power: move power supply drivers to power/supply

This moves all power supply drivers from drivers/power/
to drivers/power/supply/. The intention is a cleaner
source tree, since drivers/power/ also contains frameworks
unrelated to power supply, like adaptive voltage scaling.

Signed-off-by: Sebastian Reichel <sre@kernel.org>

1 files changed, 0 insertions, 459 deletions

diff --git a/drivers/power/max8903_charger.c b/drivers/power/max8903_charger.c
deleted file mode 100644
index fdc73d686153..000000000000
--- a/drivers/power/max8903_charger.c
+++ /dev/null
@@ -1,459 +0,0 @@
-/*
- * max8903_charger.c - Maxim 8903 USB/Adapter Charger Driver
- *
- * Copyright (C) 2011 Samsung Electronics
- * MyungJoo Ham <myungjoo.ham@samsung.com>
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- */
-
-#include <linux/gpio.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/of_gpio.h>
-#include <linux/slab.h>
-#include <linux/power_supply.h>
-#include <linux/platform_device.h>
-#include <linux/power/max8903_charger.h>
-
-struct max8903_data {
-	struct max8903_pdata *pdata;
-	struct device *dev;
-	struct power_supply *psy;
-	struct power_supply_desc psy_desc;
-	bool fault;
-	bool usb_in;
-	bool ta_in;
-};
-
-static enum power_supply_property max8903_charger_props[] = {
-	POWER_SUPPLY_PROP_STATUS, /* Charger status output */
-	POWER_SUPPLY_PROP_ONLINE, /* External power source */
-	POWER_SUPPLY_PROP_HEALTH, /* Fault or OK */
-};
-
-static int max8903_get_property(struct power_supply *psy,
-		enum power_supply_property psp,
-		union power_supply_propval *val)
-{
-	struct max8903_data *data = power_supply_get_drvdata(psy);
-
-	switch (psp) {
-	case POWER_SUPPLY_PROP_STATUS:
-		val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
-		if (gpio_is_valid(data->pdata->chg)) {
-			if (gpio_get_value(data->pdata->chg) == 0)
-				val->intval = POWER_SUPPLY_STATUS_CHARGING;
-			else if (data->usb_in || data->ta_in)
-				val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
-			else
-				val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
-		}
-		break;
-	case POWER_SUPPLY_PROP_ONLINE:
-		val->intval = 0;
-		if (data->usb_in || data->ta_in)
-			val->intval = 1;
-		break;
-	case POWER_SUPPLY_PROP_HEALTH:
-		val->intval = POWER_SUPPLY_HEALTH_GOOD;
-		if (data->fault)
-			val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static irqreturn_t max8903_dcin(int irq, void *_data)
-{
-	struct max8903_data *data = _data;
-	struct max8903_pdata *pdata = data->pdata;
-	bool ta_in;
-	enum power_supply_type old_type;
-
-	ta_in = gpio_get_value(pdata->dok) ? false : true;
-
-	if (ta_in == data->ta_in)
-		return IRQ_HANDLED;
-
-	data->ta_in = ta_in;
-
-	/* Set Current-Limit-Mode 1:DC 0:USB */
-	if (gpio_is_valid(pdata->dcm))
-		gpio_set_value(pdata->dcm, ta_in ? 1 : 0);
-
-	/* Charger Enable / Disable (cen is negated) */
-	if (gpio_is_valid(pdata->cen))
-		gpio_set_value(pdata->cen, ta_in ? 0 :
-				(data->usb_in ? 0 : 1));
-
-	dev_dbg(data->dev, "TA(DC-IN) Charger %s.\n", ta_in ?
