| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Matti Vaittinen | 2302 | 98.93% | 1 | 33.33% |
| Axel Lin | 25 | 1.07% | 2 | 66.67% |
| Total | 2327 | 3 |
// SPDX-License-Identifier: GPL-2.0-only // // Copyright 2014 Embest Technology Co. Ltd. Inc. // bd71815-regulator.c ROHM BD71815 regulator driver // // Author: Tony Luo <luofc@embedinfo.com> // // Partially rewritten at 2021 by // Matti Vaittinen <matti.vaitinen@fi.rohmeurope.com> #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> #include <linux/err.h> #include <linux/platform_device.h> #include <linux/of.h> #include <linux/gpio/consumer.h> #include <linux/regulator/driver.h> #include <linux/delay.h> #include <linux/slab.h> #include <linux/gpio.h> #include <linux/mfd/rohm-generic.h> #include <linux/mfd/rohm-bd71815.h> #include <linux/regulator/of_regulator.h> struct bd71815_regulator { struct regulator_desc desc; const struct rohm_dvs_config *dvs; }; static const int bd7181x_wled_currents[] = { 10, 20, 30, 50, 70, 100, 200, 300, 500, 700, 1000, 2000, 3000, 4000, 5000, 6000, 7000, 8000, 9000, 10000, 11000, 12000, 13000, 14000, 15000, 16000, 17000, 18000, 19000, 20000, 21000, 22000, 23000, 24000, 25000, }; static const struct rohm_dvs_config buck1_dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS | ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR, .run_reg = BD71815_REG_BUCK1_VOLT_H, .run_mask = BD71815_VOLT_MASK, .run_on_mask = BD71815_BUCK_RUN_ON, .snvs_on_mask = BD71815_BUCK_SNVS_ON, .suspend_reg = BD71815_REG_BUCK1_VOLT_L, .suspend_mask = BD71815_VOLT_MASK, .suspend_on_mask = BD71815_BUCK_SUSP_ON, .lpsr_reg = BD71815_REG_BUCK1_VOLT_L, .lpsr_mask = BD71815_VOLT_MASK, .lpsr_on_mask = BD71815_BUCK_LPSR_ON, }; static const struct rohm_dvs_config buck2_dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS | ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR, .run_reg = BD71815_REG_BUCK2_VOLT_H, .run_mask = BD71815_VOLT_MASK, .run_on_mask = BD71815_BUCK_RUN_ON, .snvs_on_mask = BD71815_BUCK_SNVS_ON, .suspend_reg = BD71815_REG_BUCK2_VOLT_L, .suspend_mask = BD71815_VOLT_MASK, .suspend_on_mask = BD71815_BUCK_SUSP_ON, .lpsr_reg = BD71815_REG_BUCK2_VOLT_L, .lpsr_mask = BD71815_VOLT_MASK, .lpsr_on_mask = BD71815_BUCK_LPSR_ON, }; static const struct rohm_dvs_config buck3_dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS | ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR, .run_reg = BD71815_REG_BUCK3_VOLT, .run_mask = BD71815_VOLT_MASK, .run_on_mask = BD71815_BUCK_RUN_ON, .snvs_on_mask = BD71815_BUCK_SNVS_ON, .suspend_on_mask = BD71815_BUCK_SUSP_ON, .lpsr_on_mask = BD71815_BUCK_LPSR_ON, }; static const struct rohm_dvs_config buck4_dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS | ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR, .run_reg = BD71815_REG_BUCK4_VOLT, .run_mask = BD71815_VOLT_MASK, .run_on_mask = BD71815_BUCK_RUN_ON, .snvs_on_mask = BD71815_BUCK_SNVS_ON, .suspend_on_mask = BD71815_BUCK_SUSP_ON, .lpsr_on_mask = BD71815_BUCK_LPSR_ON, }; static const struct rohm_dvs_config ldo1_dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS | ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR, .run_reg = BD71815_REG_LDO_MODE1, .run_mask = BD71815_VOLT_MASK, .run_on_mask = LDO1_RUN_ON, .snvs_on_mask = LDO1_SNVS_ON, .suspend_on_mask = LDO1_SUSP_ON, .lpsr_on_mask = LDO1_LPSR_ON, }; static const struct rohm_dvs_config ldo2_dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS | ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR, .run_reg = BD71815_REG_LDO_MODE2, .run_mask = BD71815_VOLT_MASK, .run_on_mask = LDO2_RUN_ON, .snvs_on_mask = LDO2_SNVS_ON, .suspend_on_mask = LDO2_SUSP_ON, .lpsr_on_mask = LDO2_LPSR_ON, }; static const struct rohm_dvs_config ldo3_dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS | ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR, .run_reg = BD71815_REG_LDO_MODE2, .run_mask = BD71815_VOLT_MASK, .run_on_mask = LDO3_RUN_ON, .snvs_on_mask = LDO3_SNVS_ON, .suspend_on_mask = LDO3_SUSP_ON, .lpsr_on_mask = LDO3_LPSR_ON, }; static const struct rohm_dvs_config ldo4_dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS | ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR, .run_reg = BD71815_REG_LDO_MODE3, .run_mask = BD71815_VOLT_MASK, .run_on_mask = LDO4_RUN_ON, .snvs_on_mask = LDO4_SNVS_ON, .suspend_on_mask = LDO4_SUSP_ON, .lpsr_on_mask = LDO4_LPSR_ON, }; static const struct rohm_dvs_config ldo5_dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS | ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR, .run_reg = BD71815_REG_LDO_MODE3, .run_mask = BD71815_VOLT_MASK, .run_on_mask = LDO5_RUN_ON, .snvs_on_mask = LDO5_SNVS_ON, .suspend_on_mask = LDO5_SUSP_ON, .lpsr_on_mask = LDO5_LPSR_ON, }; static const struct rohm_dvs_config dvref_dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS | ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR, .run_on_mask = DVREF_RUN_ON, .snvs_on_mask = DVREF_SNVS_ON, .suspend_on_mask = DVREF_SUSP_ON, .lpsr_on_mask = DVREF_LPSR_ON, }; static const struct rohm_dvs_config ldolpsr_dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS | ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR, .run_on_mask = DVREF_RUN_ON, .snvs_on_mask = DVREF_SNVS_ON, .suspend_on_mask = DVREF_SUSP_ON, .lpsr_on_mask = DVREF_LPSR_ON, }; static const struct rohm_dvs_config buck5_dvs = { .level_map = ROHM_DVS_LEVEL_RUN | ROHM_DVS_LEVEL_SNVS | ROHM_DVS_LEVEL_SUSPEND | ROHM_DVS_LEVEL_LPSR, .run_reg = BD71815_REG_BUCK5_VOLT, .run_mask = BD71815_VOLT_MASK, .run_on_mask = BD71815_BUCK_RUN_ON, .snvs_on_mask = BD71815_BUCK_SNVS_ON, .suspend_on_mask = BD71815_BUCK_SUSP_ON, .lpsr_on_mask = BD71815_BUCK_LPSR_ON, }; static int set_hw_dvs_levels(struct device_node *np, const struct regulator_desc *desc, struct regulator_config *cfg) { struct bd71815_regulator *data; data = container_of(desc, struct bd71815_regulator, desc); return rohm_regulator_set_dvs_levels(data->dvs, np, desc, cfg->regmap); } /* * Bucks 1 and 2 have two voltage selection registers where selected * voltage can be set. Which of the registers is used can be either controlled * by a control bit in register - or by HW state. If HW state specific voltages * are given - then we assume HW state based control should be used. * * If volatge value is updated to currently selected register - then output * voltage is immediately changed no matter what is set as ramp rate. Thus we * default changing voltage by writing new value to inactive register and * then updating the 'register selection' bit. This naturally only works when * HW state machine is not used to select the voltage. */ static int buck12_set_hw_dvs_levels(struct device_node *np, const struct regulator_desc *desc, struct regulator_config *cfg) { struct bd71815_regulator *data; int ret = 0, val; data = container_of(desc, struct bd71815_regulator, desc); if (of_find_property(np, "rohm,dvs-run-voltage", NULL) || of_find_property(np, "rohm,dvs-suspend-voltage", NULL) || of_find_property(np, "rohm,dvs-lpsr-voltage", NULL) || of_find_property(np, "rohm,dvs-snvs-voltage", NULL)) { ret = regmap_read(cfg->regmap, desc->vsel_reg, &val); if (ret) return ret; if (!(BD71815_BUCK_STBY_DVS & val) && !