From d635711daa98be86d4c7fd01499c34f566b54ccb Mon Sep 17 00:00:00 2001 From: AndrĂ© Fabian Silva Delgado Date: Fri, 10 Jun 2016 05:30:17 -0300 Subject: Linux-libre 4.6.2-gnu --- drivers/regulator/Kconfig | 28 +- drivers/regulator/Makefile | 9 +- drivers/regulator/act8865-regulator.c | 8 +- drivers/regulator/act8945a-regulator.c | 165 +++++++ drivers/regulator/ad5398.c | 6 +- drivers/regulator/axp20x-regulator.c | 69 +-- drivers/regulator/core.c | 92 ++-- drivers/regulator/da9063-regulator.c | 2 +- drivers/regulator/da9210-regulator.c | 5 + drivers/regulator/fan53555.c | 18 + drivers/regulator/gpio-regulator.c | 8 +- drivers/regulator/helpers.c | 23 + drivers/regulator/hi655x-regulator.c | 227 +++++++++ drivers/regulator/lp872x.c | 38 +- drivers/regulator/ltc3589.c | 15 +- drivers/regulator/max77620-regulator.c | 813 +++++++++++++++++++++++++++++++++ drivers/regulator/max77686-regulator.c | 570 +++++++++++++++++++++++ drivers/regulator/max77686.c | 570 ----------------------- drivers/regulator/max77802-regulator.c | 610 +++++++++++++++++++++++++ drivers/regulator/max77802.c | 610 ------------------------- drivers/regulator/mt6397-regulator.c | 15 +- drivers/regulator/of_regulator.c | 21 +- drivers/regulator/pv88060-regulator.c | 8 +- drivers/regulator/pv88090-regulator.c | 8 +- drivers/regulator/pwm-regulator.c | 29 +- drivers/regulator/s2mps11.c | 71 ++- drivers/regulator/tps65912-regulator.c | 613 +++++-------------------- drivers/regulator/vexpress-regulator.c | 121 +++++ drivers/regulator/vexpress.c | 121 ----- 29 files changed, 2961 insertions(+), 1932 deletions(-) create mode 100644 drivers/regulator/act8945a-regulator.c create mode 100644 drivers/regulator/hi655x-regulator.c create mode 100644 drivers/regulator/max77620-regulator.c create mode 100644 drivers/regulator/max77686-regulator.c delete mode 100644 drivers/regulator/max77686.c create mode 100644 drivers/regulator/max77802-regulator.c delete mode 100644 drivers/regulator/max77802.c create mode 100644 drivers/regulator/vexpress-regulator.c delete mode 100644 drivers/regulator/vexpress.c (limited to 'drivers/regulator') diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 8155e80dd..c77dc08b1 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -78,6 +78,15 @@ config REGULATOR_ACT8865 This driver controls a active-semi act8865 voltage output regulator via I2C bus. +config REGULATOR_ACT8945A + tristate "Active-semi ACT8945A voltage regulator" + depends on MFD_ACT8945A + help + This driver controls a active-semi ACT8945A voltage regulator + via I2C bus. The ACT8945A features three step-down DC/DC converters + and four low-dropout linear regulators, along with a ActivePath + battery charger. + config REGULATOR_AD5398 tristate "Analog Devices AD5398/AD5821 regulators" depends on I2C @@ -261,6 +270,14 @@ config REGULATOR_HI6421 21 general purpose LDOs, 3 dedicated LDOs, and 5 BUCKs. All of them come with support to either ECO (idle) or sleep mode. +config REGULATOR_HI655X + tristate "Hisilicon HI655X PMIC regulators support" + depends on ARCH_HISI || COMPILE_TEST + depends on MFD_HI655X_PMIC && OF + help + This driver provides support for the voltage regulators of the + Hisilicon Hi655x PMIC device. + config REGULATOR_ISL9305 tristate "Intersil ISL9305 regulator" depends on I2C @@ -343,6 +360,15 @@ config REGULATOR_MAX1586 regulator via I2C bus. The provided regulator is suitable for PXA27x chips to control VCC_CORE and VCC_USIM voltages. +config REGULATOR_MAX77620 + tristate "Maxim 77620/MAX20024 voltage regulator" + depends on MFD_MAX77620 + help + This driver controls Maxim MAX77620 voltage output regulator + via I2C bus. The provided regulator is suitable for Tegra + chip to control Step-Down DC-DC and LDOs. Say Y here to + enable the regulator driver. + config REGULATOR_MAX8649 tristate "Maxim 8649 voltage regulator" depends on I2C @@ -762,7 +788,7 @@ config REGULATOR_TPS65910 config REGULATOR_TPS65912 tristate "TI TPS65912 Power regulator" - depends on (MFD_TPS65912_I2C || MFD_TPS65912_SPI) + depends on MFD_TPS65912 help This driver supports TPS65912 voltage regulator chip. diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile index 980b1943f..61bfbb9d4 100644 --- a/drivers/regulator/Makefile +++ b/drivers/regulator/Makefile @@ -15,6 +15,7 @@ obj-$(CONFIG_REGULATOR_AAT2870) += aat2870-regulator.o obj-$(CONFIG_REGULATOR_AB3100) += ab3100.o obj-$(CONFIG_REGULATOR_AB8500) += ab8500-ext.o ab8500.o obj-$(CONFIG_REGULATOR_ACT8865) += act8865-regulator.o +obj-$(CONFIG_REGULATOR_ACT8945A) += act8945a-regulator.o obj-$(CONFIG_REGULATOR_AD5398) += ad5398.o obj-$(CONFIG_REGULATOR_ANATOP) += anatop-regulator.o obj-$(CONFIG_REGULATOR_ARIZONA) += arizona-micsupp.o arizona-ldo1.o @@ -34,6 +35,7 @@ obj-$(CONFIG_REGULATOR_DB8500_PRCMU) += db8500-prcmu.o obj-$(CONFIG_REGULATOR_FAN53555) += fan53555.o obj-$(CONFIG_REGULATOR_GPIO) += gpio-regulator.o obj-$(CONFIG_REGULATOR_HI6421) += hi6421-regulator.o +obj-$(CONFIG_REGULATOR_HI655X) += hi655x-regulator.o obj-$(CONFIG_REGULATOR_ISL6271A) += isl6271a-regulator.o obj-$(CONFIG_REGULATOR_ISL9305) += isl9305.o obj-$(CONFIG_REGULATOR_LM363X) += lm363x-regulator.o @@ -46,6 +48,7 @@ obj-$(CONFIG_REGULATOR_LP8755) += lp8755.o obj-$(CONFIG_REGULATOR_LTC3589) += ltc3589.o obj-$(CONFIG_REGULATOR_MAX14577) += max14577.o obj-$(CONFIG_REGULATOR_MAX1586) += max1586.o +obj-$(CONFIG_REGULATOR_MAX77620) += max77620-regulator.o obj-$(CONFIG_REGULATOR_MAX8649) += max8649.o obj-$(CONFIG_REGULATOR_MAX8660) += max8660.o obj-$(CONFIG_REGULATOR_MAX8907) += max8907-regulator.o @@ -54,9 +57,9 @@ obj-$(CONFIG_REGULATOR_MAX8952) += max8952.o obj-$(CONFIG_REGULATOR_MAX8973) += max8973-regulator.o obj-$(CONFIG_REGULATOR_MAX8997) += max8997.o obj-$(CONFIG_REGULATOR_MAX8998) += max8998.o -obj-$(CONFIG_REGULATOR_MAX77686) += max77686.o +obj-$(CONFIG_REGULATOR_MAX77686) += max77686-regulator.o obj-$(CONFIG_REGULATOR_MAX77693) += max77693.o -obj-$(CONFIG_REGULATOR_MAX77802) += max77802.o +obj-$(CONFIG_REGULATOR_MAX77802) += max77802-regulator.o obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o obj-$(CONFIG_REGULATOR_MC13892) += mc13892-regulator.o obj-$(CONFIG_REGULATOR_MC13XXX_CORE) += mc13xxx-regulator-core.o @@ -98,7 +101,7 @@ obj-$(CONFIG_REGULATOR_TPS65910) += tps65910-regulator.o obj-$(CONFIG_REGULATOR_TPS65912) += tps65912-regulator.o obj-$(CONFIG_REGULATOR_TPS80031) += tps80031-regulator.o obj-$(CONFIG_REGULATOR_TWL4030) += twl-regulator.o -obj-$(CONFIG_REGULATOR_VEXPRESS) += vexpress.o +obj-$(CONFIG_REGULATOR_VEXPRESS) += vexpress-regulator.o obj-$(CONFIG_REGULATOR_WM831X) += wm831x-dcdc.o obj-$(CONFIG_REGULATOR_WM831X) += wm831x-isink.o obj-$(CONFIG_REGULATOR_WM831X) += wm831x-ldo.o diff --git a/drivers/regulator/act8865-regulator.c b/drivers/regulator/act8865-regulator.c index f8d4cd3d1..000d566e3 100644 --- a/drivers/regulator/act8865-regulator.c +++ b/drivers/regulator/act8865-regulator.c @@ -218,7 +218,7 @@ static const struct regulator_desc act8600_regulators[] = { .ops = &act8865_ldo_ops, .type = REGULATOR_VOLTAGE, .n_voltages = 1, - .fixed_uV = 1800000, + .fixed_uV = 3300000, .enable_reg = ACT8600_LDO910_CTRL, .enable_mask = ACT8865_ENA, .owner = THIS_MODULE, @@ -369,7 +369,7 @@ static int act8865_pdata_from_dt(struct device *dev, for (i = 0; i < num_matches; i++) { regulator->id = i; regulator->name = matches[i].name; - regulator->platform_data = matches[i].init_data; + regulator->init_data = matches[i].init_data; of_node[i] = matches[i].of_node; regulator++; } @@ -396,7 +396,7 @@ static struct regulator_init_data for (i = 0; i < pdata->num_regulators; i++) { if (pdata->regulators[i].id == id) - return pdata->regulators[i].platform_data; + return pdata->regulators[i].init_data; } return NULL; @@ -415,7 +415,7 @@ static void act8865_power_off(void) static int act8865_pmic_probe(struct i2c_client *client, const struct i2c_device_id *i2c_id) { - static const struct regulator_desc *regulators; + const struct regulator_desc *regulators; struct act8865_platform_data pdata_of, *pdata; struct device *dev = &client->dev; struct device_node **of_node; diff --git a/drivers/regulator/act8945a-regulator.c b/drivers/regulator/act8945a-regulator.c new file mode 100644 index 000000000..441864b9f --- /dev/null +++ b/drivers/regulator/act8945a-regulator.c @@ -0,0 +1,165 @@ +/* + * Voltage regulation driver for active-semi ACT8945A PMIC + * + * Copyright (C) 2015 Atmel Corporation + * + * Author: Wenyou Yang + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + */ + +#include +#include +#include +#include +#include + +/** + * ACT8945A Global Register Map. + */ +#define ACT8945A_SYS_MODE 0x00 +#define ACT8945A_SYS_CTRL 0x01 +#define ACT8945A_DCDC1_VSET1 0x20 +#define ACT8945A_DCDC1_VSET2 0x21 +#define ACT8945A_DCDC1_CTRL 0x22 +#define ACT8945A_DCDC2_VSET1 0x30 +#define ACT8945A_DCDC2_VSET2 0x31 +#define ACT8945A_DCDC2_CTRL 0x32 +#define ACT8945A_DCDC3_VSET1 0x40 +#define ACT8945A_DCDC3_VSET2 0x41 +#define ACT8945A_DCDC3_CTRL 0x42 +#define ACT8945A_LDO1_VSET 0x50 +#define ACT8945A_LDO1_CTRL 0x51 +#define ACT8945A_LDO2_VSET 0x54 +#define ACT8945A_LDO2_CTRL 0x55 +#define ACT8945A_LDO3_VSET 0x60 +#define ACT8945A_LDO3_CTRL 0x61 +#define ACT8945A_LDO4_VSET 0x64 +#define ACT8945A_LDO4_CTRL 0x65 + +/** + * Field Definitions. + */ +#define ACT8945A_ENA 0x80 /* ON - [7] */ +#define ACT8945A_VSEL_MASK 0x3F /* VSET - [5:0] */ + +/** + * ACT8945A Voltage Number + */ +#define ACT8945A_VOLTAGE_NUM 64 + +enum { + ACT8945A_ID_DCDC1, + ACT8945A_ID_DCDC2, + ACT8945A_ID_DCDC3, + ACT8945A_ID_LDO1, + ACT8945A_ID_LDO2, + ACT8945A_ID_LDO3, + ACT8945A_ID_LDO4, + ACT8945A_REG_NUM, +}; + +static const struct regulator_linear_range act8945a_voltage_ranges[] = { + REGULATOR_LINEAR_RANGE(600000, 0, 23, 25000), + REGULATOR_LINEAR_RANGE(1200000, 24, 47, 50000), + REGULATOR_LINEAR_RANGE(2400000, 48, 63, 100000), +}; + +static struct regulator_ops act8945a_ops = { + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .is_enabled = regulator_is_enabled_regmap, +}; + +#define ACT89xx_REG(_name, _family, _id, _vsel_reg, _supply) \ + [_family##_ID_##_id] = { \ + .name = _name, \ + .supply_name = _supply, \ + .of_match = of_match_ptr("REG_"#_id), \ + .regulators_node = of_match_ptr("regulators"), \ + .id = _family##_ID_##_id, \ + .type = REGULATOR_VOLTAGE, \ + .ops = &act8945a_ops, \ + .n_voltages = ACT8945A_VOLTAGE_NUM, \ + .linear_ranges = act8945a_voltage_ranges, \ + .n_linear_ranges = ARRAY_SIZE(act8945a_voltage_ranges), \ + .vsel_reg = _family##_##_id##_##_vsel_reg, \ + .vsel_mask = ACT8945A_VSEL_MASK, \ + .enable_reg = _family##_##_id##_CTRL, \ + .enable_mask = ACT8945A_ENA, \ + .owner = THIS_MODULE, \ + } + +static const struct regulator_desc act8945a_regulators[] = { + ACT89xx_REG("DCDC_REG1", ACT8945A, DCDC1, VSET1, "vp1"), + ACT89xx_REG("DCDC_REG2", ACT8945A, DCDC2, VSET1, "vp2"), + ACT89xx_REG("DCDC_REG3", ACT8945A, DCDC3, VSET1, "vp3"), + ACT89xx_REG("LDO_REG1", ACT8945A, LDO1, VSET, "inl45"), + ACT89xx_REG("LDO_REG2", ACT8945A, LDO2, VSET, "inl45"), + ACT89xx_REG("LDO_REG3", ACT8945A, LDO3, VSET, "inl67"), + ACT89xx_REG("LDO_REG4", ACT8945A, LDO4, VSET, "inl67"), +}; + +static const struct regulator_desc act8945a_alt_regulators[] = { + ACT89xx_REG("DCDC_REG1", ACT8945A, DCDC1, VSET2, "vp1"), + ACT89xx_REG("DCDC_REG2", ACT8945A, DCDC2, VSET2, "vp2"), + ACT89xx_REG("DCDC_REG3", ACT8945A, DCDC3, VSET2, "vp3"), + ACT89xx_REG("LDO_REG1", ACT8945A, LDO1, VSET, "inl45"), + ACT89xx_REG("LDO_REG2", ACT8945A, LDO2, VSET, "inl45"), + ACT89xx_REG("LDO_REG3", ACT8945A, LDO3, VSET, "inl67"), + ACT89xx_REG("LDO_REG4", ACT8945A, LDO4, VSET, "inl67"), +}; + +static int act8945a_pmic_probe(struct platform_device *pdev) +{ + struct regulator_config config = { }; + const struct regulator_desc *regulators; + struct regulator_dev *rdev; + int i, num_regulators; + bool voltage_select; + + voltage_select = of_property_read_bool(pdev->dev.parent->of_node, + "active-semi,vsel-high"); + + if (voltage_select) { + regulators = act8945a_alt_regulators; + num_regulators = ARRAY_SIZE(act8945a_alt_regulators); + } else { + regulators = act8945a_regulators; + num_regulators = ARRAY_SIZE(act8945a_regulators); + } + + config.dev = &pdev->dev; + config.dev->of_node = pdev->dev.parent->of_node; + for (i = 0; i < num_regulators; i++) { + rdev = devm_regulator_register(&pdev->dev, ®ulators[i], &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, + "failed to register %s regulator\n", + regulators[i].name); + return PTR_ERR(rdev); + } + } + + return 0; +} + +static struct platform_driver act8945a_pmic_driver = { + .driver = { + .name = "act8945a-regulator", + }, + .probe = act8945a_pmic_probe, +}; +module_platform_driver(act8945a_pmic_driver); + +MODULE_DESCRIPTION("Active-semi ACT8945A voltage regulator driver"); +MODULE_AUTHOR("Wenyou Yang "); +MODULE_LICENSE("GPL"); diff --git a/drivers/regulator/ad5398.c b/drivers/regulator/ad5398.c index ea50a886b..8b0f788a9 100644 --- a/drivers/regulator/ad5398.c +++ b/drivers/regulator/ad5398.c @@ -58,10 +58,12 @@ static int ad5398_write_reg(struct i2c_client *client, const unsigned short data val = cpu_to_be16(data); ret = i2c_master_send(client, (char *)&val, 2); - if (ret < 0) + if (ret != 2) { dev_err(&client->dev, "I2C write error\n"); + return ret < 0 ? ret : -EIO; + } - return ret; + return 0; } static int ad5398_get_current_limit(struct regulator_dev *rdev) diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c index f2e1a39ce..514a5e8fd 100644 --- a/drivers/regulator/axp20x-regulator.c +++ b/drivers/regulator/axp20x-regulator.c @@ -39,7 +39,7 @@ #define AXP_DESC_IO(_family, _id, _match, _supply, _min, _max, _step, _vreg, \ _vmask, _ereg, _emask, _enable_val, _disable_val) \ [_family##_##_id] = { \ - .name = #_id, \ + .name = (_match), \ .supply_name = (_supply), \ .of_match = of_match_ptr(_match), \ .regulators_node = of_match_ptr("regulators"), \ @@ -61,7 +61,7 @@ #define AXP_DESC(_family, _id, _match, _supply, _min, _max, _step, _vreg, \ _vmask, _ereg, _emask) \ [_family##_##_id] = { \ - .name = #_id, \ + .name = (_match), \ .supply_name = (_supply), \ .of_match = of_match_ptr(_match), \ .regulators_node = of_match_ptr("regulators"), \ @@ -78,21 +78,15 @@ .ops = &axp20x_ops, \ } -#define AXP_DESC_SW(_family, _id, _match, _supply, _min, _max, _step, _vreg, \ - _vmask, _ereg, _emask) \ +#define AXP_DESC_SW(_family, _id, _match, _supply, _ereg, _emask) \ [_family##_##_id] = { \ - .name = #_id, \ + .name = (_match), \ .supply_name = (_supply), \ .of_match = of_match_ptr(_match), \ .regulators_node = of_match_ptr("regulators"), \ .type = REGULATOR_VOLTAGE, \ .id = _family##_##_id, \ - .n_voltages = (((_max) - (_min)) / (_step) + 1), \ .owner = THIS_MODULE, \ - .min_uV = (_min) * 1000, \ - .uV_step = (_step) * 1000, \ - .vsel_reg = (_vreg), \ - .vsel_mask = (_vmask), \ .enable_reg = (_ereg), \ .enable_mask = (_emask), \ .ops = &axp20x_ops_sw, \ @@ -100,7 +94,7 @@ #define AXP_DESC_FIXED(_family, _id, _match, _supply, _volt) \ [_family##_##_id] = { \ - .name = #_id, \ + .name = (_match), \ .supply_name = (_supply), \ .of_match = of_match_ptr(_match), \ .regulators_node = of_match_ptr("regulators"), \ @@ -112,39 +106,34 @@ .ops = &axp20x_ops_fixed \ } -#define AXP_DESC_TABLE(_family, _id, _match, _supply, _table, _vreg, _vmask, \ - _ereg, _emask) \ +#define AXP_DESC_RANGES(_family, _id, _match, _supply, _ranges, _n_voltages, \ + _vreg, _vmask, _ereg, _emask) \ [_family##_##_id] = { \ - .name = #_id, \ + .name = (_match), \ .supply_name = (_supply), \ .of_match = of_match_ptr(_match), \ .regulators_node = of_match_ptr("regulators"), \ .type = REGULATOR_VOLTAGE, \ .id = _family##_##_id, \ - .n_voltages = ARRAY_SIZE(_table), \ + .n_voltages = (_n_voltages), \ .owner = THIS_MODULE, \ .vsel_reg = (_vreg), \ .vsel_mask = (_vmask), \ .enable_reg = (_ereg), \ .enable_mask = (_emask), \ - .volt_table = (_table), \ - .ops = &axp20x_ops_table, \ + .linear_ranges = (_ranges), \ + .n_linear_ranges = ARRAY_SIZE(_ranges), \ + .ops = &axp20x_ops_range, \ } -static const int axp20x_ldo4_data[] = { 1250000, 1300000, 1400000, 1500000, 1600000, - 1700000, 1800000, 1900000, 2000000, 2500000, - 2700000, 2800000, 3000000, 3100000, 3200000, - 3300000 }; - static struct regulator_ops axp20x_ops_fixed = { .list_voltage = regulator_list_voltage_linear, }; -static struct regulator_ops axp20x_ops_table = { +static struct regulator_ops axp20x_ops_range = { .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, - .list_voltage = regulator_list_voltage_table, - .map_voltage = regulator_map_voltage_ascend, + .list_voltage = regulator_list_voltage_linear_range, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, @@ -160,13 +149,19 @@ static struct regulator_ops axp20x_ops = { }; static struct regulator_ops axp20x_ops_sw = { - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .list_voltage = regulator_list_voltage_linear, .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, }; +static const struct regulator_linear_range axp20x_ldo4_ranges[] = { + REGULATOR_LINEAR_RANGE(1250000, 0x0, 0x0, 0), + REGULATOR_LINEAR_RANGE(1300000, 0x1, 0x8, 100000), + REGULATOR_LINEAR_RANGE(2500000, 0x9, 0x9, 0), + REGULATOR_LINEAR_RANGE(2700000, 0xa, 0xb, 100000), + REGULATOR_LINEAR_RANGE(3000000, 0xc, 0xf, 100000), +}; + static const struct regulator_desc axp20x_regulators[] = { AXP_DESC(AXP20X, DCDC2, "dcdc2", "vin2", 700, 2275, 25, AXP20X_DCDC2_V_OUT, 0x3f, AXP20X_PWR_OUT_CTRL, 0x10), @@ -177,8 +172,9 @@ static const struct regulator_desc axp20x_regulators[] = { AXP20X_LDO24_V_OUT, 0xf0, AXP20X_PWR_OUT_CTRL, 0x04), AXP_DESC(AXP20X, LDO3, "ldo3", "ldo3in", 700, 3500, 25, AXP20X_LDO3_V_OUT, 0x7f, AXP20X_PWR_OUT_CTRL, 0x40), - AXP_DESC_TABLE(AXP20X, LDO4, "ldo4", "ldo24in", axp20x_ldo4_data, - AXP20X_LDO24_V_OUT, 0x0f, AXP20X_PWR_OUT_CTRL, 0x08), + AXP_DESC_RANGES(AXP20X, LDO4, "ldo4", "ldo24in", axp20x_ldo4_ranges, + 16, AXP20X_LDO24_V_OUT, 0x0f, AXP20X_PWR_OUT_CTRL, + 0x08), AXP_DESC_IO(AXP20X, LDO5, "ldo5", "ldo5in", 1800, 3300, 100, AXP20X_LDO5_V_OUT, 0xf0, AXP20X_GPIO0_CTRL, 0x07, AXP20X_IO_ENABLED, AXP20X_IO_DISABLED), @@ -196,8 +192,8 @@ static const struct regulator_desc axp22x_regulators[] = { AXP_DESC(AXP22X, DCDC5, "dcdc5", "vin5", 1000, 2550, 50, AXP22X_DCDC5_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(5)), /* secondary switchable output of DCDC1 */ - AXP_DESC_SW(AXP22X, DC1SW, "dc1sw", NULL, 1600, 3400, 100, - AXP22X_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(7)), + AXP_DESC_SW(AXP22X, DC1SW, "dc1sw", NULL, AXP22X_PWR_OUT_CTRL2, + BIT(7)), /* LDO regulator internally chained to DCDC5 */ AXP_DESC(AXP22X, DC5LDO, "dc5ldo", NULL, 700, 1400, 100, AXP22X_DC5LDO_V_OUT, 0x7, AXP22X_PWR_OUT_CTRL1, BIT(0)), @@ -221,10 +217,14 @@ static const struct regulator_desc axp22x_regulators[] = { AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)), AXP_DESC(AXP22X, ELDO3, "eldo3", "eldoin", 700, 3300, 100, AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)), - AXP_DESC_IO(AXP22X, LDO_IO0, "ldo_io0", "ips", 1800, 3300, 100, + /* Note the datasheet only guarantees reliable operation up to + * 3.3V, this needs to be enforced via dts provided constraints */ + AXP_DESC_IO(AXP22X, LDO_IO0, "ldo_io0", "ips", 700, 3800, 100, AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07, AXP22X_IO_ENABLED, AXP22X_IO_DISABLED), - AXP_DESC_IO(AXP22X, LDO_IO1, "ldo_io1", "ips", 1800, 3300, 100, + /* Note the datasheet only guarantees reliable operation up to + * 3.3V, this needs to be enforced via dts provided constraints */ + AXP_DESC_IO(AXP22X, LDO_IO1, "ldo_io1", "ips", 700, 3800, 100, AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07, AXP22X_IO_ENABLED, AXP22X_IO_DISABLED), AXP_DESC_FIXED(AXP22X, RTC_LDO, "rtc_ldo", "ips", 3000), @@ -244,6 +244,7 @@ static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq) step = 75; break; case AXP221_ID: + case AXP223_ID: min = 1800; max = 4050; def = 3000; @@ -322,6 +323,7 @@ static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 work break; case AXP221_ID: + case AXP223_ID: if (id < AXP22X_DCDC1 || id > AXP22X_DCDC5) return -EINVAL; @@ -360,6 +362,7 @@ static int axp20x_regulator_probe(struct platform_device *pdev) nregulators = AXP20X_REG_ID_MAX; break; case AXP221_ID: + case AXP223_ID: regulators = axp22x_regulators; nregulators = AXP22X_REG_ID_MAX; break; diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 744c9889f..fd0e4e37f 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1057,18 +1057,18 @@ static int set_machine_constraints(struct regulator_dev *rdev, ret = machine_constraints_voltage(rdev, rdev->constraints); if (ret != 0) - goto out; + return ret; ret = machine_constraints_current(rdev, rdev->constraints); if (ret != 0) - goto out; + return ret; if (rdev->constraints->ilim_uA && ops->set_input_current_limit) { ret = ops->set_input_current_limit(rdev, rdev->constraints->ilim_uA); if (ret < 0) { rdev_err(rdev, "failed to set input limit\n"); - goto out; + return ret; } } @@ -1077,21 +1077,20 @@ static int set_machine_constraints(struct regulator_dev *rdev, ret = suspend_prepare(rdev, rdev->constraints->initial_state); if (ret < 0) { rdev_err(rdev, "failed to set suspend state\n"); - goto out; + return ret; } } if (rdev->constraints->initial_mode) { if (!ops->set_mode) { rdev_err(rdev, "no set_mode operation\n"); - ret = -EINVAL; - goto out; + return -EINVAL; } ret = ops->set_mode(rdev, rdev->constraints->initial_mode); if (ret < 0) { rdev_err(rdev, "failed to set initial mode: %d\n", ret); - goto out; + return ret; } } @@ -1102,7 +1101,7 @@ static int set_machine_constraints(struct regulator_dev *rdev, ret = _regulator_do_enable(rdev); if (ret < 0 && ret != -EINVAL) { rdev_err(rdev, "failed to enable\n"); - goto out; + return ret; } } @@ -1111,7 +1110,7 @@ static int set_machine_constraints(struct regulator_dev *rdev, ret = ops->set_ramp_delay(rdev, rdev->constraints->ramp_delay); if (ret < 0) { rdev_err(rdev, "failed to set ramp_delay\n"); - goto out; + return ret; } } @@ -1119,7 +1118,7 @@ static int set_machine_constraints(struct regulator_dev *rdev, ret = ops->set_pull_down(rdev); if (ret < 0) { rdev_err(rdev, "failed to set pull down\n"); - goto out; + return ret; } } @@ -1127,7 +1126,7 @@ static int set_machine_constraints(struct regulator_dev *rdev, ret = ops->set_soft_start(rdev); if (ret < 0) { rdev_err(rdev, "failed to set soft start\n"); - goto out; + return ret; } } @@ -1136,16 +1135,34 @@ static int set_machine_constraints(struct regulator_dev *rdev, ret = ops->set_over_current_protection(rdev); if (ret < 0) { rdev_err(rdev, "failed to set over current protection\n"); - goto out; + return ret; + } + } + + if (rdev->constraints->active_discharge && ops->set_active_discharge) { + bool ad_state = (rdev->constraints->active_discharge == + REGULATOR_ACTIVE_DISCHARGE_ENABLE) ? true : false; + + ret = ops->set_active_discharge(rdev, ad_state); + if (ret < 0) { + rdev_err(rdev, "failed to set active discharge\n"); + return ret; + } + } + + if (rdev->constraints->active_discharge && ops->set_active_discharge) { + bool ad_state = (rdev->constraints->active_discharge == + REGULATOR_ACTIVE_DISCHARGE_ENABLE) ? true : false; + + ret = ops->set_active_discharge(rdev, ad_state); + if (ret < 0) { + rdev_err(rdev, "failed to set active discharge\n"); + return ret; } } print_constraints(rdev); return 0; -out: - kfree(rdev->constraints); - rdev->constraints = NULL; - return ret; } /** @@ -3823,6 +3840,11 @@ static void rdev_init_debugfs(struct regulator_dev *rdev) &rdev->bypass_count); } +static int regulator_register_resolve_supply(struct device *dev, void *data) +{ + return regulator_resolve_supply(dev_to_rdev(dev)); +} + /** * regulator_register - register regulator * @regulator_desc: regulator to register @@ -3918,6 +3940,16 @@ regulator_register(const struct regulator_desc *regulator_desc, goto clean; } + if ((config->ena_gpio || config->ena_gpio_initialized) && + gpio_is_valid(config->ena_gpio)) { + ret = regulator_ena_gpio_request(rdev, config); + if (ret != 0) { + rdev_err(rdev, "Failed to request enable GPIO%d: %d\n", + config->ena_gpio, ret); + goto clean; + } + } + /* register with sysfs */ rdev->dev.class = ®ulator_class; rdev->dev.parent = dev; @@ -3926,21 +3958,11 @@ regulator_register(const struct regulator_desc *regulator_desc, ret = device_register(&rdev->dev); if (ret != 0) { put_device(&rdev->dev); - goto clean; + goto wash; } dev_set_drvdata(&rdev->dev, rdev); - if ((config->ena_gpio || config->ena_gpio_initialized) && - gpio_is_valid(config->ena_gpio)) { - ret = regulator_ena_gpio_request(rdev, config); - if (ret != 0) { - rdev_err(rdev, "Failed to request enable GPIO%d: %d\n", - config->ena_gpio, ret); - goto wash; - } - } - /* set regulator constraints */ if (init_data) constraints = &init_data->constraints; @@ -3969,8 +3991,11 @@ regulator_register(const struct regulator_desc *regulator_desc, } rdev_init_debugfs(rdev); -out: mutex_unlock(®ulator_list_mutex); + + /* try to resolve regulators supply since a new one was registered */ + class_for_each_device(®ulator_class, NULL, NULL, + regulator_register_resolve_supply); kfree(config); return rdev; @@ -3979,17 +4004,18 @@ unset_supplies: scrub: regulator_ena_gpio_free(rdev); - kfree(rdev->constraints); -wash: device_unregister(&rdev->dev); /* device core frees rdev */ - rdev = ERR_PTR(ret); goto out; +wash: + regulator_ena_gpio_free(rdev); clean: kfree(rdev); - rdev = ERR_PTR(ret); - goto out; +out: + mutex_unlock(®ulator_list_mutex); + kfree(config); + return ERR_PTR(ret); } EXPORT_SYMBOL_GPL(regulator_register); diff --git a/drivers/regulator/da9063-regulator.c b/drivers/regulator/da9063-regulator.c index ed9e7e96f..c6af343f5 100644 --- a/drivers/regulator/da9063-regulator.c +++ b/drivers/regulator/da9063-regulator.c @@ -900,4 +900,4 @@ module_exit(da9063_regulator_cleanup); MODULE_AUTHOR("Krystian Garbaciak "); MODULE_DESCRIPTION("DA9063 regulators driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS("paltform:" DA9063_DRVNAME_REGULATORS); +MODULE_ALIAS("platform:" DA9063_DRVNAME_REGULATORS); diff --git a/drivers/regulator/da9210-regulator.c b/drivers/regulator/da9210-regulator.c index 8b3cc9f0c..01c0e3709 100644 --- a/drivers/regulator/da9210-regulator.c +++ b/drivers/regulator/da9210-regulator.c @@ -132,6 +132,8 @@ static irqreturn_t da9210_irq_handler(int irq, void *data) if (error < 0) goto error_i2c; + mutex_lock(&chip->rdev->mutex); + if (val & DA9210_E_OVCURR) { regulator_notifier_call_chain(chip->rdev, REGULATOR_EVENT_OVER_CURRENT, @@ -155,6 +157,9 @@ static irqreturn_t da9210_irq_handler(int irq, void *data) NULL); handled |= DA9210_E_VMAX; } + + mutex_unlock(&chip->rdev->mutex); + if (handled) { /* Clear handled events */ error = regmap_write(chip->regmap, DA9210_REG_EVENT_B, handled); diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index 4940e8287..2cb5cc311 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -114,6 +114,22 @@ static int fan53555_set_suspend_voltage(struct regulator_dev *rdev, int uV) return 0; } +static int fan53555_set_suspend_enable(struct regulator_dev *rdev) +{ + struct fan53555_device_info *di = rdev_get_drvdata(rdev); + + return regmap_update_bits(di->regmap, di->sleep_reg, + VSEL_BUCK_EN, VSEL_BUCK_EN); +} + +static int fan53555_set_suspend_disable(struct regulator_dev *rdev) +{ + struct fan53555_device_info *di = rdev_get_drvdata(rdev); + + return regmap_update_bits(di->regmap, di->sleep_reg, + VSEL_BUCK_EN, 0); +} + static int fan53555_set_mode(struct regulator_dev *rdev, unsigned int mode) { struct fan53555_device_info *di = rdev_get_drvdata(rdev); @@ -192,6 +208,8 @@ static struct regulator_ops fan53555_regulator_ops = { .set_mode = fan53555_set_mode, .get_mode = fan53555_get_mode, .set_ramp_delay = fan53555_set_ramp, + .set_suspend_enable = fan53555_set_suspend_enable, + .set_suspend_disable = fan53555_set_suspend_disable, }; static int fan53555_voltages_setup_fairchild(struct fan53555_device_info *di) diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c index 7bba8b747..83e89e5d4 100644 --- a/drivers/regulator/gpio-regulator.c +++ b/drivers/regulator/gpio-regulator.c @@ -162,6 +162,8 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np, of_property_read_u32(np, "startup-delay-us", &config->startup_delay); config->enable_gpio = of_get_named_gpio(np, "enable-gpio", 0); + if (config->enable_gpio == -EPROBE_DEFER) + return ERR_PTR(-EPROBE_DEFER); /* Fetch GPIOs. - optional property*/ ret = of_gpio_count(np); @@ -283,8 +285,10 @@ static int gpio_regulator_probe(struct platform_device *pdev) drvdata->nr_gpios = config->nr_gpios; ret = gpio_request_array(drvdata->gpios, drvdata->nr_gpios); if (ret) { - dev_err(&pdev->dev, - "Could not obtain regulator setting GPIOs: %d\n", ret); + if (ret != -EPROBE_DEFER) + dev_err(&pdev->dev, + "Could not obtain regulator setting GPIOs: %d\n", + ret); goto err_memstate; } } diff --git a/drivers/regulator/helpers.c b/drivers/regulator/helpers.c index 3bbb32680..b1e32e748 100644 --- a/drivers/regulator/helpers.c +++ b/drivers/regulator/helpers.c @@ -465,3 +465,26 @@ int regulator_get_bypass_regmap(struct regulator_dev *rdev, bool *enable) return 0; } EXPORT_SYMBOL_GPL(regulator_get_bypass_regmap); + +/** + * regulator_set_active_discharge_regmap - Default set_active_discharge() + * using regmap + * + * @rdev: device to operate on. + * @enable: state to set, 0 to disable and 1 to enable. + */ +int regulator_set_active_discharge_regmap(struct regulator_dev *rdev, + bool enable) +{ + unsigned int val; + + if (enable) + val = rdev->desc->active_discharge_on; + else + val = rdev->desc->active_discharge_off; + + return regmap_update_bits(rdev->regmap, + rdev->desc->active_discharge_reg, + rdev->desc->active_discharge_mask, val); +} +EXPORT_SYMBOL_GPL(regulator_set_active_discharge_regmap); diff --git a/drivers/regulator/hi655x-regulator.c b/drivers/regulator/hi655x-regulator.c new file mode 100644 index 000000000..aca18466f --- /dev/null +++ b/drivers/regulator/hi655x-regulator.c @@ -0,0 +1,227 @@ +/* + * Device driver for regulators in Hi655x IC + * + * Copyright (c) 2016 Hisilicon. + * + * Authors: + * Chen Feng + * Fei Wang + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct hi655x_regulator { + unsigned int disable_reg; + unsigned int status_reg; + unsigned int ctrl_regs; + unsigned int ctrl_mask; + struct regulator_desc rdesc; +}; + +/* LDO7 & LDO10 */ +static const unsigned int ldo7_voltages[] = { + 1800000, 1850000, 2850000, 2900000, + 3000000, 3100000, 3200000, 3300000, +}; + +static const unsigned int ldo19_voltages[] = { + 1800000, 1850000, 1900000, 1750000, + 2800000, 2850000, 2900000, 3000000, +}; + +static const unsigned int ldo22_voltages[] = { + 900000, 1000000, 1050000, 1100000, + 1150000, 1175000, 1185000, 1200000, +}; + +enum hi655x_regulator_id { + HI655X_LDO0, + HI655X_LDO1, + HI655X_LDO2, + HI655X_LDO3, + HI655X_LDO4, + HI655X_LDO5, + HI655X_LDO6, + HI655X_LDO7, + HI655X_LDO8, + HI655X_LDO9, + HI655X_LDO10, + HI655X_LDO11, + HI655X_LDO12, + HI655X_LDO13, + HI655X_LDO14, + HI655X_LDO15, + HI655X_LDO16, + HI655X_LDO17, + HI655X_LDO18, + HI655X_LDO19, + HI655X_LDO20, + HI655X_LDO21, + HI655X_LDO22, +}; + +static int hi655x_is_enabled(struct regulator_dev *rdev) +{ + unsigned int value = 0; + + struct hi655x_regulator *regulator = rdev_get_drvdata(rdev); + + regmap_read(rdev->regmap, regulator->status_reg, &value); + return (value & BIT(regulator->ctrl_mask)); +} + +static int hi655x_disable(struct regulator_dev *rdev) +{ + int ret = 0; + + struct hi655x_regulator *regulator = rdev_get_drvdata(rdev); + + ret = regmap_write(rdev->regmap, regulator->disable_reg, + BIT(regulator->ctrl_mask)); + return ret; +} + +static struct regulator_ops hi655x_regulator_ops = { + .enable = regulator_enable_regmap, + .disable = hi655x_disable, + .is_enabled = hi655x_is_enabled, + .list_voltage = regulator_list_voltage_table, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, +}; + +static struct regulator_ops hi655x_ldo_linear_ops = { + .enable = regulator_enable_regmap, + .disable = hi655x_disable, + .is_enabled = hi655x_is_enabled, + .list_voltage = regulator_list_voltage_linear, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, +}; + +#define HI655X_LDO(_ID, vreg, vmask, ereg, dreg, \ + sreg, cmask, vtable) { \ + .rdesc = { \ + .name = #_ID, \ + .of_match = of_match_ptr(#_ID), \ + .ops = &hi655x_regulator_ops, \ + .regulators_node = of_match_ptr("regulators"), \ + .type = REGULATOR_VOLTAGE, \ + .id = HI655X_##_ID, \ + .owner = THIS_MODULE, \ + .n_voltages = ARRAY_SIZE(vtable), \ + .volt_table = vtable, \ + .vsel_reg = HI655X_BUS_ADDR(vreg), \ + .vsel_mask = vmask, \ + .enable_reg = HI655X_BUS_ADDR(ereg), \ + .enable_mask = BIT(cmask), \ + }, \ + .disable_reg = HI655X_BUS_ADDR(dreg), \ + .status_reg = HI655X_BUS_ADDR(sreg), \ + .ctrl_mask = cmask, \ +} + +#define HI655X_LDO_LINEAR(_ID, vreg, vmask, ereg, dreg, \ + sreg, cmask, minv, nvolt, vstep) { \ + .rdesc = { \ + .name = #_ID, \ + .of_match = of_match_ptr(#_ID), \ + .ops = &hi655x_ldo_linear_ops, \ + .regulators_node = of_match_ptr("regulators"), \ + .type = REGULATOR_VOLTAGE, \ + .id = HI655X_##_ID, \ + .owner = THIS_MODULE, \ + .min_uV = minv, \ + .n_voltages = nvolt, \ + .uV_step = vstep, \ + .vsel_reg = HI655X_BUS_ADDR(vreg), \ + .vsel_mask = vmask, \ + .enable_reg = HI655X_BUS_ADDR(ereg), \ + .enable_mask = BIT(cmask), \ + }, \ + .disable_reg = HI655X_BUS_ADDR(dreg), \ + .status_reg = HI655X_BUS_ADDR(sreg), \ + .ctrl_mask = cmask, \ +} + +static struct hi655x_regulator regulators[] = { + HI655X_LDO_LINEAR(LDO2, 0x72, 0x07, 0x29, 0x2a, 0x2b, 0x01, + 2500000, 8, 100000), + HI655X_LDO(LDO7, 0x78, 0x07, 0x29, 0x2a, 0x2b, 0x06, ldo7_voltages), + HI655X_LDO(LDO10, 0x78, 0x07, 0x29, 0x2a, 0x2b, 0x01, ldo7_voltages), + HI655X_LDO_LINEAR(LDO13, 0x7e, 0x07, 0x2c, 0x2d, 0x2e, 0x04, + 1600000, 8, 50000), + HI655X_LDO_LINEAR(LDO14, 0x7f, 0x07, 0x2c, 0x2d, 0x2e, 0x05, + 2500000, 8, 100000), + HI655X_LDO_LINEAR(LDO15, 0x80, 0x07, 0x2c, 0x2d, 0x2e, 0x06, + 1600000, 8, 50000), + HI655X_LDO_LINEAR(LDO17, 0x82, 0x07, 0x2f, 0x30, 0x31, 0x00, + 2500000, 8, 100000), + HI655X_LDO(LDO19, 0x84, 0x07, 0x2f, 0x30, 0x31, 0x02, ldo19_voltages), + HI655X_LDO_LINEAR(LDO21, 0x86, 0x07, 0x2f, 0x30, 0x31, 0x04, + 1650000, 8, 50000), + HI655X_LDO(LDO22, 0x87, 0x07, 0x2f, 0x30, 0x31, 0x05, ldo22_voltages), +}; + +static int hi655x_regulator_probe(struct platform_device *pdev) +{ + unsigned int i; + struct hi655x_regulator *regulator; + struct hi655x_pmic *pmic; + struct regulator_config config = { }; + struct regulator_dev *rdev; + + pmic = dev_get_drvdata(pdev->dev.parent); + if (!pmic) { + dev_err(&pdev->dev, "no pmic in the regulator parent node\n"); + return -ENODEV; + } + + regulator = devm_kzalloc(&pdev->dev, sizeof(*regulator), GFP_KERNEL); + if (!regulator) + return -ENOMEM; + + platform_set_drvdata(pdev, regulator); + + config.dev = pdev->dev.parent; + config.regmap = pmic->regmap; + config.driver_data = regulator; + for (i = 0; i < ARRAY_SIZE(regulators); i++) { + rdev = devm_regulator_register(&pdev->dev, + ®ulators[i].rdesc, + &config); + if (IS_ERR(rdev)) { + dev_err(&pdev->dev, "failed to register regulator %s\n", + regulator->rdesc.name); + return PTR_ERR(rdev); + } + } + return 0; +} + +static struct platform_driver hi655x_regulator_driver = { + .driver = { + .name = "hi655x-regulator", + }, + .probe = hi655x_regulator_probe, +}; +module_platform_driver(hi655x_regulator_driver); + +MODULE_AUTHOR("Chen Feng "); +MODULE_DESCRIPTION("Hisilicon Hi655x regulator driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c index 19d758486..38992112f 100644 --- a/drivers/regulator/lp872x.c +++ b/drivers/regulator/lp872x.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -738,10 +739,8 @@ static int lp872x_init_dvs(struct lp872x *lp) goto set_default_dvs_mode; gpio = dvs->gpio; - if (!gpio_is_valid(gpio)) { - dev_warn(lp->dev, "invalid gpio: %d\n", gpio); + if (!gpio_is_valid(gpio)) goto set_default_dvs_mode; - } pinstate = dvs->init_state; ret = devm_gpio_request_one(lp->dev, gpio, pinstate, "LP872X DVS"); @@ -759,6 +758,33 @@ set_default_dvs_mode: default_dvs_mode[lp->chipid]); } +static int lp872x_hw_enable(struct lp872x *lp) +{ + int ret, gpio; + + if (!lp->pdata) + return -EINVAL; + + gpio = lp->pdata->enable_gpio; + if (!gpio_is_valid(gpio)) + return 0; + + /* Always set enable GPIO high. */ + ret = devm_gpio_request_one(lp->dev, gpio, GPIOF_OUT_INIT_HIGH, "LP872X EN"); + if (ret) { + dev_err(lp->dev, "gpio request err: %d\n", ret); + return ret; + } + + /* Each chip has a different enable delay. */ + if (lp->chipid == LP8720) + usleep_range(LP8720_ENABLE_DELAY, 1.5 * LP8720_ENABLE_DELAY); + else + usleep_range(LP8725_ENABLE_DELAY, 1.5 * LP8725_ENABLE_DELAY); + + return 0; +} + static int lp872x_config(struct lp872x *lp) { struct lp872x_platform_data *pdata = lp->pdata; @@ -877,6 +903,8 @@ static struct lp872x_platform_data of_property_read_u8(np, "ti,dvs-state", &dvs_state); pdata->dvs->init_state = dvs_state ? DVS_HIGH : DVS_LOW; + pdata->enable_gpio = of_get_named_gpio(np, "enable-gpios", 0); + if (of_get_child_count(np) == 0) goto out; @@ -950,6 +978,10 @@ static int lp872x_probe(struct i2c_client *cl, const struct i2c_device_id *id) lp->chipid = id->driver_data; i2c_set_clientdata(cl, lp); + ret = lp872x_hw_enable(lp); + if (ret) + return ret; + ret = lp872x_config(lp); if (ret) return ret; diff --git a/drivers/regulator/ltc3589.c b/drivers/regulator/ltc3589.c index 972c386b2..47bef328f 100644 --- a/drivers/regulator/ltc3589.c +++ b/drivers/regulator/ltc3589.c @@ -520,12 +520,15 @@ static int ltc3589_probe(struct i2c_client *client, } } - ret = devm_request_threaded_irq(dev, client->irq, NULL, ltc3589_isr, - IRQF_TRIGGER_LOW | IRQF_ONESHOT, - client->name, ltc3589); - if (ret) { - dev_err(dev, "Failed to request IRQ: %d\n", ret); - return ret; + if (client->irq) { + ret = devm_request_threaded_irq(dev, client->irq, NULL, + ltc3589_isr, + IRQF_TRIGGER_LOW | IRQF_ONESHOT, + client->name, ltc3589); + if (ret) { + dev_err(dev, "Failed to request IRQ: %d\n", ret); + return ret; + } } return 0; diff --git a/drivers/regulator/max77620-regulator.c b/drivers/regulator/max77620-regulator.c new file mode 100644 index 000000000..73a3356a5 --- /dev/null +++ b/drivers/regulator/max77620-regulator.c @@ -0,0 +1,813 @@ +/* + * Maxim MAX77620 Regulator driver + * + * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. + * + * Author: Mallikarjun Kasoju + * Laxman Dewangan + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define max77620_rails(_name) "max77620-"#_name + +/* Power Mode */ +#define MAX77620_POWER_MODE_NORMAL 3 +#define MAX77620_POWER_MODE_LPM 2 +#define MAX77620_POWER_MODE_GLPM 1 +#define MAX77620_POWER_MODE_DISABLE 0 + +/* SD Slew Rate */ +#define MAX77620_SD_SR_13_75 0 +#define MAX77620_SD_SR_27_5 1 +#define MAX77620_SD_SR_55 2 +#define MAX77620_SD_SR_100 3 + +enum max77620_regulators { + MAX77620_REGULATOR_ID_SD0, + MAX77620_REGULATOR_ID_SD1, + MAX77620_REGULATOR_ID_SD2, + MAX77620_REGULATOR_ID_SD3, + MAX77620_REGULATOR_ID_SD4, + MAX77620_REGULATOR_ID_LDO0, + MAX77620_REGULATOR_ID_LDO1, + MAX77620_REGULATOR_ID_LDO2, + MAX77620_REGULATOR_ID_LDO3, + MAX77620_REGULATOR_ID_LDO4, + MAX77620_REGULATOR_ID_LDO5, + MAX77620_REGULATOR_ID_LDO6, + MAX77620_REGULATOR_ID_LDO7, + MAX77620_REGULATOR_ID_LDO8, + MAX77620_NUM_REGS, +}; + +/* Regulator types */ +enum max77620_regulator_type { + MAX77620_REGULATOR_TYPE_SD, + MAX77620_REGULATOR_TYPE_LDO_N, + MAX77620_REGULATOR_TYPE_LDO_P, +}; + +struct max77620_regulator_info { + u8 type; + u8 fps_addr; + u8 volt_addr; + u8 cfg_addr; + u8 power_mode_mask; + u8 power_mode_shift; + u8 remote_sense_addr; + u8 remote_sense_mask; + struct regulator_desc desc; +}; + +struct max77620_regulator_pdata { + struct regulator_init_data *reg_idata; + int active_fps_src; + int active_fps_pd_slot; + int active_fps_pu_slot; + int suspend_fps_src; + int suspend_fps_pd_slot; + int suspend_fps_pu_slot; + int current_mode; +}; + +struct max77620_regulator { + struct device *dev; + struct regmap *rmap; + struct max77620_regulator_info *rinfo[MAX77620_NUM_REGS]; + struct max77620_regulator_pdata reg_pdata[MAX77620_NUM_REGS]; + int enable_power_mode[MAX77620_NUM_REGS]; + int current_power_mode[MAX77620_NUM_REGS]; + int active_fps_src[MAX77620_NUM_REGS]; +}; + +#define fps_src_name(fps_src) \ + (fps_src == MAX77620_FPS_SRC_0 ? "FPS_SRC_0" : \ + fps_src == MAX77620_FPS_SRC_1 ? "FPS_SRC_1" : \ + fps_src == MAX77620_FPS_SRC_2 ? "FPS_SRC_2" : "FPS_SRC_NONE") + +static int max77620_regulator_get_fps_src(struct max77620_regulator *pmic, + int id) +{ + struct max77620_regulator_info *rinfo = pmic->rinfo[id]; + unsigned int val; + int ret; + + ret = regmap_read(pmic->rmap, rinfo->fps_addr, &val); + if (ret < 0) { + dev_err(pmic->dev, "Reg 0x%02x read failed %d\n", + rinfo->fps_addr, ret); + return ret; + } + + return (val & MAX77620_FPS_SRC_MASK) >> MAX77620_FPS_SRC_SHIFT; +} + +static int max77620_regulator_set_fps_src(struct max77620_regulator *pmic, + int fps_src, int id) +{ + struct max77620_regulator_info *rinfo = pmic->rinfo[id]; + unsigned int val; + int ret; + + switch (fps_src) { + case MAX77620_FPS_SRC_0: + case MAX77620_FPS_SRC_1: + case MAX77620_FPS_SRC_2: + case MAX77620_FPS_SRC_NONE: + break; + + case MAX77620_FPS_SRC_DEF: + ret = regmap_read(pmic->rmap, rinfo->fps_addr, &val); + if (ret < 0) { + dev_err(pmic->dev, "Reg 0x%02x read failed %d\n", + rinfo->fps_addr, ret); + return ret; + } + ret = (val & MAX77620_FPS_SRC_MASK) >> MAX77620_FPS_SRC_SHIFT; + pmic->active_fps_src[id] = ret; + return 0; + + default: + dev_err(pmic->dev, "Invalid FPS %d for regulator %d\n", + fps_src, id); + return -EINVAL; + } + + ret = regmap_update_bits(pmic->rmap, rinfo->fps_addr, + MAX77620_FPS_SRC_MASK, + fps_src << MAX77620_FPS_SRC_SHIFT); + if (ret < 0) { + dev_err(pmic->dev, "Reg 0x%02x update failed %d\n", + rinfo->fps_addr, ret); + return ret; + } + pmic->active_fps_src[id] = fps_src; + + return 0; +} + +static int max77620_regulator_set_fps_slots(struct max77620_regulator *pmic, + int id, bool is_suspend) +{ + struct max77620_regulator_pdata *rpdata = &pmic->reg_pdata[id]; + struct max77620_regulator_info *rinfo = pmic->rinfo[id]; + unsigned int val = 0; + unsigned int mask = 0; + int pu = rpdata->active_fps_pu_slot; + int pd = rpdata->active_fps_pd_slot; + int ret = 0; + + if (is_suspend) { + pu = rpdata->suspend_fps_pu_slot; + pd = rpdata->suspend_fps_pd_slot; + } + + /* FPS power up period setting */ + if (pu >= 0) { + val |= (pu << MAX77620_FPS_PU_PERIOD_SHIFT); + mask |= MAX77620_FPS_PU_PERIOD_MASK; + } + + /* FPS power down period setting */ + if (pd >= 0) { + val |= (pd << MAX77620_FPS_PD_PERIOD_SHIFT); + mask |= MAX77620_FPS_PD_PERIOD_MASK; + } + + if (mask) { + ret = regmap_update_bits(pmic->rmap, rinfo->fps_addr, + mask, val); + if (ret < 0) { + dev_err(pmic->dev, "Reg 0x%02x update failed: %d\n", + rinfo->fps_addr, ret); + return ret; + } + } + + return ret; +} + +static int max77620_regulator_set_power_mode(struct max77620_regulator *pmic, + int power_mode, int id) +{ + struct max77620_regulator_info *rinfo = pmic->rinfo[id]; + u8 mask = rinfo->power_mode_mask; + u8 shift = rinfo->power_mode_shift; + u8 addr; + int ret; + + switch (rinfo->type) { + case MAX77620_REGULATOR_TYPE_SD: + addr = rinfo->cfg_addr; + break; + default: + addr = rinfo->volt_addr; + break; + } + + ret = regmap_update_bits(pmic->rmap, addr, mask, power_mode << shift); + if (ret < 0) { + dev_err(pmic->dev, "Regulator %d mode set failed: %d\n", + id, ret); + return ret; + } + pmic->current_power_mode[id] = power_mode; + + return ret; +} + +static int max77620_regulator_get_power_mode(struct max77620_regulator *pmic, + int id) +{ + struct max77620_regulator_info *rinfo = pmic->rinfo[id]; + unsigned int val, addr; + u8 mask = rinfo->power_mode_mask; + u8 shift = rinfo->power_mode_shift; + int ret; + + switch (rinfo->type) { + case MAX77620_REGULATOR_TYPE_SD: + addr = rinfo->cfg_addr; + break; + default: + addr = rinfo->volt_addr; + break; + } + + ret = regmap_read(pmic->rmap, addr, &val); + if (ret < 0) { + dev_err(pmic->dev, "Regulator %d: Reg 0x%02x read failed: %d\n", + id, addr, ret); + return ret; + } + + return (val & mask) >> shift; +} + +static int max77620_read_slew_rate(struct max77620_regulator *pmic, int id) +{ + struct max77620_regulator_info *rinfo = pmic->rinfo[id]; + unsigned int rval; + int slew_rate; + int ret; + + ret = regmap_read(pmic->rmap, rinfo->cfg_addr, &rval); + if (ret < 0) { + dev_err(pmic->dev, "Register 0x%02x read failed: %d\n", + rinfo->cfg_addr, ret); + return ret; + } + + switch (rinfo->type) { + case MAX77620_REGULATOR_TYPE_SD: + slew_rate = (rval >> MAX77620_SD_SR_SHIFT) & 0x3; + switch (slew_rate) { + case 0: + slew_rate = 13750; + break; + case 1: + slew_rate = 27500; + break; + case 2: + slew_rate = 55000; + break; + case 3: + slew_rate = 100000; + break; + } + rinfo->desc.ramp_delay = slew_rate; + break; + default: + slew_rate = rval & 0x1; + switch (slew_rate) { + case 0: + slew_rate = 100000; + break; + case 1: + slew_rate = 5000; + break; + } + rinfo->desc.ramp_delay = slew_rate; + break; + } + + return 0; +} + +static int max77620_init_pmic(struct max77620_regulator *pmic, int id) +{ + struct max77620_regulator_pdata *rpdata = &pmic->reg_pdata[id]; + int ret; + + /* Update power mode */ + ret = max77620_regulator_get_power_mode(pmic, id); + if (ret < 0) + return ret; + + pmic->current_power_mode[id] = ret; + pmic->enable_power_mode[id] = MAX77620_POWER_MODE_NORMAL; + + if (rpdata->active_fps_src == MAX77620_FPS_SRC_DEF) { + ret = max77620_regulator_get_fps_src(pmic, id); + if (ret < 0) + return ret; + rpdata->active_fps_src = ret; + } + + /* If rails are externally control of FPS then enable it always. */ + if (rpdata->active_fps_src == MAX77620_FPS_SRC_NONE) { + ret = max77620_regulator_set_power_mode(pmic, + pmic->enable_power_mode[id], id); + if (ret < 0) + return ret; + } else { + if (pmic->current_power_mode[id] != + pmic->enable_power_mode[id]) { + ret = max77620_regulator_set_power_mode(pmic, + pmic->enable_power_mode[id], id); + if (ret < 0) + return ret; + } + } + + ret = max77620_regulator_set_fps_src(pmic, rpdata->active_fps_src, id); + if (ret < 0) + return ret; + + ret = max77620_regulator_set_fps_slots(pmic, id, false); + if (ret < 0) + return ret; + + return 0; +} + +static int max77620_regulator_enable(struct regulator_dev *rdev) +{ + struct max77620_regulator *pmic = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + + if (pmic->active_fps_src[id] != MAX77620_FPS_SRC_NONE) + return 0; + + return max77620_regulator_set_power_mode(pmic, + pmic->enable_power_mode[id], id); +} + +static int max77620_regulator_disable(struct regulator_dev *rdev) +{ + struct max77620_regulator *pmic = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + + if (pmic->active_fps_src[id] != MAX77620_FPS_SRC_NONE) + return 0; + + return max77620_regulator_set_power_mode(pmic, + MAX77620_POWER_MODE_DISABLE, id); +} + +static int max77620_regulator_is_enabled(struct regulator_dev *rdev) +{ + struct max77620_regulator *pmic = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + int ret = 1; + + if (pmic->active_fps_src[id] != MAX77620_FPS_SRC_NONE) + return 1; + + ret = max77620_regulator_get_power_mode(pmic, id); + if (ret < 0) + return ret; + + if (ret != MAX77620_POWER_MODE_DISABLE) + return 1; + + return 0; +} + +static int max77620_regulator_set_mode(struct regulator_dev *rdev, + unsigned int mode) +{ + struct max77620_regulator *pmic = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + struct max77620_regulator_info *rinfo = pmic->rinfo[id]; + struct max77620_regulator_pdata *rpdata = &pmic->reg_pdata[id]; + bool fpwm = false; + int power_mode; + int ret; + u8 val; + + switch (mode) { + case REGULATOR_MODE_FAST: + fpwm = true; + power_mode = MAX77620_POWER_MODE_NORMAL; + break; + + case REGULATOR_MODE_NORMAL: + power_mode = MAX77620_POWER_MODE_NORMAL; + break; + + case REGULATOR_MODE_IDLE: + power_mode = MAX77620_POWER_MODE_LPM; + break; + + default: + dev_err(pmic->dev, "Regulator %d mode %d is invalid\n", + id, mode); + return -EINVAL; + } + + if (rinfo->type != MAX77620_REGULATOR_TYPE_SD) + goto skip_fpwm; + + val = (fpwm) ? MAX77620_SD_FPWM_MASK : 0; + ret = regmap_update_bits(pmic->rmap, rinfo->cfg_addr, + MAX77620_SD_FPWM_MASK, val); + if (ret < 0) { + dev_err(pmic->dev, "Reg 0x%02x update failed: %d\n", + rinfo->cfg_addr, ret); + return ret; + } + rpdata->current_mode = mode; + +skip_fpwm: + ret = max77620_regulator_set_power_mode(pmic, power_mode, id); + if (ret < 0) + return ret; + + pmic->enable_power_mode[id] = power_mode; + + return 0; +} + +static unsigned int max77620_regulator_get_mode(struct regulator_dev *rdev) +{ + struct max77620_regulator *pmic = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + struct max77620_regulator_info *rinfo = pmic->rinfo[id]; + int fpwm = 0; + int ret; + int pm_mode, reg_mode; + unsigned int val; + + ret = max77620_regulator_get_power_mode(pmic, id); + if (ret < 0) + return 0; + + pm_mode = ret; + + if (rinfo->type == MAX77620_REGULATOR_TYPE_SD) { + ret = regmap_read(pmic->rmap, rinfo->cfg_addr, &val); + if (ret < 0) { + dev_err(pmic->dev, "Reg 0x%02x read failed: %d\n", + rinfo->cfg_addr, ret); + return ret; + } + fpwm = !!(val & MAX77620_SD_FPWM_MASK); + } + + switch (pm_mode) { + case MAX77620_POWER_MODE_NORMAL: + case MAX77620_POWER_MODE_DISABLE: + if (fpwm) + reg_mode = REGULATOR_MODE_FAST; + else + reg_mode = REGULATOR_MODE_NORMAL; + break; + case MAX77620_POWER_MODE_LPM: + case MAX77620_POWER_MODE_GLPM: + reg_mode = REGULATOR_MODE_IDLE; + break; + default: + return 0; + } + + return reg_mode; +} + +static int max77620_regulator_set_ramp_delay(struct regulator_dev *rdev, + int ramp_delay) +{ + struct max77620_regulator *pmic = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + struct max77620_regulator_info *rinfo = pmic->rinfo[id]; + int ret, val; + u8 mask; + + if (rinfo->type == MAX77620_REGULATOR_TYPE_SD) { + if (ramp_delay <= 13750) + val = 0; + else if (ramp_delay <= 27500) + val = 1; + else if (ramp_delay <= 55000) + val = 2; + else + val = 3; + val <<= MAX77620_SD_SR_SHIFT; + mask = MAX77620_SD_SR_MASK; + } else { + if (ramp_delay <= 5000) + val = 1; + else + val = 0; + mask = MAX77620_LDO_SLEW_RATE_MASK; + } + + ret = regmap_update_bits(pmic->rmap, rinfo->cfg_addr, mask, val); + if (ret < 0) + dev_err(pmic->dev, "Reg 0x%02x update failed: %d\n", + rinfo->cfg_addr, ret); + + return ret; +} + +static int max77620_of_parse_cb(struct device_node *np, + const struct regulator_desc *desc, + struct regulator_config *config) +{ + struct max77620_regulator *pmic = config->driver_data; + struct max77620_regulator_pdata *rpdata = &pmic->reg_pdata[desc->id]; + u32 pval; + int ret; + + ret = of_property_read_u32(np, "maxim,active-fps-source", &pval); + rpdata->active_fps_src = (!ret) ? pval : MAX77620_FPS_SRC_DEF; + + ret = of_property_read_u32(np, "maxim,active-fps-power-up-slot", &pval); + rpdata->active_fps_pu_slot = (!ret) ? pval : -1; + + ret = of_property_read_u32( + np, "maxim,active-fps-power-down-slot", &pval); + rpdata->active_fps_pd_slot = (!ret) ? pval : -1; + + ret = of_property_read_u32(np, "maxim,suspend-fps-source", &pval); + rpdata->suspend_fps_src = (!ret) ? pval : -1; + + ret = of_property_read_u32( + np, "maxim,suspend-fps-power-up-slot", &pval); + rpdata->suspend_fps_pu_slot = (!ret) ? pval : -1; + + ret = of_property_read_u32( + np, "maxim,suspend-fps-power-down-slot", &pval); + rpdata->suspend_fps_pd_slot = (!ret) ? pval : -1; + + return max77620_init_pmic(pmic, desc->id); +} + +static struct regulator_ops max77620_regulator_ops = { + .is_enabled = max77620_regulator_is_enabled, + .enable = max77620_regulator_enable, + .disable = max77620_regulator_disable, + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_mode = max77620_regulator_set_mode, + .get_mode = max77620_regulator_get_mode, + .set_ramp_delay = max77620_regulator_set_ramp_delay, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_active_discharge = regulator_set_active_discharge_regmap, +}; + +#define MAX77620_SD_CNF2_ROVS_EN_NONE 0 +#define RAIL_SD(_id, _name, _sname, _volt_mask, _min_uV, _max_uV, \ + _step_uV, _rs_add, _rs_mask) \ + [MAX77620_REGULATOR_ID_##_id] = { \ + .type = MAX77620_REGULATOR_TYPE_SD, \ + .volt_addr = MAX77620_REG_##_id, \ + .cfg_addr = MAX77620_REG_##_id##_CFG, \ + .fps_addr = MAX77620_REG_FPS_##_id, \ + .remote_sense_addr = _rs_add, \ + .remote_sense_mask = MAX77620_SD_CNF2_ROVS_EN_##_rs_mask, \ + .power_mode_mask = MAX77620_SD_POWER_MODE_MASK, \ + .power_mode_shift = MAX77620_SD_POWER_MODE_SHIFT, \ + .desc = { \ + .name = max77620_rails(_name), \ + .of_match = of_match_ptr(#_name), \ + .regulators_node = of_match_ptr("regulators"), \ + .of_parse_cb = max77620_of_parse_cb, \ + .supply_name = _sname, \ + .id = MAX77620_REGULATOR_ID_##_id, \ + .ops = &max77620_regulator_ops, \ + .n_voltages = ((_max_uV - _min_uV) / _step_uV) + 1, \ + .min_uV = _min_uV, \ + .uV_step = _step_uV, \ + .enable_time = 500, \ + .vsel_mask = MAX77620_##_volt_mask##_VOLT_MASK, \ + .vsel_reg = MAX77620_REG_##_id, \ + .active_discharge_off = 0, \ + .active_discharge_on = MAX77620_SD_CFG1_ADE_ENABLE, \ + .active_discharge_mask = MAX77620_SD_CFG1_ADE_MASK, \ + .active_discharge_reg = MAX77620_REG_##_id##_CFG, \ + .type = REGULATOR_VOLTAGE, \ + }, \ + } + +#define RAIL_LDO(_id, _name, _sname, _type, _min_uV, _max_uV, _step_uV) \ + [MAX77620_REGULATOR_ID_##_id] = { \ + .type = MAX77620_REGULATOR_TYPE_LDO_##_type, \ + .volt_addr = MAX77620_REG_##_id##_CFG, \ + .cfg_addr = MAX77620_REG_##_id##_CFG2, \ + .fps_addr = MAX77620_REG_FPS_##_id, \ + .remote_sense_addr = 0xFF, \ + .power_mode_mask = MAX77620_LDO_POWER_MODE_MASK, \ + .power_mode_shift = MAX77620_LDO_POWER_MODE_SHIFT, \ + .desc = { \ + .name = max77620_rails(_name), \ + .of_match = of_match_ptr(#_name), \ + .regulators_node = of_match_ptr("regulators"), \ + .of_parse_cb = max77620_of_parse_cb, \ + .supply_name = _sname, \ + .id = MAX77620_REGULATOR_ID_##_id, \ + .ops = &max77620_regulator_ops, \ + .n_voltages = ((_max_uV - _min_uV) / _step_uV) + 1, \ + .min_uV = _min_uV, \ + .uV_step = _step_uV, \ + .enable_time = 500, \ + .vsel_mask = MAX77620_LDO_VOLT_MASK, \ + .vsel_reg = MAX77620_REG_##_id##_CFG, \ + .active_discharge_off = 0, \ + .active_discharge_on = MAX77620_LDO_CFG2_ADE_ENABLE, \ + .active_discharge_mask = MAX77620_LDO_CFG2_ADE_MASK, \ + .active_discharge_reg = MAX77620_REG_##_id##_CFG2, \ + .type = REGULATOR_VOLTAGE, \ + }, \ + } + +static struct max77620_regulator_info max77620_regs_info[MAX77620_NUM_REGS] = { + RAIL_SD(SD0, sd0, "in-sd0", SD0, 600000, 1400000, 12500, 0x22, SD0), + RAIL_SD(SD1, sd1, "in-sd1", SD1, 600000, 1550000, 12500, 0x22, SD1), + RAIL_SD(SD2, sd2, "in-sd2", SDX, 600000, 3787500, 12500, 0xFF, NONE), + RAIL_SD(SD3, sd3, "in-sd3", SDX, 600000, 3787500, 12500, 0xFF, NONE), + RAIL_SD(SD4, sd4, "in-sd4", SDX, 600000, 3787500, 12500, 0xFF, NONE), + + RAIL_LDO(LDO0, ldo0, "in-ldo0-1", N, 800000, 2375000, 25000), + RAIL_LDO(LDO1, ldo1, "in-ldo0-1", N, 800000, 2375000, 25000), + RAIL_LDO(LDO2, ldo2, "in-ldo2", P, 800000, 3950000, 50000), + RAIL_LDO(LDO3, ldo3, "in-ldo3-5", P, 800000, 3950000, 50000), + RAIL_LDO(LDO4, ldo4, "in-ldo4-6", P, 800000, 1587500, 12500), + RAIL_LDO(LDO5, ldo5, "in-ldo3-5", P, 800000, 3950000, 50000), + RAIL_LDO(LDO6, ldo6, "in-ldo4-6", P, 800000, 3950000, 50000), + RAIL_LDO(LDO7, ldo7, "in-ldo7-8", N, 800000, 3950000, 50000), + RAIL_LDO(LDO8, ldo8, "in-ldo7-8", N, 800000, 3950000, 50000), +}; + +static struct max77620_regulator_info max20024_regs_info[MAX77620_NUM_REGS] = { + RAIL_SD(SD0, sd0, "in-sd0", SD0, 800000, 1587500, 12500, 0x22, SD0), + RAIL_SD(SD1, sd1, "in-sd1", SD1, 600000, 3387500, 12500, 0x22, SD1), + RAIL_SD(SD2, sd2, "in-sd2", SDX, 600000, 3787500, 12500, 0xFF, NONE), + RAIL_SD(SD3, sd3, "in-sd3", SDX, 600000, 3787500, 12500, 0xFF, NONE), + RAIL_SD(SD4, sd4, "in-sd4", SDX, 600000, 3787500, 12500, 0xFF, NONE), + + RAIL_LDO(LDO0, ldo0, "in-ldo0-1", N, 800000, 2375000, 25000), + RAIL_LDO(LDO1, ldo1, "in-ldo0-1", N, 800000, 2375000, 25000), + RAIL_LDO(LDO2, ldo2, "in-ldo2", P, 800000, 3950000, 50000), + RAIL_LDO(LDO3, ldo3, "in-ldo3-5", P, 800000, 3950000, 50000), + RAIL_LDO(LDO4, ldo4, "in-ldo4-6", P, 800000, 1587500, 12500), + RAIL_LDO(LDO5, ldo5, "in-ldo3-5", P, 800000, 3950000, 50000), + RAIL_LDO(LDO6, ldo6, "in-ldo4-6", P, 800000, 3950000, 50000), + RAIL_LDO(LDO7, ldo7, "in-ldo7-8", N, 800000, 3950000, 50000), + RAIL_LDO(LDO8, ldo8, "in-ldo7-8", N, 800000, 3950000, 50000), +}; + +static int max77620_regulator_probe(struct platform_device *pdev) +{ + struct max77620_chip *max77620_chip = dev_get_drvdata(pdev->dev.parent); + struct max77620_regulator_info *rinfo; + struct device *dev = &pdev->dev; + struct regulator_config config = { }; + struct max77620_regulator *pmic; + int ret = 0; + int id; + + pmic = devm_kzalloc(dev, sizeof(*pmic), GFP_KERNEL); + if (!pmic) + return -ENOMEM; + + platform_set_drvdata(pdev, pmic); + pmic->dev = dev; + pmic->rmap = max77620_chip->rmap; + if (!dev->of_node) + dev->of_node = pdev->dev.parent->of_node; + + switch (max77620_chip->chip_id) { + case MAX77620: + rinfo = max77620_regs_info; + break; + default: + rinfo = max20024_regs_info; + break; + } + + config.regmap = pmic->rmap; + config.dev = dev; + config.driver_data = pmic; + + for (id = 0; id < MAX77620_NUM_REGS; id++) { + struct regulator_dev *rdev; + struct regulator_desc *rdesc; + + if ((max77620_chip->chip_id == MAX77620) && + (id == MAX77620_REGULATOR_ID_SD4)) + continue; + + rdesc = &rinfo[id].desc; + pmic->rinfo[id] = &max77620_regs_info[id]; + pmic->enable_power_mode[id] = MAX77620_POWER_MODE_NORMAL; + + ret = max77620_read_slew_rate(pmic, id); + if (ret < 0) + return ret; + + rdev = devm_regulator_register(dev, rdesc, &config); + if (IS_ERR(rdev)) { + ret = PTR_ERR(rdev); + dev_err(dev, "Regulator registration %s failed: %d\n", + rdesc->name, ret); + return ret; + } + } + + return 0; +} + +#ifdef CONFIG_PM_SLEEP +static int max77620_regulator_suspend(struct device *dev) +{ + struct max77620_regulator *pmic = dev_get_drvdata(dev); + struct max77620_regulator_pdata *reg_pdata; + int id; + + for (id = 0; id < MAX77620_NUM_REGS; id++) { + reg_pdata = &pmic->reg_pdata[id]; + + max77620_regulator_set_fps_slots(pmic, id, true); + if (reg_pdata->suspend_fps_src < 0) + continue; + + max77620_regulator_set_fps_src(pmic, reg_pdata->suspend_fps_src, + id); + } + + return 0; +} + +static int max77620_regulator_resume(struct device *dev) +{ + struct max77620_regulator *pmic = dev_get_drvdata(dev); + struct max77620_regulator_pdata *reg_pdata; + int id; + + for (id = 0; id < MAX77620_NUM_REGS; id++) { + reg_pdata = &pmic->reg_pdata[id]; + + max77620_regulator_set_fps_slots(pmic, id, false); + if (reg_pdata->active_fps_src < 0) + continue; + max77620_regulator_set_fps_src(pmic, reg_pdata->active_fps_src, + id); + } + + return 0; +} +#endif + +static const struct dev_pm_ops max77620_regulator_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(max77620_regulator_suspend, + max77620_regulator_resume) +}; + +static const struct platform_device_id max77620_regulator_devtype[] = { + { .name = "max77620-pmic", }, + { .name = "max20024-pmic", }, + {}, +}; +MODULE_DEVICE_TABLE(platform, max77620_regulator_devtype); + +static struct platform_driver max77620_regulator_driver = { + .probe = max77620_regulator_probe, + .id_table = max77620_regulator_devtype, + .driver = { + .name = "max77620-pmic", + .pm = &max77620_regulator_pm_ops, + }, +}; + +module_platform_driver(max77620_regulator_driver); + +MODULE_DESCRIPTION("MAX77620/MAX20024 regulator driver"); +MODULE_AUTHOR("Mallikarjun Kasoju "); +MODULE_AUTHOR("Laxman Dewangan "); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/regulator/max77686-regulator.c b/drivers/regulator/max77686-regulator.c new file mode 100644 index 000000000..17ccf365a --- /dev/null +++ b/drivers/regulator/max77686-regulator.c @@ -0,0 +1,570 @@ +/* + * max77686.c - Regulator driver for the Maxim 77686 + * + * Copyright (C) 2012 Samsung Electronics + * Chiwoong Byun + * Jonghwa Lee + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * This driver is based on max8997.c + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define MAX77686_LDO_MINUV 800000 +#define MAX77686_LDO_UVSTEP 50000 +#define MAX77686_LDO_LOW_MINUV 800000 +#define MAX77686_LDO_LOW_UVSTEP 25000 +#define MAX77686_BUCK_MINUV 750000 +#define MAX77686_BUCK_UVSTEP 50000 +#define MAX77686_RAMP_DELAY 100000 /* uV/us */ +#define MAX77686_DVS_RAMP_DELAY 27500 /* uV/us */ +#define MAX77686_DVS_MINUV 600000 +#define MAX77686_DVS_UVSTEP 12500 + +/* + * Value for configuring buck[89] and LDO{20,21,22} as GPIO control. + * It is the same as 'off' for other regulators. + */ +#define MAX77686_GPIO_CONTROL 0x0 +/* + * Values used for