| /* |
| * AXP20x regulators driver. |
| * |
| * Copyright (C) 2013 Carlo Caione <carlo@caione.org> |
| * |
| * This file is subject to the terms and conditions of the GNU General |
| * Public License. See the file "COPYING" in the main directory of this |
| * archive for more details. |
| * |
| * 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. |
| */ |
| |
| #include <linux/err.h> |
| #include <linux/init.h> |
| #include <linux/module.h> |
| #include <linux/of.h> |
| #include <linux/of_device.h> |
| #include <linux/platform_device.h> |
| #include <linux/regmap.h> |
| #include <linux/mfd/axp20x.h> |
| #include <linux/regulator/driver.h> |
| #include <linux/regulator/of_regulator.h> |
| |
| #define AXP20X_IO_ENABLED 0x03 |
| #define AXP20X_IO_DISABLED 0x07 |
| |
| #define AXP22X_IO_ENABLED 0x03 |
| #define AXP22X_IO_DISABLED 0x04 |
| |
| #define AXP20X_WORKMODE_DCDC2_MASK BIT(2) |
| #define AXP20X_WORKMODE_DCDC3_MASK BIT(1) |
| #define AXP22X_WORKMODE_DCDCX_MASK(x) BIT(x) |
| |
| #define AXP20X_FREQ_DCDC_MASK 0x0f |
| |
| #define AXP22X_MISC_N_VBUSEN_FUNC BIT(4) |
| |
| #define AXP_DESC_IO(_family, _id, _match, _supply, _min, _max, _step, _vreg, \ |
| _vmask, _ereg, _emask, _enable_val, _disable_val) \ |
| [_family##_##_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), \ |
| .enable_val = (_enable_val), \ |
| .disable_val = (_disable_val), \ |
| .ops = &axp20x_ops, \ |
| } |
| |
| #define AXP_DESC(_family, _id, _match, _supply, _min, _max, _step, _vreg, \ |
| _vmask, _ereg, _emask) \ |
| [_family##_##_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, \ |
| } |
| |
| #define AXP_DESC_SW(_family, _id, _match, _supply, _ereg, _emask) \ |
| [_family##_##_id] = { \ |
| .name = (_match), \ |
| .supply_name = (_supply), \ |
| .of_match = of_match_ptr(_match), \ |
| .regulators_node = of_match_ptr("regulators"), \ |
| .type = REGULATOR_VOLTAGE, \ |
| .id = _family##_##_id, \ |
| .owner = THIS_MODULE, \ |
| .enable_reg = (_ereg), \ |
| .enable_mask = (_emask), \ |
| .ops = &axp20x_ops_sw, \ |
| } |
| |
| #define AXP_DESC_FIXED(_family, _id, _match, _supply, _volt) \ |
| [_family##_##_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 = 1, \ |
| .owner = THIS_MODULE, \ |
| .min_uV = (_volt) * 1000, \ |
| .ops = &axp20x_ops_fixed \ |
| } |
| |
| #define AXP_DESC_RANGES(_family, _id, _match, _supply, _ranges, _n_voltages, \ |
| _vreg, _vmask, _ereg, _emask) \ |
| [_family##_##_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 = (_n_voltages), \ |
| .owner = THIS_MODULE, \ |
| .vsel_reg = (_vreg), \ |
| .vsel_mask = (_vmask), \ |
| .enable_reg = (_ereg), \ |
| .enable_mask = (_emask), \ |
| .linear_ranges = (_ranges), \ |
| .n_linear_ranges = ARRAY_SIZE(_ranges), \ |
| .ops = &axp20x_ops_range, \ |
| } |
| |
| static const struct regulator_ops axp20x_ops_fixed = { |
| .list_voltage = regulator_list_voltage_linear, |
| }; |
| |
| static const 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_linear_range, |
| .enable = regulator_enable_regmap, |
| .disable = regulator_disable_regmap, |
| .is_enabled = regulator_is_enabled_regmap, |
| }; |
| |