-			"Connected" : "Disconnected");
-
-	old_type = data->psy_desc.type;
-
-	if (data->ta_in)
-		data->psy_desc.type = POWER_SUPPLY_TYPE_MAINS;
-	else if (data->usb_in)
-		data->psy_desc.type = POWER_SUPPLY_TYPE_USB;
-	else
-		data->psy_desc.type = POWER_SUPPLY_TYPE_BATTERY;
-
-	if (old_type != data->psy_desc.type)
-		power_supply_changed(data->psy);
-
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t max8903_usbin(int irq, void *_data)
-{
-	struct max8903_data *data = _data;
-	struct max8903_pdata *pdata = data->pdata;
-	bool usb_in;
-	enum power_supply_type old_type;
-
-	usb_in = gpio_get_value(pdata->uok) ? false : true;
-
-	if (usb_in == data->usb_in)
-		return IRQ_HANDLED;
-
-	data->usb_in = usb_in;
-
-	/* Do not touch Current-Limit-Mode */
-
-	/* Charger Enable / Disable (cen is negated) */
-	if (gpio_is_valid(pdata->cen))
-		gpio_set_value(pdata->cen, usb_in ? 0 :
-				(data->ta_in ? 0 : 1));
-
-	dev_dbg(data->dev, "USB Charger %s.\n", usb_in ?
-			"Connected" : "Disconnected");
-
-	old_type = data->psy_desc.type;
-
-	if (data->ta_in)
-		data->psy_desc.type = POWER_SUPPLY_TYPE_MAINS;
-	else if (data->usb_in)
-		data->psy_desc.type = POWER_SUPPLY_TYPE_USB;
-	else
-		data->psy_desc.type = POWER_SUPPLY_TYPE_BATTERY;
-
-	if (old_type != data->psy_desc.type)
-		power_supply_changed(data->psy);
-
-	return IRQ_HANDLED;
-}
-
-static irqreturn_t max8903_fault(int irq, void *_data)
-{
-	struct max8903_data *data = _data;
-	struct max8903_pdata *pdata = data->pdata;
-	bool fault;
-
-	fault = gpio_get_value(pdata->flt) ? false : true;
-
-	if (fault == data->fault)
-		return IRQ_HANDLED;
-
-	data->fault = fault;
-
-	if (fault)
-		dev_err(data->dev, "Charger suffers a fault and stops.\n");
-	else
-		dev_err(data->dev, "Charger recovered from a fault.\n");
-
-	return IRQ_HANDLED;
-}
-
-static struct max8903_pdata *max8903_parse_dt_data(struct device *dev)
-{
-	struct device_node *np = dev->of_node;
-	struct max8903_pdata *pdata = NULL;
-
-	if (!np)
-		return NULL;
-
-	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
-	if (!pdata)
-		return NULL;
-
-	pdata->dc_valid = false;
-	pdata->usb_valid = false;
-
-	pdata->cen = of_get_named_gpio(np, "cen-gpios", 0);
-	if (!gpio_is_valid(pdata->cen))
-		pdata->cen = -EINVAL;
-
-	pdata->chg = of_get_named_gpio(np, "chg-gpios", 0);
-	if (!gpio_is_valid(pdata->chg))
-		pdata->chg = -EINVAL;
-
-	pdata->flt = of_get_named_gpio(np, "flt-gpios", 0);
-	if (!gpio_is_valid(pdata->flt))
-		pdata->flt = -EINVAL;
-
-	pdata->usus = of_get_named_gpio(np, "usus-gpios", 0);
-	if (!gpio_is_valid(pdata->usus))
-		pdata->usus = -EINVAL;
-
-	pdata->dcm = of_get_named_gpio(np, "dcm-gpios", 0);
-	if (!gpio_is_valid(pdata->dcm))
-		pdata->dcm = -EINVAL;
-
-	pdata->dok = of_get_named_gpio(np, "dok-gpios", 0);
-	if (!gpio_is_valid(pdata->dok))
-		pdata->dok = -EINVAL;
-	else
-		pdata->dc_valid = true;
-
-	pdata->uok = of_get_named_gpio(np, "uok-gpios", 0);