configuring LDOs and bucks. + * Forcing low power mode: LDO1, 3-5, 9, 13, 17-26 + */ +#define MAX77686_LDO_LOWPOWER 0x1 +/* + * On/off controlled by PWRREQ: + * - LDO2, 6-8, 10-12, 14-16 + * - buck[1234] + */ +#define MAX77686_OFF_PWRREQ 0x1 +/* Low power mode controlled by PWRREQ: All LDOs */ +#define MAX77686_LDO_LOWPOWER_PWRREQ 0x2 +/* Forcing low power mode: buck[234] */ +#define MAX77686_BUCK_LOWPOWER 0x2 +#define MAX77686_NORMAL 0x3 + +#define MAX77686_OPMODE_SHIFT 6 +#define MAX77686_OPMODE_BUCK234_SHIFT 4 +#define MAX77686_OPMODE_MASK 0x3 + +#define MAX77686_VSEL_MASK 0x3F +#define MAX77686_DVS_VSEL_MASK 0xFF + +#define MAX77686_RAMP_RATE_MASK 0xC0 + +#define MAX77686_REGULATORS MAX77686_REG_MAX +#define MAX77686_LDOS 26 + +enum max77686_ramp_rate { + RAMP_RATE_13P75MV, + RAMP_RATE_27P5MV, + RAMP_RATE_55MV, + RAMP_RATE_NO_CTRL, /* 100mV/us */ +}; + +struct max77686_data { + DECLARE_BITMAP(gpio_enabled, MAX77686_REGULATORS); + + /* Array indexed by regulator id */ + unsigned int opmode[MAX77686_REGULATORS]; +}; + +static unsigned int max77686_get_opmode_shift(int id) +{ + switch (id) { + case MAX77686_BUCK1: + case MAX77686_BUCK5 ... MAX77686_BUCK9: + return 0; + case MAX77686_BUCK2 ... MAX77686_BUCK4: + return MAX77686_OPMODE_BUCK234_SHIFT; + default: + /* all LDOs */ + return MAX77686_OPMODE_SHIFT; + } +} + +/* + * When regulator is configured for GPIO control then it + * replaces "normal" mode. Any change from low power mode to normal + * should actually change to GPIO control. + * Map normal mode to proper value for such regulators. + */ +static unsigned int max77686_map_normal_mode(struct max77686_data *max77686, + int id) +{ + switch (id) { + case MAX77686_BUCK8: + case MAX77686_BUCK9: + case MAX77686_LDO20 ... MAX77686_LDO22: + if (test_bit(id, max77686->gpio_enabled)) + return MAX77686_GPIO_CONTROL; + } + + return MAX77686_NORMAL; +} + +/* Some BUCKs and LDOs supports Normal[ON/OFF] mode during suspend */ +static int max77686_set_suspend_disable(struct regulator_dev *rdev) +{ + unsigned int val, shift; + struct max77686_data *max77686 = rdev_get_drvdata(rdev); + int ret, id = rdev_get_id(rdev); + + shift = max77686_get_opmode_shift(id); + val = MAX77686_OFF_PWRREQ; + + ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, val << shift); + if (ret) + return ret; + + max77686->opmode[id] = val; + return 0; +} + +/* Some LDOs supports [LPM/Normal]ON mode during suspend state */ +static int max77686_set_suspend_mode(struct regulator_dev *rdev, + unsigned int mode) +{ + struct max77686_data *max77686 = rdev_get_drvdata(rdev); + unsigned int val; + int ret, id = rdev_get_id(rdev); + + /* BUCK[5-9] doesn't support this feature */ + if (id >= MAX77686_BUCK5) + return 0; + + switch (mode) { + case REGULATOR_MODE_IDLE: /* ON in LP Mode */ + val = MAX77686_LDO_LOWPOWER_PWRREQ; + break; + case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */ + val = max77686_map_normal_mode(max77686, id); + break; + default: + pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n", + rdev->desc->name, mode); + return -EINVAL; + } + + ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, + val << MAX77686_OPMODE_SHIFT); + if (ret) + return ret; + + max77686->opmode[id] = val; + return 0; +} + +/* Some LDOs supports LPM-ON/OFF/Normal-ON mode during suspend state */ +static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev, + unsigned int mode) +{ + unsigned int val; + struct max77686_data *max77686 = rdev_get_drvdata(rdev); + int ret, id = rdev_get_id(rdev); + + switch (mode) { + case REGULATOR_MODE_STANDBY: /* switch off */ + val = MAX77686_OFF_PWRREQ; + break; + case REGULATOR_MODE_IDLE: /* ON in LP Mode */ + val = MAX77686_LDO_LOWPOWER_PWRREQ; + break; + case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */ + val = max77686_map_normal_mode(max77686, id); + break; + default: + pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n", + rdev->desc->name, mode); + return -EINVAL; + } + + ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, + val << MAX77686_OPMODE_SHIFT); + if (ret) + return ret; + + max77686->opmode[id] = val; + return 0; +} + +static int max77686_enable(struct regulator_dev *rdev) +{ + struct max77686_data *max77686 = rdev_get_drvdata(rdev); + unsigned int shift; + int id = rdev_get_id(rdev); + + shift = max77686_get_opmode_shift(id); + + if (max77686->opmode[id] == MAX77686_OFF_PWRREQ) + max77686->opmode[id] = max77686_map_normal_mode(max77686, id); + + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, + max77686->opmode[id] << shift); +} + +static int max77686_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) +{ + unsigned int ramp_value = RAMP_RATE_NO_CTRL; + + switch (ramp_delay) { + case 1 ... 13750: + ramp_value = RAMP_RATE_13P75MV; + break; + case 13751 ... 27500: + ramp_value = RAMP_RATE_27P5MV; + break; + case 27501 ... 55000: + ramp_value = RAMP_RATE_55MV; + break; + case 55001 ... 100000: + break; + default: + pr_warn("%s: ramp_delay: %d not supported, setting 100000\n", + rdev->desc->name, ramp_delay); + } + + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + MAX77686_RAMP_RATE_MASK, ramp_value << 6); +} + +static int max77686_of_parse_cb(struct device_node *np, + const struct regulator_desc *desc, + struct regulator_config *config) +{ + struct max77686_data *max77686 = config->driver_data; + + switch (desc->id) { + case MAX77686_BUCK8: + case MAX77686_BUCK9: + case MAX77686_LDO20 ... MAX77686_LDO22: + config->ena_gpio = of_get_named_gpio(np, + "maxim,ena-gpios", 0); + config->ena_gpio_flags = GPIOF_OUT_INIT_HIGH; + config->ena_gpio_initialized = true; + break; + default: + return 0; + } + + if (gpio_is_valid(config->ena_gpio)) { + set_bit(desc->id, max77686->gpio_enabled); + + return regmap_update_bits(config->regmap, desc->enable_reg, + desc->enable_mask, + MAX77686_GPIO_CONTROL); + } + + return 0; +} + +static struct regulator_ops max77686_ops = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77686_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_suspend_mode = max77686_set_suspend_mode, +}; + +static struct regulator_ops max77686_ldo_ops = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77686_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_suspend_mode = max77686_ldo_set_suspend_mode, + .set_suspend_disable = max77686_set_suspend_disable, +}; + +static struct regulator_ops max77686_buck1_ops = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77686_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_suspend_disable = max77686_set_suspend_disable, +}; + +static struct regulator_ops max77686_buck_dvs_ops = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77686_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_ramp_delay = max77686_set_ramp_delay, + .set_suspend_disable = max77686_set_suspend_disable, +}; + +#define regulator_desc_ldo(num) { \ + .name = "LDO"#num, \ + .of_match = of_match_ptr("LDO"#num), \ + .regulators_node = of_match_ptr("voltage-regulators"), \ + .of_parse_cb = max77686_of_parse_cb, \ + .id = MAX77686_LDO##num, \ + .ops = &max77686_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_LDO_MINUV, \ + .uV_step = MAX77686_LDO_UVSTEP, \ + .ramp_delay = MAX77686_RAMP_DELAY, \ + .n_voltages = MAX77686_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .vsel_mask = MAX77686_VSEL_MASK, \ + .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .enable_mask = MAX77686_OPMODE_MASK \ + << MAX77686_OPMODE_SHIFT, \ +} +#define regulator_desc_lpm_ldo(num) { \ + .name = "LDO"#num, \ + .of_match = of_match_ptr("LDO"#num), \ + .regulators_node = of_match_ptr("voltage-regulators"), \ + .id = MAX77686_LDO##num, \ + .ops = &max77686_ldo_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_LDO_MINUV, \ + .uV_step = MAX77686_LDO_UVSTEP, \ + .ramp_delay = MAX77686_RAMP_DELAY, \ + .n_voltages = MAX77686_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .vsel_mask = MAX77686_VSEL_MASK, \ + .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .enable_mask = MAX77686_OPMODE_MASK \ + << MAX77686_OPMODE_SHIFT, \ +} +#define regulator_desc_ldo_low(num) { \ + .name = "LDO"#num, \ + .of_match = of_match_ptr("LDO"#num), \ + .regulators_node = of_match_ptr("voltage-regulators"), \ + .id = MAX77686_LDO##num, \ + .ops = &max77686_ldo_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_LDO_LOW_MINUV, \ + .uV_step = MAX77686_LDO_LOW_UVSTEP, \ + .ramp_delay = MAX77686_RAMP_DELAY, \ + .n_voltages = MAX77686_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .vsel_mask = MAX77686_VSEL_MASK, \ + .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .enable_mask = MAX77686_OPMODE_MASK \ + << MAX77686_OPMODE_SHIFT, \ +} +#define regulator_desc_ldo1_low(num) { \ + .name = "LDO"#num, \ + .of_match = of_match_ptr("LDO"#num), \ + .regulators_node = of_match_ptr("voltage-regulators"), \ + .id = MAX77686_LDO##num, \ + .ops = &max77686_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_LDO_LOW_MINUV, \ + .uV_step = MAX77686_LDO_LOW_UVSTEP, \ + .ramp_delay = MAX77686_RAMP_DELAY, \ + .n_voltages = MAX77686_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .vsel_mask = MAX77686_VSEL_MASK, \ + .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ + .enable_mask = MAX77686_OPMODE_MASK \ + << MAX77686_OPMODE_SHIFT, \ +} +#define regulator_desc_buck(num) { \ + .name = "BUCK"#num, \ + .of_match = of_match_ptr("BUCK"#num), \ + .regulators_node = of_match_ptr("voltage-regulators"), \ + .of_parse_cb = max77686_of_parse_cb, \ + .id = MAX77686_BUCK##num, \ + .ops = &max77686_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_BUCK_MINUV, \ + .uV_step = MAX77686_BUCK_UVSTEP, \ + .ramp_delay = MAX77686_RAMP_DELAY, \ + .n_voltages = MAX77686_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_BUCK5OUT + (num - 5) * 2, \ + .vsel_mask = MAX77686_VSEL_MASK, \ + .enable_reg = MAX77686_REG_BUCK5CTRL + (num - 5) * 2, \ + .enable_mask = MAX77686_OPMODE_MASK, \ +} +#define regulator_desc_buck1(num) { \ + .name = "BUCK"#num, \ + .of_match = of_match_ptr("BUCK"#num), \ + .regulators_node = of_match_ptr("voltage-regulators"), \ + .id = MAX77686_BUCK##num, \ + .ops = &max77686_buck1_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_BUCK_MINUV, \ + .uV_step = MAX77686_BUCK_UVSTEP, \ + .ramp_delay = MAX77686_RAMP_DELAY, \ + .n_voltages = MAX77686_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_BUCK1OUT, \ + .vsel_mask = MAX77686_VSEL_MASK, \ + .enable_reg = MAX77686_REG_BUCK1CTRL, \ + .enable_mask = MAX77686_OPMODE_MASK, \ +} +#define regulator_desc_buck_dvs(num) { \ + .name = "BUCK"#num, \ + .of_match = of_match_ptr("BUCK"#num), \ + .regulators_node = of_match_ptr("voltage-regulators"), \ + .id = MAX77686_BUCK##num, \ + .ops = &max77686_buck_dvs_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MAX77686_DVS_MINUV, \ + .uV_step = MAX77686_DVS_UVSTEP, \ + .ramp_delay = MAX77686_DVS_RAMP_DELAY, \ + .n_voltages = MAX77686_DVS_VSEL_MASK + 1, \ + .vsel_reg = MAX77686_REG_BUCK2DVS1 + (num - 2) * 10, \ + .vsel_mask = MAX77686_DVS_VSEL_MASK, \ + .enable_reg = MAX77686_REG_BUCK2CTRL1 + (num - 2) * 10, \ + .enable_mask = MAX77686_OPMODE_MASK \ + << MAX77686_OPMODE_BUCK234_SHIFT, \ +} + +static const struct regulator_desc regulators[] = { + regulator_desc_ldo1_low(1), + regulator_desc_ldo_low(2), + regulator_desc_ldo(3), + regulator_desc_ldo(4), + regulator_desc_ldo(5), + regulator_desc_ldo_low(6), + regulator_desc_ldo_low(7), + regulator_desc_ldo_low(8), + regulator_desc_ldo(9), + regulator_desc_lpm_ldo(10), + regulator_desc_lpm_ldo(11), + regulator_desc_lpm_ldo(12), + regulator_desc_ldo(13), + regulator_desc_lpm_ldo(14), + regulator_desc_ldo_low(15), + regulator_desc_lpm_ldo(16), + regulator_desc_ldo(17), + regulator_desc_ldo(18), + regulator_desc_ldo(19), + regulator_desc_ldo(20), + regulator_desc_ldo(21), + regulator_desc_ldo(22), + regulator_desc_ldo(23), + regulator_desc_ldo(24), + regulator_desc_ldo(25), + regulator_desc_ldo(26), + regulator_desc_buck1(1), + regulator_desc_buck_dvs(2), + regulator_desc_buck_dvs(3), + regulator_desc_buck_dvs(4), + regulator_desc_buck(5), + regulator_desc_buck(6), + regulator_desc_buck(7), + regulator_desc_buck(8), + regulator_desc_buck(9), +}; + +static int max77686_pmic_probe(struct platform_device *pdev) +{ + struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); + struct max77686_data *max77686; + int i; + struct regulator_config config = { }; + + dev_dbg(&pdev->dev, "%s\n", __func__); + + max77686 = devm_kzalloc(&pdev->dev, sizeof(struct max77686_data), + GFP_KERNEL); + if (!max77686) + return -ENOMEM; + + config.dev = iodev->dev; + config.regmap = iodev->regmap; + config.driver_data = max77686; + platform_set_drvdata(pdev, max77686); + + for (i = 0; i < MAX77686_REGULATORS; i++) { + struct regulator_dev *rdev; + int id = regulators[i].id; + + max77686->opmode[id] = MAX77686_NORMAL; + rdev = devm_regulator_register(&pdev->dev, + ®ulators[i], &config); + if (IS_ERR(rdev)) { + int ret = PTR_ERR(rdev); + dev_err(&pdev->dev, + "regulator init failed for %d: %d\n", i, ret); + return ret; + } + } + + return 0; +} + +static const struct platform_device_id max77686_pmic_id[] = { + {"max77686-pmic", 0}, + { }, +}; +MODULE_DEVICE_TABLE(platform, max77686_pmic_id); + +static struct platform_driver max77686_pmic_driver = { + .driver = { + .name = "max77686-pmic", + }, + .probe = max77686_pmic_probe, + .id_table = max77686_pmic_id, +}; + +static int __init max77686_pmic_init(void) +{ + return platform_driver_register(&max77686_pmic_driver); +} +subsys_initcall(max77686_pmic_init); + +static void __exit max77686_pmic_cleanup(void) +{ + platform_driver_unregister(&max77686_pmic_driver); +} +module_exit(max77686_pmic_cleanup); + +MODULE_DESCRIPTION("MAXIM 77686 Regulator Driver"); +MODULE_AUTHOR("Chiwoong Byun "); +MODULE_LICENSE("GPL"); diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c deleted file mode 100644 index 17ccf365a..000000000 --- a/drivers/regulator/max77686.c +++ /dev/null @@ -1,570 +0,0 @@ -/* - * max77686.c - Regulator driver for the Maxim 77686 - * - * Copyright (C) 2012 Samsung Electronics - * Chiwoong Byun - * Jonghwa Lee - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * This driver is based on max8997.c - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define MAX77686_LDO_MINUV 800000 -#define MAX77686_LDO_UVSTEP 50000 -#define MAX77686_LDO_LOW_MINUV 800000 -#define MAX77686_LDO_LOW_UVSTEP 25000 -#define MAX77686_BUCK_MINUV 750000 -#define MAX77686_BUCK_UVSTEP 50000 -#define MAX77686_RAMP_DELAY 100000 /* uV/us */ -#define MAX77686_DVS_RAMP_DELAY 27500 /* uV/us */ -#define MAX77686_DVS_MINUV 600000 -#define MAX77686_DVS_UVSTEP 12500 - -/* - * Value for configuring buck[89] and LDO{20,21,22} as GPIO control. - * It is the same as 'off' for other regulators. - */ -#define MAX77686_GPIO_CONTROL 0x0 -/* - * Values used for configuring LDOs and bucks. - * Forcing low power mode: LDO1, 3-5, 9, 13, 17-26 - */ -#define MAX77686_LDO_LOWPOWER 0x1 -/* - * On/off controlled by PWRREQ: - * - LDO2, 6-8, 10-12, 14-16 - * - buck[1234] - */ -#define MAX77686_OFF_PWRREQ 0x1 -/* Low power mode controlled by PWRREQ: All LDOs */ -#define MAX77686_LDO_LOWPOWER_PWRREQ 0x2 -/* Forcing low power mode: buck[234] */ -#define MAX77686_BUCK_LOWPOWER 0x2 -#define MAX77686_NORMAL 0x3 - -#define MAX77686_OPMODE_SHIFT 6 -#define MAX77686_OPMODE_BUCK234_SHIFT 4 -#define MAX77686_OPMODE_MASK 0x3 - -#define MAX77686_VSEL_MASK 0x3F -#define MAX77686_DVS_VSEL_MASK 0xFF - -#define MAX77686_RAMP_RATE_MASK 0xC0 - -#define MAX77686_REGULATORS MAX77686_REG_MAX -#define MAX77686_LDOS 26 - -enum max77686_ramp_rate { - RAMP_RATE_13P75MV, - RAMP_RATE_27P5MV, - RAMP_RATE_55MV, - RAMP_RATE_NO_CTRL, /* 100mV/us */ -}; - -struct max77686_data { - DECLARE_BITMAP(gpio_enabled, MAX77686_REGULATORS); - - /* Array indexed by regulator id */ - unsigned int opmode[MAX77686_REGULATORS]; -}; - -static unsigned int max77686_get_opmode_shift(int id) -{ - switch (id) { - case MAX77686_BUCK1: - case MAX77686_BUCK5 ... MAX77686_BUCK9: - return 0; - case MAX77686_BUCK2 ... MAX77686_BUCK4: - return MAX77686_OPMODE_BUCK234_SHIFT; - default: - /* all LDOs */ - return MAX77686_OPMODE_SHIFT; - } -} - -/* - * When regulator is configured for GPIO control then it - * replaces "normal" mode. Any change from low power mode to normal - * should actually change to GPIO control. - * Map normal mode to proper value for such regulators. - */ -static unsigned int max77686_map_normal_mode(struct max77686_data *max77686, - int id) -{ - switch (id) { - case MAX77686_BUCK8: - case MAX77686_BUCK9: - case MAX77686_LDO20 ... MAX77686_LDO22: - if (test_bit(id, max77686->gpio_enabled)) - return MAX77686_GPIO_CONTROL; - } - - return MAX77686_NORMAL; -} - -/* Some BUCKs and LDOs supports Normal[ON/OFF] mode during suspend */ -static int max77686_set_suspend_disable(struct regulator_dev *rdev) -{ - unsigned int val, shift; - struct max77686_data *max77686 = rdev_get_drvdata(rdev); - int ret, id = rdev_get_id(rdev); - - shift = max77686_get_opmode_shift(id); - val = MAX77686_OFF_PWRREQ; - - ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, val << shift); - if (ret) - return ret; - - max77686->opmode[id] = val; - return 0; -} - -/* Some LDOs supports [LPM/Normal]ON mode during suspend state */ -static int max77686_set_suspend_mode(struct regulator_dev *rdev, - unsigned int mode) -{ - struct max77686_data *max77686 = rdev_get_drvdata(rdev); - unsigned int val; - int ret, id = rdev_get_id(rdev); - - /* BUCK[5-9] doesn't support this feature */ - if (id >= MAX77686_BUCK5) - return 0; - - switch (mode) { - case REGULATOR_MODE_IDLE: /* ON in LP Mode */ - val = MAX77686_LDO_LOWPOWER_PWRREQ; - break; - case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */ - val = max77686_map_normal_mode(max77686, id); - break; - default: - pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n", - rdev->desc->name, mode); - return -EINVAL; - } - - ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, - val << MAX77686_OPMODE_SHIFT); - if (ret) - return ret; - - max77686->opmode[id] = val; - return 0; -} - -/* Some LDOs supports LPM-ON/OFF/Normal-ON mode during suspend state */ -static int max77686_ldo_set_suspend_mode(struct regulator_dev *rdev, - unsigned int mode) -{ - unsigned int val; - struct max77686_data *max77686 = rdev_get_drvdata(rdev); - int ret, id = rdev_get_id(rdev); - - switch (mode) { - case REGULATOR_MODE_STANDBY: /* switch off */ - val = MAX77686_OFF_PWRREQ; - break; - case REGULATOR_MODE_IDLE: /* ON in LP Mode */ - val = MAX77686_LDO_LOWPOWER_PWRREQ; - break; - case REGULATOR_MODE_NORMAL: /* ON in Normal Mode */ - val = max77686_map_normal_mode(max77686, id); - break; - default: - pr_warn("%s: regulator_suspend_mode : 0x%x not supported\n", - rdev->desc->name, mode); - return -EINVAL; - } - - ret = regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, - val << MAX77686_OPMODE_SHIFT); - if (ret) - return ret; - - max77686->opmode[id] = val; - return 0; -} - -static int max77686_enable(struct regulator_dev *rdev) -{ - struct max77686_data *max77686 = rdev_get_drvdata(rdev); - unsigned int shift; - int id = rdev_get_id(rdev); - - shift = max77686_get_opmode_shift(id); - - if (max77686->opmode[id] == MAX77686_OFF_PWRREQ) - max77686->opmode[id] = max77686_map_normal_mode(max77686, id); - - return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, - max77686->opmode[id] << shift); -} - -static int max77686_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) -{ - unsigned int ramp_value = RAMP_RATE_NO_CTRL; - - switch (ramp_delay) { - case 1 ... 13750: - ramp_value = RAMP_RATE_13P75MV; - break; - case 13751 ... 27500: - ramp_value = RAMP_RATE_27P5MV; - break; - case 27501 ... 55000: - ramp_value = RAMP_RATE_55MV; - break; - case 55001 ... 