| static const struct regulator_ops axp20x_ops = { |
| .set_voltage_sel = regulator_set_voltage_sel_regmap, |
| .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_ops axp20x_ops_sw = { |
| .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), |
| AXP_DESC(AXP20X, DCDC3, "dcdc3", "vin3", 700, 3500, 25, |
| AXP20X_DCDC3_V_OUT, 0x7f, AXP20X_PWR_OUT_CTRL, 0x02), |
| AXP_DESC_FIXED(AXP20X, LDO1, "ldo1", "acin", 1300), |
| AXP_DESC(AXP20X, LDO2, "ldo2", "ldo24in", 1800, 3300, 100, |
| 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_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), |
| }; |
| |
| static const struct regulator_desc axp22x_regulators[] = { |
| AXP_DESC(AXP22X, DCDC1, "dcdc1", "vin1", 1600, 3400, 100, |
| AXP22X_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(1)), |
| AXP_DESC(AXP22X, DCDC2, "dcdc2", "vin2", 600, 1540, 20, |
| AXP22X_DCDC2_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(2)), |
| AXP_DESC(AXP22X, DCDC3, "dcdc3", "vin3", 600, 1860, 20, |
| AXP22X_DCDC3_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(3)), |
| AXP_DESC(AXP22X, DCDC4, "dcdc4", "vin4", 600, 1540, 20, |
| AXP22X_DCDC4_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(4)), |
| 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, 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)), |
| AXP_DESC(AXP22X, ALDO1, "aldo1", "aldoin", 700, 3300, 100, |
| AXP22X_ALDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(6)), |
| AXP_DESC(AXP22X, ALDO2, "aldo2", "aldoin", 700, 3300, 100, |
| AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(7)), |
| AXP_DESC(AXP22X, ALDO3, "aldo3", "aldoin", 700, 3300, 100, |
| AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(7)), |
| AXP_DESC(AXP22X, DLDO1, "dldo1", "dldoin", 700, 3300, 100, |
| AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(3)), |
| AXP_DESC(AXP22X, DLDO2, "dldo2", "dldoin", 700, 3300, 100, |
| AXP22X_DLDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(4)), |
| AXP_DESC(AXP22X, DLDO3, "dldo3", "dldoin", 700, 3300, 100, |
| AXP22X_DLDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)), |
| AXP_DESC(AXP22X, DLDO4, "dldo4", "dldoin", 700, 3300, 100, |
| AXP22X_DLDO4_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(6)), |
| AXP_DESC(AXP22X, ELDO1, "eldo1", "eldoin", 700, 3300, 100, |
| AXP22X_ELDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(0)), |
| AXP_DESC(AXP22X, ELDO2, "eldo2", "eldoin", 700, 3300, 100, |
| 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)), |
| /* 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), |
| /* 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), |
| }; |
| |
| static const struct regulator_desc axp22x_drivevbus_regulator = { |
| .name = "drivevbus", |
| .supply_name = "drivevbus", |
| .of_match = of_match_ptr("drivevbus"), |
| .regulators_node = of_match_ptr("regulators"), |
| .type = REGULATOR_VOLTAGE, |
| .owner = THIS_MODULE, |
| .enable_reg = AXP20X_VBUS_IPSOUT_MGMT, |
| .enable_mask = BIT(2), |
| .ops = &axp20x_ops_sw, |
| }; |
| |
| static const struct regulator_linear_range axp803_dcdc234_ranges[] = { |
