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, 422 deletions

diff --git a/drivers/power/collie_battery.c b/drivers/power/collie_battery.c
deleted file mode 100644
index 3a0bc608d4b5..000000000000
--- a/drivers/power/collie_battery.c
+++ /dev/null
@@ -1,422 +0,0 @@
-/*
- * Battery and Power Management code for the Sharp SL-5x00
- *
- * Copyright (C) 2009 Thomas Kunze
- *
- * based on tosa_battery.c
- *
- * 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.
- *
- */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/power_supply.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/gpio.h>
-#include <linux/mfd/ucb1x00.h>
-
-#include <asm/mach/sharpsl_param.h>
-#include <asm/mach-types.h>
-#include <mach/collie.h>
-
-static DEFINE_MUTEX(bat_lock); /* protects gpio pins */
-static struct work_struct bat_work;
-static struct ucb1x00 *ucb;
-
-struct collie_bat {
-	int status;
-	struct power_supply *psy;
-	int full_chrg;
-
-	struct mutex work_lock; /* protects data */
-
-	bool (*is_present)(struct collie_bat *bat);
-	int gpio_full;
-	int gpio_charge_on;
-
-	int technology;
-
-	int gpio_bat;
-	int adc_bat;
-	int adc_bat_divider;
-	int bat_max;
-	int bat_min;
-
-	int gpio_temp;
-	int adc_temp;
-	int adc_temp_divider;
-};
-
-static struct collie_bat collie_bat_main;
-
-static unsigned long collie_read_bat(struct collie_bat *bat)
-{
-	unsigned long value = 0;
-
-	if (bat->gpio_bat < 0 || bat->adc_bat < 0)
-		return 0;
-	mutex_lock(&bat_lock);
-	gpio_set_value(bat->gpio_bat, 1);
-	msleep(5);
-	ucb1x00_adc_enable(ucb);
-	value = ucb1x00_adc_read(ucb, bat->adc_bat, UCB_SYNC);
-	ucb1x00_adc_disable(ucb);
-	gpio_set_value(bat->gpio_bat, 0);
-	mutex_unlock(&bat_lock);
-	value = value * 1000000 / bat->adc_bat_divider;
-
-	return value;
-}
-
-static unsigned long collie_read_temp(struct collie_bat *bat)
-{
-	unsigned long value = 0;
-	if (bat->gpio_temp < 0 || bat->adc_temp < 0)
-		return 0;
-
-	mutex_lock(&bat_lock);
-	gpio_set_value(bat->gpio_temp, 1);
-	msleep(5);
-	ucb1x00_adc_enable(ucb);
-	value = ucb1x00_adc_read(ucb, bat->adc_temp, UCB_SYNC);
-	ucb1x00_adc_disable(ucb);
-	gpio_set_value(bat->gpio_temp, 0);
-	mutex_unlock(&bat_lock);
-
-	value = value * 10000 / bat->adc_temp_divider;
-
-	return value;
-}
-
-static int collie_bat_get_property(struct power_supply *psy,
-			    enum power_supply_property psp,
-			    union power_supply_propval *val)
-{
-	int ret = 0;
-	struct collie_bat *bat = power_supply_get_drvdata(psy);
-
-	if (bat->is_present && !bat->is_present(bat)
-			&& psp != POWER_SUPPLY_PROP_PRESENT) {
-		return -ENODEV;
-	}
-
-	switch (psp) {
-	case POWER_SUPPLY_PROP_STATUS:
-		val->intval = bat->status;
-		break;
-	case POWER_SUPPLY_PROP_TECHNOLOGY:
-		val->intval = bat->technology;
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-		val->intval = collie_read_bat(bat);
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
-		if (bat->full_chrg == -1)
-			val->intval = bat->bat_max;
-		else
-			val->intval = bat->full_chrg;
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
-		val->intval = bat->bat_max;
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
-		val->intval = bat->bat_min;
-		break;
-	case POWER_SUPPLY_PROP_TEMP:
-		val->intval = collie_read_temp(bat);
-		break;
-	case POWER_SUPPLY_PROP_PRESENT:
-		val->intval = bat->is_present ? bat->is_present(bat) : 1;
-		break;
-	default:
-		ret = -EINVAL;
-		break;
-	}
-	return ret;
-}
-
-static void collie_bat_external_power_changed(struct power_supply *psy)
-{
-	schedule_work(&bat_work);
-}
-
-static irqreturn_t collie_bat_gpio_isr(int irq, void *data)
-{
-	pr_info("collie_bat_gpio irq\n");