-	if (!gpio_is_valid(pdata->uok))
-		pdata->uok = -EINVAL;
-	else
-		pdata->usb_valid = true;
-
-	return pdata;
-}
-
-static int max8903_setup_gpios(struct platform_device *pdev)
-{
-	struct max8903_data *data = platform_get_drvdata(pdev);
-	struct device *dev = &pdev->dev;
-	struct max8903_pdata *pdata = pdev->dev.platform_data;
-	int ret = 0;
-	int gpio;
-	int ta_in = 0;
-	int usb_in = 0;
-
-	if (pdata->dc_valid) {
-		if (gpio_is_valid(pdata->dok)) {
-			ret = devm_gpio_request(dev, pdata->dok,
-						data->psy_desc.name);
-			if (ret) {
-				dev_err(dev,
-					"Failed GPIO request for dok: %d err %d\n",
-					pdata->dok, ret);
-				return ret;
-			}
-
-			gpio = pdata->dok; /* PULL_UPed Interrupt */
-			ta_in = gpio_get_value(gpio) ? 0 : 1;
-		} else {
-			dev_err(dev, "When DC is wired, DOK should be wired as well.\n");
-			return -EINVAL;
-		}
-	}
-
-	if (gpio_is_valid(pdata->dcm)) {
-		ret = devm_gpio_request(dev, pdata->dcm, data->psy_desc.name);
-		if (ret) {
-			dev_err(dev,
-				"Failed GPIO request for dcm: %d err %d\n",
-				pdata->dcm, ret);
-			return ret;
-		}
-
-		gpio = pdata->dcm; /* Output */
-		gpio_set_value(gpio, ta_in);
-	}
-
-	if (pdata->usb_valid) {
-		if (gpio_is_valid(pdata->uok)) {
-			ret = devm_gpio_request(dev, pdata->uok,
-						data->psy_desc.name);
-			if (ret) {
-				dev_err(dev,
-					"Failed GPIO request for uok: %d err %d\n",
-					pdata->uok, ret);
-				return ret;
-			}
-
-			gpio = pdata->uok;
-			usb_in = gpio_get_value(gpio) ? 0 : 1;
-		} else {
-			dev_err(dev, "When USB is wired, UOK should be wired."
-					"as well.\n");
-			return -EINVAL;
-		}
-	}
-
-	if (gpio_is_valid(pdata->cen)) {
-		ret = devm_gpio_request(dev, pdata->cen, data->psy_desc.name);
-		if (ret) {
-			dev_err(dev,
-				"Failed GPIO request for cen: %d err %d\n",
-				pdata->cen, ret);
-			return ret;
-		}
-
-		gpio_set_value(pdata->cen, (ta_in || usb_in) ? 0 : 1);
-	}
-
-	if (gpio_is_valid(pdata->chg)) {
-		ret = devm_gpio_request(dev, pdata->chg, data->psy_desc.name);
-		if (ret) {
-			dev_err(dev,
-				"Failed GPIO request for chg: %d err %d\n",
-				pdata->chg, ret);
-			return ret;
-		}
-	}
-
-	if (gpio_is_valid(pdata->flt)) {
-		ret = devm_gpio_request(dev, pdata->flt, data->psy_desc.name);
-		if (ret) {
-			dev_err(dev,
-				"Failed GPIO request for flt: %d err %d\n",
-				pdata->flt, ret);
-			return ret;
-		}
-	}
-
-	if (gpio_is_valid(pdata->usus)) {
-		ret = devm_gpio_request(dev, pdata->usus, data->psy_desc.name);
-		if (ret) {
-			dev_err(dev,
-				"Failed GPIO request for usus: %d err %d\n",
-				pdata->usus, ret);
-			return ret;
-		}
-	}
-
-	data->fault = false;
-	data->ta_in = ta_in;
-	data->usb_in = usb_in;
-
-	return 0;
-}
-
-static int max8903_probe(struct platform_device *pdev)
-{
-	struct max8903_data *data;
-	struct device *dev = &pdev->dev;
-	struct max8903_pdata *pdata = pdev->dev.platform_data;
-	struct power_supply_config psy_cfg = {};
-	int ret = 0;