| REGULATOR_LINEAR_RANGE(500000, 0x0, 0x46, 10000), |
| REGULATOR_LINEAR_RANGE(1220000, 0x47, 0x4b, 20000), |
| }; |
| |
| static const struct regulator_linear_range axp803_dcdc5_ranges[] = { |
| REGULATOR_LINEAR_RANGE(800000, 0x0, 0x20, 10000), |
| REGULATOR_LINEAR_RANGE(1140000, 0x21, 0x44, 20000), |
| }; |
| |
| static const struct regulator_linear_range axp803_dcdc6_ranges[] = { |
| REGULATOR_LINEAR_RANGE(600000, 0x0, 0x32, 10000), |
| REGULATOR_LINEAR_RANGE(1120000, 0x33, 0x47, 20000), |
| }; |
| |
| /* AXP806's CLDO2 and AXP809's DLDO1 shares the same range */ |
| static const struct regulator_linear_range axp803_dldo2_ranges[] = { |
| REGULATOR_LINEAR_RANGE(700000, 0x0, 0x1a, 100000), |
| REGULATOR_LINEAR_RANGE(3400000, 0x1b, 0x1f, 200000), |
| }; |
| |
| static const struct regulator_desc axp803_regulators[] = { |
| AXP_DESC(AXP803, DCDC1, "dcdc1", "vin1", 1600, 3400, 100, |
| AXP803_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(0)), |
| AXP_DESC_RANGES(AXP803, DCDC2, "dcdc2", "vin2", axp803_dcdc234_ranges, |
| 76, AXP803_DCDC2_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1, |
| BIT(1)), |
| AXP_DESC_RANGES(AXP803, DCDC3, "dcdc3", "vin3", axp803_dcdc234_ranges, |
| 76, AXP803_DCDC3_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1, |
| BIT(2)), |
| AXP_DESC_RANGES(AXP803, DCDC4, "dcdc4", "vin4", axp803_dcdc234_ranges, |
| 76, AXP803_DCDC4_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1, |
| BIT(3)), |
| AXP_DESC_RANGES(AXP803, DCDC5, "dcdc5", "vin5", axp803_dcdc5_ranges, |
| 68, AXP803_DCDC5_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1, |
| BIT(4)), |
| AXP_DESC_RANGES(AXP803, DCDC6, "dcdc6", "vin6", axp803_dcdc6_ranges, |
| 72, AXP803_DCDC6_V_OUT, 0x7f, AXP22X_PWR_OUT_CTRL1, |
| BIT(5)), |
| /* secondary switchable output of DCDC1 */ |
| AXP_DESC_SW(AXP803, DC1SW, "dc1sw", NULL, AXP22X_PWR_OUT_CTRL2, |
| BIT(7)), |
| AXP_DESC(AXP803, ALDO1, "aldo1", "aldoin", 700, 3300, 100, |
| AXP22X_ALDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(5)), |
| AXP_DESC(AXP803, ALDO2, "aldo2", "aldoin", 700, 3300, 100, |
| AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(6)), |
| AXP_DESC(AXP803, ALDO3, "aldo3", "aldoin", 700, 3300, 100, |
| AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL3, BIT(7)), |
| AXP_DESC(AXP803, DLDO1, "dldo1", "dldoin", 700, 3300, 100, |
| AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(3)), |
| AXP_DESC_RANGES(AXP803, DLDO2, "dldo2", "dldoin", axp803_dldo2_ranges, |
| 32, AXP22X_DLDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, |
| BIT(4)), |
| AXP_DESC(AXP803, DLDO3, "dldo3", "dldoin", 700, 3300, 100, |
| AXP22X_DLDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)), |
| AXP_DESC(AXP803, DLDO4, "dldo4", "dldoin", 700, 3300, 100, |
| AXP22X_DLDO4_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(6)), |
| AXP_DESC(AXP803, ELDO1, "eldo1", "eldoin", 700, 1900, 50, |
| AXP22X_ELDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(0)), |
| AXP_DESC(AXP803, ELDO2, "eldo2", "eldoin", 700, 1900, 50, |
| AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)), |