100000: - break; - default: - pr_warn("%s: ramp_delay: %d not supported, setting 100000\n", - rdev->desc->name, ramp_delay); - } - - return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - MAX77686_RAMP_RATE_MASK, ramp_value << 6); -} - -static int max77686_of_parse_cb(struct device_node *np, - const struct regulator_desc *desc, - struct regulator_config *config) -{ - struct max77686_data *max77686 = config->driver_data; - - switch (desc->id) { - case MAX77686_BUCK8: - case MAX77686_BUCK9: - case MAX77686_LDO20 ... MAX77686_LDO22: - config->ena_gpio = of_get_named_gpio(np, - "maxim,ena-gpios", 0); - config->ena_gpio_flags = GPIOF_OUT_INIT_HIGH; - config->ena_gpio_initialized = true; - break; - default: - return 0; - } - - if (gpio_is_valid(config->ena_gpio)) { - set_bit(desc->id, max77686->gpio_enabled); - - return regmap_update_bits(config->regmap, desc->enable_reg, - desc->enable_mask, - MAX77686_GPIO_CONTROL); - } - - return 0; -} - -static struct regulator_ops max77686_ops = { - .list_voltage = regulator_list_voltage_linear, - .map_voltage = regulator_map_voltage_linear, - .is_enabled = regulator_is_enabled_regmap, - .enable = max77686_enable, - .disable = regulator_disable_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .set_voltage_time_sel = regulator_set_voltage_time_sel, - .set_suspend_mode = max77686_set_suspend_mode, -}; - -static struct regulator_ops max77686_ldo_ops = { - .list_voltage = regulator_list_voltage_linear, - .map_voltage = regulator_map_voltage_linear, - .is_enabled = regulator_is_enabled_regmap, - .enable = max77686_enable, - .disable = regulator_disable_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .set_voltage_time_sel = regulator_set_voltage_time_sel, - .set_suspend_mode = max77686_ldo_set_suspend_mode, - .set_suspend_disable = max77686_set_suspend_disable, -}; - -static struct regulator_ops max77686_buck1_ops = { - .list_voltage = regulator_list_voltage_linear, - .map_voltage = regulator_map_voltage_linear, - .is_enabled = regulator_is_enabled_regmap, - .enable = max77686_enable, - .disable = regulator_disable_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .set_voltage_time_sel = regulator_set_voltage_time_sel, - .set_suspend_disable = max77686_set_suspend_disable, -}; - -static struct regulator_ops max77686_buck_dvs_ops = { - .list_voltage = regulator_list_voltage_linear, - .map_voltage = regulator_map_voltage_linear, - .is_enabled = regulator_is_enabled_regmap, - .enable = max77686_enable, - .disable = regulator_disable_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .set_voltage_time_sel = regulator_set_voltage_time_sel, - .set_ramp_delay = max77686_set_ramp_delay, - .set_suspend_disable = max77686_set_suspend_disable, -}; - -#define regulator_desc_ldo(num) { \ - .name = "LDO"#num, \ - .of_match = of_match_ptr("LDO"#num), \ - .regulators_node = of_match_ptr("voltage-regulators"), \ - .of_parse_cb = max77686_of_parse_cb, \ - .id = MAX77686_LDO##num, \ - .ops = &max77686_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MAX77686_LDO_MINUV, \ - .uV_step = MAX77686_LDO_UVSTEP, \ - .ramp_delay = MAX77686_RAMP_DELAY, \ - .n_voltages = MAX77686_VSEL_MASK + 1, \ - .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ - .vsel_mask = MAX77686_VSEL_MASK, \ - .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ - .enable_mask = MAX77686_OPMODE_MASK \ - << MAX77686_OPMODE_SHIFT, \ -} -#define regulator_desc_lpm_ldo(num) { \ - .name = "LDO"#num, \ - .of_match = of_match_ptr("LDO"#num), \ - .regulators_node = of_match_ptr("voltage-regulators"), \ - .id = MAX77686_LDO##num, \ - .ops = &max77686_ldo_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MAX77686_LDO_MINUV, \ - .uV_step = MAX77686_LDO_UVSTEP, \ - .ramp_delay = MAX77686_RAMP_DELAY, \ - .n_voltages = MAX77686_VSEL_MASK + 1, \ - .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ - .vsel_mask = MAX77686_VSEL_MASK, \ - .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ - .enable_mask = MAX77686_OPMODE_MASK \ - << MAX77686_OPMODE_SHIFT, \ -} -#define regulator_desc_ldo_low(num) { \ - .name = "LDO"#num, \ - .of_match = of_match_ptr("LDO"#num), \ - .regulators_node = of_match_ptr("voltage-regulators"), \ - .id = MAX77686_LDO##num, \ - .ops = &max77686_ldo_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MAX77686_LDO_LOW_MINUV, \ - .uV_step = MAX77686_LDO_LOW_UVSTEP, \ - .ramp_delay = MAX77686_RAMP_DELAY, \ - .n_voltages = MAX77686_VSEL_MASK + 1, \ - .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ - .vsel_mask = MAX77686_VSEL_MASK, \ - .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ - .enable_mask = MAX77686_OPMODE_MASK \ - << MAX77686_OPMODE_SHIFT, \ -} -#define regulator_desc_ldo1_low(num) { \ - .name = "LDO"#num, \ - .of_match = of_match_ptr("LDO"#num), \ - .regulators_node = of_match_ptr("voltage-regulators"), \ - .id = MAX77686_LDO##num, \ - .ops = &max77686_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MAX77686_LDO_LOW_MINUV, \ - .uV_step = MAX77686_LDO_LOW_UVSTEP, \ - .ramp_delay = MAX77686_RAMP_DELAY, \ - .n_voltages = MAX77686_VSEL_MASK + 1, \ - .vsel_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ - .vsel_mask = MAX77686_VSEL_MASK, \ - .enable_reg = MAX77686_REG_LDO1CTRL1 + num - 1, \ - .enable_mask = MAX77686_OPMODE_MASK \ - << MAX77686_OPMODE_SHIFT, \ -} -#define regulator_desc_buck(num) { \ - .name = "BUCK"#num, \ - .of_match = of_match_ptr("BUCK"#num), \ - .regulators_node = of_match_ptr("voltage-regulators"), \ - .of_parse_cb = max77686_of_parse_cb, \ - .id = MAX77686_BUCK##num, \ - .ops = &max77686_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MAX77686_BUCK_MINUV, \ - .uV_step = MAX77686_BUCK_UVSTEP, \ - .ramp_delay = MAX77686_RAMP_DELAY, \ - .n_voltages = MAX77686_VSEL_MASK + 1, \ - .vsel_reg = MAX77686_REG_BUCK5OUT + (num - 5) * 2, \ - .vsel_mask = MAX77686_VSEL_MASK, \ - .enable_reg = MAX77686_REG_BUCK5CTRL + (num - 5) * 2, \ - .enable_mask = MAX77686_OPMODE_MASK, \ -} -#define regulator_desc_buck1(num) { \ - .name = "BUCK"#num, \ - .of_match = of_match_ptr("BUCK"#num), \ - .regulators_node = of_match_ptr("voltage-regulators"), \ - .id = MAX77686_BUCK##num, \ - .ops = &max77686_buck1_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MAX77686_BUCK_MINUV, \ - .uV_step = MAX77686_BUCK_UVSTEP, \ - .ramp_delay = MAX77686_RAMP_DELAY, \ - .n_voltages = MAX77686_VSEL_MASK + 1, \ - .vsel_reg = MAX77686_REG_BUCK1OUT, \ - .vsel_mask = MAX77686_VSEL_MASK, \ - .enable_reg = MAX77686_REG_BUCK1CTRL, \ - .enable_mask = MAX77686_OPMODE_MASK, \ -} -#define regulator_desc_buck_dvs(num) { \ - .name = "BUCK"#num, \ - .of_match = of_match_ptr("BUCK"#num), \ - .regulators_node = of_match_ptr("voltage-regulators"), \ - .id = MAX77686_BUCK##num, \ - .ops = &max77686_buck_dvs_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = MAX77686_DVS_MINUV, \ - .uV_step = MAX77686_DVS_UVSTEP, \ - .ramp_delay = MAX77686_DVS_RAMP_DELAY, \ - .n_voltages = MAX77686_DVS_VSEL_MASK + 1, \ - .vsel_reg = MAX77686_REG_BUCK2DVS1 + (num - 2) * 10, \ - .vsel_mask = MAX77686_DVS_VSEL_MASK, \ - .enable_reg = MAX77686_REG_BUCK2CTRL1 + (num - 2) * 10, \ - .enable_mask = MAX77686_OPMODE_MASK \ - << MAX77686_OPMODE_BUCK234_SHIFT, \ -} - -static const struct regulator_desc regulators[] = { - regulator_desc_ldo1_low(1), - regulator_desc_ldo_low(2), - regulator_desc_ldo(3), - regulator_desc_ldo(4), - regulator_desc_ldo(5), - regulator_desc_ldo_low(6), - regulator_desc_ldo_low(7), - regulator_desc_ldo_low(8), - regulator_desc_ldo(9), - regulator_desc_lpm_ldo(10), - regulator_desc_lpm_ldo(11), - regulator_desc_lpm_ldo(12), - regulator_desc_ldo(13), - regulator_desc_lpm_ldo(14), - regulator_desc_ldo_low(15), - regulator_desc_lpm_ldo(16), - regulator_desc_ldo(17), - regulator_desc_ldo(18), - regulator_desc_ldo(19), - regulator_desc_ldo(20), - regulator_desc_ldo(21), - regulator_desc_ldo(22), - regulator_desc_ldo(23), - regulator_desc_ldo(24), - regulator_desc_ldo(25), - regulator_desc_ldo(26), - regulator_desc_buck1(1), - regulator_desc_buck_dvs(2), - regulator_desc_buck_dvs(3), - regulator_desc_buck_dvs(4), - regulator_desc_buck(5), - regulator_desc_buck(6), - regulator_desc_buck(7), - regulator_desc_buck(8), - regulator_desc_buck(9), -}; - -static int max77686_pmic_probe(struct platform_device *pdev) -{ - struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); - struct max77686_data *max77686; - int i; - struct regulator_config config = { }; - - dev_dbg(&pdev->dev, "%s\n", __func__); - - max77686 = devm_kzalloc(&pdev->dev, sizeof(struct max77686_data), - GFP_KERNEL); - if (!max77686) - return -ENOMEM; - - config.dev = iodev->dev; - config.regmap = iodev->regmap; - config.driver_data = max77686; - platform_set_drvdata(pdev, max77686); - - for (i = 0; i < MAX77686_REGULATORS; i++) { - struct regulator_dev *rdev; - int id = regulators[i].id; - - max77686->opmode[id] = MAX77686_NORMAL; - rdev = devm_regulator_register(&pdev->dev, - ®ulators[i], &config); - if (IS_ERR(rdev)) { - int ret = PTR_ERR(rdev); - dev_err(&pdev->dev, - "regulator init failed for %d: %d\n", i, ret); - return ret; - } - } - - return 0; -} - -static const struct platform_device_id max77686_pmic_id[] = { - {"max77686-pmic", 0}, - { }, -}; -MODULE_DEVICE_TABLE(platform, max77686_pmic_id); - -static struct platform_driver max77686_pmic_driver = { - .driver = { - .name = "max77686-pmic", - }, - .probe = max77686_pmic_probe, - .id_table = max77686_pmic_id, -}; - -static int __init max77686_pmic_init(void) -{ - return platform_driver_register(&max77686_pmic_driver); -} -subsys_initcall(max77686_pmic_init); - -static void __exit max77686_pmic_cleanup(void) -{ - platform_driver_unregister(&max77686_pmic_driver); -} -module_exit(max77686_pmic_cleanup); - -MODULE_DESCRIPTION("MAXIM 77686 Regulator Driver"); -MODULE_AUTHOR("Chiwoong Byun "); -MODULE_LICENSE("GPL"); diff --git a/drivers/regulator/max77802-regulator.c b/drivers/regulator/max77802-regulator.c new file mode 100644 index 000000000..c07ee13bd --- /dev/null +++ b/drivers/regulator/max77802-regulator.c @@ -0,0 +1,610 @@ +/* + * max77802.c - Regulator driver for the Maxim 77802 + * + * Copyright (C) 2013-2014 Google, Inc + * Simon Glass + * + * Copyright (C) 2012 Samsung Electronics + * Chiwoong Byun + * Jonghwa Lee + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * This driver is based on max8997.c + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Default ramp delay in case it is not manually set */ +#define MAX77802_RAMP_DELAY 100000 /* uV/us */ + +#define MAX77802_OPMODE_SHIFT_LDO 6 +#define MAX77802_OPMODE_BUCK234_SHIFT 4 +#define MAX77802_OPMODE_MASK 0x3 + +#define MAX77802_VSEL_MASK 0x3F +#define MAX77802_DVS_VSEL_MASK 0xFF + +#define MAX77802_RAMP_RATE_MASK_2BIT 0xC0 +#define MAX77802_RAMP_RATE_SHIFT_2BIT 6 +#define MAX77802_RAMP_RATE_MASK_4BIT 0xF0 +#define MAX77802_RAMP_RATE_SHIFT_4BIT 4 + +#define MAX77802_STATUS_OFF 0x0 +#define MAX77802_OFF_PWRREQ 0x1 +#define MAX77802_LP_PWRREQ 0x2 + +/* MAX77802 has two register formats: 2-bit and 4-bit */ +static const unsigned int ramp_table_77802_2bit[] = { + 12500, + 25000, + 50000, + 100000, +}; + +static unsigned int ramp_table_77802_4bit[] = { + 1000, 2000, 3030, 4000, + 5000, 5880, 7140, 8330, + 9090, 10000, 11110, 12500, + 16670, 25000, 50000, 100000, +}; + +struct max77802_regulator_prv { + /* Array indexed by regulator id */ + unsigned int opmode[MAX77802_REG_MAX]; +}; + +static inline unsigned int max77802_map_mode(unsigned int mode) +{ + return mode == MAX77802_OPMODE_NORMAL ? + REGULATOR_MODE_NORMAL : REGULATOR_MODE_STANDBY; +} + +static int max77802_get_opmode_shift(int id) +{ + if (id == MAX77802_BUCK1 || (id >= MAX77802_BUCK5 && + id <= MAX77802_BUCK10)) + return 0; + + if (id >= MAX77802_BUCK2 && id <= MAX77802_BUCK4) + return MAX77802_OPMODE_BUCK234_SHIFT; + + if (id >= MAX77802_LDO1 && id <= MAX77802_LDO35) + return MAX77802_OPMODE_SHIFT_LDO; + + return -EINVAL; +} + +/** + * max77802_set_suspend_disable - Disable the regulator during system suspend + * @rdev: regulator to mark as disabled + * + * All regulators expect LDO 1, 3, 20 and 21 support OFF by PWRREQ. + * Configure the regulator so the PMIC will turn it OFF during system suspend. + */ +static int max77802_set_suspend_disable(struct regulator_dev *rdev) +{ + unsigned int val = MAX77802_OFF_PWRREQ; + struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + int shift = max77802_get_opmode_shift(id); + + max77802->opmode[id] = val; + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, val << shift); +} + +/* + * Some LDOs support Low Power Mode while the system is running. + * + * LDOs 1, 3, 20, 21. + */ +static int max77802_set_mode(struct regulator_dev *rdev, unsigned int mode) +{ + struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + unsigned int val; + int shift = max77802_get_opmode_shift(id); + + switch (mode) { + case REGULATOR_MODE_STANDBY: + val = MAX77802_OPMODE_LP; /* ON in Low Power Mode */ + break; + case REGULATOR_MODE_NORMAL: + val = MAX77802_OPMODE_NORMAL; /* ON in Normal Mode */ + break; + default: + dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n", + rdev->desc->name, mode); + return -EINVAL; + } + + max77802->opmode[id] = val; + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, val << shift); +} + +static unsigned max77802_get_mode(struct regulator_dev *rdev) +{ + struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + + return max77802_map_mode(max77802->opmode[id]); +} + +/** + * max77802_set_suspend_mode - set regulator opmode when the system is suspended + * @rdev: regulator to change mode + * @mode: operating mode to be set + * + * Will set the operating mode for the regulators during system suspend. + * This function is valid for the three different enable control logics: + * + * Enable Control Logic1 by PWRREQ (BUCK 2-4 and LDOs 2, 4-19, 22-35) + * Enable Control Logic2 by PWRREQ (LDOs 1, 20, 21) + * Enable Control Logic3 by PWRREQ (LDO 3) + * + * If setting the regulator mode fails, the function only warns but does + * not return an error code to avoid the regulator core to stop setting + * the operating mode for the remaining regulators. + */ +static int max77802_set_suspend_mode(struct regulator_dev *rdev, + unsigned int mode) +{ + struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + unsigned int val; + int shift = max77802_get_opmode_shift(id); + + /* + * If the regulator has been disabled for suspend + * then is invalid to try setting a suspend mode. + */ + if (max77802->opmode[id] == MAX77802_OFF_PWRREQ) { + dev_warn(&rdev->dev, "%s: is disabled, mode: 0x%x not set\n", + rdev->desc->name, mode); + return 0; + } + + switch (mode) { + case REGULATOR_MODE_STANDBY: + /* + * If the regulator opmode is normal then enable + * ON in Low Power Mode by PWRREQ. If the mode is + * already Low Power then no action is required. + */ + if (max77802->opmode[id] == MAX77802_OPMODE_NORMAL) + val = MAX77802_LP_PWRREQ; + else + return 0; + break; + case REGULATOR_MODE_NORMAL: + /* + * If the regulator operating mode is Low Power then + * normal is not a valid opmode in suspend. If the + * mode is already normal then no action is required. + */ + if (max77802->opmode[id] == MAX77802_OPMODE_LP) + dev_warn(&rdev->dev, "%s: in Low Power: 0x%x invalid\n", + rdev->desc->name, mode); + return 0; + default: + dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n", + rdev->desc->name, mode); + return -EINVAL; + } + + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, val << shift); +} + +static int max77802_enable(struct regulator_dev *rdev) +{ + struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); + int id = rdev_get_id(rdev); + int shift = max77802_get_opmode_shift(id); + + if (max77802->opmode[id] == MAX77802_OFF_PWRREQ) + max77802->opmode[id] = MAX77802_OPMODE_NORMAL; + + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + rdev->desc->enable_mask, + max77802->opmode[id] << shift); +} + +static int max77802_find_ramp_value(struct regulator_dev *rdev, + const unsigned int limits[], int size, + unsigned int ramp_delay) +{ + int i; + + for (i = 0; i < size; i++) { + if (ramp_delay <= limits[i]) + return i; + } + + /* Use maximum value for no ramp control */ + dev_warn(&rdev->dev, "%s: ramp_delay: %d not supported, setting 100000\n", + rdev->desc->name, ramp_delay); + return size - 1; +} + +/* Used for BUCKs 2-4 */ +static int max77802_set_ramp_delay_2bit(struct regulator_dev *rdev, + int ramp_delay) +{ + int id = rdev_get_id(rdev); + unsigned int ramp_value; + + if (id > MAX77802_BUCK4) { + dev_warn(&rdev->dev, + "%s: regulator: ramp delay not supported\n", + rdev->desc->name); + return -EINVAL; + } + ramp_value = max77802_find_ramp_value(rdev, ramp_table_77802_2bit, + ARRAY_SIZE(ramp_table_77802_2bit), ramp_delay); + + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + MAX77802_RAMP_RATE_MASK_2BIT, + ramp_value << MAX77802_RAMP_RATE_SHIFT_2BIT); +} + +/* For BUCK1, 6 */ +static int max77802_set_ramp_delay_4bit(struct regulator_dev *rdev, + int ramp_delay) +{ + unsigned int ramp_value; + + ramp_value = max77802_find_ramp_value(rdev, ramp_table_77802_4bit, + ARRAY_SIZE(ramp_table_77802_4bit), ramp_delay); + + return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, + MAX77802_RAMP_RATE_MASK_4BIT, + ramp_value << MAX77802_RAMP_RATE_SHIFT_4BIT); +} + +/* + * LDOs 2, 4-19, 22-35 + */ +static struct regulator_ops max77802_ldo_ops_logic1 = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77802_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_suspend_disable = max77802_set_suspend_disable, + .set_suspend_mode = max77802_set_suspend_mode, +}; + +/* + * LDOs 1, 20, 21, 3 + */ +static struct regulator_ops max77802_ldo_ops_logic2 = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77802_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_mode = max77802_set_mode, + .get_mode = max77802_get_mode, + .set_suspend_mode = max77802_set_suspend_mode, +}; + +/* BUCKS 1, 6 */ +static struct regulator_ops max77802_buck_16_dvs_ops = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77802_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_ramp_delay = max77802_set_ramp_delay_4bit, + .set_suspend_disable = max77802_set_suspend_disable, +}; + +/* BUCKs 2-4 */ +static struct regulator_ops max77802_buck_234_ops = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77802_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_ramp_delay = max77802_set_ramp_delay_2bit, + .set_suspend_disable = max77802_set_suspend_disable, + .set_suspend_mode = max77802_set_suspend_mode, +}; + +/* BUCKs 5, 7-10 */ +static struct regulator_ops max77802_buck_dvs_ops = { + .list_voltage = regulator_list_voltage_linear, + .map_voltage = regulator_map_voltage_linear, + .is_enabled = regulator_is_enabled_regmap, + .enable = max77802_enable, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .set_voltage_time_sel = regulator_set_voltage_time_sel, + .set_ramp_delay = max77802_set_ramp_delay_2bit, + .set_suspend_disable = max77802_set_suspend_disable, +}; + +/* LDOs 3-7, 9-14, 18-26, 28, 29, 32-34 */ +#define regulator_77802_desc_p_ldo(num, supply, log) { \ + .name = "LDO"#num, \ + .of_match = of_match_ptr("LDO"#num), \ + .regulators_node = of_match_ptr("regulators"), \ + .id = MAX77802_LDO##num, \ + .supply_name = "inl"#supply, \ + .ops = &max77802_ldo_ops_logic##log, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = 800000, \ + .uV_step = 50000, \ + .ramp_delay = MAX77802_RAMP_DELAY, \ + .n_voltages = 1 << 6, \ + .vsel_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \ + .vsel_mask = MAX77802_VSEL_MASK, \ + .enable_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \ + .enable_mask = MAX77802_OPMODE_MASK << MAX77802_OPMODE_SHIFT_LDO, \ + .of_map_mode = max77802_map_mode, \ +} + +/* LDOs 1, 2, 8, 15, 17, 27, 30, 35 */ +#define regulator_77802_desc_n_ldo(num, supply, log) { \ + .name = "LDO"#num, \ + .of_match = of_match_ptr("LDO"#num), \ + .regulators_node = of_match_ptr("regulators"), \ + .id = MAX77802_LDO##num, \ + .supply_name = "inl"#supply, \ + .ops = &max77802_ldo_ops_logic##log, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = 800000, \ + .uV_step = 25000, \ + .ramp_delay = MAX77802_RAMP_DELAY, \ + .n_voltages = 1 << 6, \ + .vsel_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \ + .vsel_mask = MAX77802_VSEL_MASK, \ + .enable_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \ + .enable_mask = MAX77802_OPMODE_MASK << MAX77802_OPMODE_SHIFT_LDO, \ + .of_map_mode = max77802_map_mode, \ +} + +/* BUCKs 1, 6 */ +#define regulator_77802_desc_16_buck(num) { \ + .name = "BUCK"#num, \ + .of_match = of_match_ptr("BUCK"#num), \ + .regulators_node = of_match_ptr("regulators"), \ + .id = MAX77802_BUCK##num, \ + .supply_name = "inb"#num, \ + .ops = &max77802_buck_16_dvs_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = 612500, \ + .uV_step = 6250, \ + .ramp_delay = MAX77802_RAMP_DELAY, \ + .n_voltages = 1 << 8, \ + .vsel_reg = MAX77802_REG_BUCK ## num ## DVS1, \ + .vsel_mask = MAX77802_DVS_VSEL_MASK, \ + .enable_reg = MAX77802_REG_BUCK ## num ## CTRL, \ + .enable_mask = MAX77802_OPMODE_MASK, \ + .of_map_mode = max77802_map_mode, \ +} + +/* BUCKS 2-4 */ +#define regulator_77802_desc_234_buck(num) { \ + .name = "BUCK"#num, \ + .of_match = of_match_ptr("BUCK"#num), \ + .regulators_node = of_match_ptr("regulators"), \ + .id = MAX77802_BUCK##num, \ + .supply_name = "inb"#num, \ + .ops = &max77802_buck_234_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = 600000, \ + .uV_step = 6250, \ + .ramp_delay = MAX77802_RAMP_DELAY, \ + .n_voltages = 0x91, \ + .vsel_reg = MAX77802_REG_BUCK ## num ## DVS1, \ + .vsel_mask = MAX77802_DVS_VSEL_MASK, \ + .enable_reg = MAX77802_REG_BUCK ## num ## CTRL1, \ + .enable_mask = MAX77802_OPMODE_MASK << \ + MAX77802_OPMODE_BUCK234_SHIFT, \ + .of_map_mode = max77802_map_mode, \ +} + +/* BUCK 5 */ +#define regulator_77802_desc_buck5(num) { \ + .name = "BUCK"#num, \ + .of_match = of_match_ptr("BUCK"#num), \ + .regulators_node = of_match_ptr("regulators"), \ + .id = MAX77802_BUCK##num, \ + .supply_name = "inb"#num, \ + .ops = &max77802_buck_dvs_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = 750000, \ + .uV_step = 50000, \ + .ramp_delay = MAX77802_RAMP_DELAY, \ + .n_voltages = 1 << 6, \ + .vsel_reg = MAX77802_REG_BUCK5OUT, \ + .vsel_mask = MAX77802_VSEL_MASK, \ + .enable_reg = MAX77802_REG_BUCK5CTRL, \ + .enable_mask = MAX77802_OPMODE_MASK, \ + .of_map_mode = max77802_map_mode, \ +} + +/* BUCKs 7-10 */ +#define regulator_77802_desc_buck7_10(num) { \ + .name = "BUCK"#num, \ + .of_match = of_match_ptr("BUCK"#num), \ + .regulators_node = of_match_ptr("regulators"), \ + .id = MAX77802_BUCK##num, \ + .supply_name = "inb"#num, \ + .ops = &max77802_buck_dvs_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = 750000, \ + .uV_step = 50000, \ + .ramp_delay = MAX77802_RAMP_DELAY, \ + .n_voltages = 1 << 6, \ + .vsel_reg = MAX77802_REG_BUCK7OUT + (num - 7) * 3, \ + .vsel_mask = MAX77802_VSEL_MASK, \ + .enable_reg = MAX77802_REG_BUCK7CTRL + (num - 7) * 3, \ + .enable_mask = MAX77802_OPMODE_MASK, \ + .of_map_mode = max77802_map_mode, \ +} + +static const struct regulator_desc regulators[] = { + regulator_77802_desc_16_buck(1), + regulator_77802_desc_234_buck(2), + regulator_77802_desc_234_buck(3), + regulator_77802_desc_234_buck(4), + regulator_77802_desc_buck5(5), + regulator_77802_desc_16_buck(6), + regulator_77802_desc_buck7_10(7), + regulator_77802_desc_buck7_10(8), + regulator_77802_desc_buck7_10(9), + regulator_77802_desc_buck7_10(10), + regulator_77802_desc_n_ldo(1, 10, 2), + regulator_77802_desc_n_ldo(2, 10, 1), + regulator_77802_desc_p_ldo(3, 3, 2), + regulator_77802_desc_p_ldo(4, 6, 1), + regulator_77802_desc_p_ldo(5, 3, 1), + regulator_77802_desc_p_ldo(6, 3, 1), + regulator_77802_desc_p_ldo(7, 3, 1), + regulator_77802_desc_n_ldo(8, 1, 1), + regulator_77802_desc_p_ldo(9, 5, 1), + regulator_77802_desc_p_ldo(10, 4, 1), + regulator_77802_desc_p_ldo(11, 4, 1), + regulator_77802_desc_p_ldo(12, 9, 1), + regulator_77802_desc_p_ldo(13, 4, 1), + regulator_77802_desc_p_ldo(14, 4, 1), + regulator_77802_desc_n_ldo(15, 1, 1), + regulator_77802_desc_n_ldo(17, 2, 1), + regulator_77802_desc_p_ldo(18, 7, 1), + regulator_77802_desc_p_ldo(19, 5, 1), + regulator_77802_desc_p_ldo(20, 7, 2), + regulator_77802_desc_p_ldo(21, 6, 2), + regulator_77802_desc_p_ldo(23, 9, 1), + regulator_77802_desc_p_ldo(24, 6, 1), + regulator_77802_desc_p_ldo(25, 9, 1), + regulator_77802_desc_p_ldo(26, 9, 1), + regulator_77802_desc_n_ldo(27, 2, 1), + regulator_77802_desc_p_ldo(28, 7, 1), + regulator_77802_desc_p_ldo(29, 7, 1), + regulator_77802_desc_n_ldo(30, 2, 1), + regulator_77802_desc_p_ldo(32, 9, 1), + regulator_77802_desc_p_ldo(33, 6, 1), + regulator_77802_desc_p_ldo(34, 9, 1), + regulator_77802_desc_n_ldo(35, 2, 1), +}; + +static int max77802_pmic_probe(struct platform_device *pdev) +{ + struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); + struct max77802_regulator_prv *max77802; + int i, val; + struct regulator_config config = { }; + + max77802 = devm_kzalloc(&pdev->dev, + sizeof(struct max77802_regulator_prv), + GFP_KERNEL); + if (!max77802) + return -ENOMEM; + + config.dev = iodev->dev; + config.regmap = iodev->regmap; + config.driver_data = max77802; + platform_set_drvdata(pdev, max77802); + + for (i = 0; i < MAX77802_REG_MAX; i++) { + struct regulator_dev *rdev; + int id = regulators[i].id; + int shift = max77802_get_opmode_shift(id); + int ret; + + ret = regmap_read(iodev->regmap, regulators[i].enable_reg, &val); + if (ret < 0) { + dev_warn(&pdev->dev, + "cannot read current mode for %d\n", i); + val = MAX77802_OPMODE_NORMAL; + } else { + val = val >> shift & MAX77802_OPMODE_MASK; + } + + /* + * If the regulator is disabled and the system warm rebooted, + * the hardware reports OFF as the regulator operating mode. + * Default to operating mode NORMAL in that case. + */ + if (val == MAX77802_STATUS_OFF) + max77802->opmode[id] = MAX77802_OPMODE_NORMAL; + else + max77802->opmode[id] = val; + + rdev = devm_regulator_register(&pdev->dev, + ®ulators[i], &config); + if (IS_ERR(rdev)) { + ret = PTR_ERR(rdev); + dev_err(&pdev->dev, + "regulator init failed for %d: %d\n", i, ret); + return ret; + } + } + + return 0; +} + +static const struct platform_device_id max77802_pmic_id[] = { + {"max77802-pmic", 0}, + { }, +}; +MODULE_DEVICE_TABLE(platform, max77802_pmic_id); + +static struct platform_driver max77802_pmic_driver = { + .driver = { + .name = "max77802-pmic", + }, + .probe = max77802_pmic_probe, + .id_table = max77802_pmic_id, +}; + +module_platform_driver(max77802_pmic_driver); + +MODULE_DESCRIPTION("MAXIM 77802 Regulator Driver"); +MODULE_AUTHOR("Simon Glass "); +MODULE_LICENSE("GPL"); diff --git a/drivers/regulator/max77802.c b/drivers/regulator/max77802.c deleted file mode 100644 index c07ee13bd..000000000 --- a/drivers/regulator/max77802.c +++ /dev/null @@ -1,610 +0,0 @@ -/* - * max77802.c - Regulator driver for the Maxim 77802 - * - * Copyright (C) 2013-2014 Google, Inc - * Simon Glass - * - * Copyright (C) 2012 Samsung Electronics - * Chiwoong Byun - * Jonghwa Lee - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * This driver is based on max8997.c - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -/* Default ramp delay in case it is not manually set */ -#define MAX77802_RAMP_DELAY 100000 /* uV/us */ - -#define MAX77802_OPMODE_SHIFT_LDO 6 -#define MAX77802_OPMODE_BUCK234_SHIFT 4 -#define MAX77802_OPMODE_MASK 0x3 - -#define MAX77802_VSEL_MASK 0x3F -#define MAX77802_DVS_VSEL_MASK 0xFF - -#define MAX77802_RAMP_RATE_MASK_2BIT 0xC0 -#define MAX77802_RAMP_RATE_SHIFT_2BIT 6 -#define MAX77802_RAMP_RATE_MASK_4BIT 0xF0 -#define MAX77802_RAMP_RATE_SHIFT_4BIT 4 - -#define MAX77802_STATUS_OFF 0x0 -#define MAX77802_OFF_PWRREQ 0x1 -#define MAX77802_LP_PWRREQ 0x2 - -/* MAX77802 has two register formats: 2-bit and 4-bit */ -static const unsigned int ramp_table_77802_2bit[] = { - 12500, - 25000, - 50000, - 100000, -}; - -static unsigned int ramp_table_77802_4bit[] = { - 1000, 2000, 3030, 4000, - 5000, 5880, 7140, 8330, - 9090, 10000, 11110, 12500, - 16670, 25000, 50000, 100000, -}; - -struct max77802_regulator_prv { - /* Array indexed by regulator id */ - unsigned int opmode[MAX77802_REG_MAX]; -}; - -static inline unsigned int max77802_map_mode(unsigned int mode) -{ - return mode == MAX77802_OPMODE_NORMAL ? - REGULATOR_MODE_NORMAL : REGULATOR_MODE_STANDBY; -} - -static int max77802_get_opmode_shift(int id) -{ - if (id == MAX77802_BUCK1 || (id >= MAX77802_BUCK5 && - id <= MAX77802_BUCK10)) - return 0; - - if (id >= MAX77802_BUCK2 && id <= MAX77802_BUCK4) - return MAX77802_OPMODE_BUCK234_SHIFT; - - if (id >= MAX77802_LDO1 && id <= MAX77802_LDO35) - return MAX77802_OPMODE_SHIFT_LDO; - - return -EINVAL; -} - -/** - * max77802_set_suspend_disable - Disable the regulator during system suspend - * @rdev: regulator to mark as disabled - * - * All regulators expect LDO 1, 3, 20 and 21 support OFF by PWRREQ. - * Configure the regulator so the PMIC will turn it OFF during system suspend. - */ -static int max77802_set_suspend_disable(struct regulator_dev *rdev) -{ - unsigned int val = MAX77802_OFF_PWRREQ; - struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); - int id = rdev_get_id(rdev); - int shift = max77802_get_opmode_shift(id); - - max77802->opmode[id] = val; - return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, val << shift); -} - -/* - * Some LDOs support Low Power Mode while the system is running. - * - * LDOs 1, 3, 20, 21. - */ -static int max77802_set_mode(struct regulator_dev *rdev, unsigned int mode) -{ - struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); - int id = rdev_get_id(rdev); - unsigned int val; - int shift = max77802_get_opmode_shift(id); - - switch (mode) { - case REGULATOR_MODE_STANDBY: - val = MAX77802_OPMODE_LP; /* ON in Low Power Mode */ - break; - case REGULATOR_MODE_NORMAL: - val = MAX77802_OPMODE_NORMAL; /* ON in Normal Mode */ - break; - default: - dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n", - rdev->desc->name, mode); - return -EINVAL; - } - - max77802->opmode[id] = val; - return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, val << shift); -} - -static unsigned max77802_get_mode(struct regulator_dev *rdev) -{ - struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); - int id = rdev_get_id(rdev); - - return max77802_map_mode(max77802->opmode[id]); -} - -/** - * max77802_set_suspend_mode - set regulator opmode when the system is suspended - * @rdev: regulator to change mode - * @mode: operating mode to be set - * - * Will set the operating mode for the regulators during system suspend. - * This function is valid for the three different enable control logics: - * - * Enable Control Logic1 by PWRREQ (BUCK 2-4 and LDOs 2, 4-19, 22-35) - * Enable Control Logic2 by PWRREQ (LDOs 1, 20, 21) - * Enable Control Logic3 by PWRREQ (LDO 3) - * - * If setting the regulator mode fails, the function only warns but does - * not return an error code to avoid the regulator core to stop setting - * the operating mode for the remaining regulators. - */ -static int max77802_set_suspend_mode(struct regulator_dev *rdev, - unsigned int mode) -{ - struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); - int id = rdev_get_id(rdev); - unsigned int val; - int shift = max77802_get_opmode_shift(id); - - /* - * If the regulator has been disabled for suspend - * then is invalid to try setting a suspend mode. - */ - if (max77802->opmode[id] == MAX77802_OFF_PWRREQ) { - dev_warn(&rdev->dev, "%s: is disabled, mode: 0x%x not set\n", - rdev->desc->name, mode); - return 0; - } - - switch (mode) { - case REGULATOR_MODE_STANDBY: - /* - * If the regulator opmode is normal then enable - * ON in Low Power Mode by PWRREQ. If the mode is - * already Low Power then no action is required. - */ - if (max77802->opmode[id] == MAX77802_OPMODE_NORMAL) - val = MAX77802_LP_PWRREQ; - else - return 0; - break; - case REGULATOR_MODE_NORMAL: - /* - * If the regulator operating mode is Low Power then - * normal is not a valid opmode in suspend. If the - * mode is already normal then no action is required. - */ - if (max77802->opmode[id] == MAX77802_OPMODE_LP) - dev_warn(&rdev->dev, "%s: in Low Power: 0x%x invalid\n", - rdev->desc->name, mode); - return 0; - default: - dev_warn(&rdev->dev, "%s: regulator mode: 0x%x not supported\n", - rdev->desc->name, mode); - return -EINVAL; - } - - return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, val << shift); -} - -static int max77802_enable(struct regulator_dev *rdev) -{ - struct max77802_regulator_prv *max77802 = rdev_get_drvdata(rdev); - int id = rdev_get_id(rdev); - int shift = max77802_get_opmode_shift(id); - - if (max77802->opmode[id] == MAX77802_OFF_PWRREQ) - max77802->opmode[id] = MAX77802_OPMODE_NORMAL; - - return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - rdev->desc->enable_mask, - max77802->opmode[id] << shift); -} - -static int max77802_find_ramp_value(struct regulator_dev *rdev, - const unsigned int limits[], int size, - unsigned int ramp_delay) -{ - int i; - - for (i = 0; i < size; i++) { - if (ramp_delay <= limits[i]) - return i; - } - - /* Use maximum value for no ramp control */ - dev_warn(&rdev->dev, "%s: ramp_delay: %d not supported, setting 100000\n", - rdev->desc->name, ramp_delay); - return size - 1; -} - -/* Used for BUCKs 2-4 */ -static int max77802_set_ramp_delay_2bit(struct regulator_dev *rdev, - int ramp_delay) -{ - int id = rdev_get_id(rdev); - unsigned int ramp_value; - - if (id > MAX77802_BUCK4) { - dev_warn(&rdev->dev, - "%s: regulator: ramp delay not supported\n", - rdev->desc->name); - return -EINVAL; - } - ramp_value = max77802_find_ramp_value(rdev, ramp_table_77802_2bit, - ARRAY_SIZE(ramp_table_77802_2bit), ramp_delay); - - return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - MAX77802_RAMP_RATE_MASK_2BIT, - ramp_value << MAX77802_RAMP_RATE_SHIFT_2BIT); -} - -/* For BUCK1, 6 */ -static int max77802_set_ramp_delay_4bit(struct regulator_dev *rdev, - int ramp_delay) -{ - unsigned int ramp_value; - - ramp_value = max77802_find_ramp_value(rdev, ramp_table_77802_4bit, - ARRAY_SIZE(ramp_table_77802_4bit), ramp_delay); - - return regmap_update_bits(rdev->regmap, rdev->desc->enable_reg, - MAX77802_RAMP_RATE_MASK_4BIT, - ramp_value << MAX77802_RAMP_RATE_SHIFT_4BIT); -} - -/* - * LDOs 2, 4-19, 22-35 - */ -static struct regulator_ops max77802_ldo_ops_logic1 = { - .list_voltage = regulator_list_voltage_linear, - .map_voltage = regulator_map_voltage_linear, - .is_enabled = regulator_is_enabled_regmap, - .enable = max77802_enable, - .disable = regulator_disable_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .set_voltage_time_sel = regulator_set_voltage_time_sel, - .set_suspend_disable = max77802_set_suspend_disable, - .set_suspend_mode = max77802_set_suspend_mode, -}; - -/* - * LDOs 1, 20, 21, 3 - */ -static struct regulator_ops max77802_ldo_ops_logic2 = { - .list_voltage = regulator_list_voltage_linear, - .map_voltage = regulator_map_voltage_linear, - .is_enabled = regulator_is_enabled_regmap, - .enable = max77802_enable, - .disable = regulator_disable_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .set_voltage_time_sel = regulator_set_voltage_time_sel, - .set_mode = max77802_set_mode, - .get_mode = max77802_get_mode, - .set_suspend_mode = max77802_set_suspend_mode, -}; - -/* BUCKS 1, 6 */ -static struct regulator_ops max77802_buck_16_dvs_ops = { - .list_voltage = regulator_list_voltage_linear, - .map_voltage = regulator_map_voltage_linear, - .is_enabled = regulator_is_enabled_regmap, - .enable = max77802_enable, - .disable = regulator_disable_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .set_voltage_time_sel = regulator_set_voltage_time_sel, - .set_ramp_delay = max77802_set_ramp_delay_4bit, - .set_suspend_disable = max77802_set_suspend_disable, -}; - -/* BUCKs 2-4 */ -static struct regulator_ops max77802_buck_234_ops = { - .list_voltage = regulator_list_voltage_linear, - .map_voltage = regulator_map_voltage_linear, - .is_enabled = regulator_is_enabled_regmap, - .enable = max77802_enable, - .disable = regulator_disable_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .set_voltage_time_sel = regulator_set_voltage_time_sel, - .set_ramp_delay = max77802_set_ramp_delay_2bit, - .set_suspend_disable = max77802_set_suspend_disable, - .set_suspend_mode = max77802_set_suspend_mode, -}; - -/* BUCKs 5, 7-10 */ -static struct regulator_ops max77802_buck_dvs_ops = { - .list_voltage = regulator_list_voltage_linear, - .map_voltage = regulator_map_voltage_linear, - .is_enabled = regulator_is_enabled_regmap, - .enable = max77802_enable, - .disable = regulator_disable_regmap, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_sel = regulator_set_voltage_sel_regmap, - .set_voltage_time_sel = regulator_set_voltage_time_sel, - .set_ramp_delay = max77802_set_ramp_delay_2bit, - .set_suspend_disable = max77802_set_suspend_disable, -}; - -/* LDOs 3-7, 9-14, 18-26, 28, 29, 32-34 */ -#define regulator_77802_desc_p_ldo(num, supply, log) { \ - .name = "LDO"#num, \ - .of_match = of_match_ptr("LDO"#num), \ - .regulators_node = of_match_ptr("regulators"), \ - .id = MAX77802_LDO##num, \ - .supply_name = "inl"#supply, \ - .ops = &max77802_ldo_ops_logic##log, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = 800000, \ - .uV_step = 50000, \ - .ramp_delay = MAX77802_RAMP_DELAY, \ - .n_voltages = 1 << 6, \ - .vsel_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \ - .vsel_mask = MAX77802_VSEL_MASK, \ - .enable_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \ - .enable_mask = MAX77802_OPMODE_MASK << MAX77802_OPMODE_SHIFT_LDO, \ - .of_map_mode = max77802_map_mode, \ -} - -/* LDOs 1, 2, 8, 15, 17, 27, 30, 35 */ -#define regulator_77802_desc_n_ldo(num, supply, log) { \ - .name = "LDO"#num, \ - .of_match = of_match_ptr("LDO"#num), \ - .regulators_node = of_match_ptr("regulators"), \ - .id = MAX77802_LDO##num, \ - .supply_name = "inl"#supply, \ - .ops = &max77802_ldo_ops_logic##log, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = 800000, \ - .uV_step = 25000, \ - .ramp_delay = MAX77802_RAMP_DELAY, \ - .n_voltages = 1 << 6, \ - .vsel_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \ - .vsel_mask = MAX77802_VSEL_MASK, \ - .enable_reg = MAX77802_REG_LDO1CTRL1 + num - 1, \ - .enable_mask = MAX77802_OPMODE_MASK << MAX77802_OPMODE_SHIFT_LDO, \ - .of_map_mode = max77802_map_mode, \ -} - -/* BUCKs 1, 6 */ -#define regulator_77802_desc_16_buck(num) { \ - .name = "BUCK"#num, \ - .of_match = of_match_ptr("BUCK"#num), \ - .regulators_node = of_match_ptr("regulators"), \ - .id = MAX77802_BUCK##num, \ - .supply_name = "inb"#num, \ - .ops = &max77802_buck_16_dvs_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = 612500, \ - .uV_step = 6250, \ - .ramp_delay = MAX77802_RAMP_DELAY, \ - .n_voltages = 1 << 8, \ - .vsel_reg = MAX77802_REG_BUCK ## num ## DVS1, \ - .vsel_mask = MAX77802_DVS_VSEL_MASK, \ - .enable_reg = MAX77802_REG_BUCK ## num ## CTRL, \ - .enable_mask = MAX77802_OPMODE_MASK, \ - .of_map_mode = max77802_map_mode, \ -} - -/* BUCKS 2-4 */ -#define regulator_77802_desc_234_buck(num) { \ - .name = "BUCK"#num, \ - .of_match = of_match_ptr("BUCK"#num), \ - .regulators_node = of_match_ptr("regulators"), \ - .id = MAX77802_BUCK##num, \ - .supply_name = "inb"#num, \ - .ops = &max77802_buck_234_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = 600000, \ - .uV_step = 6250, \ - .ramp_delay = MAX77802_RAMP_DELAY, \ - .n_voltages = 0x91, \ - .vsel_reg = MAX77802_REG_BUCK ## num ## DVS1, \ - .vsel_mask = MAX77802_DVS_VSEL_MASK, \ - .enable_reg = MAX77802_REG_BUCK ## num ## CTRL1, \ - .enable_mask = MAX77802_OPMODE_MASK << \ - MAX77802_OPMODE_BUCK234_SHIFT, \ - .of_map_mode = max77802_map_mode, \ -} - -/* BUCK 5 */ -#define regulator_77802_desc_buck5(num) { \ - .name = "BUCK"#num, \ - .of_match = of_match_ptr("BUCK"#num), \ - .regulators_node = of_match_ptr("regulators"), \ - .id = MAX77802_BUCK##num, \ - .supply_name = "inb"#num, \ - .ops = &max77802_buck_dvs_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = 750000, \ - .uV_step = 50000, \ - .ramp_delay = MAX77802_RAMP_DELAY, \ - .n_voltages = 1 << 6, \ - .vsel_reg = MAX77802_REG_BUCK5OUT, \ - .vsel_mask = MAX77802_VSEL_MASK, \ - .enable_reg = MAX77802_REG_BUCK5CTRL, \ - .enable_mask = MAX77802_OPMODE_MASK, \ - .of_map_mode = max77802_map_mode, \ -} - -/* BUCKs 7-10 */ -#define regulator_77802_desc_buck7_10(num) { \ - .name = "BUCK"#num, \ - .of_match = of_match_ptr("BUCK"#num), \ - .regulators_node = of_match_ptr("regulators"), \ - .id = MAX77802_BUCK##num, \ - .supply_name = "inb"#num, \ - .ops = &max77802_buck_dvs_ops, \ - .type = REGULATOR_VOLTAGE, \ - .owner = THIS_MODULE, \ - .min_uV = 750000, \ - .uV_step = 50000, \ - .ramp_delay = MAX77802_RAMP_DELAY, \ - .n_voltages = 1 << 6, \ - .vsel_reg = MAX77802_REG_BUCK7OUT + (num - 7) * 3, \ - .vsel_mask = MAX77802_VSEL_MASK, \ - .enable_reg = MAX77802_REG_BUCK7CTRL + (num - 7) * 3, \ - .enable_mask = MAX77802_OPMODE_MASK, \ - .of_map_mode = max77802_map_mode, \ -} - -static const struct regulator_desc