| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Matti Vaittinen | 5412 | 99.34% | 10 | 55.56% |
| Axel Lin | 35 | 0.64% | 7 | 38.89% |
| Geert Uytterhoeven | 1 | 0.02% | 1 | 5.56% |
| Total | 5448 | 18 |
// SPDX-License-Identifier: GPL-2.0 // Copyright (C) 2018 ROHM Semiconductors // bd71837-regulator.c ROHM BD71837MWV/BD71847MWV regulator driver #include <linux/delay.h> #include <linux/err.h> #include <linux/gpio.h> #include <linux/interrupt.h> #include <linux/kernel.h> #include <linux/mfd/rohm-bd718x7.h> #include <linux/module.h> #include <linux/of.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> #include <linux/regulator/of_regulator.h> #include <linux/slab.h> /* * BUCK1/2/3/4 * BUCK1RAMPRATE[1:0] BUCK1 DVS ramp rate setting * 00: 10.00mV/usec 10mV 1uS * 01: 5.00mV/usec 10mV 2uS * 10: 2.50mV/usec 10mV 4uS * 11: 1.25mV/usec 10mV 8uS */ static int bd718xx_buck1234_set_ramp_delay(struct regulator_dev *rdev, int ramp_delay) { int id = rdev_get_id(rdev); unsigned int ramp_value; dev_dbg(&rdev->dev, "Buck[%d] Set Ramp = %d\n", id + 1, ramp_delay); switch (ramp_delay) { case 1 ... 1250: ramp_value = BUCK_RAMPRATE_1P25MV; break; case 1251 ... 2500: ramp_value = BUCK_RAMPRATE_2P50MV; break; case 2501 ... 5000: ramp_value = BUCK_RAMPRATE_5P00MV; break; case 5001 ... 10000: ramp_value = BUCK_RAMPRATE_10P00MV; break; default: ramp_value = BUCK_RAMPRATE_10P00MV; dev_err(&rdev->dev, "%s: ramp_delay: %d not supported, setting 10000mV//us\n", rdev->desc->name, ramp_delay); } return regmap_update_bits(rdev->regmap, BD718XX_REG_BUCK1_CTRL + id, BUCK_RAMPRATE_MASK, ramp_value << 6); } /* Bucks 1 to 4 support DVS. PWM mode is used when voltage is changed. * Bucks 5 to 8 and LDOs can use PFM and must be disabled when voltage * is changed. Hence we return -EBUSY for these if voltage is changed * when BUCK/LDO is enabled. */ static int bd718xx_set_voltage_sel_restricted(struct regulator_dev *rdev, unsigned int sel) { if (regulator_is_enabled_regmap(rdev)) return -EBUSY; return regulator_set_voltage_sel_regmap(rdev, sel); } static int bd718xx_set_voltage_sel_pickable_restricted( struct regulator_dev *rdev, unsigned int sel) { if (regulator_is_enabled_regmap(rdev)) return -EBUSY; return regulator_set_voltage_sel_pickable_regmap(rdev, sel); } static const struct regulator_ops bd718xx_pickable_range_ldo_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_pickable_linear_range, .set_voltage_sel = bd718xx_set_voltage_sel_pickable_restricted, .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap, }; static const struct regulator_ops bd718xx_pickable_range_buck_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_pickable_linear_range, .set_voltage_sel = bd718xx_set_voltage_sel_pickable_restricted, .get_voltage_sel = regulator_get_voltage_sel_pickable_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, }; static const struct regulator_ops bd718xx_ldo_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear_range, .set_voltage_sel = bd718xx_set_voltage_sel_restricted, .get_voltage_sel = regulator_get_voltage_sel_regmap, }; static const struct regulator_ops bd718xx_ldo_regulator_nolinear_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_table, .set_voltage_sel = bd718xx_set_voltage_sel_restricted, .get_voltage_sel = regulator_get_voltage_sel_regmap, }; static const struct regulator_ops bd718xx_buck_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear_range, .set_voltage_sel = bd718xx_set_voltage_sel_restricted, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, }; static const struct regulator_ops bd718xx_buck_regulator_nolinear_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_table, .map_voltage = regulator_map_voltage_ascend, .set_voltage_sel = bd718xx_set_voltage_sel_restricted, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, }; static const struct regulator_ops bd718xx_dvs_buck_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear_range, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, .set_voltage_time_sel = regulator_set_voltage_time_sel, .set_ramp_delay = bd718xx_buck1234_set_ramp_delay, }; /* * BD71837 BUCK1/2/3/4 * BD71847 BUCK1/2 * 0.70 to 1.30V (10mV step) */ static const struct regulator_linear_range bd718xx_dvs_buck_volts[] = { REGULATOR_LINEAR_RANGE(700000, 0x00, 0x3C, 10000), REGULATOR_LINEAR_RANGE(1300000, 0x3D, 0x3F, 0), }; /* * BD71837 BUCK5 * 0.7V to 1.35V (range 0) * and * 0.675 to 1.325 (range 1) */ static const struct regulator_linear_range bd71837_buck5_volts[] = { /* Ranges when VOLT_SEL bit is 0 */ REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000), REGULATOR_LINEAR_RANGE(1200000, 0x06, 0x07, 150000), /* Ranges when VOLT_SEL bit is 1 */ REGULATOR_LINEAR_RANGE(675000, 0x0, 0x3, 100000), REGULATOR_LINEAR_RANGE(1025000, 0x4, 0x5, 50000), REGULATOR_LINEAR_RANGE(1175000, 0x6, 0x7, 150000), }; /* * Range selector for first 3 linear ranges is 0x0 * and 0x1 for last 3 ranges. */ static const unsigned int bd71837_buck5_volt_range_sel[] = { 0x0, 0x0, 0x0, 0x80, 0x80, 0x80 }; /* * BD71847 BUCK3 */ static const struct regulator_linear_range bd71847_buck3_volts[] = { /* Ranges when VOLT_SEL bits are 00 */ REGULATOR_LINEAR_RANGE(700000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(1050000, 0x04, 0x05, 50000), REGULATOR_LINEAR_RANGE(1200000, 0x06, 0x07, 150000), /* Ranges when VOLT_SEL bits are 01 */ REGULATOR_LINEAR_RANGE(550000, 0x0, 0x7, 50000), /* Ranges when VOLT_SEL bits are 11 */ REGULATOR_LINEAR_RANGE(675000, 0x0, 0x3, 100000), REGULATOR_LINEAR_RANGE(1025000, 0x4, 0x5, 50000), REGULATOR_LINEAR_RANGE(1175000, 0x6, 0x7, 150000), }; static const unsigned int bd71847_buck3_volt_range_sel[] = { 0x0, 0x0, 0x0, 0x40, 0x80, 0x80, 0x80 }; static const struct regulator_linear_range bd71847_buck4_volts[] = { REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(2600000, 0x00, 0x03, 100000), }; static const unsigned int bd71847_buck4_volt_range_sel[] = { 0x0, 0x40 }; /* * BUCK6 * 3.0V to 3.3V (step 100mV) */ static const struct regulator_linear_range bd71837_buck6_volts[] = { REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), }; /* * BD71837 BUCK7 * BD71847 BUCK5 * 000 = 1.605V * 001 = 1.695V * 010 = 1.755V * 011 = 1.8V (Initial) * 100 = 1.845V * 101 = 1.905V * 110 = 1.95V * 111 = 1.995V */ static const unsigned int bd718xx_3rd_nodvs_buck_volts[] = { 1605000, 1695000, 1755000, 1800000, 1845000, 1905000, 1950000, 1995000 }; /* * BUCK8 * 0.8V to 1.40V (step 10mV) */ static const struct regulator_linear_range bd718xx_4th_nodvs_buck_volts[] = { REGULATOR_LINEAR_RANGE(800000, 0x00, 0x3C, 10000), }; /* * LDO1 * 3.0 to 3.3V (100mV step) */ static const struct regulator_linear_range bd718xx_ldo1_volts[] = { REGULATOR_LINEAR_RANGE(3000000, 0x00, 0x03, 100000), REGULATOR_LINEAR_RANGE(1600000, 0x00, 0x03, 100000), }; static const unsigned int bd718xx_ldo1_volt_range_sel[] = { 0x0, 0x20 }; /* * LDO2 * 0.8 or 0.9V */ static const unsigned int ldo_2_volts[] = { 900000, 800000 }; /* * LDO3 * 1.8 to 3.3V (100mV step) */ static const struct regulator_linear_range bd718xx_ldo3_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), }; /* * LDO4 * 0.9 to 1.8V (100mV step) */ static const struct regulator_linear_range bd718xx_ldo4_volts[] = { REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000), }; /* * LDO5 for BD71837 * 1.8 to 3.3V (100mV step) */ static const struct regulator_linear_range bd71837_ldo5_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), }; /* * LDO5 for BD71837 * 1.8 to 3.3V (100mV step) */ static const