| AXP_DESC(AXP803, ELDO3, "eldo3", "eldoin", 700, 1900, 50, |
| AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)), |
| AXP_DESC(AXP803, FLDO1, "fldo1", "fldoin", 700, 1450, 50, |
| AXP803_FLDO1_V_OUT, 0x0f, AXP22X_PWR_OUT_CTRL3, BIT(2)), |
| AXP_DESC(AXP803, FLDO2, "fldo2", "fldoin", 700, 1450, 50, |
| AXP803_FLDO2_V_OUT, 0x0f, AXP22X_PWR_OUT_CTRL3, BIT(3)), |
| AXP_DESC_IO(AXP803, LDO_IO0, "ldo-io0", "ips", 700, 3300, 100, |
| AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07, |
| AXP22X_IO_ENABLED, AXP22X_IO_DISABLED), |
| AXP_DESC_IO(AXP803, LDO_IO1, "ldo-io1", "ips", 700, 3300, 100, |
| AXP22X_LDO_IO1_V_OUT, 0x1f, AXP20X_GPIO1_CTRL, 0x07, |
| AXP22X_IO_ENABLED, AXP22X_IO_DISABLED), |
| AXP_DESC_FIXED(AXP803, RTC_LDO, "rtc-ldo", "ips", 3000), |
| }; |
| |
| static const struct regulator_linear_range axp806_dcdca_ranges[] = { |
| REGULATOR_LINEAR_RANGE(600000, 0x0, 0x32, 10000), |
| REGULATOR_LINEAR_RANGE(1120000, 0x33, 0x47, 20000), |
| }; |
| |
| static const struct regulator_linear_range axp806_dcdcd_ranges[] = { |
| REGULATOR_LINEAR_RANGE(600000, 0x0, 0x2d, 20000), |
| REGULATOR_LINEAR_RANGE(1600000, 0x2e, 0x3f, 100000), |
| }; |
| |
| static const struct regulator_desc axp806_regulators[] = { |
| AXP_DESC_RANGES(AXP806, DCDCA, "dcdca", "vina", axp806_dcdca_ranges, |
| 72, AXP806_DCDCA_V_CTRL, 0x7f, AXP806_PWR_OUT_CTRL1, |
| BIT(0)), |
| AXP_DESC(AXP806, DCDCB, "dcdcb", "vinb", 1000, 2550, 50, |
| AXP806_DCDCB_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(1)), |
| AXP_DESC_RANGES(AXP806, DCDCC, "dcdcc", "vinc", axp806_dcdca_ranges, |
| 72, AXP806_DCDCC_V_CTRL, 0x7f, AXP806_PWR_OUT_CTRL1, |
| BIT(2)), |
| AXP_DESC_RANGES(AXP806, DCDCD, "dcdcd", "vind", axp806_dcdcd_ranges, |
| 64, AXP806_DCDCD_V_CTRL, 0x3f, AXP806_PWR_OUT_CTRL1, |
| BIT(3)), |
| AXP_DESC(AXP806, DCDCE, "dcdce", "vine", 1100, 3400, 100, |
| AXP806_DCDCE_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(4)), |
| AXP_DESC(AXP806, ALDO1, "aldo1", "aldoin", 700, 3300, 100, |
| AXP806_ALDO1_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(5)), |
| AXP_DESC(AXP806, ALDO2, "aldo2", "aldoin", 700, 3400, 100, |
| AXP806_ALDO2_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(6)), |
| AXP_DESC(AXP806, ALDO3, "aldo3", "aldoin", 700, 3300, 100, |
| AXP806_ALDO3_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL1, BIT(7)), |
| AXP_DESC(AXP806, BLDO1, "bldo1", "bldoin", 700, 1900, 100, |
| AXP806_BLDO1_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(0)), |
| AXP_DESC(AXP806, BLDO2, "bldo2", "bldoin", 700, 1900, 100, |
| AXP806_BLDO2_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(1)), |
| AXP_DESC(AXP806, BLDO3, "bldo3", "bldoin", 700, 1900, 100, |
| AXP806_BLDO3_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(2)), |
| AXP_DESC(AXP806, BLDO4, "bldo4", "bldoin", 700, 1900, 100, |
| AXP806_BLDO4_V_CTRL, 0x0f, AXP806_PWR_OUT_CTRL2, BIT(3)), |
| AXP_DESC(AXP806, CLDO1, "cldo1", "cldoin", 700, 3300, 100, |
| AXP806_CLDO1_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2, BIT(4)), |
| AXP_DESC_RANGES(AXP806, CLDO2, "cldo2", "cldoin", axp803_dldo2_ranges, |