regulators[] = { - regulator_77802_desc_16_buck(1), - regulator_77802_desc_234_buck(2), - regulator_77802_desc_234_buck(3), - regulator_77802_desc_234_buck(4), - regulator_77802_desc_buck5(5), - regulator_77802_desc_16_buck(6), - regulator_77802_desc_buck7_10(7), - regulator_77802_desc_buck7_10(8), - regulator_77802_desc_buck7_10(9), - regulator_77802_desc_buck7_10(10), - regulator_77802_desc_n_ldo(1, 10, 2), - regulator_77802_desc_n_ldo(2, 10, 1), - regulator_77802_desc_p_ldo(3, 3, 2), - regulator_77802_desc_p_ldo(4, 6, 1), - regulator_77802_desc_p_ldo(5, 3, 1), - regulator_77802_desc_p_ldo(6, 3, 1), - regulator_77802_desc_p_ldo(7, 3, 1), - regulator_77802_desc_n_ldo(8, 1, 1), - regulator_77802_desc_p_ldo(9, 5, 1), - regulator_77802_desc_p_ldo(10, 4, 1), - regulator_77802_desc_p_ldo(11, 4, 1), - regulator_77802_desc_p_ldo(12, 9, 1), - regulator_77802_desc_p_ldo(13, 4, 1), - regulator_77802_desc_p_ldo(14, 4, 1), - regulator_77802_desc_n_ldo(15, 1, 1), - regulator_77802_desc_n_ldo(17, 2, 1), - regulator_77802_desc_p_ldo(18, 7, 1), - regulator_77802_desc_p_ldo(19, 5, 1), - regulator_77802_desc_p_ldo(20, 7, 2), - regulator_77802_desc_p_ldo(21, 6, 2), - regulator_77802_desc_p_ldo(23, 9, 1), - regulator_77802_desc_p_ldo(24, 6, 1), - regulator_77802_desc_p_ldo(25, 9, 1), - regulator_77802_desc_p_ldo(26, 9, 1), - regulator_77802_desc_n_ldo(27, 2, 1), - regulator_77802_desc_p_ldo(28, 7, 1), - regulator_77802_desc_p_ldo(29, 7, 1), - regulator_77802_desc_n_ldo(30, 2, 1), - regulator_77802_desc_p_ldo(32, 9, 1), - regulator_77802_desc_p_ldo(33, 6, 1), - regulator_77802_desc_p_ldo(34, 9, 1), - regulator_77802_desc_n_ldo(35, 2, 1), -}; - -static int max77802_pmic_probe(struct platform_device *pdev) -{ - struct max77686_dev *iodev = dev_get_drvdata(pdev->dev.parent); - struct max77802_regulator_prv *max77802; - int i, val; - struct regulator_config config = { }; - - max77802 = devm_kzalloc(&pdev->dev, - sizeof(struct max77802_regulator_prv), - GFP_KERNEL); - if (!max77802) - return -ENOMEM; - - config.dev = iodev->dev; - config.regmap = iodev->regmap; - config.driver_data = max77802; - platform_set_drvdata(pdev, max77802); - - for (i = 0; i < MAX77802_REG_MAX; i++) { - struct regulator_dev *rdev; - int id = regulators[i].id; - int shift = max77802_get_opmode_shift(id); - int ret; - - ret = regmap_read(iodev->regmap, regulators[i].enable_reg, &val); - if (ret < 0) { - dev_warn(&pdev->dev, - "cannot read current mode for %d\n", i); - val = MAX77802_OPMODE_NORMAL; - } else { - val = val >> shift & MAX77802_OPMODE_MASK; - } - - /* - * If the regulator is disabled and the system warm rebooted, - * the hardware reports OFF as the regulator operating mode. - * Default to operating mode NORMAL in that case. - */ - if (val == MAX77802_STATUS_OFF) - max77802->opmode[id] = MAX77802_OPMODE_NORMAL; - else - max77802->opmode[id] = val; - - rdev = devm_regulator_register(&pdev->dev, - ®ulators[i], &config); - if (IS_ERR(rdev)) { - ret = PTR_ERR(rdev); - dev_err(&pdev->dev, - "regulator init failed for %d: %d\n", i, ret); - return ret; - } - } - - return 0; -} - -static const struct platform_device_id max77802_pmic_id[] = { - {"max77802-pmic", 0}, - { }, -}; -MODULE_DEVICE_TABLE(platform, max77802_pmic_id); - -static struct platform_driver max77802_pmic_driver = { - .driver = { - .name = "max77802-pmic", - }, - .probe = max77802_pmic_probe, - .id_table = max77802_pmic_id, -}; - -module_platform_driver(max77802_pmic_driver); - -MODULE_DESCRIPTION("MAXIM 77802 Regulator Driver"); -MODULE_AUTHOR("Simon Glass "); -MODULE_LICENSE("GPL"); diff --git a/drivers/regulator/mt6397-regulator.c b/drivers/regulator/mt6397-regulator.c index a5b2f4762..17a5b6c2d 100644 --- a/drivers/regulator/mt6397-regulator.c +++ b/drivers/regulator/mt6397-regulator.c @@ -317,11 +317,25 @@ static int mt6397_regulator_probe(struct platform_device *pdev) return 0; } +static const struct platform_device_id mt6397_platform_ids[] = { + {"mt6397-regulator", 0}, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(platform, mt6397_platform_ids); + +static const struct of_device_id mt6397_of_match[] = { + { .compatible = "mediatek,mt6397-regulator", }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, mt6397_of_match); + static struct platform_driver mt6397_regulator_driver = { .driver = { .name = "mt6397-regulator", + .of_match_table = of_match_ptr(mt6397_of_match), }, .probe = mt6397_regulator_probe, + .id_table = mt6397_platform_ids, }; module_platform_driver(mt6397_regulator_driver); @@ -329,4 +343,3 @@ module_platform_driver(mt6397_regulator_driver); MODULE_AUTHOR("Flora Fu "); MODULE_DESCRIPTION("Regulator Driver for MediaTek MT6397 PMIC"); MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:mt6397-regulator"); diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c index 499e437c7..6b0aa80b2 100644 --- a/drivers/regulator/of_regulator.c +++ b/drivers/regulator/of_regulator.c @@ -28,7 +28,6 @@ static void of_get_regulation_constraints(struct device_node *np, struct regulator_init_data **init_data, const struct regulator_desc *desc) { - const __be32 *min_uV, *max_uV; struct regulation_constraints *constraints = &(*init_data)->constraints; struct regulator_state *suspend_state; struct device_node *suspend_np; @@ -37,18 +36,18 @@ static void of_get_regulation_constraints(struct device_node *np, constraints->name = of_get_property(np, "regulator-name", NULL); - min_uV = of_get_property(np, "regulator-min-microvolt", NULL); - if (min_uV) - constraints->min_uV = be32_to_cpu(*min_uV); - max_uV = of_get_property(np, "regulator-max-microvolt", NULL); - if (max_uV) - constraints->max_uV = be32_to_cpu(*max_uV); + if (!of_property_read_u32(np, "regulator-min-microvolt", &pval)) + constraints->min_uV = pval; + + if (!of_property_read_u32(np, "regulator-max-microvolt", &pval)) + constraints->max_uV = pval; /* Voltage change possible? */ if (constraints->min_uV != constraints->max_uV) constraints->valid_ops_mask |= REGULATOR_CHANGE_VOLTAGE; /* Only one voltage? Then make sure it's set. */ - if (min_uV && max_uV && constraints->min_uV == constraints->max_uV) + if (constraints->min_uV && constraints->max_uV && + constraints->min_uV == constraints->max_uV) constraints->apply_uV = true; if (!of_property_read_u32(np, "regulator-microvolt-offset", &pval)) @@ -93,6 +92,12 @@ static void of_get_regulation_constraints(struct device_node *np, constraints->soft_start = of_property_read_bool(np, "regulator-soft-start"); + ret = of_property_read_u32(np, "regulator-active-discharge", &pval); + if (!ret) { + constraints->active_discharge = + (pval) ? REGULATOR_ACTIVE_DISCHARGE_ENABLE : + REGULATOR_ACTIVE_DISCHARGE_DISABLE; + } if (!of_property_read_u32(np, "regulator-initial-mode", &pval)) { if (desc && desc->of_map_mode) { diff --git a/drivers/regulator/pv88060-regulator.c b/drivers/regulator/pv88060-regulator.c index 094376c8d..c448b727f 100644 --- a/drivers/regulator/pv88060-regulator.c +++ b/drivers/regulator/pv88060-regulator.c @@ -285,8 +285,8 @@ static irqreturn_t pv88060_irq_handler(int irq, void *data) } } - err = regmap_update_bits(chip->regmap, PV88060_REG_EVENT_A, - PV88060_E_VDD_FLT, PV88060_E_VDD_FLT); + err = regmap_write(chip->regmap, PV88060_REG_EVENT_A, + PV88060_E_VDD_FLT); if (err < 0) goto error_i2c; @@ -302,8 +302,8 @@ static irqreturn_t pv88060_irq_handler(int irq, void *data) } } - err = regmap_update_bits(chip->regmap, PV88060_REG_EVENT_A, - PV88060_E_OVER_TEMP, PV88060_E_OVER_TEMP); + err = regmap_write(chip->regmap, PV88060_REG_EVENT_A, + PV88060_E_OVER_TEMP); if (err < 0) goto error_i2c; diff --git a/drivers/regulator/pv88090-regulator.c b/drivers/regulator/pv88090-regulator.c index ac15f31b5..0057c6740 100644 --- a/drivers/regulator/pv88090-regulator.c +++ b/drivers/regulator/pv88090-regulator.c @@ -283,8 +283,8 @@ static irqreturn_t pv88090_irq_handler(int irq, void *data) } } - err = regmap_update_bits(chip->regmap, PV88090_REG_EVENT_A, - PV88090_E_VDD_FLT, PV88090_E_VDD_FLT); + err = regmap_write(chip->regmap, PV88090_REG_EVENT_A, + PV88090_E_VDD_FLT); if (err < 0) goto error_i2c; @@ -300,8 +300,8 @@ static irqreturn_t pv88090_irq_handler(int irq, void *data) } } - err = regmap_update_bits(chip->regmap, PV88090_REG_EVENT_A, - PV88090_E_OVER_TEMP, PV88090_E_OVER_TEMP); + err = regmap_write(chip->regmap, PV88090_REG_EVENT_A, + PV88090_E_OVER_TEMP); if (err < 0) goto error_i2c; diff --git a/drivers/regulator/pwm-regulator.c b/drivers/regulator/pwm-regulator.c index 3aca067b9..4689d62f4 100644 --- a/drivers/regulator/pwm-regulator.c +++ b/drivers/regulator/pwm-regulator.c @@ -27,6 +27,13 @@ struct pwm_regulator_data { /* Voltage table */ struct pwm_voltages *duty_cycle_table; + + /* regulator descriptor */ + struct regulator_desc desc; + + /* Regulator ops */ + struct regulator_ops ops; + int state; /* Continuous voltage */ @@ -115,7 +122,7 @@ static int pwm_voltage_to_duty_cycle_percentage(struct regulator_dev *rdev, int int max_uV = rdev->constraints->max_uV; int diff = max_uV - min_uV; - return 100 - (((req_uV * 100) - (min_uV * 100)) / diff); + return ((req_uV * 100) - (min_uV * 100)) / diff; } static int pwm_regulator_get_voltage(struct regulator_dev *rdev) @@ -212,8 +219,10 @@ static int pwm_regulator_init_table(struct platform_device *pdev, } drvdata->duty_cycle_table = duty_cycle_table; - pwm_regulator_desc.ops = &pwm_regulator_voltage_table_ops; - pwm_regulator_desc.n_voltages = length / sizeof(*duty_cycle_table); + memcpy(&drvdata->ops, &pwm_regulator_voltage_table_ops, + sizeof(drvdata->ops)); + drvdata->desc.ops = &drvdata->ops; + drvdata->desc.n_voltages = length / sizeof(*duty_cycle_table); return 0; } @@ -221,8 +230,10 @@ static int pwm_regulator_init_table(struct platform_device *pdev, static int pwm_regulator_init_continuous(struct platform_device *pdev, struct pwm_regulator_data *drvdata) { - pwm_regulator_desc.ops = &pwm_regulator_voltage_continuous_ops; - pwm_regulator_desc.continuous_voltage_range = true; + memcpy(&drvdata->ops, &pwm_regulator_voltage_continuous_ops, + sizeof(drvdata->ops)); + drvdata->desc.ops = &drvdata->ops; + drvdata->desc.continuous_voltage_range = true; return 0; } @@ -245,6 +256,8 @@ static int pwm_regulator_probe(struct platform_device *pdev) if (!drvdata) return -ENOMEM; + memcpy(&drvdata->desc, &pwm_regulator_desc, sizeof(drvdata->desc)); + if (of_find_property(np, "voltage-table", NULL)) ret = pwm_regulator_init_table(pdev, drvdata); else @@ -253,7 +266,7 @@ static int pwm_regulator_probe(struct platform_device *pdev) return ret; init_data = of_get_regulator_init_data(&pdev->dev, np, - &pwm_regulator_desc); + &drvdata->desc); if (!init_data) return -ENOMEM; @@ -269,10 +282,10 @@ static int pwm_regulator_probe(struct platform_device *pdev) } regulator = devm_regulator_register(&pdev->dev, - &pwm_regulator_desc, &config); + &drvdata->desc, &config); if (IS_ERR(regulator)) { dev_err(&pdev->dev, "Failed to register regulator %s\n", - pwm_regulator_desc.name); + drvdata->desc.name); return PTR_ERR(regulator); } diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c index 3242ffc0c..6dfa3502e 100644 --- a/drivers/regulator/s2mps11.c +++ b/drivers/regulator/s2mps11.c @@ -38,7 +38,6 @@ /* The highest number of possible regulators for supported devices. */ #define S2MPS_REGULATOR_MAX S2MPS13_REGULATOR_MAX struct s2mps11_info { - unsigned int rdev_num; int ramp_delay2; int ramp_delay34; int ramp_delay5; @@ -54,7 +53,10 @@ struct s2mps11_info { */ DECLARE_BITMAP(suspend_state, S2MPS_REGULATOR_MAX); - /* Array of size rdev_num with GPIO-s for external sleep control */ + /* + * Array (size: number of regulators) with GPIO-s for external + * sleep control. + */ int *ext_control_gpio; }; @@ -306,7 +308,7 @@ static struct regulator_ops s2mps11_buck_ops = { .enable_mask = S2MPS11_ENABLE_MASK \ } -#define regulator_desc_s2mps11_buck6_10(num, min, step) { \ +#define regulator_desc_s2mps11_buck67810(num, min, step) { \ .name = "BUCK"#num, \ .id = S2MPS11_BUCK##num, \ .ops = &s2mps11_buck_ops, \ @@ -322,6 +324,22 @@ static struct regulator_ops s2mps11_buck_ops = { .enable_mask = S2MPS11_ENABLE_MASK \ } +#define regulator_desc_s2mps11_buck9 { \ + .name = "BUCK9", \ + .id = S2MPS11_BUCK9, \ + .ops = &s2mps11_buck_ops, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .min_uV = MIN_3000_MV, \ + .uV_step = STEP_25_MV, \ + .n_voltages = S2MPS11_BUCK9_N_VOLTAGES, \ + .ramp_delay = S2MPS11_RAMP_DELAY, \ + .vsel_reg = S2MPS11_REG_B9CTRL2, \ + .vsel_mask = S2MPS11_BUCK9_VSEL_MASK, \ + .enable_reg = S2MPS11_REG_B9CTRL1, \ + .enable_mask = S2MPS11_ENABLE_MASK \ +} + static const struct regulator_desc s2mps11_regulators[] = { regulator_desc_s2mps11_ldo(1, STEP_25_MV), regulator_desc_s2mps11_ldo(2, STEP_50_MV), @@ -366,11 +384,11 @@ static const struct regulator_desc s2mps11_regulators[] = { regulator_desc_s2mps11_buck1_4(3), regulator_desc_s2mps11_buck1_4(4), regulator_desc_s2mps11_buck5, - regulator_desc_s2mps11_buck6_10(6, MIN_600_MV, STEP_6_25_MV), - regulator_desc_s2mps11_buck6_10(7, MIN_600_MV, STEP_6_25_MV), - regulator_desc_s2mps11_buck6_10(8, MIN_600_MV, STEP_6_25_MV), - regulator_desc_s2mps11_buck6_10(9, MIN_3000_MV, STEP_25_MV), - regulator_desc_s2mps11_buck6_10(10, MIN_750_MV, STEP_12_5_MV), + regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV), + regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_6_25_MV), + regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_6_25_MV), + regulator_desc_s2mps11_buck9, + regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV), }; static struct regulator_ops s2mps14_reg_ops; @@ -819,7 +837,8 @@ static void s2mps14_pmic_dt_parse_ext_control_gpio(struct platform_device *pdev, } static int s2mps11_pmic_dt_parse(struct platform_device *pdev, - struct of_regulator_match *rdata, struct s2mps11_info *s2mps11) + struct of_regulator_match *rdata, struct s2mps11_info *s2mps11, + unsigned int rdev_num) { struct device_node *reg_np; @@ -829,7 +848,7 @@ static int s2mps11_pmic_dt_parse(struct platform_device *pdev, return -EINVAL; } - of_regulator_match(&pdev->dev, reg_np, rdata, s2mps11->rdev_num); + of_regulator_match(&pdev->dev, reg_np, rdata, rdev_num); if (s2mps11->dev_type == S2MPS14X) s2mps14_pmic_dt_parse_ext_control_gpio(pdev, rdata, s2mps11); @@ -1077,6 +1096,7 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) struct of_regulator_match *rdata = NULL; struct regulator_config config = { }; struct s2mps11_info *s2mps11; + unsigned int rdev_num = 0; int i, ret = 0; const struct regulator_desc *regulators; @@ -1088,28 +1108,29 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) s2mps11->dev_type = platform_get_device_id(pdev)->driver_data; switch (s2mps11->dev_type) { case S2MPS11X: - s2mps11->rdev_num = ARRAY_SIZE(s2mps11_regulators); + rdev_num = ARRAY_SIZE(s2mps11_regulators); regulators = s2mps11_regulators; - BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); + BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps11_regulators)); break; case S2MPS13X: - s2mps11->rdev_num = ARRAY_SIZE(s2mps13_regulators); + rdev_num = ARRAY_SIZE(s2mps13_regulators); regulators = s2mps13_regulators; - BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); + BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps13_regulators)); break; case S2MPS14X: - s2mps11->rdev_num = ARRAY_SIZE(s2mps14_regulators); + rdev_num = ARRAY_SIZE(s2mps14_regulators); regulators = s2mps14_regulators; - BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); + BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps14_regulators)); break; case S2MPS15X: - s2mps11->rdev_num = ARRAY_SIZE(s2mps15_regulators); + rdev_num = ARRAY_SIZE(s2mps15_regulators); regulators = s2mps15_regulators; + BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mps15_regulators)); break; case S2MPU02: - s2mps11->rdev_num = ARRAY_SIZE(s2mpu02_regulators); + rdev_num = ARRAY_SIZE(s2mpu02_regulators); regulators = s2mpu02_regulators; - BUILD_BUG_ON(S2MPS_REGULATOR_MAX < s2mps11->rdev_num); + BUILD_BUG_ON(S2MPS_REGULATOR_MAX < ARRAY_SIZE(s2mpu02_regulators)); break; default: dev_err(&pdev->dev, "Invalid device type: %u\n", @@ -1118,7 +1139,7 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) } s2mps11->ext_control_gpio = devm_kmalloc(&pdev->dev, - sizeof(*s2mps11->ext_control_gpio) * s2mps11->rdev_num, + sizeof(*s2mps11->ext_control_gpio) * rdev_num, GFP_KERNEL); if (!s2mps11->ext_control_gpio) return -ENOMEM; @@ -1126,7 +1147,7 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) * 0 is a valid GPIO so initialize all GPIO-s to negative value * to indicate that external control won't be used for this regulator. */ - for (i = 0; i < s2mps11->rdev_num; i++) + for (i = 0; i < rdev_num; i++) s2mps11->ext_control_gpio[i] = -EINVAL; if (!iodev->dev->of_node) { @@ -1140,14 +1161,14 @@ static int s2mps11_pmic_probe(struct platform_device *pdev) } } - rdata = kzalloc(sizeof(*rdata) * s2mps11->rdev_num, GFP_KERNEL); + rdata = kzalloc(sizeof(*rdata) * rdev_num, GFP_KERNEL); if (!rdata) return -ENOMEM; - for (i = 0; i < s2mps11->rdev_num; i++) + for (i = 0; i < rdev_num; i++) rdata[i].name = regulators[i].name; - ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11); + ret = s2mps11_pmic_dt_parse(pdev, rdata, s2mps11, rdev_num); if (ret) goto out; @@ -1159,7 +1180,7 @@ common_reg: config.driver_data = s2mps11; config.ena_gpio_flags = GPIOF_OUT_INIT_HIGH; config.ena_gpio_initialized = true; - for (i = 0; i < s2mps11->rdev_num; i++) { + for (i = 0; i < rdev_num; i++) { struct regulator_dev *regulator; if (pdata) { diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c index 9503d5481..a4921a70d 100644 --- a/drivers/regulator/tps65912-regulator.c +++ b/drivers/regulator/tps65912-regulator.c @@ -1,541 +1,168 @@ /* - * tps65912.c -- TI tps65912 + * Regulator driver for TI TPS65912x PMICs * - * Copyright 2011 Texas Instruments Inc. + * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/ + * Andrew F. Davis * - * Author: Margarita Olaya Cabrera + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether expressed or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License version 2 for more details. * - * This driver is based on wm8350 implementation. + * Based on the TPS65218 driver and the previous TPS65912 driver by + * Margarita Olaya Cabrera */ -#include #include -#include -#include #include #include -#include -#include -#include -#include - -/* DCDC's */ -#define TPS65912_REG_DCDC1 0 -#define TPS65912_REG_DCDC2 1 -#define TPS65912_REG_DCDC3 2 -#define TPS65912_REG_DCDC4 3 - -/* LDOs */ -#define TPS65912_REG_LDO1 4 -#define TPS65912_REG_LDO2 5 -#define TPS65912_REG_LDO3 6 -#define TPS65912_REG_LDO4 7 -#define TPS65912_REG_LDO5 8 -#define TPS65912_REG_LDO6 9 -#define TPS65912_REG_LDO7 10 -#define TPS65912_REG_LDO8 11 -#define TPS65912_REG_LDO9 12 -#define TPS65912_REG_LDO10 13 - -/* Number of step-down converters available */ -#define TPS65912_NUM_DCDC 4 - -/* Number of LDO voltage regulators available */ -#define TPS65912_NUM_LDO 10 -/* Number of total regulators available */ -#define TPS65912_NUM_REGULATOR (TPS65912_NUM_DCDC + TPS65912_NUM_LDO) - -#define TPS65912_REG_ENABLED 0x80 -#define OP_SELREG_MASK 0x40 -#define OP_SELREG_SHIFT 6 - -struct tps_info { - const char *name; -}; +#include -static struct tps_info tps65912_regs[] = { - { - .name = "DCDC1", - }, - { - .name = "DCDC2", - }, - { - .name = "DCDC3", - }, - { - .name = "DCDC4", - }, - { - .name = "LDO1", - }, - { - .name = "LDO2", - }, - { - .name = "LDO3", - }, - { - .name = "LDO4", - }, - { - .name = "LDO5", - }, - { - .name = "LDO6", - }, - { - .name = "LDO7", - }, - { - .name = "LDO8", - }, - { - .name = "LDO9", - }, - { - .name = "LDO10", - }, -}; +enum tps65912_regulators { DCDC1, DCDC2, DCDC3, DCDC4, LDO1, LDO2, LDO3, + LDO4, LDO5, LDO6, LDO7, LDO8, LDO9, LDO10 }; + +#define TPS65912_REGULATOR(_name, _id, _of_match, _ops, _vr, _er, _lr) \ + [_id] = { \ + .name = _name, \ + .of_match = _of_match, \ + .regulators_node = "regulators", \ + .id = _id, \ + .ops = &_ops, \ + .n_voltages = 64, \ + .type = REGULATOR_VOLTAGE, \ + .owner = THIS_MODULE, \ + .vsel_reg = _vr, \ + .vsel_mask = 0x3f, \ + .enable_reg = _er, \ + .enable_mask = BIT(7), \ + .volt_table = NULL, \ + .linear_ranges = _lr, \ + .n_linear_ranges = ARRAY_SIZE(_lr), \ + } -struct tps65912_reg { - struct regulator_desc desc[TPS65912_NUM_REGULATOR]; - struct tps65912 *mfd; - struct regulator_dev *rdev[TPS65912_NUM_REGULATOR]; - struct