-	schedule_work(&bat_work);
-	return IRQ_HANDLED;
-}
-
-static void collie_bat_update(struct collie_bat *bat)
-{
-	int old;
-	struct power_supply *psy = bat->psy;
-
-	mutex_lock(&bat->work_lock);
-
-	old = bat->status;
-
-	if (bat->is_present && !bat->is_present(bat)) {
-		printk(KERN_NOTICE "%s not present\n", psy->desc->name);
-		bat->status = POWER_SUPPLY_STATUS_UNKNOWN;
-		bat->full_chrg = -1;
-	} else if (power_supply_am_i_supplied(psy)) {
-		if (bat->status == POWER_SUPPLY_STATUS_DISCHARGING) {
-			gpio_set_value(bat->gpio_charge_on, 1);
-			mdelay(15);
-		}
-
-		if (gpio_get_value(bat->gpio_full)) {
-			if (old == POWER_SUPPLY_STATUS_CHARGING ||
-					bat->full_chrg == -1)
-				bat->full_chrg = collie_read_bat(bat);
-
-			gpio_set_value(bat->gpio_charge_on, 0);
-			bat->status = POWER_SUPPLY_STATUS_FULL;
-		} else {
-			gpio_set_value(bat->gpio_charge_on, 1);
-			bat->status = POWER_SUPPLY_STATUS_CHARGING;
-		}
-	} else {
-		gpio_set_value(bat->gpio_charge_on, 0);
-		bat->status = POWER_SUPPLY_STATUS_DISCHARGING;
-	}
-
-	if (old != bat->status)
-		power_supply_changed(psy);
-
-	mutex_unlock(&bat->work_lock);
-}
-
-static void collie_bat_work(struct work_struct *work)
-{
-	collie_bat_update(&collie_bat_main);
-}
-
-
-static enum power_supply_property collie_bat_main_props[] = {
-	POWER_SUPPLY_PROP_STATUS,
-	POWER_SUPPLY_PROP_TECHNOLOGY,
-	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
-	POWER_SUPPLY_PROP_VOLTAGE_NOW,
-	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
-	POWER_SUPPLY_PROP_VOLTAGE_MAX,
-	POWER_SUPPLY_PROP_PRESENT,
-	POWER_SUPPLY_PROP_TEMP,
-};
-
-static enum power_supply_property collie_bat_bu_props[] = {
-	POWER_SUPPLY_PROP_STATUS,
-	POWER_SUPPLY_PROP_TECHNOLOGY,
-	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
-	POWER_SUPPLY_PROP_VOLTAGE_NOW,
-	POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
-	POWER_SUPPLY_PROP_VOLTAGE_MAX,
-	POWER_SUPPLY_PROP_PRESENT,
-};
-
-static const struct power_supply_desc collie_bat_main_desc = {
-	.name		= "main-battery",
-	.type		= POWER_SUPPLY_TYPE_BATTERY,
-	.properties	= collie_bat_main_props,
-	.num_properties	= ARRAY_SIZE(collie_bat_main_props),
-	.get_property	= collie_bat_get_property,
-	.external_power_changed = collie_bat_external_power_changed,
-	.use_for_apm	= 1,
-};
-
-static struct collie_bat collie_bat_main = {
-	.status = POWER_SUPPLY_STATUS_DISCHARGING,
-	.full_chrg = -1,
-	.psy = NULL,
-
-	.gpio_full = COLLIE_GPIO_CO,
-	.gpio_charge_on = COLLIE_GPIO_CHARGE_ON,
-
-	.technology = POWER_SUPPLY_TECHNOLOGY_LIPO,
-
-	.gpio_bat = COLLIE_GPIO_MBAT_ON,
-	.adc_bat = UCB_ADC_INP_AD1,
-	.adc_bat_divider = 155,
-	.bat_max = 4310000,
-	.bat_min = 1551 * 1000000 / 414,
-
-	.gpio_temp = COLLIE_GPIO_TMP_ON,
-	.adc_temp = UCB_ADC_INP_AD0,
-	.adc_temp_divider = 10000,
-};
-
-static const struct power_supply_desc collie_bat_bu_desc = {
-	.name		= "backup-battery",
-	.type		= POWER_SUPPLY_TYPE_BATTERY,
-	.properties	= collie_bat_bu_props,
-	.num_properties	= ARRAY_SIZE(collie_bat_bu_props),
-	.get_property	= collie_bat_get_property,
-	.external_power_changed = collie_bat_external_power_changed,
-};
-
-static struct collie_bat collie_bat_bu = {
-	.status = POWER_SUPPLY_STATUS_UNKNOWN,
-	.full_chrg = -1,
-	.psy = NULL,
-
-	.gpio_full = -1,
-	.gpio_charge_on = -1,
-
-	.technology = POWER_SUPPLY_TECHNOLOGY_LiMn,
-
-	.gpio_bat = COLLIE_GPIO_BBAT_ON,
-	.adc_bat = UCB_ADC_INP_AD1,
-	.adc_bat_divider = 155,
-	.bat_max = 3000000,
-	.bat_min = 1900000,
-
-	.gpio_temp = -1,
-	.adc_temp = -1,
-	.adc_temp_divider = -1,
-};
-
-static struct gpio collie_batt_gpios[] = {
-	{ COLLIE_GPIO_CO,	    GPIOF_IN,		"main battery full" },