| 32, AXP806_CLDO2_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2, |
| BIT(5)), |
| AXP_DESC(AXP806, CLDO3, "cldo3", "cldoin", 700, 3300, 100, |
| AXP806_CLDO3_V_CTRL, 0x1f, AXP806_PWR_OUT_CTRL2, BIT(6)), |
| AXP_DESC_SW(AXP806, SW, "sw", "swin", AXP806_PWR_OUT_CTRL2, BIT(7)), |
| }; |
| |
| static const struct regulator_linear_range axp809_dcdc4_ranges[] = { |
| REGULATOR_LINEAR_RANGE(600000, 0x0, 0x2f, 20000), |
| REGULATOR_LINEAR_RANGE(1800000, 0x30, 0x38, 100000), |
| }; |
| |
| static const struct regulator_desc axp809_regulators[] = { |
| AXP_DESC(AXP809, DCDC1, "dcdc1", "vin1", 1600, 3400, 100, |
| AXP22X_DCDC1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(1)), |
| AXP_DESC(AXP809, DCDC2, "dcdc2", "vin2", 600, 1540, 20, |
| AXP22X_DCDC2_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(2)), |
| AXP_DESC(AXP809, DCDC3, "dcdc3", "vin3", 600, 1860, 20, |
| AXP22X_DCDC3_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, BIT(3)), |
| AXP_DESC_RANGES(AXP809, DCDC4, "dcdc4", "vin4", axp809_dcdc4_ranges, |
| 57, AXP22X_DCDC4_V_OUT, 0x3f, AXP22X_PWR_OUT_CTRL1, |
| BIT(4)), |
| AXP_DESC(AXP809, 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(AXP809, DC1SW, "dc1sw", NULL, AXP22X_PWR_OUT_CTRL2, |
| BIT(7)), |
| /* LDO regulator internally chained to DCDC5 */ |
| AXP_DESC(AXP809, DC5LDO, "dc5ldo", NULL, 700, 1400, 100, |
| AXP22X_DC5LDO_V_OUT, 0x7, AXP22X_PWR_OUT_CTRL1, BIT(0)), |
| AXP_DESC(AXP809, ALDO1, "aldo1", "aldoin", 700, 3300, 100, |
| AXP22X_ALDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(6)), |
| AXP_DESC(AXP809, ALDO2, "aldo2", "aldoin", 700, 3300, 100, |
| AXP22X_ALDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL1, BIT(7)), |
| AXP_DESC(AXP809, ALDO3, "aldo3", "aldoin", 700, 3300, 100, |
| AXP22X_ALDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(5)), |
| AXP_DESC_RANGES(AXP809, DLDO1, "dldo1", "dldoin", axp803_dldo2_ranges, |
| 32, AXP22X_DLDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, |
| BIT(3)), |
| AXP_DESC(AXP809, DLDO2, "dldo2", "dldoin", 700, 3300, 100, |
| AXP22X_DLDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(4)), |
| AXP_DESC(AXP809, ELDO1, "eldo1", "eldoin", 700, 3300, 100, |
| AXP22X_ELDO1_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(0)), |
| AXP_DESC(AXP809, ELDO2, "eldo2", "eldoin", 700, 3300, 100, |
| AXP22X_ELDO2_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(1)), |
| AXP_DESC(AXP809, ELDO3, "eldo3", "eldoin", 700, 3300, 100, |
| AXP22X_ELDO3_V_OUT, 0x1f, AXP22X_PWR_OUT_CTRL2, BIT(2)), |
| /* |
| * Note the datasheet only guarantees reliable operation up to |
| * 3.3V, this needs to be enforced via dts provided constraints |
| */ |
| AXP_DESC_IO(AXP809, LDO_IO0, "ldo_io0", "ips", 700, 3800, 100, |
| AXP22X_LDO_IO0_V_OUT, 0x1f, AXP20X_GPIO0_CTRL, 0x07, |
| AXP22X_IO_ENABLED, AXP22X_IO_DISABLED), |
| /* |
| * Note the datasheet only guarantees reliable operation up to |
| * 3.3V, this needs to be enforced via dts provided constraints |
| */ |
| AXP_DESC_IO(AXP809, 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(AXP809, RTC_LDO, "rtc_ldo", "ips", 1800), |
