| // SPDX-License-Identifier: GPL-2.0-only |
| #include <linux/i2c.h> |
| #include <linux/module.h> |
| #include <linux/platform_device.h> |
| #include <linux/regmap.h> |
| #include <linux/regulator/driver.h> |
| |
| #include <linux/mfd/88pm886.h> |
| |
| static const struct regmap_config pm886_regulator_regmap_config = { |
| .reg_bits = 8, |
| .val_bits = 8, |
| .max_register = PM886_REG_BUCK5_VOUT, |
| }; |
| |
| static const struct regulator_ops pm886_ldo_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, |
| .enable = regulator_enable_regmap, |
| .disable = regulator_disable_regmap, |
| .is_enabled = regulator_is_enabled_regmap, |
| }; |
| |
| static const struct regulator_ops pm886_buck_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, |
| .enable = regulator_enable_regmap, |
| .disable = regulator_disable_regmap, |
| .is_enabled = regulator_is_enabled_regmap, |
| }; |
| |
| static const unsigned int pm886_ldo_volt_table1[] = { |
| 1700000, 1800000, 1900000, 2500000, 2800000, 2900000, 3100000, 3300000, |
| }; |
| |
| static const unsigned int pm886_ldo_volt_table2[] = { |
| 1200000, 1250000, 1700000, 1800000, 1850000, 1900000, 2500000, 2600000, |
| 2700000, 2750000, 2800000, 2850000, 2900000, 3000000, 3100000, 3300000, |
| }; |
| |
| static const unsigned int pm886_ldo_volt_table3[] = { |
| 1700000, 1800000, 1900000, 2000000, 2100000, 2500000, 2700000, 2800000, |
| }; |
| |
| static const struct linear_range pm886_buck_volt_ranges1[] = { |
| REGULATOR_LINEAR_RANGE(600000, 0, 79, 12500), |
| REGULATOR_LINEAR_RANGE(1600000, 80, 84, 50000), |
| }; |
| |
| static const struct linear_range pm886_buck_volt_ranges2[] = { |
| REGULATOR_LINEAR_RANGE(600000, 0, 79, 12500), |
| REGULATOR_LINEAR_RANGE(1600000, 80, 114, 50000), |
| }; |
| |
| static struct regulator_desc pm886_regulators[] = { |
| { |
| .name = "LDO1", |
| .regulators_node = "regulators", |
| .of_match = "ldo1", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN1, |
| .enable_mask = BIT(0), |
| .volt_table = pm886_ldo_volt_table1, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table1), |
| .vsel_reg = PM886_REG_LDO1_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO2", |
| .regulators_node = "regulators", |
| .of_match = "ldo2", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN1, |
| .enable_mask = BIT(1), |
| .volt_table = pm886_ldo_volt_table1, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table1), |
| .vsel_reg = PM886_REG_LDO2_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO3", |
| .regulators_node = "regulators", |
| .of_match = "ldo3", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN1, |
| .enable_mask = BIT(2), |
| .volt_table = pm886_ldo_volt_table1, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table1), |
| .vsel_reg = PM886_REG_LDO3_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO4", |
| .regulators_node = "regulators", |
| .of_match = "ldo4", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN1, |
| .enable_mask = BIT(3), |
| .volt_table = pm886_ldo_volt_table2, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2), |
| .vsel_reg = PM886_REG_LDO4_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO5", |
| .regulators_node = "regulators", |
| .of_match = "ldo5", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN1, |
| .enable_mask = BIT(4), |
| .volt_table = pm886_ldo_volt_table2, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2), |
| .vsel_reg = PM886_REG_LDO5_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO6", |
| .regulators_node = "regulators", |
| .of_match = "ldo6", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN1, |
| .enable_mask = BIT(5), |
