600000, 0, 79, 12500),
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REGULATOR_LINEAR_RANGE(1600000, 80, 84, 50000),
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};
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static const struct linear_range pm886_buck_volt_ranges2[] = {
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REGULATOR_LINEAR_RANGE(600000, 0, 79, 12500),
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REGULATOR_LINEAR_RANGE(1600000, 80, 114, 50000),
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};
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static struct regulator_desc pm886_regulators[] = {
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{
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.name = "LDO1",
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.regulators_node = "regulators",
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.of_match = "ldo1",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN1,
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.enable_mask = BIT(0),
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.volt_table = pm886_ldo_volt_table1,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table1),
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.vsel_reg = PM886_REG_LDO1_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO2",
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.regulators_node = "regulators",
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.of_match = "ldo2",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN1,
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.enable_mask = BIT(1),
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.volt_table = pm886_ldo_volt_table1,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table1),
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.vsel_reg = PM886_REG_LDO2_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO3",
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.regulators_node = "regulators",
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.of_match = "ldo3",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN1,
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.enable_mask = BIT(2),
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.volt_table = pm886_ldo_volt_table1,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table1),
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.vsel_reg = PM886_REG_LDO3_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO4",
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.regulators_node = "regulators",
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.of_match = "ldo4",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN1,
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.enable_mask = BIT(3),
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.volt_table = pm886_ldo_volt_table2,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
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.vsel_reg = PM886_REG_LDO4_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO5",
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.regulators_node = "regulators",
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.of_match = "ldo5",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN1,
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.enable_mask = BIT(4),
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.volt_table = pm886_ldo_volt_table2,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
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.vsel_reg = PM886_REG_LDO5_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO6",
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.regulators_node = "regulators",
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.of_match = "ldo6",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN1,
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.enable_mask = BIT(5),
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.volt_table = pm886_ldo_volt_table2,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
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.vsel_reg = PM886_REG_LDO6_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO7",
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.regulators_node = "regulators",
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.of_match = "ldo7",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN1,
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.enable_mask = BIT(6),
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.volt_table = pm886_ldo_volt_table2,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
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.vsel_reg = PM886_REG_LDO7_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO8",
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.regulators_node = "regulators",
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.of_match = "ldo8",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN1,
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.enable_mask = BIT(7),
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.volt_table = pm886_ldo_volt_table2,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