| AXP_DESC_SW(AXP809, SW, "sw", "swin", AXP22X_PWR_OUT_CTRL2, BIT(6)), |
| }; |
| |
| static int axp20x_set_dcdc_freq(struct platform_device *pdev, u32 dcdcfreq) |
| { |
| struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent); |
| unsigned int reg = AXP20X_DCDC_FREQ; |
| u32 min, max, def, step; |
| |
| switch (axp20x->variant) { |
| case AXP202_ID: |
| case AXP209_ID: |
| min = 750; |
| max = 1875; |
| def = 1500; |
| step = 75; |
| break; |
| case AXP803_ID: |
| /* |
| * AXP803 DCDC work frequency setting has the same range and |
| * step as AXP22X, but at a different register. |
| * Fall through to the check below. |
| * (See include/linux/mfd/axp20x.h) |
| */ |
| reg = AXP803_DCDC_FREQ_CTRL; |
| case AXP806_ID: |
| /* |
| * AXP806 also have DCDC work frequency setting register at a |
| * different position. |
| */ |
| if (axp20x->variant == AXP806_ID) |
| reg = AXP806_DCDC_FREQ_CTRL; |
| case AXP221_ID: |
| case AXP223_ID: |
| case AXP809_ID: |
| min = 1800; |
| max = 4050; |
| def = 3000; |
| step = 150; |
| break; |
| default: |
| dev_err(&pdev->dev, |
| "Setting DCDC frequency for unsupported AXP variant\n"); |
| return -EINVAL; |
| } |
| |
| if (dcdcfreq == 0) |
| dcdcfreq = def; |
| |
| if (dcdcfreq < min) { |
| dcdcfreq = min; |
| dev_warn(&pdev->dev, "DCDC frequency too low. Set to %ukHz\n", |
| min); |
| } |
| |
| if (dcdcfreq > max) { |
| dcdcfreq = max; |
| dev_warn(&pdev->dev, "DCDC frequency too high. Set to %ukHz\n", |
| max); |
| } |
| |
| dcdcfreq = (dcdcfreq - min) / step; |
| |
| return regmap_update_bits(axp20x->regmap, reg, |
| AXP20X_FREQ_DCDC_MASK, dcdcfreq); |
| } |
| |
| static int axp20x_regulator_parse_dt(struct platform_device *pdev) |
| { |
| struct device_node *np, *regulators; |
| int ret; |
| u32 dcdcfreq = 0; |
| |
| np = of_node_get(pdev->dev.parent->of_node); |
| if (!np) |
| return 0; |
| |
| regulators = of_get_child_by_name(np, "regulators"); |
| if (!regulators) { |
| dev_warn(&pdev->dev, "regulators node not found\n"); |
| } else { |
| of_property_read_u32(regulators, "x-powers,dcdc-freq", &dcdcfreq); |
| ret = axp20x_set_dcdc_freq(pdev, dcdcfreq); |
| if (ret < 0) { |
| dev_err(&pdev->dev, "Error setting dcdc frequency: %d\n", ret); |
| return ret; |
| } |
| |
| of_node_put(regulators); |
| } |
| |
| return 0; |
| } |
| |
| static int axp20x_set_dcdc_workmode(struct regulator_dev *rdev, int id, u32 workmode) |
| { |
| struct axp20x_dev *axp20x = rdev_get_drvdata(rdev); |
| unsigned int reg = AXP20X_DCDC_MODE; |
| unsigned int mask; |
| |
| switch (axp20x->variant) { |
| case AXP202_ID: |
| case AXP209_ID: |
| if ((id != AXP20X_DCDC2) && (id != AXP20X_DCDC3)) |
| return -EINVAL; |
| |
| mask = AXP20X_WORKMODE_DCDC2_MASK; |
| if (id == AXP20X_DCDC3) |
| mask = AXP20X_WORKMODE_DCDC3_MASK; |
| |
| workmode <<= ffs(mask) - 1; |
| break; |
| |
| case AXP806_ID: |
| reg = AXP806_DCDC_MODE_CTRL2; |
| /* |
| * AXP806 DCDC regulator IDs have the same range as AXP22X. |
| * Fall through to the check below. |
| * (See include/linux/mfd/axp20x.h) |
| */ |
| case AXP221_ID: |
| case AXP223_ID: |
| case AXP809_ID: |
