diff options
Diffstat (limited to 'drivers/regulator/fan53555.c')
| -rw-r--r-- | drivers/regulator/fan53555.c | 60 |
1 files changed, 27 insertions, 33 deletions
diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c index 771a06d1900d..dbe477da4e55 100644 --- a/drivers/regulator/fan53555.c +++ b/drivers/regulator/fan53555.c @@ -1,17 +1,13 @@ -/* - * FAN53555 Fairchild Digitally Programmable TinyBuck Regulator Driver. - * - * Supported Part Numbers: - * FAN53555UC00X/01X/03X/04X/05X - * - * Copyright (c) 2012 Marvell Technology Ltd. - * Yunfan Zhang <yfzhang@marvell.com> - * - * This package is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ +// SPDX-License-Identifier: GPL-2.0 +// +// FAN53555 Fairchild Digitally Programmable TinyBuck Regulator Driver. +// +// Supported Part Numbers: +// FAN53555UC00X/01X/03X/04X/05X +// +// Copyright (c) 2012 Marvell Technology Ltd. +// Yunfan Zhang <yfzhang@marvell.com> + #include <linux/module.h> #include <linux/param.h> #include <linux/err.h> @@ -91,10 +87,8 @@ enum { struct fan53555_device_info { enum fan53555_vendor vendor; - struct regmap *regmap; struct device *dev; struct regulator_desc desc; - struct regulator_dev *rdev; struct regulator_init_data *regulator; /* IC Type and Rev */ int chip_id; @@ -106,8 +100,6 @@ struct fan53555_device_info { unsigned int vsel_min; unsigned int vsel_step; unsigned int vsel_count; - /* Voltage slew rate limiting */ - unsigned int slew_rate; /* Mode */ unsigned int mode_reg; unsigned int mode_mask; @@ -125,7 +117,7 @@ static int fan53555_set_suspend_voltage(struct regulator_dev *rdev, int uV) ret = regulator_map_voltage_linear(rdev, uV, uV); if (ret < 0) return ret; - ret = regmap_update_bits(di->regmap, di->sleep_reg, + ret = regmap_update_bits(rdev->regmap, di->sleep_reg, di->desc.vsel_mask, ret); if (ret < 0) return ret; @@ -140,7 +132,7 @@ static int fan53555_set_suspend_enable(struct regulator_dev *rdev) { struct fan53555_device_info *di = rdev_get_drvdata(rdev); - return regmap_update_bits(di->regmap, di->sleep_reg, + return regmap_update_bits(rdev->regmap, di->sleep_reg, VSEL_BUCK_EN, VSEL_BUCK_EN); } @@ -148,7 +140,7 @@ static int fan53555_set_suspend_disable(struct regulator_dev *rdev) { struct fan53555_device_info *di = rdev_get_drvdata(rdev); - return regmap_update_bits(di->regmap, di->sleep_reg, + return regmap_update_bits(rdev->regmap, di->sleep_reg, VSEL_BUCK_EN, 0); } @@ -158,11 +150,11 @@ static int fan53555_set_mode(struct regulator_dev *rdev, unsigned int mode) switch (mode) { case REGULATOR_MODE_FAST: - regmap_update_bits(di->regmap, di->mode_reg, + regmap_update_bits(rdev->regmap, di->mode_reg, di->mode_mask, di->mode_mask); break; case REGULATOR_MODE_NORMAL: - regmap_update_bits(di->regmap, di->vol_reg, di->mode_mask, 0); + regmap_update_bits(rdev->regmap, di->vol_reg, di->mode_mask, 0); break; default: return -EINVAL; @@ -176,7 +168,7 @@ static unsigned int fan53555_get_mode(struct regulator_dev *rdev) unsigned int val; int ret = 0; - ret = regmap_read(di->regmap, di->mode_reg, &val); + ret = regmap_read(rdev->regmap, di->mode_reg, &val); if (ret < 0) return ret; if (val & di->mode_mask) @@ -213,7 +205,7 @@ static int fan53555_set_ramp(struct regulator_dev *rdev, int ramp) return -EINVAL; } - return regmap_update_bits(di->regmap, FAN53555_CONTROL, + return regmap_update_bits(rdev->regmap, FAN53555_CONTROL, CTL_SLEW_MASK, regval << CTL_SLEW_SHIFT); } @@ -396,6 +388,7 @@ static int fan53555_regulator_register(struct fan53555_device_info *di, struct regulator_config *config) { struct regulator_desc *rdesc = &di->desc; + struct regulator_dev *rdev; rdesc->name = "fan53555-reg"; rdesc->supply_name = "vin"; @@ -410,8 +403,8 @@ static int fan53555_regulator_register(struct fan53555_device_info *di, rdesc->vsel_mask = di->vsel_count - 1; rdesc->owner = THIS_MODULE; - di->rdev = devm_regulator_register(di->dev, &di->desc, config); - return PTR_ERR_OR_ZERO(di->rdev); + rdev = devm_regulator_register(di->dev, &di->desc, config); + return PTR_ERR_OR_ZERO(rdev); } static const struct regmap_config fan53555_regmap_config = { @@ -466,6 +459,7 @@ static int fan53555_regulator_probe(struct i2c_client *client, struct fan53555_device_info *di; struct fan53555_platform_data *pdata; struct regulator_config config = { }; + struct regmap *regmap; unsigned int val; int ret; @@ -502,22 +496,22 @@ static int fan53555_regulator_probe(struct i2c_client *client, di->vendor = id->driver_data; } - di->regmap = devm_regmap_init_i2c(client, &fan53555_regmap_config); - if (IS_ERR(di->regmap)) { + regmap = devm_regmap_init_i2c(client, &fan53555_regmap_config); + if (IS_ERR(regmap)) { dev_err(&client->dev, "Failed to allocate regmap!\n"); - return PTR_ERR(di->regmap); + return PTR_ERR(regmap); } di->dev = &client->dev; i2c_set_clientdata(client, di); /* Get chip ID */ - ret = regmap_read(di->regmap, FAN53555_ID1, &val); + ret = regmap_read(regmap, FAN53555_ID1, &val); if (ret < 0) { dev_err(&client->dev, "Failed to get chip ID!\n"); return ret; } di->chip_id = val & DIE_ID; /* Get chip revision */ - ret = regmap_read(di->regmap, FAN53555_ID2, &val); + ret = regmap_read(regmap, FAN53555_ID2, &val); if (ret < 0) { dev_err(&client->dev, "Failed to get chip Rev!\n"); return ret; @@ -534,7 +528,7 @@ static int fan53555_regulator_probe(struct i2c_client *client, /* Register regulator */ config.dev = di->dev; config.init_data = di->regulator; - config.regmap = di->regmap; + config.regmap = regmap; config.driver_data = di; config.of_node = np; |