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.vsel_reg = PM886_REG_LDO8_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO9",
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.regulators_node = "regulators",
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.of_match = "ldo9",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN2,
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.enable_mask = BIT(0),
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.volt_table = pm886_ldo_volt_table2,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
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.vsel_reg = PM886_REG_LDO9_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO10",
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.regulators_node = "regulators",
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.of_match = "ldo10",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN2,
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.enable_mask = BIT(1),
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.volt_table = pm886_ldo_volt_table2,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
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.vsel_reg = PM886_REG_LDO10_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO11",
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.regulators_node = "regulators",
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.of_match = "ldo11",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN2,
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.enable_mask = BIT(2),
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.volt_table = pm886_ldo_volt_table2,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
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.vsel_reg = PM886_REG_LDO11_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO12",
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.regulators_node = "regulators",
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.of_match = "ldo12",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN2,
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.enable_mask = BIT(3),
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.volt_table = pm886_ldo_volt_table2,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
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.vsel_reg = PM886_REG_LDO12_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO13",
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.regulators_node = "regulators",
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.of_match = "ldo13",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN2,
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.enable_mask = BIT(4),
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.volt_table = pm886_ldo_volt_table2,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
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.vsel_reg = PM886_REG_LDO13_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO14",
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.regulators_node = "regulators",
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.of_match = "ldo14",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN2,
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.enable_mask = BIT(5),
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.volt_table = pm886_ldo_volt_table2,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
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.vsel_reg = PM886_REG_LDO14_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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.name = "LDO15",
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.regulators_node = "regulators",
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.of_match = "ldo15",
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
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.enable_reg = PM886_REG_LDO_EN2,
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.enable_mask = BIT(6),
250
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.volt_table = pm886_ldo_volt_table2,
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.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2),
252
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.vsel_reg = PM886_REG_LDO15_VOUT,
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.vsel_mask = PM886_LDO_VSEL_MASK,
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},
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{
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+
.name = "LDO16",
257
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.regulators_node = "regulators",
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.of_match = "ldo16",
259
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.ops = &pm886_ldo_ops,
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.type = REGULATOR_VOLTAGE,
261
+
.enable_reg = PM886_REG_LDO_EN2,
262
+
.enable_mask = BIT(7),
263
+
.volt_table = pm886_ldo_volt_table3,
264
+
.n_voltages = ARRAY_SIZE(pm886_ldo_volt_table3),
265
+
.vsel_reg = PM886_REG_LDO16_VOUT,
266
+
