power: supply: bq24190_charger: Export 5V boost converter as regulator (66b6bef2) · Commits · 戴 / test

drivers/power/supply/bq24190_charger.c

+112 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,9 @@
		#include <linux/of_device.h>
		#include <linux/pm_runtime.h>
		#include <linux/power_supply.h>
		#include <linux/power/bq24190_charger.h>
		#include <linux/regulator/driver.h>
		#include <linux/regulator/machine.h>
		#include <linux/workqueue.h>
		#include <linux/gpio.h>
		#include <linux/i2c.h>
		@@ -513,6 +516,111 @@ static int bq24190_sysfs_create_group(struct bq24190_dev_info *bdi)
		static inline void bq24190_sysfs_remove_group(struct bq24190_dev_info *bdi) {}
		#endif

		#ifdef CONFIG_REGULATOR
		static int bq24190_set_charge_mode(struct regulator_dev *dev, u8 val)
		{
		struct bq24190_dev_info *bdi = rdev_get_drvdata(dev);
		int ret;

		ret = pm_runtime_get_sync(bdi->dev);
		if (ret < 0) {
		dev_warn(bdi->dev, "pm_runtime_get failed: %i\n", ret);
		pm_runtime_put_noidle(bdi->dev);
		return ret;
		}

		ret = bq24190_write_mask(bdi, BQ24190_REG_POC,
		BQ24190_REG_POC_CHG_CONFIG_MASK,
		BQ24190_REG_POC_CHG_CONFIG_SHIFT, val);

		pm_runtime_mark_last_busy(bdi->dev);
		pm_runtime_put_autosuspend(bdi->dev);

		return ret;
		}

		static int bq24190_vbus_enable(struct regulator_dev *dev)
		{
		return bq24190_set_charge_mode(dev, BQ24190_REG_POC_CHG_CONFIG_OTG);
		}

		static int bq24190_vbus_disable(struct regulator_dev *dev)
		{
		return bq24190_set_charge_mode(dev, BQ24190_REG_POC_CHG_CONFIG_CHARGE);
		}

		static int bq24190_vbus_is_enabled(struct regulator_dev *dev)
		{
		struct bq24190_dev_info *bdi = rdev_get_drvdata(dev);
		int ret;
		u8 val;

		ret = pm_runtime_get_sync(bdi->dev);
		if (ret < 0) {
		dev_warn(bdi->dev, "pm_runtime_get failed: %i\n", ret);
		pm_runtime_put_noidle(bdi->dev);
		return ret;
		}

		ret = bq24190_read_mask(bdi, BQ24190_REG_POC,
		BQ24190_REG_POC_CHG_CONFIG_MASK,
		BQ24190_REG_POC_CHG_CONFIG_SHIFT, &val);

		pm_runtime_mark_last_busy(bdi->dev);
		pm_runtime_put_autosuspend(bdi->dev);

		return ret ? ret : val == BQ24190_REG_POC_CHG_CONFIG_OTG;
		}

		static const struct regulator_ops bq24190_vbus_ops = {
		.enable = bq24190_vbus_enable,
		.disable = bq24190_vbus_disable,
		.is_enabled = bq24190_vbus_is_enabled,
		};

		static const struct regulator_desc bq24190_vbus_desc = {
		.name = "usb_otg_vbus",
		.type = REGULATOR_VOLTAGE,
		.owner = THIS_MODULE,
		.ops = &bq24190_vbus_ops,
		.fixed_uV = 5000000,
		.n_voltages = 1,
		};

		static const struct regulator_init_data bq24190_vbus_init_data = {
		.constraints = {
		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
		},
		};

		static int bq24190_register_vbus_regulator(struct bq24190_dev_info *bdi)
		{
		struct bq24190_platform_data *pdata = bdi->dev->platform_data;
		struct regulator_config cfg = { };
		struct regulator_dev *reg;
		int ret = 0;

		cfg.dev = bdi->dev;
		if (pdata && pdata->regulator_init_data)
		cfg.init_data = pdata->regulator_init_data;
		else
		cfg.init_data = &bq24190_vbus_init_data;
		cfg.driver_data = bdi;
		reg = devm_regulator_register(bdi->dev, &bq24190_vbus_desc, &cfg);
		if (IS_ERR(reg)) {
		ret = PTR_ERR(reg);
		dev_err(bdi->dev, "Can't register regulator: %d\n", ret);
		}

		return ret;
		}
		#else
		static int bq24190_register_vbus_regulator(struct bq24190_dev_info *bdi)
		{
		return 0;
		}
		#endif

		static int bq24190_set_config(struct bq24190_dev_info *bdi)
		{
		int ret;
		@@ -1740,6 +1848,10 @@ static int bq24190_probe(struct i2c_client *client,
		goto out_sysfs;
		}

		ret = bq24190_register_vbus_regulator(bdi);
		if (ret < 0)
		goto out_sysfs;

		if (bdi->extcon) {
		INIT_DELAYED_WORK(&bdi->extcon_work, bq24190_extcon_work);
		bdi->extcon_nb.notifier_call = bq24190_extcon_event;

include/linux/power/bq24190_charger.h

0 → 100644

+18 −0

Original line number	Diff line number	Diff line
		/*
		* Platform data for the TI bq24190 battery charger driver.
		*
		* This program 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.
		*/

		#ifndef _BQ24190_CHARGER_H_
		#define _BQ24190_CHARGER_H_

		#include <linux/regulator/machine.h>

		struct bq24190_platform_data {
		const struct regulator_init_data *regulator_init_data;
		};

		#endif

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