struct regulator_linear_range bd71847_ldo5_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), REGULATOR_LINEAR_RANGE(800000, 0x00, 0x0F, 100000), }; static const unsigned int bd71847_ldo5_volt_range_sel[] = { 0x0, 0x20 }; /* * LDO6 * 0.9 to 1.8V (100mV step) */ static const struct regulator_linear_range bd718xx_ldo6_volts[] = { REGULATOR_LINEAR_RANGE(900000, 0x00, 0x09, 100000), }; /* * LDO7 * 1.8 to 3.3V (100mV step) */ static const struct regulator_linear_range bd71837_ldo7_volts[] = { REGULATOR_LINEAR_RANGE(1800000, 0x00, 0x0F, 100000), }; struct reg_init { unsigned int reg; unsigned int mask; unsigned int val; }; struct bd718xx_regulator_data { struct regulator_desc desc; const struct reg_init init; const struct reg_init *additional_inits; int additional_init_amnt; }; /* * There is a HW quirk in BD71837. The shutdown sequence timings for * bucks/LDOs which are controlled via register interface are changed. * At PMIC poweroff the voltage for BUCK6/7 is cut immediately at the * beginning of shut-down sequence. As bucks 6 and 7 are parent * supplies for LDO5 and LDO6 - this causes LDO5/6 voltage * monitoring to errorneously detect under voltage and force PMIC to * emergency state instead of poweroff. In order to avoid this we * disable voltage monitoring for LDO5 and LDO6 */ static const struct reg_init bd71837_ldo5_inits[] = { { .reg = BD718XX_REG_MVRFLTMASK2, .mask = BD718XX_LDO5_VRMON80, .val = BD718XX_LDO5_VRMON80, }, }; static const struct reg_init bd71837_ldo6_inits[] = { { .reg = BD718XX_REG_MVRFLTMASK2, .mask = BD718XX_LDO6_VRMON80, .val = BD718XX_LDO6_VRMON80, }, }; #define NUM_DVS_BUCKS 4 struct of_dvs_setting { const char *prop; unsigned int reg; }; static int set_dvs_levels(const struct of_dvs_setting *dvs, struct device_node *np, const struct regulator_desc *desc, struct regmap *regmap) { int ret, i; unsigned int uv; ret = of_property_read_u32(np, dvs->prop, &uv); if (ret) { if (ret != -EINVAL) return ret; return 0; } for (i = 0; i < desc->n_voltages; i++) { ret = regulator_desc_list_voltage_linear_range(desc, i); if (ret < 0) continue; if (ret == uv) { i <<= ffs(desc->vsel_mask) - 1; ret = regmap_update_bits(regmap, dvs->reg, DVS_BUCK_RUN_MASK, i); break; } } return ret; } static int buck4_set_hw_dvs_levels(struct device_node *np, const struct regulator_desc *desc, struct regulator_config *cfg) { int ret, i; const struct of_dvs_setting dvs[] = { { .prop = "rohm,dvs-run-voltage", .reg = BD71837_REG_BUCK4_VOLT_RUN, }, }; for (i = 0; i < ARRAY_SIZE(dvs); i++) { ret = set_dvs_levels(&dvs[i], np, desc, cfg->regmap); if (ret) break; } return ret; } static int buck3_set_hw_dvs_levels(struct device_node *np, const struct regulator_desc *desc, struct regulator_config *cfg) { int ret, i; const struct of_dvs_setting dvs[] = { { .prop = "rohm,dvs-run-voltage", .reg = BD71837_REG_BUCK3_VOLT_RUN, }, }; for (i = 0; i < ARRAY_SIZE(dvs); i++) { ret = set_dvs_levels(&dvs[i], np, desc, cfg->regmap); if (ret) break; } return ret; } static int buck2_set_hw_dvs_levels(struct device_node *np, const struct regulator_desc *desc, struct regulator_config *cfg) { int ret, i; const struct of_dvs_setting dvs[] = { { .prop = "rohm,dvs-run-voltage", .reg = BD718XX_REG_BUCK2_VOLT_RUN, }, { .prop = "rohm,dvs-idle-voltage", .reg = BD718XX_REG_BUCK2_VOLT_IDLE, }, }; for (i = 0; i < ARRAY_SIZE(dvs); i++) { ret = set_dvs_levels(&dvs[i], np, desc, cfg->regmap); if (ret) break; } return ret; } static int buck1_set_hw_dvs_levels(struct device_node *np, const struct regulator_desc *desc, struct regulator_config *cfg) { int ret, i; const struct of_dvs_setting dvs[] = { { .prop = "rohm,dvs-run-voltage", .reg = BD718XX_REG_BUCK1_VOLT_RUN, }, { .prop = "rohm,dvs-idle-voltage", .reg = BD718XX_REG_BUCK1_VOLT_IDLE, }, { .prop = "rohm,dvs-suspend-voltage", .reg = BD718XX_REG_BUCK1_VOLT_SUSP, }, }; for (i = 0; i < ARRAY_SIZE(dvs); i++) { ret = set_dvs_levels(&dvs[i], np, desc, cfg->regmap); if (ret) break; } return ret; } static const struct bd718xx_regulator_data bd71847_regulators[] = { { .desc = { .name = "buck1", .of_match = of_match_ptr("BUCK1"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK1, .ops = &bd718xx_dvs_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), .vsel_reg = BD718XX_REG_BUCK1_VOLT_RUN, .vsel_mask = DVS_BUCK_RUN_MASK, .enable_reg = BD718XX_REG_BUCK1_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, .of_parse_cb = buck1_set_hw_dvs_levels, }, .init = { .reg = BD718XX_REG_BUCK1_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck2", .of_match = of_match_ptr("BUCK2"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK2, .ops = &bd718xx_dvs_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), .vsel_reg = BD718XX_REG_BUCK2_VOLT_RUN, .vsel_mask = DVS_BUCK_RUN_MASK, .enable_reg = BD718XX_REG_BUCK2_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, .of_parse_cb = buck2_set_hw_dvs_levels, }, .init = { .reg = BD718XX_REG_BUCK2_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck3", .of_match = of_match_ptr("BUCK3"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK3, .ops = &bd718xx_pickable_range_buck_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD71847_BUCK3_VOLTAGE_NUM, .linear_ranges = bd71847_buck3_volts, .n_linear_ranges = ARRAY_SIZE(bd71847_buck3_volts), .vsel_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, .vsel_mask = BD718XX_1ST_NODVS_BUCK_MASK, .vsel_range_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, .vsel_range_mask = BD71847_BUCK3_RANGE_MASK, .linear_range_selectors = bd71847_buck3_volt_range_sel, .enable_reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck4", .of_match = of_match_ptr("BUCK4"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK4, .ops = &bd718xx_pickable_range_buck_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD71847_BUCK4_VOLTAGE_NUM, .linear_ranges = bd71847_buck4_volts, .n_linear_ranges = ARRAY_SIZE(bd71847_buck4_volts), .enable_reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, .vsel_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT, .vsel_mask = BD71847_BUCK4_MASK, .vsel_range_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT, .vsel_range_mask = BD71847_BUCK4_RANGE_MASK, .linear_range_selectors = bd71847_buck4_volt_range_sel, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck5", .of_match = of_match_ptr("BUCK5"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK5, .ops = &bd718xx_buck_regulator_nolinear_ops, .type = REGULATOR_VOLTAGE, .volt_table = &bd718xx_3rd_nodvs_buck_volts[0], .n_voltages = ARRAY_SIZE(bd718xx_3rd_nodvs_buck_volts), .vsel_reg = BD718XX_REG_3RD_NODVS_BUCK_VOLT, .vsel_mask = BD718XX_3RD_NODVS_BUCK_MASK, .enable_reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck6", .of_match = of_match_ptr("BUCK6"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK6, .ops = &bd718xx_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_4th_nodvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_4th_nodvs_buck_volts), .vsel_reg = BD718XX_REG_4TH_NODVS_BUCK_VOLT, .vsel_mask = BD718XX_4TH_NODVS_BUCK_MASK, .enable_reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "ldo1", .of_match = of_match_ptr("LDO1"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO1, .ops = &bd718xx_pickable_range_ldo_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO1_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo1_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo1_volts), .vsel_reg = BD718XX_REG_LDO1_VOLT, .vsel_mask = BD718XX_LDO1_MASK, .vsel_range_reg = BD718XX_REG_LDO1_VOLT, .vsel_range_mask = BD718XX_LDO1_RANGE_MASK, .linear_range_selectors = bd718xx_ldo1_volt_range_sel, .enable_reg = BD718XX_REG_LDO1_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO1_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo2", .of_match = of_match_ptr("LDO2"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO2, .ops = &bd718xx_ldo_regulator_nolinear_ops, .type = REGULATOR_VOLTAGE, .volt_table = &ldo_2_volts[0], .vsel_reg = BD718XX_REG_LDO2_VOLT, .vsel_mask = BD718XX_LDO2_MASK, .n_voltages = ARRAY_SIZE(ldo_2_volts), .enable_reg = BD718XX_REG_LDO2_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO2_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo3", .of_match = of_match_ptr("LDO3"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO3, .ops = &bd718xx_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO3_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo3_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo3_volts), .vsel_reg = BD718XX_REG_LDO3_VOLT, .vsel_mask = BD718XX_LDO3_MASK, .enable_reg = BD718XX_REG_LDO3_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO3_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo4", .of_match = of_match_ptr("LDO4"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO4, .ops = &bd718xx_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO4_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo4_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo4_volts), .vsel_reg = BD718XX_REG_LDO4_VOLT, .vsel_mask = BD718XX_LDO4_MASK, .enable_reg = BD718XX_REG_LDO4_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO4_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo5", .of_match = of_match_ptr("LDO5"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO5, .ops = &bd718xx_pickable_range_ldo_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD71847_LDO5_VOLTAGE_NUM, .linear_ranges = bd71847_ldo5_volts, .n_linear_ranges = ARRAY_SIZE(bd71847_ldo5_volts), .vsel_reg = BD718XX_REG_LDO5_VOLT, .vsel_mask = BD71847_LDO5_MASK, .vsel_range_reg = BD718XX_REG_LDO5_VOLT, .vsel_range_mask = BD71847_LDO5_RANGE_MASK, .linear_range_selectors = bd71847_ldo5_volt_range_sel, .enable_reg = BD718XX_REG_LDO5_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO5_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo6", .of_match = of_match_ptr("LDO6"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO6, .ops = &bd718xx_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO6_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo6_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo6_volts), /* LDO6 is supplied by buck5 */ .supply_name = "buck5", .vsel_reg = BD718XX_REG_LDO6_VOLT, .vsel_mask = BD718XX_LDO6_MASK, .enable_reg = BD718XX_REG_LDO6_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO6_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, }; static const struct bd718xx_regulator_data bd71837_regulators[] = { { .desc = { .name = "buck1", .of_match = of_match_ptr("BUCK1"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK1, .ops = &bd718xx_dvs_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), .vsel_reg = BD718XX_REG_BUCK1_VOLT_RUN, .vsel_mask = DVS_BUCK_RUN_MASK, .enable_reg = BD718XX_REG_BUCK1_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, .of_parse_cb = buck1_set_hw_dvs_levels, }, .init = { .reg = BD718XX_REG_BUCK1_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck2", .of_match = of_match_ptr("BUCK2"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK2, .ops = &bd718xx_dvs_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), .vsel_reg = BD718XX_REG_BUCK2_VOLT_RUN, .vsel_mask = DVS_BUCK_RUN_MASK, .enable_reg = BD718XX_REG_BUCK2_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, .of_parse_cb = buck2_set_hw_dvs_levels, }, .init = { .reg = BD718XX_REG_BUCK2_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck3", .of_match = of_match_ptr("BUCK3"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK3, .ops = &bd718xx_dvs_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), .vsel_reg = BD71837_REG_BUCK3_VOLT_RUN, .vsel_mask = DVS_BUCK_RUN_MASK, .enable_reg = BD71837_REG_BUCK3_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, .of_parse_cb = buck3_set_hw_dvs_levels, }, .init = { .reg = BD71837_REG_BUCK3_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck4", .of_match = of_match_ptr("BUCK4"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK4, .ops = &bd718xx_dvs_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_DVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_dvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_dvs_buck_volts), .vsel_reg = BD71837_REG_BUCK4_VOLT_RUN, .vsel_mask = DVS_BUCK_RUN_MASK, .enable_reg = BD71837_REG_BUCK4_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, .of_parse_cb = buck4_set_hw_dvs_levels, }, .init = { .reg = BD71837_REG_BUCK4_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck5", .of_match = of_match_ptr("BUCK5"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK5, .ops = &bd718xx_pickable_range_buck_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD71837_BUCK5_VOLTAGE_NUM, .linear_ranges = bd71837_buck5_volts, .n_linear_ranges = ARRAY_SIZE(bd71837_buck5_volts), .vsel_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, .vsel_mask = BD71837_BUCK5_MASK, .vsel_range_reg = BD718XX_REG_1ST_NODVS_BUCK_VOLT, .vsel_range_mask = BD71837_BUCK5_RANGE_MASK, .linear_range_selectors = bd71837_buck5_volt_range_sel, .enable_reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_1ST_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck6", .of_match = of_match_ptr("BUCK6"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK6, .ops = &bd718xx_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD71837_BUCK6_VOLTAGE_NUM, .linear_ranges = bd71837_buck6_volts, .n_linear_ranges = ARRAY_SIZE(bd71837_buck6_volts), .vsel_reg = BD718XX_REG_2ND_NODVS_BUCK_VOLT, .vsel_mask = BD71837_BUCK6_MASK, .enable_reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_2ND_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck7", .of_match = of_match_ptr("BUCK7"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK7, .ops = &bd718xx_buck_regulator_nolinear_ops, .type = REGULATOR_VOLTAGE, .volt_table = &bd718xx_3rd_nodvs_buck_volts[0], .n_voltages = ARRAY_SIZE(bd718xx_3rd_nodvs_buck_volts), .vsel_reg = BD718XX_REG_3RD_NODVS_BUCK_VOLT, .vsel_mask = BD718XX_3RD_NODVS_BUCK_MASK, .enable_reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_3RD_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "buck8", .of_match = of_match_ptr("BUCK8"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_BUCK8, .ops = &bd718xx_buck_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_4TH_NODVS_BUCK_VOLTAGE_NUM, .linear_ranges = bd718xx_4th_nodvs_buck_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_4th_nodvs_buck_volts), .vsel_reg = BD718XX_REG_4TH_NODVS_BUCK_VOLT, .vsel_mask = BD718XX_4TH_NODVS_BUCK_MASK, .enable_reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL, .enable_mask = BD718XX_BUCK_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_4TH_NODVS_BUCK_CTRL, .mask = BD718XX_BUCK_SEL, .val = BD718XX_BUCK_SEL, }, }, { .desc = { .name = "ldo1", .of_match = of_match_ptr("LDO1"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO1, .ops = &bd718xx_pickable_range_ldo_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO1_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo1_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo1_volts), .vsel_reg = BD718XX_REG_LDO1_VOLT, .vsel_mask = BD718XX_LDO1_MASK, .vsel_range_reg = BD718XX_REG_LDO1_VOLT, .vsel_range_mask = BD718XX_LDO1_RANGE_MASK, .linear_range_selectors = bd718xx_ldo1_volt_range_sel, .enable_reg = BD718XX_REG_LDO1_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO1_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo2", .of_match = of_match_ptr("LDO2"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO2, .ops = &bd718xx_ldo_regulator_nolinear_ops, .type = REGULATOR_VOLTAGE, .volt_table = &ldo_2_volts[0], .vsel_reg = BD718XX_REG_LDO2_VOLT, .vsel_mask = BD718XX_LDO2_MASK, .n_voltages = ARRAY_SIZE(ldo_2_volts), .enable_reg = BD718XX_REG_LDO2_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO2_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo3", .of_match = of_match_ptr("LDO3"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO3, .ops = &bd718xx_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO3_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo3_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo3_volts), .vsel_reg = BD718XX_REG_LDO3_VOLT, .vsel_mask = BD718XX_LDO3_MASK, .enable_reg = BD718XX_REG_LDO3_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO3_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo4", .of_match = of_match_ptr("LDO4"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO4, .ops = &bd718xx_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO4_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo4_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo4_volts), .vsel_reg = BD718XX_REG_LDO4_VOLT, .vsel_mask = BD718XX_LDO4_MASK, .enable_reg = BD718XX_REG_LDO4_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO4_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, { .desc = { .name = "ldo5", .of_match = of_match_ptr("LDO5"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO5, .ops = &bd718xx_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD71837_LDO5_VOLTAGE_NUM, .linear_ranges = bd71837_ldo5_volts, .n_linear_ranges = ARRAY_SIZE(bd71837_ldo5_volts), /* LDO5 is supplied by buck6 */ .supply_name = "buck6", .vsel_reg = BD718XX_REG_LDO5_VOLT, .vsel_mask = BD71837_LDO5_MASK, .enable_reg = BD718XX_REG_LDO5_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO5_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, .additional_inits = bd71837_ldo5_inits, .additional_init_amnt = ARRAY_SIZE(bd71837_ldo5_inits), }, { .desc = { .name = "ldo6", .of_match = of_match_ptr("LDO6"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO6, .ops = &bd718xx_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD718XX_LDO6_VOLTAGE_NUM, .linear_ranges = bd718xx_ldo6_volts, .n_linear_ranges = ARRAY_SIZE(bd718xx_ldo6_volts), /* LDO6 is supplied by buck7 */ .supply_name = "buck7", .vsel_reg = BD718XX_REG_LDO6_VOLT, .vsel_mask = BD718XX_LDO6_MASK, .enable_reg = BD718XX_REG_LDO6_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD718XX_REG_LDO6_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, .additional_inits = bd71837_ldo6_inits, .additional_init_amnt = ARRAY_SIZE(bd71837_ldo6_inits), }, { .desc = { .name = "ldo7", .of_match = of_match_ptr("LDO7"), .regulators_node = of_match_ptr("regulators"), .id = BD718XX_LDO7, .ops = &bd718xx_ldo_regulator_ops, .type = REGULATOR_VOLTAGE, .n_voltages = BD71837_LDO7_VOLTAGE_NUM, .linear_ranges = bd71837_ldo7_volts, .n_linear_ranges = ARRAY_SIZE(bd71837_ldo7_volts), .vsel_reg = BD71837_REG_LDO7_VOLT, .vsel_mask = BD71837_LDO7_MASK, .enable_reg = BD71837_REG_LDO7_VOLT, .enable_mask = BD718XX_LDO_EN, .owner = THIS_MODULE, }, .init = { .reg = BD71837_REG_LDO7_VOLT, .mask = BD718XX_LDO_SEL, .val = BD718XX_LDO_SEL, }, }, }; struct bd718xx_pmic_inits { const struct