| if (id < AXP22X_DCDC1 || id > AXP22X_DCDC5) |
| return -EINVAL; |
| |
| mask = AXP22X_WORKMODE_DCDCX_MASK(id - AXP22X_DCDC1); |
| workmode <<= id - AXP22X_DCDC1; |
| break; |
| |
| case AXP803_ID: |
| if (id < AXP803_DCDC1 || id > AXP803_DCDC6) |
| return -EINVAL; |
| |
| mask = AXP22X_WORKMODE_DCDCX_MASK(id - AXP803_DCDC1); |
| workmode <<= id - AXP803_DCDC1; |
| break; |
| |
| default: |
| /* should not happen */ |
| WARN_ON(1); |
| return -EINVAL; |
| } |
| |
| return regmap_update_bits(rdev->regmap, reg, mask, workmode); |
| } |
| |
| /* |
| * This function checks whether a regulator is part of a poly-phase |
| * output setup based on the registers settings. Returns true if it is. |
| */ |
| static bool axp20x_is_polyphase_slave(struct axp20x_dev *axp20x, int id) |
| { |
| u32 reg = 0; |
| |
| /* |
| * Currently in our supported AXP variants, only AXP803 and AXP806 |
| * have polyphase regulators. |
| */ |
| switch (axp20x->variant) { |
| case AXP803_ID: |
| regmap_read(axp20x->regmap, AXP803_POLYPHASE_CTRL, ®); |
| |
| switch (id) { |
| case AXP803_DCDC3: |
| return !!(reg & BIT(6)); |
| case AXP803_DCDC6: |
| return !!(reg & BIT(7)); |
| } |
| break; |
| |
| case AXP806_ID: |
| regmap_read(axp20x->regmap, AXP806_DCDC_MODE_CTRL2, ®); |
| |
| switch (id) { |
| case AXP806_DCDCB: |
| return (((reg & GENMASK(7, 6)) == BIT(6)) || |
| ((reg & GENMASK(7, 6)) == BIT(7))); |
| case AXP806_DCDCC: |
| return ((reg & GENMASK(7, 6)) == BIT(7)); |
| case AXP806_DCDCE: |
| return !!(reg & BIT(5)); |
| } |
| break; |
| |
| default: |
| return false; |
| } |
| |
| return false; |
| } |
| |
| static int axp20x_regulator_probe(struct platform_device *pdev) |
| { |
| struct regulator_dev *rdev; |
| struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent); |
| const struct regulator_desc *regulators; |
| struct regulator_config config = { |
| .dev = pdev->dev.parent, |
| .regmap = axp20x->regmap, |
| .driver_data = axp20x, |
| }; |
| int ret, i, nregulators; |
| u32 workmode; |
| const char *dcdc1_name = axp22x_regulators[AXP22X_DCDC1].name; |
| const char *dcdc5_name = axp22x_regulators[AXP22X_DCDC5].name; |
| bool drivevbus = false; |
| |
| switch (axp20x->variant) { |
| case AXP202_ID: |
| case AXP209_ID: |
| regulators = axp20x_regulators; |
| nregulators = AXP20X_REG_ID_MAX; |
| break; |
| case AXP221_ID: |
| case AXP223_ID: |
| regulators = axp22x_regulators; |
| nregulators = AXP22X_REG_ID_MAX; |
| drivevbus = of_property_read_bool(pdev->dev.parent->of_node, |
| "x-powers,drive-vbus-en"); |
| break; |
| case AXP803_ID: |
| regulators = axp803_regulators; |
| nregulators = AXP803_REG_ID_MAX; |
| break; |
| case AXP806_ID: |
| regulators = axp806_regulators; |
| nregulators = AXP806_REG_ID_MAX; |
| break; |
| case AXP809_ID: |
| regulators = axp809_regulators; |
| nregulators = AXP809_REG_ID_MAX; |
| break; |
| default: |
| dev_err(&pdev->dev, "Unsupported AXP variant: %ld\n", |
| axp20x->variant); |
| return -EINVAL; |
| } |
| |
| /* This only sets the dcdc freq. Ignore any errors */ |
| axp20x_regulator_parse_dt(pdev); |
| |
| for (i = 0; i < nregulators; i++) { |