-
-	data = devm_kzalloc(dev, sizeof(struct max8903_data), GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	if (IS_ENABLED(CONFIG_OF) && !pdata && dev->of_node)
-		pdata = max8903_parse_dt_data(dev);
-
-	if (!pdata) {
-		dev_err(dev, "No platform data.\n");
-		return -EINVAL;
-	}
-
-	pdev->dev.platform_data = pdata;
-	data->pdata = pdata;
-	data->dev = dev;
-	platform_set_drvdata(pdev, data);
-
-	if (pdata->dc_valid == false && pdata->usb_valid == false) {
-		dev_err(dev, "No valid power sources.\n");
-		return -EINVAL;
-	}
-
-	ret = max8903_setup_gpios(pdev);
-	if (ret)
-		return ret;
-
-	data->psy_desc.name = "max8903_charger";
-	data->psy_desc.type = (data->ta_in) ? POWER_SUPPLY_TYPE_MAINS :
-			((data->usb_in) ? POWER_SUPPLY_TYPE_USB :
-			 POWER_SUPPLY_TYPE_BATTERY);
-	data->psy_desc.get_property = max8903_get_property;
-	data->psy_desc.properties = max8903_charger_props;
-	data->psy_desc.num_properties = ARRAY_SIZE(max8903_charger_props);
-
-	psy_cfg.of_node = dev->of_node;
-	psy_cfg.drv_data = data;
-
-	data->psy = devm_power_supply_register(dev, &data->psy_desc, &psy_cfg);
-	if (IS_ERR(data->psy)) {
-		dev_err(dev, "failed: power supply register.\n");
-		return PTR_ERR(data->psy);
-	}
-
-	if (pdata->dc_valid) {
-		ret = devm_request_threaded_irq(dev, gpio_to_irq(pdata->dok),
-					NULL, max8903_dcin,
-					IRQF_TRIGGER_FALLING |
-					IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-					"MAX8903 DC IN", data);
-		if (ret) {
-			dev_err(dev, "Cannot request irq %d for DC (%d)\n",
-					gpio_to_irq(pdata->dok), ret);
-			return ret;
-		}
-	}
-
-	if (pdata->usb_valid) {
-		ret = devm_request_threaded_irq(dev, gpio_to_irq(pdata->uok),
-					NULL, max8903_usbin,
-					IRQF_TRIGGER_FALLING |
-					IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-					"MAX8903 USB IN", data);
-		if (ret) {
-			dev_err(dev, "Cannot request irq %d for USB (%d)\n",
-					gpio_to_irq(pdata->uok), ret);
-			return ret;
-		}
-	}
-
-	if (gpio_is_valid(pdata->flt)) {
-		ret = devm_request_threaded_irq(dev, gpio_to_irq(pdata->flt),
-					NULL, max8903_fault,
-					IRQF_TRIGGER_FALLING |
-					IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-					"MAX8903 Fault", data);
-		if (ret) {
-			dev_err(dev, "Cannot request irq %d for Fault (%d)\n",
-					gpio_to_irq(pdata->flt), ret);
-			return ret;
-		}
-	}
-
-	return 0;
-}
-
-static const struct of_device_id max8903_match_ids[] = {
-	{ .compatible = "maxim,max8903", },
-	{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, max8903_match_ids);
-
-static struct platform_driver max8903_driver = {
-	.probe	= max8903_probe,
-	.driver = {
-		.name	= "max8903-charger",
-		.of_match_table = max8903_match_ids
-	},
-};
-
-module_platform_driver(max8903_driver);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("MAX8903 Charger Driver");
-MODULE_AUTHOR("MyungJoo Ham <myungjoo.ham@samsung.com>");
-MODULE_ALIAS("platform:max8903-charger");