bd718xx_regulator_data *r_datas; unsigned int r_amount; }; static int bd718xx_probe(struct platform_device *pdev) { struct bd718xx *mfd; struct regulator_config config = { 0 }; struct bd718xx_pmic_inits pmic_regulators[] = { [BD718XX_TYPE_BD71837] = { .r_datas = bd71837_regulators, .r_amount = ARRAY_SIZE(bd71837_regulators), }, [BD718XX_TYPE_BD71847] = { .r_datas = bd71847_regulators, .r_amount = ARRAY_SIZE(bd71847_regulators), }, }; int i, j, err; bool use_snvs; mfd = dev_get_drvdata(pdev->dev.parent); if (!mfd) { dev_err(&pdev->dev, "No MFD driver data\n"); err = -EINVAL; goto err; } if (mfd->chip_type >= BD718XX_TYPE_AMOUNT || !pmic_regulators[mfd->chip_type].r_datas) { dev_err(&pdev->dev, "Unsupported chip type\n"); err = -EINVAL; goto err; } /* Register LOCK release */ err = regmap_update_bits(mfd->regmap, BD718XX_REG_REGLOCK, (REGLOCK_PWRSEQ | REGLOCK_VREG), 0); if (err) { dev_err(&pdev->dev, "Failed to unlock PMIC (%d)\n", err); goto err; } else { dev_dbg(&pdev->dev, "Unlocked lock register 0x%x\n", BD718XX_REG_REGLOCK); } use_snvs = of_property_read_bool(pdev->dev.parent->of_node, "rohm,reset-snvs-powered"); /* * Change the next stage from poweroff to be READY instead of SNVS * for all reset types because OTP loading at READY will clear SEL * bit allowing HW defaults for power rails to be used */ if (!use_snvs) { err = regmap_update_bits(mfd->regmap, BD718XX_REG_TRANS_COND1, BD718XX_ON_REQ_POWEROFF_MASK | BD718XX_SWRESET_POWEROFF_MASK | BD718XX_WDOG_POWEROFF_MASK | BD718XX_KEY_L_POWEROFF_MASK, BD718XX_POWOFF_TO_RDY); if (err) { dev_err(&pdev->dev, "Failed to change reset target\n"); goto err; } else { dev_dbg(&pdev->dev, "Changed all resets from SVNS to READY\n"); } } for (i = 0; i < pmic_regulators[mfd->chip_type].r_amount; i++) { const struct regulator_desc *desc; struct regulator_dev *rdev; const struct bd718xx_regulator_data *r; r = &pmic_regulators[mfd->chip_type].r_datas[i]; desc = &r->desc; config.dev = pdev->dev.parent; config.regmap = mfd->regmap; rdev = devm_regulator_register(&pdev->dev, desc, &config); if (IS_ERR(rdev)) { dev_err(&pdev->dev, "failed to register %s regulator\n", desc->name); err = PTR_ERR(rdev); goto err; } /* * Regulator register gets the regulator constraints and * applies them (set_machine_constraints). This should have * turned the control register(s) to correct values and we * can now switch the control from PMIC state machine to the * register interface * * At poweroff transition PMIC HW disables EN bit for * regulators but leaves SEL bit untouched. So if state * transition from POWEROFF is done to SNVS - then all power * rails controlled by SW (having SEL bit set) stay disabled * as EN is cleared. This will result boot failure if any * crucial systems are powered by these rails. We don't * enable SW control for crucial regulators if snvs state is * used */ if (!use_snvs || !rdev->constraints->always_on || !rdev->constraints->boot_on) { err = regmap_update_bits(mfd->regmap, r->init.reg, r->init.mask, r->init.val); if (err) { dev_err(&pdev->dev, "Failed to take control for (%s)\n", desc->name); goto err; } } for (j = 0; j < r->additional_init_amnt; j++) { err = regmap_update_bits(mfd->regmap, r->additional_inits[j].reg, r->additional_inits[j].mask, r->additional_inits[j].val); if (err) { dev_err(&pdev->dev, "Buck (%s) initialization failed\n", desc->name); goto err; } } } err: return err; } static struct platform_driver bd718xx_regulator = { .driver = { .name = "bd718xx-pmic", }, .probe = bd718xx_probe, }; module_platform_driver(bd718xx_regulator); MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>"); MODULE_DESCRIPTION("BD71837/BD71847 voltage regulator driver"); MODULE_LICENSE("GPL");
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