| .volt_table = pm886_ldo_volt_table2, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2), |
| .vsel_reg = PM886_REG_LDO6_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO7", |
| .regulators_node = "regulators", |
| .of_match = "ldo7", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN1, |
| .enable_mask = BIT(6), |
| .volt_table = pm886_ldo_volt_table2, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2), |
| .vsel_reg = PM886_REG_LDO7_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO8", |
| .regulators_node = "regulators", |
| .of_match = "ldo8", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN1, |
| .enable_mask = BIT(7), |
| .volt_table = pm886_ldo_volt_table2, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2), |
| .vsel_reg = PM886_REG_LDO8_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO9", |
| .regulators_node = "regulators", |
| .of_match = "ldo9", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN2, |
| .enable_mask = BIT(0), |
| .volt_table = pm886_ldo_volt_table2, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2), |
| .vsel_reg = PM886_REG_LDO9_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO10", |
| .regulators_node = "regulators", |
| .of_match = "ldo10", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN2, |
| .enable_mask = BIT(1), |
| .volt_table = pm886_ldo_volt_table2, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2), |
| .vsel_reg = PM886_REG_LDO10_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO11", |
| .regulators_node = "regulators", |
| .of_match = "ldo11", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN2, |
| .enable_mask = BIT(2), |
| .volt_table = pm886_ldo_volt_table2, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2), |
| .vsel_reg = PM886_REG_LDO11_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO12", |
| .regulators_node = "regulators", |
| .of_match = "ldo12", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN2, |
| .enable_mask = BIT(3), |
| .volt_table = pm886_ldo_volt_table2, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2), |
| .vsel_reg = PM886_REG_LDO12_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO13", |
| .regulators_node = "regulators", |
| .of_match = "ldo13", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN2, |
| .enable_mask = BIT(4), |
| .volt_table = pm886_ldo_volt_table2, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2), |
| .vsel_reg = PM886_REG_LDO13_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO14", |
| .regulators_node = "regulators", |
| .of_match = "ldo14", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN2, |
| .enable_mask = BIT(5), |
| .volt_table = pm886_ldo_volt_table2, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2), |
| .vsel_reg = PM886_REG_LDO14_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO15", |
| .regulators_node = "regulators", |
| .of_match = "ldo15", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN2, |
| .enable_mask = BIT(6), |
| .volt_table = pm886_ldo_volt_table2, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table2), |
| .vsel_reg = PM886_REG_LDO15_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "LDO16", |
| .regulators_node = "regulators", |
| .of_match = "ldo16", |
| .ops = &pm886_ldo_ops, |
| .type = REGULATOR_VOLTAGE, |
| .enable_reg = PM886_REG_LDO_EN2, |
| .enable_mask = BIT(7), |
| .volt_table = pm886_ldo_volt_table3, |
| .n_voltages = ARRAY_SIZE(pm886_ldo_volt_table3), |
| .vsel_reg = PM886_REG_LDO16_VOUT, |
| .vsel_mask = PM886_LDO_VSEL_MASK, |
| }, |
| { |
| .name = "buck1", |
| .regulators_node = "regulators", |
| .of_match = "buck1", |
| .ops = &pm886_buck_ops, |
| .type = REGULATOR_VOLTAGE, |
| .n_voltages = 85, |
