diff options
Diffstat (limited to 'drivers/regulator/max14577-regulator.c')
| -rw-r--r-- | drivers/regulator/max14577-regulator.c | 86 |
1 files changed, 12 insertions, 74 deletions
diff --git a/drivers/regulator/max14577-regulator.c b/drivers/regulator/max14577-regulator.c index 0db288ce319c..41fd15adfd1f 100644 --- a/drivers/regulator/max14577-regulator.c +++ b/drivers/regulator/max14577-regulator.c @@ -1,19 +1,9 @@ -/* - * max14577.c - Regulator driver for the Maxim 14577/77836 - * - * Copyright (C) 2013,2014 Samsung Electronics - * Krzysztof Kozlowski <krzk@kernel.org> - * - * 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. - */ +// SPDX-License-Identifier: GPL-2.0+ +// +// max14577.c - Regulator driver for the Maxim 14577/77836 +// +// Copyright (C) 2013,2014 Samsung Electronics +// Krzysztof Kozlowski <krzk@kernel.org> #include <linux/module.h> #include <linux/platform_device.h> @@ -50,11 +40,14 @@ static int max14577_reg_get_current_limit(struct regulator_dev *rdev) struct max14577 *max14577 = rdev_get_drvdata(rdev); const struct maxim_charger_current *limits = &maxim_charger_currents[max14577->dev_type]; + int ret; if (rdev_get_id(rdev) != MAX14577_CHARGER) return -EINVAL; - max14577_read_reg(rmap, MAX14577_CHG_REG_CHG_CTRL4, ®_data); + ret = max14577_read_reg(rmap, MAX14577_CHG_REG_CHG_CTRL4, ®_data); + if (ret < 0) + return ret; if ((reg_data & CHGCTRL4_MBCICHWRCL_MASK) == 0) return limits->min; @@ -165,59 +158,7 @@ static const struct regulator_desc max77836_supported_regulators[] = { [MAX77836_LDO2] = MAX77836_LDO_REG(2), }; -#ifdef CONFIG_OF -static struct of_regulator_match max14577_regulator_matches[] = { - { .name = "SAFEOUT", }, - { .name = "CHARGER", }, -}; - -static struct of_regulator_match max77836_regulator_matches[] = { - { .name = "SAFEOUT", }, - { .name = "CHARGER", }, - { .name = "LDO1", }, - { .name = "LDO2", }, -}; - -static inline struct regulator_init_data *match_init_data(int index, - enum maxim_device_type dev_type) -{ - switch (dev_type) { - case MAXIM_DEVICE_TYPE_MAX77836: - return max77836_regulator_matches[index].init_data; - - case MAXIM_DEVICE_TYPE_MAX14577: - default: - return max14577_regulator_matches[index].init_data; - } -} - -static inline struct device_node *match_of_node(int index, - enum maxim_device_type dev_type) -{ - switch (dev_type) { - case MAXIM_DEVICE_TYPE_MAX77836: - return max77836_regulator_matches[index].of_node; - - case MAXIM_DEVICE_TYPE_MAX14577: - default: - return max14577_regulator_matches[index].of_node; - } -} -#else /* CONFIG_OF */ -static inline struct regulator_init_data *match_init_data(int index, - enum maxim_device_type dev_type) -{ - return NULL; -} - -static inline struct device_node *match_of_node(int index, - enum maxim_device_type dev_type) -{ - return NULL; -} -#endif /* CONFIG_OF */ - -/** +/* * Registers for regulators of max77836 use different I2C slave addresses so * different regmaps must be used for them. * @@ -275,9 +216,6 @@ static int max14577_regulator_probe(struct platform_device *pdev) if (pdata && pdata->regulators) { config.init_data = pdata->regulators[i].initdata; config.of_node = pdata->regulators[i].of_node; - } else { - config.init_data = match_init_data(i, dev_type); - config.of_node = match_of_node(i, dev_type); } config.regmap = max14577_get_regmap(max14577, supported_regulators[i].id); @@ -306,6 +244,7 @@ MODULE_DEVICE_TABLE(platform, max14577_regulator_id); static struct platform_driver max14577_regulator_driver = { .driver = { .name = "max14577-regulator", + .probe_type = PROBE_PREFER_ASYNCHRONOUS, }, .probe = max14577_regulator_probe, .id_table = max14577_regulator_id, @@ -334,4 +273,3 @@ module_exit(max14577_regulator_exit); MODULE_AUTHOR("Krzysztof Kozlowski <krzk@kernel.org>"); MODULE_DESCRIPTION("Maxim 14577/77836 regulator driver"); MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:max14577-regulator"); |