-	{ COLLIE_GPIO_MAIN_BAT_LOW, GPIOF_IN,		"main battery low" },
-	{ COLLIE_GPIO_CHARGE_ON,    GPIOF_OUT_INIT_LOW,	"main charge on" },
-	{ COLLIE_GPIO_MBAT_ON,	    GPIOF_OUT_INIT_LOW,	"main battery" },
-	{ COLLIE_GPIO_TMP_ON,	    GPIOF_OUT_INIT_LOW,	"main battery temp" },
-	{ COLLIE_GPIO_BBAT_ON,	    GPIOF_OUT_INIT_LOW,	"backup battery" },
-};
-
-#ifdef CONFIG_PM
-static int wakeup_enabled;
-
-static int collie_bat_suspend(struct ucb1x00_dev *dev)
-{
-	/* flush all pending status updates */
-	flush_work(&bat_work);
-
-	if (device_may_wakeup(&dev->ucb->dev) &&
-	    collie_bat_main.status == POWER_SUPPLY_STATUS_CHARGING)
-		wakeup_enabled = !enable_irq_wake(gpio_to_irq(COLLIE_GPIO_CO));
-	else
-		wakeup_enabled = 0;
-
-	return 0;
-}
-
-static int collie_bat_resume(struct ucb1x00_dev *dev)
-{
-	if (wakeup_enabled)
-		disable_irq_wake(gpio_to_irq(COLLIE_GPIO_CO));
-
-	/* things may have changed while we were away */
-	schedule_work(&bat_work);
-	return 0;
-}
-#else
-#define collie_bat_suspend NULL
-#define collie_bat_resume NULL
-#endif
-
-static int collie_bat_probe(struct ucb1x00_dev *dev)
-{
-	int ret;
-	struct power_supply_config psy_main_cfg = {}, psy_bu_cfg = {};
-
-	if (!machine_is_collie())
-		return -ENODEV;
-
-	ucb = dev->ucb;
-
-	ret = gpio_request_array(collie_batt_gpios,
-				 ARRAY_SIZE(collie_batt_gpios));
-	if (ret)
-		return ret;
-
-	mutex_init(&collie_bat_main.work_lock);
-
-	INIT_WORK(&bat_work, collie_bat_work);
-
-	psy_main_cfg.drv_data = &collie_bat_main;
-	collie_bat_main.psy = power_supply_register(&dev->ucb->dev,
-						    &collie_bat_main_desc,
-						    &psy_main_cfg);
-	if (IS_ERR(collie_bat_main.psy)) {
-		ret = PTR_ERR(collie_bat_main.psy);
-		goto err_psy_reg_main;
-	}
-
-	psy_bu_cfg.drv_data = &collie_bat_bu;
-	collie_bat_bu.psy = power_supply_register(&dev->ucb->dev,
-						  &collie_bat_bu_desc,
-						  &psy_bu_cfg);
-	if (IS_ERR(collie_bat_bu.psy)) {
-		ret = PTR_ERR(collie_bat_bu.psy);
-		goto err_psy_reg_bu;
-	}
-
-	ret = request_irq(gpio_to_irq(COLLIE_GPIO_CO),
-				collie_bat_gpio_isr,
-				IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
-				"main full", &collie_bat_main);
-	if (ret)
-		goto err_irq;
-
-	device_init_wakeup(&ucb->dev, 1);
-	schedule_work(&bat_work);
-
-	return 0;
-
-err_irq:
-	power_supply_unregister(collie_bat_bu.psy);
-err_psy_reg_bu:
-	power_supply_unregister(collie_bat_main.psy);
-err_psy_reg_main:
-
-	/* see comment in collie_bat_remove */
-	cancel_work_sync(&bat_work);
-	gpio_free_array(collie_batt_gpios, ARRAY_SIZE(collie_batt_gpios));
-	return ret;
-}
-
-static void collie_bat_remove(struct ucb1x00_dev *dev)
-{
-	free_irq(gpio_to_irq(COLLIE_GPIO_CO), &collie_bat_main);
-
-	power_supply_unregister(collie_bat_bu.psy);
-	power_supply_unregister(collie_bat_main.psy);
-
-	/*
-	 * Now cancel the bat_work.  We won't get any more schedules,
-	 * since all sources (isr and external_power_changed) are
-	 * unregistered now.
-	 */
-	cancel_work_sync(&bat_work);
-	gpio_free_array(collie_batt_gpios, ARRAY_SIZE(collie_batt_gpios));
-}
-
-static struct ucb1x00_driver collie_bat_driver = {
-	.add		= collie_bat_probe,
-	.remove		= collie_bat_remove,
-	.suspend	= collie_bat_suspend,
-	.resume		= collie_bat_resume,
-};
-
-static int __init collie_bat_init(void)
-{
-	return ucb1x00_register_driver(&collie_bat_driver);
-}
-
-static void __exit collie_bat_exit(void)
-{
-	ucb1x00_unregister_driver(&collie_bat_driver);
-}
-
-module_init(collie_bat_init);
-module_exit(collie_bat_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Thomas Kunze");
-MODULE_DESCRIPTION("Collie battery driver");