| .linear_ranges = pm886_buck_volt_ranges1, |
| .n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges1), |
| .vsel_reg = PM886_REG_BUCK1_VOUT, |
| .vsel_mask = PM886_BUCK_VSEL_MASK, |
| .enable_reg = PM886_REG_BUCK_EN, |
| .enable_mask = BIT(0), |
| }, |
| { |
| .name = "buck2", |
| .regulators_node = "regulators", |
| .of_match = "buck2", |
| .ops = &pm886_buck_ops, |
| .type = REGULATOR_VOLTAGE, |
| .n_voltages = 115, |
| .linear_ranges = pm886_buck_volt_ranges2, |
| .n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges2), |
| .vsel_reg = PM886_REG_BUCK2_VOUT, |
| .vsel_mask = PM886_BUCK_VSEL_MASK, |
| .enable_reg = PM886_REG_BUCK_EN, |
| .enable_mask = BIT(1), |
| }, |
| { |
| .name = "buck3", |
| .regulators_node = "regulators", |
| .of_match = "buck3", |
| .ops = &pm886_buck_ops, |
| .type = REGULATOR_VOLTAGE, |
| .n_voltages = 115, |
| .linear_ranges = pm886_buck_volt_ranges2, |
| .n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges2), |
| .vsel_reg = PM886_REG_BUCK3_VOUT, |
| .vsel_mask = PM886_BUCK_VSEL_MASK, |
| .enable_reg = PM886_REG_BUCK_EN, |
| .enable_mask = BIT(2), |
| }, |
| { |
| .name = "buck4", |
| .regulators_node = "regulators", |
| .of_match = "buck4", |
| .ops = &pm886_buck_ops, |
| .type = REGULATOR_VOLTAGE, |
| .n_voltages = 115, |
| .linear_ranges = pm886_buck_volt_ranges2, |
| .n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges2), |
| .vsel_reg = PM886_REG_BUCK4_VOUT, |
| .vsel_mask = PM886_BUCK_VSEL_MASK, |
| .enable_reg = PM886_REG_BUCK_EN, |
| .enable_mask = BIT(3), |
| }, |
| { |
| .name = "buck5", |
| .regulators_node = "regulators", |
| .of_match = "buck5", |
| .ops = &pm886_buck_ops, |
| .type = REGULATOR_VOLTAGE, |
| .n_voltages = 115, |
| .linear_ranges = pm886_buck_volt_ranges2, |
| .n_linear_ranges = ARRAY_SIZE(pm886_buck_volt_ranges2), |
| .vsel_reg = PM886_REG_BUCK5_VOUT, |
| .vsel_mask = PM886_BUCK_VSEL_MASK, |
| .enable_reg = PM886_REG_BUCK_EN, |
| .enable_mask = BIT(4), |
| }, |
| }; |
| |
| static int pm886_regulator_probe(struct platform_device *pdev) |
| { |
| struct pm886_chip *chip = dev_get_drvdata(pdev->dev.parent); |
| struct regulator_config rcfg = { }; |
| struct device *dev = &pdev->dev; |
| struct regulator_desc *rdesc; |
| struct regulator_dev *rdev; |
| struct i2c_client *page; |
| struct regmap *regmap; |
| |
| page = devm_i2c_new_dummy_device(dev, chip->client->adapter, |
| chip->client->addr + PM886_PAGE_OFFSET_REGULATORS); |
| if (IS_ERR(page)) |
| return dev_err_probe(dev, PTR_ERR(page), |
| "Failed to initialize regulators client\n"); |
| |
| regmap = devm_regmap_init_i2c(page, &pm886_regulator_regmap_config); |
| if (IS_ERR(regmap)) |
| return dev_err_probe(dev, PTR_ERR(regmap), |
| "Failed to initialize regulators regmap\n"); |
| rcfg.regmap = regmap; |
| |
| rcfg.dev = dev->parent; |
| |
| for (int i = 0; i < ARRAY_SIZE(pm886_regulators); i++) { |
| rdesc = &pm886_regulators[i]; |
| rdev = devm_regulator_register(dev, rdesc, &rcfg); |
| if (IS_ERR(rdev)) |
| return dev_err_probe(dev, PTR_ERR(rdev), |
| "Failed to register %s\n", rdesc->name); |
| } |
| |
| return 0; |
| } |
| |
| static const struct platform_device_id pm886_regulator_id_table[] = { |
| { "88pm886-regulator", }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(platform, pm886_regulator_id_table); |
| |
| static struct platform_driver pm886_regulator_driver = { |
| .driver = { |
| .name = "88pm886-regulator", |
| }, |
| .probe = pm886_regulator_probe, |
| .id_table = pm886_regulator_id_table, |
| }; |
| module_platform_driver(pm886_regulator_driver); |
| |
| MODULE_DESCRIPTION("Marvell 88PM886 PMIC regulator driver"); |
| MODULE_AUTHOR("Karel Balej <balejk@matfyz.cz>"); |
| MODULE_LICENSE("GPL"); |