| const struct regulator_desc *desc = ®ulators[i]; |
| struct regulator_desc *new_desc; |
| |
| /* |
| * If this regulator is a slave in a poly-phase setup, |
| * skip it, as its controls are bound to the master |
| * regulator and won't work. |
| */ |
| if (axp20x_is_polyphase_slave(axp20x, i)) |
| continue; |
| |
| /* |
| * Regulators DC1SW and DC5LDO are connected internally, |
| * so we have to handle their supply names separately. |
| * |
| * We always register the regulators in proper sequence, |
| * so the supply names are correctly read. See the last |
| * part of this loop to see where we save the DT defined |
| * name. |
| */ |
| if ((regulators == axp22x_regulators && i == AXP22X_DC1SW) || |
| (regulators == axp803_regulators && i == AXP803_DC1SW) || |
| (regulators == axp809_regulators && i == AXP809_DC1SW)) { |
| new_desc = devm_kzalloc(&pdev->dev, sizeof(*desc), |
| GFP_KERNEL); |
| *new_desc = regulators[i]; |
| new_desc->supply_name = dcdc1_name; |
| desc = new_desc; |
| } |
| |
| if ((regulators == axp22x_regulators && i == AXP22X_DC5LDO) || |
| (regulators == axp809_regulators && i == AXP809_DC5LDO)) { |
| new_desc = devm_kzalloc(&pdev->dev, sizeof(*desc), |
| GFP_KERNEL); |
| *new_desc = regulators[i]; |
| new_desc->supply_name = dcdc5_name; |
| desc = new_desc; |
| } |
| |
| rdev = devm_regulator_register(&pdev->dev, desc, &config); |
| if (IS_ERR(rdev)) { |
| dev_err(&pdev->dev, "Failed to register %s\n", |
| regulators[i].name); |
| |
| return PTR_ERR(rdev); |
| } |
| |
| ret = of_property_read_u32(rdev->dev.of_node, |
| "x-powers,dcdc-workmode", |
| &workmode); |
| if (!ret) { |
| if (axp20x_set_dcdc_workmode(rdev, i, workmode)) |
| dev_err(&pdev->dev, "Failed to set workmode on %s\n", |
| rdev->desc->name); |
| } |
| |
| /* |
| * Save AXP22X DCDC1 / DCDC5 regulator names for later. |
| */ |
| if ((regulators == axp22x_regulators && i == AXP22X_DCDC1) || |
| (regulators == axp809_regulators && i == AXP809_DCDC1)) |
| of_property_read_string(rdev->dev.of_node, |
| "regulator-name", |
| &dcdc1_name); |
| |
| if ((regulators == axp22x_regulators && i == AXP22X_DCDC5) || |
| (regulators == axp809_regulators && i == AXP809_DCDC5)) |
| of_property_read_string(rdev->dev.of_node, |
| "regulator-name", |
| &dcdc5_name); |
| } |
| |
| if (drivevbus) { |
| /* Change N_VBUSEN sense pin to DRIVEVBUS output pin */ |
| regmap_update_bits(axp20x->regmap, AXP20X_OVER_TMP, |
| AXP22X_MISC_N_VBUSEN_FUNC, 0); |
| rdev = devm_regulator_register(&pdev->dev, |
| &axp22x_drivevbus_regulator, |
| &config); |
| if (IS_ERR(rdev)) { |
| dev_err(&pdev->dev, "Failed to register drivevbus\n"); |
| return PTR_ERR(rdev); |
| } |
| } |
| |
| return 0; |
| } |
| |
| static struct platform_driver axp20x_regulator_driver = { |
| .probe = axp20x_regulator_probe, |
| .driver = { |
| .name = "axp20x-regulator", |
| }, |
| }; |
| |
| module_platform_driver(axp20x_regulator_driver); |
| |
| MODULE_LICENSE("GPL v2"); |
| MODULE_AUTHOR("Carlo Caione <carlo@caione.org>"); |
| MODULE_DESCRIPTION("Regulator Driver for AXP20X PMIC"); |
| MODULE_ALIAS("platform:axp20x-regulator"); |