(BD71815_BUCK_DVSSEL & val)) { int val2; /* * We are currently using voltage from _L. * We'd better copy it to _H and switch to it to * avoid shutting us down if LPSR or SUSPEND is set to * disabled. _L value is at reg _H + 1 */ ret = regmap_read(cfg->regmap, desc->vsel_reg + 1, &val2); if (ret) return ret; ret = regmap_update_bits(cfg->regmap, desc->vsel_reg, BD71815_VOLT_MASK | BD71815_BUCK_DVSSEL, val2 | BD71815_BUCK_DVSSEL); if (ret) return ret; } ret = rohm_regulator_set_dvs_levels(data->dvs, np, desc, cfg->regmap); if (ret) return ret; /* * DVS levels were given => use HW-state machine for voltage * controls. NOTE: AFAIK, This means that if voltage is changed * by SW the ramp-rate is not respected. Should we disable * SW voltage control when the HW state machine is used? */ ret = regmap_update_bits(cfg->regmap, desc->vsel_reg, BD71815_BUCK_STBY_DVS, BD71815_BUCK_STBY_DVS); } return ret; } /* * BUCK1/2 * 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 const unsigned int bd7181x_ramp_table[] = { 1250, 2500, 5000, 10000 }; static int bd7181x_led_set_current_limit(struct regulator_dev *rdev, int min_uA, int max_uA) { int ret; int onstatus; onstatus = regulator_is_enabled_regmap(rdev); ret = regulator_set_current_limit_regmap(rdev, min_uA, max_uA); if (!ret) { int newstatus; newstatus = regulator_is_enabled_regmap(rdev); if (onstatus != newstatus) { /* * HW FIX: spurious led status change detected. Toggle * state as a workaround */ if (onstatus) ret = regulator_enable_regmap(rdev); else ret = regulator_disable_regmap(rdev); if (ret) dev_err(rdev_get_dev(rdev), "failed to revert the LED state (%d)\n", ret); } } return ret; } static int bd7181x_buck12_get_voltage_sel(struct regulator_dev *rdev) { int rid = rdev_get_id(rdev); int ret, regh, regl, val; regh = BD71815_REG_BUCK1_VOLT_H + rid * 0x2; regl = BD71815_REG_BUCK1_VOLT_L + rid * 0x2; ret = regmap_read(rdev->regmap, regh, &val); if (ret) return ret; /* * If we use HW state machine based voltage reg selection - then we * return BD71815_REG_BUCK1_VOLT_H which is used at RUN. * Else we do return the BD71815_REG_BUCK1_VOLT_H or * BD71815_REG_BUCK1_VOLT_L depending on which is selected to be used * by BD71815_BUCK_DVSSEL bit */ if ((!(val & BD71815_BUCK_STBY_DVS)) && (!(val & BD71815_BUCK_DVSSEL))) ret = regmap_read(rdev->regmap, regl, &val); if (ret) return ret; return val & BD71815_VOLT_MASK; } /* * For Buck 1/2. */ static int bd7181x_buck12_set_voltage_sel(struct regulator_dev *rdev, unsigned int sel) { int rid = rdev_get_id(rdev); int ret, val, reg, regh, regl; regh = BD71815_REG_BUCK1_VOLT_H + rid*0x2; regl = BD71815_REG_BUCK1_VOLT_L + rid*0x2; ret = regmap_read(rdev->regmap, regh, &val); if (ret) return ret; /* * If bucks 1 & 2 are controlled by state machine - then the RUN state * voltage is set to BD71815_REG_BUCK1_VOLT_H. Changing SUSPEND/LPSR * voltages at runtime is not supported by this driver. */ if (((val & BD71815_BUCK_STBY_DVS))) { return regmap_update_bits(rdev->regmap, regh, BD71815_VOLT_MASK, sel); } /* Update new voltage to the register which is not selected now */ if (val & BD71815_BUCK_DVSSEL) reg = regl; else reg = regh; ret = regmap_update_bits(rdev->regmap, reg, BD71815_VOLT_MASK, sel); if (ret) return ret; /* Select the other DVS register to be used */ return regmap_update_bits(rdev->regmap, regh, BD71815_BUCK_DVSSEL, ~val); } static const struct regulator_ops bd7181x_ldo_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear, .set_voltage_sel = regulator_set_voltage_sel_regmap, .get_voltage_sel = regulator_get_voltage_sel_regmap, }; static const struct regulator_ops bd7181x_fixed_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear, }; static const struct regulator_ops bd7181x_buck_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear, .