X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=kernel%2Fdrivers%2Fregulator%2Fmax77843.c;fp=kernel%2Fdrivers%2Fregulator%2Fmax77843.c;h=0000000000000000000000000000000000000000;hb=e09b41010ba33a20a87472ee821fa407a5b8da36;hp=c132ef527cdddb307cfe9567d7eadb332739e62c;hpb=f93b97fd65072de626c074dbe099a1fff05ce060;p=kvmfornfv.git diff --git a/kernel/drivers/regulator/max77843.c b/kernel/drivers/regulator/max77843.c deleted file mode 100644 index c132ef527..000000000 --- a/kernel/drivers/regulator/max77843.c +++ /dev/null @@ -1,227 +0,0 @@ -/* - * max77843.c - Regulator driver for the Maxim MAX77843 - * - * Copyright (C) 2015 Samsung Electronics - * Author: Jaewon Kim - * Author: Beomho Seo - * - * 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 -#include - -enum max77843_regulator_type { - MAX77843_SAFEOUT1 = 0, - MAX77843_SAFEOUT2, - MAX77843_CHARGER, - - MAX77843_NUM, -}; - -static const unsigned int max77843_safeout_voltage_table[] = { - 4850000, - 4900000, - 4950000, - 3300000, -}; - -static int max77843_reg_is_enabled(struct regulator_dev *rdev) -{ - struct regmap *regmap = rdev->regmap; - int ret; - unsigned int reg; - - ret = regmap_read(regmap, rdev->desc->enable_reg, ®); - if (ret) { - dev_err(&rdev->dev, "Fialed to read charger register\n"); - return ret; - } - - return (reg & rdev->desc->enable_mask) == rdev->desc->enable_mask; -} - -static int max77843_reg_get_current_limit(struct regulator_dev *rdev) -{ - struct regmap *regmap = rdev->regmap; - unsigned int chg_min_uA = rdev->constraints->min_uA; - unsigned int chg_max_uA = rdev->constraints->max_uA; - unsigned int val; - int ret; - unsigned int reg, sel; - - ret = regmap_read(regmap, MAX77843_CHG_REG_CHG_CNFG_02, ®); - if (ret) { - dev_err(&rdev->dev, "Failed to read charger register\n"); - return ret; - } - - sel = reg & MAX77843_CHG_FAST_CHG_CURRENT_MASK; - - if (sel < 0x03) - sel = 0; - else - sel -= 2; - - val = chg_min_uA + MAX77843_CHG_FAST_CHG_CURRENT_STEP * sel; - if (val > chg_max_uA) - return -EINVAL; - - return val; -} - -static int max77843_reg_set_current_limit(struct regulator_dev *rdev, - int min_uA, int max_uA) -{ - struct regmap *regmap = rdev->regmap; - unsigned int chg_min_uA = rdev->constraints->min_uA; - int sel = 0; - - while (chg_min_uA + MAX77843_CHG_FAST_CHG_CURRENT_STEP * sel < min_uA) - sel++; - - if (chg_min_uA + MAX77843_CHG_FAST_CHG_CURRENT_STEP * sel > max_uA) - return -EINVAL; - - sel += 2; - - return regmap_write(regmap, MAX77843_CHG_REG_CHG_CNFG_02, sel); -} - -static struct regulator_ops max77843_charger_ops = { - .is_enabled = max77843_reg_is_enabled, - .enable = regulator_enable_regmap, - .disable = regulator_disable_regmap, - .get_current_limit = max77843_reg_get_current_limit, - .set_current_limit = max77843_reg_set_current_limit, -}; - -static struct regulator_ops max77843_regulator_ops = { - .is_enabled = regulator_is_enabled_regmap, - .enable = regulator_enable_regmap, - .disable = regulator_disable_regmap, - .list_voltage = regulator_list_voltage_table, - .get_voltage_sel = regulator_get_voltage_sel_regmap, - .set_voltage_sel = regulator_set_voltage_sel_regmap, -}; - -static const struct regulator_desc max77843_supported_regulators[] = { - [MAX77843_SAFEOUT1] = { - .name = "SAFEOUT1", - .id = MAX77843_SAFEOUT1, - .ops = &max77843_regulator_ops, - .of_match = of_match_ptr("SAFEOUT1"), - .regulators_node = of_match_ptr("regulators"), - .type = REGULATOR_VOLTAGE, - .owner = THIS_MODULE, - .n_voltages = ARRAY_SIZE(max77843_safeout_voltage_table), - .volt_table = max77843_safeout_voltage_table, - .enable_reg = MAX77843_SYS_REG_SAFEOUTCTRL, - .enable_mask = MAX77843_REG_SAFEOUTCTRL_ENSAFEOUT1, - .vsel_reg = MAX77843_SYS_REG_SAFEOUTCTRL, - .vsel_mask = MAX77843_REG_SAFEOUTCTRL_SAFEOUT1_MASK, - }, - [MAX77843_SAFEOUT2] = { - .name = "SAFEOUT2", - .id = MAX77843_SAFEOUT2, - .ops = &max77843_regulator_ops, - .of_match = of_match_ptr("SAFEOUT2"), - .regulators_node = of_match_ptr("regulators"), - .type = REGULATOR_VOLTAGE, - .owner = THIS_MODULE, - .n_voltages = ARRAY_SIZE(max77843_safeout_voltage_table), - .volt_table = max77843_safeout_voltage_table, - .enable_reg = MAX77843_SYS_REG_SAFEOUTCTRL, - .enable_mask = MAX77843_REG_SAFEOUTCTRL_ENSAFEOUT2, - .vsel_reg = MAX77843_SYS_REG_SAFEOUTCTRL, - .vsel_mask = MAX77843_REG_SAFEOUTCTRL_SAFEOUT2_MASK, - }, - [MAX77843_CHARGER] = { - .name = "CHARGER", - .id = MAX77843_CHARGER, - .ops = &max77843_charger_ops, - .of_match = of_match_ptr("CHARGER"), - .regulators_node = of_match_ptr("regulators"), - .type = REGULATOR_CURRENT, - .owner = THIS_MODULE, - .enable_reg = MAX77843_CHG_REG_CHG_CNFG_00, - .enable_mask = MAX77843_CHG_MASK, - }, -}; - -static struct regmap *max77843_get_regmap(struct max77843 *max77843, int reg_id) -{ - switch (reg_id) { - case MAX77843_SAFEOUT1: - case MAX77843_SAFEOUT2: - return max77843->regmap; - case MAX77843_CHARGER: - return max77843->regmap_chg; - default: - return max77843->regmap; - } -} - -static int max77843_regulator_probe(struct platform_device *pdev) -{ - struct max77843 *max77843 = dev_get_drvdata(pdev->dev.parent); - struct regulator_config config = {}; - int i; - - config.dev = max77843->dev; - config.driver_data = max77843; - - for (i = 0; i < ARRAY_SIZE(max77843_supported_regulators); i++) { - struct regulator_dev *regulator; - - config.regmap = max77843_get_regmap(max77843, - max77843_supported_regulators[i].id); - - regulator = devm_regulator_register(&pdev->dev, - &max77843_supported_regulators[i], &config); - if (IS_ERR(regulator)) { - dev_err(&pdev->dev, - "Failed to regiser regulator-%d\n", i); - return PTR_ERR(regulator); - } - } - - return 0; -} - -static const struct platform_device_id max77843_regulator_id[] = { - { "max77843-regulator", }, - { /* sentinel */ }, -}; - -static struct platform_driver max77843_regulator_driver = { - .driver = { - .name = "max77843-regulator", - }, - .probe = max77843_regulator_probe, - .id_table = max77843_regulator_id, -}; - -static int __init max77843_regulator_init(void) -{ - return platform_driver_register(&max77843_regulator_driver); -} -subsys_initcall(max77843_regulator_init); - -static void __exit max77843_regulator_exit(void) -{ - platform_driver_unregister(&max77843_regulator_driver); -} -module_exit(max77843_regulator_exit); - -MODULE_AUTHOR("Jaewon Kim "); -MODULE_AUTHOR("Beomho Seo "); -MODULE_DESCRIPTION("Maxim MAX77843 regulator driver"); -MODULE_LICENSE("GPL");