.vsel_mask = PM886_LDO_VSEL_MASK,
267
+
},
268
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{
269
+
.name = "buck1",
270
+
.regulators_node = "regulators",
271
+
.of_match = "buck1",
272
+
.ops = &pm886_buck_ops,
273
+
.type = REGULATOR_VOLTAGE,
274
+
.n_voltages = 85,
275
+
.linear_ranges = pm886_buck_volt_ranges1,
276
+
.n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges1),
277
+
.vsel_reg = PM886_REG_BUCK1_VOUT,
278
+
.vsel_mask = PM886_BUCK_VSEL_MASK,
279
+
.enable_reg = PM886_REG_BUCK_EN,
280
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.enable_mask = BIT(0),
281
+
},
282
+
{
283
+
.name = "buck2",
284
+
.regulators_node = "regulators",
285
+
.of_match = "buck2",
286
+
.ops = &pm886_buck_ops,
287
+
.type = REGULATOR_VOLTAGE,
288
+
.n_voltages = 115,
289
+
.linear_ranges = pm886_buck_volt_ranges2,
290
+
.n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges2),
291
+
.vsel_reg = PM886_REG_BUCK2_VOUT,
292
+
.vsel_mask = PM886_BUCK_VSEL_MASK,
293
+
.enable_reg = PM886_REG_BUCK_EN,
294
+
.enable_mask = BIT(1),
295
+
},
296
+
{
297
+
.name = "buck3",
298
+
.regulators_node = "regulators",
299
+
.of_match = "buck3",
300
+
.ops = &pm886_buck_ops,
301
+
.type = REGULATOR_VOLTAGE,
302
+
.n_voltages = 115,
303
+
.linear_ranges = pm886_buck_volt_ranges2,
304
+
.n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges2),
305
+
.vsel_reg = PM886_REG_BUCK3_VOUT,
306
+
.vsel_mask = PM886_BUCK_VSEL_MASK,
307
+
.enable_reg = PM886_REG_BUCK_EN,
308
+
.enable_mask = BIT(2),
309
+
},
310
+
{
311
+
.name = "buck4",
312
+
.regulators_node = "regulators",
313
+
.of_match = "buck4",
314
+
.ops = &pm886_buck_ops,
315
+
.type = REGULATOR_VOLTAGE,
316
+
.n_voltages = 115,
317
+
.linear_ranges = pm886_buck_volt_ranges2,
318
+
.n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges2),
319
+
.vsel_reg = PM886_REG_BUCK4_VOUT,
320
+
.vsel_mask = PM886_BUCK_VSEL_MASK,
321
+
.enable_reg = PM886_REG_BUCK_EN,
322
+
.enable_mask = BIT(3),
323
+
},
324
+
{
325
+
.name = "buck5",
326
+
.regulators_node = "regulators",
327
+
.of_match = "buck5",
328
+
.ops = &pm886_buck_ops,
329
+
.type = REGULATOR_VOLTAGE,
330
+
.n_voltages = 115,
331
+
.linear_ranges = pm886_buck_volt_ranges2,
332
+
.n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges2),
333
+
.vsel_reg = PM886_REG_BUCK5_VOUT,
334
+
.vsel_mask = PM886_BUCK_VSEL_MASK,
335
+
.enable_reg = PM886_REG_BUCK_EN,
336
+
.enable_mask = BIT(4),
337
+
},
338
+
};
339
+
340
+
static int pm886_regulator_probe(struct platform_device *pdev)
341
+
{
342
+
struct pm886_chip *chip = dev_get_drvdata(pdev->dev.parent);
343
+
struct regulator_config rcfg = { };
344
+
struct device *dev = &pdev->dev;
345
+
struct regulator_desc *rdesc;
346
+
struct regulator_dev *rdev;
347
+
struct i2c_client *page;
348
+
struct regmap *regmap;
349
+
350
+
page = devm_i2c_new_dummy_device(dev, chip->client->adapter,
351
+
chip->client->addr + PM886_PAGE_OFFSET_REGULATORS);
352
+
if (IS_ERR(page))
353
+
return dev_err_probe(dev, PTR_ERR(page),
354
+
"Failed to initialize regulators client\n");
355
+
356
+
regmap = devm_regmap_init_i2c(page, &pm886_regulator_regmap_config);
357
+
if (IS_ERR(regmap))
358
+
return dev_err_probe(dev, PTR_ERR(regmap),
359
+
"Failed to initialize regulators regmap\n");
360
+
rcfg.regmap = regmap;
361
+
362
+
rcfg.dev = dev->parent;
363
+
364
+
for (int i = 0; i < ARRAY_SIZE(pm886_regulators); i++) {
365
+
rdesc = &pm886_regulators[i];
366
+
rdev = devm_regulator_register(dev, rdesc, &rcfg);
367
+
if (IS_ERR(rdev))
368
+
return dev_err_probe(dev, PTR_ERR(rdev),
369
+
"Failed to register %s\n", rdesc->name);
370
+
}
371
+
372
+
return 0;
373
+
}
374
+
375
+
static const struct platform_device_id pm886_regulator_id_table[] = {
376
+
{ "88pm886-regulator", },
377
+
{ }
378
+
};
379
+
MODULE_DEVICE_TABLE(platform, pm886_regulator_id_table);
380
+
381
+
static struct platform_driver pm886_regulator_driver = {
382
+
.driver = {
383
+
.name = "88pm886-regulator",
384
+
},
385
+
.probe = pm886_regulator_probe,
386
+
.id_table = pm886_regulator_id_table,
387
+
};
388
+
module_platform_driver(pm886_regulator_driver);
389
+
390
+
MODULE_DESCRIPTION("Marvell 88PM886 PMIC regulator driver");
391
+
MODULE_AUTHOR("Karel Balej <balejk@matfyz.cz>");
392
+
MODULE_LICENSE("GPL");
+6
drivers/regulator/Kconfig
+6
drivers/regulator/Kconfig
···
91
91
help
92
92
This driver supports 88PM8607 voltage regulator chips.
93
93
94
+
config REGULATOR_88PM886
95
+
tristate "Marvell 88PM886 voltage regulators"
96
+
depends on MFD_88PM886_PMIC
97
+
help
98
+
This driver implements support for Marvell 88PM886 voltage regulators.
99
+
94
100
config REGULATOR_ACT8865
95
101
tristate "Active-semi act8865 voltage regulator"
96
102
depends on I2C
+1
drivers/regulator/Makefile
+1
drivers/regulator/Makefile
···
14
14
obj-$(CONFIG_REGULATOR_88PG86X) += 88pg86x.o
15
15
obj-$(CONFIG_REGULATOR_88PM800) += 88pm800-regulator.o
16
16
obj-$(CONFIG_REGULATOR_88PM8607) += 88pm8607.o
17
+
obj-$(CONFIG_REGULATOR_88PM886) += 88pm886-regulator.o
17
18
obj-$(CONFIG_REGULATOR_CROS_EC) += cros-ec-regulator.o
18
19
obj-$(CONFIG_REGULATOR_CPCAP) += cpcap-regulator.o
19
20
obj-$(CONFIG_REGULATOR_AAT2870) += aat2870-regulator.o