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, }; static const struct regulator_ops bd7181x_buck12_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .list_voltage = regulator_list_voltage_linear, .set_voltage_sel = bd7181x_buck12_set_voltage_sel, .get_voltage_sel = bd7181x_buck12_get_voltage_sel, .set_voltage_time_sel = regulator_set_voltage_time_sel, .set_ramp_delay = regulator_set_ramp_delay_regmap, }; static const struct regulator_ops bd7181x_led_regulator_ops = { .enable = regulator_enable_regmap, .disable = regulator_disable_regmap, .is_enabled = regulator_is_enabled_regmap, .set_current_limit = bd7181x_led_set_current_limit, .get_current_limit = regulator_get_current_limit_regmap, }; #define BD71815_FIXED_REG(_name, _id, ereg, emsk, voltage, _dvs) \ [(_id)] = { \ .desc = { \ .name = #_name, \ .of_match = of_match_ptr(#_name), \ .regulators_node = of_match_ptr("regulators"), \ .n_voltages = 1, \ .ops = &bd7181x_fixed_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = (_id), \ .owner = THIS_MODULE, \ .min_uV = (voltage), \ .enable_reg = (ereg), \ .enable_mask = (emsk), \ .of_parse_cb = set_hw_dvs_levels, \ }, \ .dvs = (_dvs), \ } #define BD71815_BUCK_REG(_name, _id, vsel, ereg, min, max, step, _dvs) \ [(_id)] = { \ .desc = { \ .name = #_name, \ .of_match = of_match_ptr(#_name), \ .regulators_node = of_match_ptr("regulators"), \ .n_voltages = ((max) - (min)) / (step) + 1, \ .ops = &bd7181x_buck_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = (_id), \ .owner = THIS_MODULE, \ .min_uV = (min), \ .uV_step = (step), \ .vsel_reg = (vsel), \ .vsel_mask = BD71815_VOLT_MASK, \ .enable_reg = (ereg), \ .enable_mask = BD71815_BUCK_RUN_ON, \ .of_parse_cb = set_hw_dvs_levels, \ }, \ .dvs = (_dvs), \ } #define BD71815_BUCK12_REG(_name, _id, vsel, ereg, min, max, step, \ _dvs) \ [(_id)] = { \ .desc = { \ .name = #_name, \ .of_match = of_match_ptr(#_name), \ .regulators_node = of_match_ptr("regulators"), \ .n_voltages = ((max) - (min)) / (step) + 1, \ .ops = &bd7181x_buck12_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = (_id), \ .owner = THIS_MODULE, \ .min_uV = (min), \ .uV_step = (step), \ .vsel_reg = (vsel), \ .vsel_mask = 0x3f, \ .enable_reg = (ereg), \ .enable_mask = 0x04, \ .ramp_reg = (ereg), \ .ramp_mask = BD71815_BUCK_RAMPRATE_MASK, \ .ramp_delay_table = bd7181x_ramp_table, \ .n_ramp_values = ARRAY_SIZE(bd7181x_ramp_table),\ .of_parse_cb = buck12_set_hw_dvs_levels, \ }, \ .dvs = (_dvs), \ } #define BD71815_LED_REG(_name, _id, csel, mask, ereg, emsk, currents) \ [(_id)] = { \ .desc = { \ .name = #_name, \ .of_match = of_match_ptr(#_name), \ .regulators_node = of_match_ptr("regulators"), \ .n_current_limits = ARRAY_SIZE(currents), \ .ops = &bd7181x_led_regulator_ops, \ .type = REGULATOR_CURRENT, \ .id = (_id), \ .owner = THIS_MODULE, \ .curr_table = currents, \ .csel_reg = (csel), \ .csel_mask = (mask), \ .enable_reg = (ereg), \ .enable_mask = (emsk), \ }, \ } #define BD71815_LDO_REG(_name, _id, vsel, ereg, emsk, min, max, step, \ _dvs) \ [(_id)] = { \ .desc = { \ .name = #_name, \ .of_match = of_match_ptr(#_name), \ .regulators_node = of_match_ptr("regulators"), \ .n_voltages = ((max) - (min)) / (step) + 1, \ .ops = &bd7181x_ldo_regulator_ops, \ .type = REGULATOR_VOLTAGE, \ .id = (_id), \ .owner = THIS_MODULE, \ .min_uV = (min), \ .uV_step = (step), \ .vsel_reg = (vsel), \ .vsel_mask = BD71815_VOLT_MASK, \ .enable_reg = (ereg), \ .enable_mask = (emsk), \ .of_parse_cb = set_hw_dvs_levels, \ }, \ .dvs = (_dvs), \ } static const struct bd71815_regulator bd71815_regulators[] = { BD71815_BUCK12_REG(buck1, BD71815_BUCK1, BD71815_REG_BUCK1_VOLT_H, BD71815_REG_BUCK1_MODE, 800000, 2000000, 25000, &buck1_dvs), BD71815_BUCK12_REG(buck2, BD71815_BUCK2, BD71815_REG_BUCK2_VOLT_H, BD71815_REG_BUCK2_MODE, 800000, 2000000, 25000, &buck2_dvs), BD71815_BUCK_REG(buck3, BD71815_BUCK3, BD71815_REG_BUCK3_VOLT, BD71815_REG_BUCK3_MODE, 1200000, 2700000, 50000, &buck3_dvs), BD71815_BUCK_REG(buck4, BD71815_BUCK4, BD71815_REG_BUCK4_VOLT, BD71815_REG_BUCK4_MODE, 1100000, 1850000, 25000, &buck4_dvs), BD71815_BUCK_REG(buck5, BD71815_BUCK5, BD71815_REG_BUCK5_VOLT, BD71815_REG_BUCK5_MODE, 1800000, 3300000, 50000, &buck5_dvs), BD71815_LDO_REG(ldo1, BD71815_LDO1, BD71815_REG_LDO1_VOLT, BD71815_REG_LDO_MODE1, LDO1_RUN_ON, 800000, 3300000, 50000, &ldo1_dvs), BD71815_LDO_REG(ldo2, BD71815_LDO2, BD71815_REG_LDO2_VOLT, BD71815_REG_LDO_MODE2, LDO2_RUN_ON, 800000, 3300000, 50000, &ldo2_dvs), /* * Let's default LDO3 to be enabled by SW. We can override ops if DT * says LDO3 should be enabled by HW when DCIN is connected. */ BD71815_LDO_REG(ldo3, BD71815_LDO3, BD71815_REG_LDO3_VOLT, BD71815_REG_LDO_MODE2, LDO3_RUN_ON, 800000, 3300000, 50000, &ldo3_dvs), BD71815_LDO_REG(ldo4, BD71815_LDO4, BD71815_REG_LDO4_VOLT, BD71815_REG_LDO_MODE3, LDO4_RUN_ON, 800000, 3300000, 50000, &ldo4_dvs), BD71815_LDO_REG(ldo5, BD71815_LDO5, BD71815_REG_LDO5_VOLT_H, BD71815_REG_LDO_MODE3, LDO5_RUN_ON, 800000, 3300000, 50000, &ldo5_dvs), BD71815_FIXED_REG(ldodvref, BD71815_LDODVREF, BD71815_REG_LDO_MODE4, DVREF_RUN_ON, 3000000, &dvref_dvs), BD71815_FIXED_REG(ldolpsr, BD71815_LDOLPSR, BD71815_REG_LDO_MODE4, LDO_LPSR_RUN_ON, 1800000, &ldolpsr_dvs), BD71815_LED_REG(wled, BD71815_WLED, BD71815_REG_LED_DIMM, LED_DIMM_MASK, BD71815_REG_LED_CTRL, LED_RUN_ON, bd7181x_wled_currents), }; static int bd7181x_probe(struct platform_device *pdev) { struct regulator_config config = {}; int i, ret; struct gpio_desc *ldo4_en; struct regmap *regmap; regmap = dev_get_regmap(pdev->dev.parent, NULL); if (!regmap) { dev_err(&pdev->dev, "No parent regmap\n"); return -ENODEV; } ldo4_en = devm_gpiod_get_from_of_node(&pdev->dev, pdev->dev.parent->of_node, "rohm,vsel-gpios", 0, GPIOD_ASIS, "ldo4-en"); if (IS_ERR(ldo4_en)) { ret = PTR_ERR(ldo4_en); if (ret != -ENOENT) return ret; ldo4_en = NULL; } /* Disable to go to ship-mode */ ret = regmap_update_bits(regmap, BD71815_REG_PWRCTRL, RESTARTEN, 0); if (ret) return ret; config.dev = pdev->dev.parent; config.regmap = regmap; for (i = 0; i < BD71815_REGULATOR_CNT; i++) { const struct regulator_desc *desc; struct regulator_dev *rdev; desc = &bd71815_regulators[i].desc; if (i == BD71815_LDO4) config.ena_gpiod = ldo4_en; else config.ena_gpiod = NULL; rdev = devm_regulator_register(&pdev->dev, desc, &config); if (IS_ERR(rdev)) { dev_err(&pdev->dev, "failed to register %s regulator\n", desc->name); return PTR_ERR(rdev); } } return 0; } static const struct platform_device_id bd7181x_pmic_id[] = { { "bd71815-pmic", ROHM_CHIP_TYPE_BD71815 }, { }, }; MODULE_DEVICE_TABLE(platform, bd7181x_pmic_id); static struct platform_driver bd7181x_regulator = { .driver = { .name = "bd7181x-pmic", }, .probe = bd7181x_probe, .id_table = bd7181x_pmic_id, }; module_platform_driver(bd7181x_regulator); MODULE_AUTHOR("Tony Luo <luofc@embedinfo.com>"); MODULE_DESCRIPTION("BD71815 voltage regulator driver"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:bd7181x-pmic");
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