tps_info *info[TPS65912_NUM_REGULATOR]; - /* for read/write access */ - struct mutex io_lock; - int mode; - int (*get_ctrl_reg)(int); - int dcdc_range[TPS65912_NUM_DCDC]; - int pwm_mode_reg; - int eco_reg; +static const struct regulator_linear_range tps65912_dcdc_ranges[] = { + REGULATOR_LINEAR_RANGE(500000, 0x0, 0x3f, 50000), }; static const struct regulator_linear_range tps65912_ldo_ranges[] = { - REGULATOR_LINEAR_RANGE(800000, 0, 32, 25000), - REGULATOR_LINEAR_RANGE(1650000, 33, 60, 50000), - REGULATOR_LINEAR_RANGE(3100000, 61, 63, 100000), + REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 25000), + REGULATOR_LINEAR_RANGE(1650000, 0x21, 0x3c, 50000), + REGULATOR_LINEAR_RANGE(3100000, 0x3d, 0x3f, 100000), }; -static int tps65912_get_range(struct tps65912_reg *pmic, int id) -{ - struct tps65912 *mfd = pmic->mfd; - int range; - - switch (id) { - case TPS65912_REG_DCDC1: - range = tps65912_reg_read(mfd, TPS65912_DCDC1_LIMIT); - break; - case TPS65912_REG_DCDC2: - range = tps65912_reg_read(mfd, TPS65912_DCDC2_LIMIT); - break; - case TPS65912_REG_DCDC3: - range = tps65912_reg_read(mfd, TPS65912_DCDC3_LIMIT); - break; - case TPS65912_REG_DCDC4: - range = tps65912_reg_read(mfd, TPS65912_DCDC4_LIMIT); - break; - default: - return 0; - } - - if (range >= 0) - range = (range & DCDC_LIMIT_RANGE_MASK) - >> DCDC_LIMIT_RANGE_SHIFT; - - pmic->dcdc_range[id] = range; - return range; -} - -static unsigned long tps65912_vsel_to_uv_range0(u8 vsel) -{ - unsigned long uv; - - uv = ((vsel * 12500) + 500000); - return uv; -} - -static unsigned long tps65912_vsel_to_uv_range1(u8 vsel) -{ - unsigned long uv; - - uv = ((vsel * 12500) + 700000); - return uv; -} - -static unsigned long tps65912_vsel_to_uv_range2(u8 vsel) -{ - unsigned long uv; - - uv = ((vsel * 25000) + 500000); - return uv; -} - -static unsigned long tps65912_vsel_to_uv_range3(u8 vsel) -{ - unsigned long uv; - - if (vsel == 0x3f) - uv = 3800000; - else - uv = ((vsel * 50000) + 500000); - - return uv; -} - -static int tps65912_get_ctrl_register(int id) -{ - if (id >= TPS65912_REG_DCDC1 && id <= TPS65912_REG_LDO4) - return id * 3 + TPS65912_DCDC1_AVS; - else if (id >= TPS65912_REG_LDO5 && id <= TPS65912_REG_LDO10) - return id - TPS65912_REG_LDO5 + TPS65912_LDO5; - else - return -EINVAL; -} - -static int tps65912_get_sel_register(struct tps65912_reg *pmic, int id) -{ - struct tps65912 *mfd = pmic->mfd; - int opvsel; - u8 reg = 0; - - if (id >= TPS65912_REG_DCDC1 && id <= TPS65912_REG_LDO4) { - opvsel = tps65912_reg_read(mfd, id * 3 + TPS65912_DCDC1_OP); - if (opvsel & OP_SELREG_MASK) - reg = id * 3 + TPS65912_DCDC1_AVS; - else - reg = id * 3 + TPS65912_DCDC1_OP; - } else if (id >= TPS65912_REG_LDO5 && id <= TPS65912_REG_LDO10) { - reg = id - TPS65912_REG_LDO5 + TPS65912_LDO5; - } else { - return -EINVAL; - } - - return reg; -} - -static int tps65912_get_mode_regiters(struct tps65912_reg *pmic, int id) -{ - switch (id) { - case TPS65912_REG_DCDC1: - pmic->pwm_mode_reg = TPS65912_DCDC1_CTRL; - pmic->eco_reg = TPS65912_DCDC1_AVS; - break; - case TPS65912_REG_DCDC2: - pmic->pwm_mode_reg = TPS65912_DCDC2_CTRL; - pmic->eco_reg = TPS65912_DCDC2_AVS; - break; - case TPS65912_REG_DCDC3: - pmic->pwm_mode_reg = TPS65912_DCDC3_CTRL; - pmic->eco_reg = TPS65912_DCDC3_AVS; - break; - case TPS65912_REG_DCDC4: - pmic->pwm_mode_reg = TPS65912_DCDC4_CTRL; - pmic->eco_reg = TPS65912_DCDC4_AVS; - break; - default: - return -EINVAL; - } - - return 0; -} - -static int tps65912_reg_is_enabled(struct regulator_dev *dev) -{ - struct tps65912_reg *pmic = rdev_get_drvdata(dev); - struct tps65912 *mfd = pmic->mfd; - int reg, value, id = rdev_get_id(dev); - - if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_LDO10) - return -EINVAL; - - reg = pmic->get_ctrl_reg(id); - if (reg < 0) - return reg; - - value = tps65912_reg_read(mfd, reg); - if (value < 0) - return value; - - return value & TPS65912_REG_ENABLED; -} - -static int tps65912_reg_enable(struct regulator_dev *dev) -{ - struct tps65912_reg *pmic = rdev_get_drvdata(dev); - struct tps65912 *mfd = pmic->mfd; - int id = rdev_get_id(dev); - int reg; - - if (id < TPS65912_REG_DCDC1 || id > TPS65912_REG_LDO10) - return -EINVAL; - - reg = pmic->get_ctrl_reg(id); - if (reg < 0) - return reg; - - return tps65912_set_bits(mfd, reg, TPS65912_REG_ENABLED); -} - -static int tps65912_reg_disable(struct regulator_dev *dev) -{ - struct tps65912_reg *pmic = rdev_get_drvdata(dev); - struct tps65912 *mfd = pmic->mfd; - int id = rdev_get_id(dev), reg; - - reg = pmic->get_ctrl_reg(id); - if (reg < 0) - return reg; - - return tps65912_clear_bits(mfd, reg, TPS65912_REG_ENABLED); -} - -static int tps65912_set_mode(struct regulator_dev *dev, unsigned int mode) -{ - struct tps65912_reg *pmic = rdev_get_drvdata(dev); - struct tps65912 *mfd = pmic->mfd; - int pwm_mode, eco, id = rdev_get_id(dev); - - tps65912_get_mode_regiters(pmic, id); - - pwm_mode = tps65912_reg_read(mfd, pmic->pwm_mode_reg); - eco = tps65912_reg_read(mfd, pmic->eco_reg); - - pwm_mode &= DCDCCTRL_DCDC_MODE_MASK; - eco &= DCDC_AVS_ECO_MASK; - - switch (mode) { - case REGULATOR_MODE_FAST: - /* Verify if mode alredy set */ - if (pwm_mode && !eco) - break; - tps65912_set_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK); - tps65912_clear_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK); - break; - case REGULATOR_MODE_NORMAL: - case REGULATOR_MODE_IDLE: - if (!pwm_mode && !eco) - break; - tps65912_clear_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK); - tps65912_clear_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK); - break; - case REGULATOR_MODE_STANDBY: - if (!pwm_mode && eco) - break; - tps65912_clear_bits(mfd, pmic->pwm_mode_reg, DCDCCTRL_DCDC_MODE_MASK); - tps65912_set_bits(mfd, pmic->eco_reg, DCDC_AVS_ECO_MASK); - break; - default: - return -EINVAL; - } - - return 0; -} - -static unsigned int tps65912_get_mode(struct regulator_dev *dev) -{ - struct tps65912_reg *pmic = rdev_get_drvdata(dev); - struct tps65912 *mfd = pmic->mfd; - int pwm_mode, eco, mode = 0, id = rdev_get_id(dev); - - tps65912_get_mode_regiters(pmic, id); - - pwm_mode = tps65912_reg_read(mfd, pmic->pwm_mode_reg); - eco = tps65912_reg_read(mfd, pmic->eco_reg); - - pwm_mode &= DCDCCTRL_DCDC_MODE_MASK; - eco &= DCDC_AVS_ECO_MASK; - - if (pwm_mode && !eco) - mode = REGULATOR_MODE_FAST; - else if (!pwm_mode && !eco) - mode = REGULATOR_MODE_NORMAL; - else if (!pwm_mode && eco) - mode = REGULATOR_MODE_STANDBY; - - return mode; -} - -static int tps65912_list_voltage(struct regulator_dev *dev, unsigned selector) -{ - struct tps65912_reg *pmic = rdev_get_drvdata(dev); - int range, voltage = 0, id = rdev_get_id(dev); - - if (id > TPS65912_REG_DCDC4) - return -EINVAL; - - range = pmic->dcdc_range[id]; - - switch (range) { - case 0: - /* 0.5 - 1.2875V in 12.5mV steps */ - voltage = tps65912_vsel_to_uv_range0(selector); - break; - case 1: - /* 0.7 - 1.4875V in 12.5mV steps */ - voltage = tps65912_vsel_to_uv_range1(selector); - break; - case 2: - /* 0.5 - 2.075V in 25mV steps */ - voltage = tps65912_vsel_to_uv_range2(selector); - break; - case 3: - /* 0.5 - 3.8V in 50mV steps */ - voltage = tps65912_vsel_to_uv_range3(selector); - break; - } - return voltage; -} - -static int tps65912_get_voltage_sel(struct regulator_dev *dev) -{ - struct tps65912_reg *pmic = rdev_get_drvdata(dev); - struct tps65912 *mfd = pmic->mfd; - int id = rdev_get_id(dev); - int reg, vsel; - - reg = tps65912_get_sel_register(pmic, id); - if (reg < 0) - return reg; - - vsel = tps65912_reg_read(mfd, reg); - vsel &= 0x3F; - - return vsel; -} - -static int tps65912_set_voltage_sel(struct regulator_dev *dev, - unsigned selector) -{ - struct tps65912_reg *pmic = rdev_get_drvdata(dev); - struct tps65912 *mfd = pmic->mfd; - int id = rdev_get_id(dev); - int value; - u8 reg; - - reg = tps65912_get_sel_register(pmic, id); - value = tps65912_reg_read(mfd, reg); - value &= 0xC0; - return tps65912_reg_write(mfd, reg, selector | value); -} - /* Operations permitted on DCDCx */ static struct regulator_ops tps65912_ops_dcdc = { - .is_enabled = tps65912_reg_is_enabled, - .enable = tps65912_reg_enable, - .disable = tps65912_reg_disable, - .set_mode = tps65912_set_mode, - .get_mode = tps65912_get_mode, - .get_voltage_sel = tps65912_get_voltage_sel, - .set_voltage_sel = tps65912_set_voltage_sel, - .list_voltage = tps65912_list_voltage, + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear_range, }; /* Operations permitted on LDOx */ static struct regulator_ops tps65912_ops_ldo = { - .is_enabled = tps65912_reg_is_enabled, - .enable = tps65912_reg_enable, - .disable = tps65912_reg_disable, - .get_voltage_sel = tps65912_get_voltage_sel, - .set_voltage_sel = tps65912_set_voltage_sel, - .list_voltage = regulator_list_voltage_linear_range, - .map_voltage = regulator_map_voltage_linear_range, + .is_enabled = regulator_is_enabled_regmap, + .enable = regulator_enable_regmap, + .disable = regulator_disable_regmap, + .get_voltage_sel = regulator_get_voltage_sel_regmap, + .set_voltage_sel = regulator_set_voltage_sel_regmap, + .list_voltage = regulator_list_voltage_linear_range, + .map_voltage = regulator_map_voltage_linear_range, +}; + +static const struct regulator_desc regulators[] = { + TPS65912_REGULATOR("DCDC1", DCDC1, "dcdc1", tps65912_ops_dcdc, + TPS65912_DCDC1_OP, TPS65912_DCDC1_CTRL, + tps65912_dcdc_ranges), + TPS65912_REGULATOR("DCDC2", DCDC2, "dcdc2", tps65912_ops_dcdc, + TPS65912_DCDC2_OP, TPS65912_DCDC2_CTRL, + tps65912_dcdc_ranges), + TPS65912_REGULATOR("DCDC3", DCDC3, "dcdc3", tps65912_ops_dcdc, + TPS65912_DCDC3_OP, TPS65912_DCDC3_CTRL, + tps65912_dcdc_ranges), + TPS65912_REGULATOR("DCDC4", DCDC4, "dcdc4", tps65912_ops_dcdc, + TPS65912_DCDC4_OP, TPS65912_DCDC4_CTRL, + tps65912_dcdc_ranges), + TPS65912_REGULATOR("LDO1", LDO1, "ldo1", tps65912_ops_ldo, + TPS65912_LDO1_OP, TPS65912_LDO1_AVS, + tps65912_ldo_ranges), + TPS65912_REGULATOR("LDO2", LDO2, "ldo2", tps65912_ops_ldo, + TPS65912_LDO2_OP, TPS65912_LDO2_AVS, + tps65912_ldo_ranges), + TPS65912_REGULATOR("LDO3", LDO3, "ldo3", tps65912_ops_ldo, + TPS65912_LDO3_OP, TPS65912_LDO3_AVS, + tps65912_ldo_ranges), + TPS65912_REGULATOR("LDO4", LDO4, "ldo4", tps65912_ops_ldo, + TPS65912_LDO4_OP, TPS65912_LDO4_AVS, + tps65912_ldo_ranges), + TPS65912_REGULATOR("LDO5", LDO5, "ldo5", tps65912_ops_ldo, + TPS65912_LDO5, TPS65912_LDO5, + tps65912_ldo_ranges), + TPS65912_REGULATOR("LDO6", LDO6, "ldo6", tps65912_ops_ldo, + TPS65912_LDO6, TPS65912_LDO6, + tps65912_ldo_ranges), + TPS65912_REGULATOR("LDO7", LDO7, "ldo7", tps65912_ops_ldo, + TPS65912_LDO7, TPS65912_LDO7, + tps65912_ldo_ranges), + TPS65912_REGULATOR("LDO8", LDO8, "ldo8", tps65912_ops_ldo, + TPS65912_LDO8, TPS65912_LDO8, + tps65912_ldo_ranges), + TPS65912_REGULATOR("LDO9", LDO9, "ldo9", tps65912_ops_ldo, + TPS65912_LDO9, TPS65912_LDO9, + tps65912_ldo_ranges), + TPS65912_REGULATOR("LDO10", LDO10, "ldo10", tps65912_ops_ldo, + TPS65912_LDO10, TPS65912_LDO10, + tps65912_ldo_ranges), }; -static int tps65912_probe(struct platform_device *pdev) +static int tps65912_regulator_probe(struct platform_device *pdev) { - struct tps65912 *tps65912 = dev_get_drvdata(pdev->dev.parent); + struct tps65912 *tps = dev_get_drvdata(pdev->dev.parent); struct regulator_config config = { }; - struct tps_info *info; - struct regulator_init_data *reg_data; struct regulator_dev *rdev; - struct tps65912_reg *pmic; - struct tps65912_board *pmic_plat_data; int i; - pmic_plat_data = dev_get_platdata(tps65912->dev); - if (!pmic_plat_data) - return -EINVAL; + platform_set_drvdata(pdev, tps); - reg_data = pmic_plat_data->tps65912_pmic_init_data; + config.dev = &pdev->dev; + config.driver_data = tps; + config.dev->of_node = tps->dev->of_node; + config.regmap = tps->regmap; - pmic = devm_kzalloc(&pdev->dev, sizeof(*pmic), GFP_KERNEL); - if (!pmic) - return -ENOMEM; - - mutex_init(&pmic->io_lock); - pmic->mfd = tps65912; - platform_set_drvdata(pdev, pmic); - - pmic->get_ctrl_reg = &tps65912_get_ctrl_register; - info = tps65912_regs; - - for (i = 0; i < TPS65912_NUM_REGULATOR; i++, info++, reg_data++) { - int range = 0; - /* Register the regulators */ - pmic->info[i] = info; - - pmic->desc[i].name = info->name; - pmic->desc[i].id = i; - pmic->desc[i].n_voltages = 64; - if (i > TPS65912_REG_DCDC4) { - pmic->desc[i].ops = &tps65912_ops_ldo; - pmic->desc[i].linear_ranges = tps65912_ldo_ranges; - pmic->desc[i].n_linear_ranges = - ARRAY_SIZE(tps65912_ldo_ranges); - } else { - pmic->desc[i].ops = &tps65912_ops_dcdc; - } - pmic->desc[i].type = REGULATOR_VOLTAGE; - pmic->desc[i].owner = THIS_MODULE; - range = tps65912_get_range(pmic, i); - - config.dev = tps65912->dev; - config.init_data = reg_data; - config.driver_data = pmic; - - rdev = devm_regulator_register(&pdev->dev, &pmic->desc[i], + for (i = 0; i < ARRAY_SIZE(regulators); i++) { + rdev = devm_regulator_register(&pdev->dev, ®ulators[i], &config); if (IS_ERR(rdev)) { - dev_err(tps65912->dev, - "failed to register %s regulator\n", + dev_err(tps->dev, "failed to register %s regulator\n", pdev->name); return PTR_ERR(rdev); } - - /* Save regulator for cleanup */ - pmic->rdev[i] = rdev; } + return 0; } -static struct platform_driver tps65912_driver = { +static const struct platform_device_id tps65912_regulator_id_table[] = { + { "tps65912-regulator", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(platform, tps65912_regulator_id_table); + +static struct platform_driver tps65912_regulator_driver = { .driver = { - .name = "tps65912-pmic", + .name = "tps65912-regulator", }, - .probe = tps65912_probe, + .probe = tps65912_regulator_probe, + .id_table = tps65912_regulator_id_table, }; +module_platform_driver(tps65912_regulator_driver); -static int __init tps65912_init(void) -{ - return platform_driver_register(&tps65912_driver); -} -subsys_initcall(tps65912_init); - -static void __exit tps65912_cleanup(void) -{ - platform_driver_unregister(&tps65912_driver); -} -module_exit(tps65912_cleanup); - -MODULE_AUTHOR("Margarita Olaya Cabrera "); +MODULE_AUTHOR("Andrew F. Davis "); MODULE_DESCRIPTION("TPS65912 voltage regulator driver"); MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:tps65912-pmic"); diff --git a/drivers/regulator/vexpress-regulator.c b/drivers/regulator/vexpress-regulator.c new file mode 100644 index 000000000..c810cbbd4 --- /dev/null +++ b/drivers/regulator/vexpress-regulator.c @@ -0,0 +1,121 @@ +/* + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Copyright (C) 2012 ARM Limited + */ + +#define DRVNAME "vexpress-regulator" +#define pr_fmt(fmt) DRVNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include +#include + +struct vexpress_regulator { + struct regulator_desc desc; + struct regulator_dev *regdev; + struct regmap *regmap; +}; + +static int vexpress_regulator_get_voltage(struct regulator_dev *regdev) +{ + struct vexpress_regulator *reg = rdev_get_drvdata(regdev); + u32 uV; + int err = regmap_read(reg->regmap, 0, &uV); + + return err ? err : uV; +} + +static int vexpress_regulator_set_voltage(struct regulator_dev *regdev, + int min_uV, int max_uV, unsigned *selector) +{ + struct vexpress_regulator *reg = rdev_get_drvdata(regdev); + + return regmap_write(reg->regmap, 0, min_uV); +} + +static struct regulator_ops vexpress_regulator_ops_ro = { + .get_voltage = vexpress_regulator_get_voltage, +}; + +static struct regulator_ops vexpress_regulator_ops = { + .get_voltage = vexpress_regulator_get_voltage, + .set_voltage = vexpress_regulator_set_voltage, +}; + +static int vexpress_regulator_probe(struct platform_device *pdev) +{ + struct vexpress_regulator *reg; + struct regulator_init_data *init_data; + struct regulator_config config = { }; + + reg = devm_kzalloc(&pdev->dev, sizeof(*reg), GFP_KERNEL); + if (!reg) + return -ENOMEM; + + reg->regmap = devm_regmap_init_vexpress_config(&pdev->dev); + if (IS_ERR(reg->regmap)) + return PTR_ERR(reg->regmap); + + reg->desc.name = dev_name(&pdev->dev); + reg->desc.type = REGULATOR_VOLTAGE; + reg->desc.owner = THIS_MODULE; + reg->desc.continuous_voltage_range = true; + + init_data = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node, + ®->desc); + if (!init_data) + return -EINVAL; + + init_data->constraints.apply_uV = 0; + if (init_data->constraints.min_uV && init_data->constraints.max_uV) + reg->desc.ops = &vexpress_regulator_ops; + else + reg->desc.ops = &vexpress_regulator_ops_ro; + + config.dev = &pdev->dev; + config.init_data = init_data; + config.driver_data = reg; + config.of_node = pdev->dev.of_node; + + reg->regdev = devm_regulator_register(&pdev->dev, ®->desc, &config); + if (IS_ERR(reg->regdev)) + return PTR_ERR(reg->regdev); + + platform_set_drvdata(pdev, reg); + + return 0; +} + +static const struct of_device_id vexpress_regulator_of_match[] = { + { .compatible = "arm,vexpress-volt", }, + { } +}; +MODULE_DEVICE_TABLE(of, vexpress_regulator_of_match); + +static struct platform_driver vexpress_regulator_driver = { + .probe = vexpress_regulator_probe, + .driver = { + .name = DRVNAME, + .of_match_table = vexpress_regulator_of_match, + }, +}; + +module_platform_driver(vexpress_regulator_driver); + +MODULE_AUTHOR("Pawel Moll "); +MODULE_DESCRIPTION("Versatile Express regulator"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:vexpress-regulator"); diff --git a/drivers/regulator/vexpress.c b/drivers/regulator/vexpress.c deleted file mode 100644 index c810cbbd4..000000000 --- a/drivers/regulator/vexpress.c +++ /dev/null @@ -1,121 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * Copyright (C) 2012 ARM Limited - */ - -#define DRVNAME "vexpress-regulator" -#define pr_fmt(fmt) DRVNAME ": " fmt - -#include -#include -#include -#include -#include -#include -#include -#include - -struct vexpress_regulator { - struct regulator_desc desc; - struct regulator_dev *regdev; - struct regmap *regmap; -}; - -static int vexpress_regulator_get_voltage(struct regulator_dev *regdev) -{ - struct vexpress_regulator *reg = rdev_get_drvdata(regdev); - u32 uV; - int err = regmap_read(reg->regmap, 0, &uV); - - return err ? err : uV; -} - -static int vexpress_regulator_set_voltage(struct regulator_dev *regdev, - int min_uV, int max_uV, unsigned *selector) -{ - struct vexpress_regulator *reg = rdev_get_drvdata(regdev); - - return regmap_write(reg->regmap, 0, min_uV); -} - -static struct regulator_ops vexpress_regulator_ops_ro = { - .get_voltage = vexpress_regulator_get_voltage, -}; - -static struct regulator_ops vexpress_regulator_ops = { - .get_voltage = vexpress_regulator_get_voltage, - .set_voltage = vexpress_regulator_set_voltage, -}; - -static int vexpress_regulator_probe(struct platform_device *pdev) -{ - struct vexpress_regulator *reg; - struct regulator_init_data *init_data; - struct regulator_config config = { }; - - reg = devm_kzalloc(&pdev->dev, sizeof(*reg), GFP_KERNEL); - if (!reg) - return -ENOMEM; - - reg->regmap = devm_regmap_init_vexpress_config(&pdev->dev); - if (IS_ERR(reg->regmap)) - return PTR_ERR(reg->regmap); - - reg->desc.name = dev_name(&pdev->dev); - reg->desc.type = REGULATOR_VOLTAGE; - reg->desc.owner = THIS_MODULE; - reg->desc.continuous_voltage_range = true; - - init_data = of_get_regulator_init_data(&pdev->dev, pdev->dev.of_node, - ®->desc); - if (!init_data) - return -EINVAL; - - init_data->constraints.apply_uV = 0; - if (init_data->constraints.min_uV && init_data->constraints.max_uV) - reg->desc.ops = &vexpress_regulator_ops; - else - reg->desc.ops = &vexpress_regulator_ops_ro; - - config.dev = &pdev->dev; - config.init_data = init_data; - config.driver_data = reg; - config.of_node = pdev->dev.of_node; - - reg->regdev = devm_regulator_register(&pdev->dev, ®->desc, &config); - if (IS_ERR(reg->regdev)) - return PTR_ERR(reg->regdev); - - platform_set_drvdata(pdev, reg); - - return 0; -} - -static const struct of_device_id vexpress_regulator_of_match[] = { - { .compatible = "arm,vexpress-volt", }, - { } -}; -MODULE_DEVICE_TABLE(of, vexpress_regulator_of_match); - -static struct platform_driver vexpress_regulator_driver = { - .probe = vexpress_regulator_probe, - .driver = { - .name = DRVNAME, - .of_match_table = vexpress_regulator_of_match, - }, -}; - -module_platform_driver(vexpress_regulator_driver); - -MODULE_AUTHOR("Pawel Moll "); -MODULE_DESCRIPTION("Versatile Express regulator"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:vexpress-regulator"); -- cgit v1.2.3-54-g00ecf