[ARM] 5248/1: wm97xx generic battery driver

This patch adds generic battery driver for wm97xx chips.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 0 insertions, 198 deletions

diff --git a/drivers/power/palmtx_battery.c b/drivers/power/palmtx_battery.c
deleted file mode 100644
index 7035bfa41c6..00000000000
--- a/drivers/power/palmtx_battery.c
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * linux/drivers/power/palmtx_battery.c
- *
- * Battery measurement code for Palm T|X Handheld computer
- *
- * based on tosa_battery.c
- *
- * Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
- *
- * 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/wm97xx.h>
-#include <linux/delay.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/gpio.h>
-
-#include <asm/mach-types.h>
-#include <mach/palmtx.h>
-
-static DEFINE_MUTEX(bat_lock);
-static struct work_struct bat_work;
-struct mutex work_lock;
-int bat_status = POWER_SUPPLY_STATUS_DISCHARGING;
-
-static unsigned long palmtx_read_bat(struct power_supply *bat_ps)
-{
-	return wm97xx_read_aux_adc(bat_ps->dev->parent->driver_data,
-				    WM97XX_AUX_ID3) * 1000 / 414;
-}
-
-static unsigned long palmtx_read_temp(struct power_supply *bat_ps)
-{
-	return wm97xx_read_aux_adc(bat_ps->dev->parent->driver_data,
-				    WM97XX_AUX_ID2);
-}
-
-static int palmtx_bat_get_property(struct power_supply *bat_ps,
-			    enum power_supply_property psp,
-			    union power_supply_propval *val)
-{
-	switch (psp) {
-	case POWER_SUPPLY_PROP_STATUS:
-		val->intval = bat_status;
-		break;
-	case POWER_SUPPLY_PROP_TECHNOLOGY:
-		val->intval = POWER_SUPPLY_TECHNOLOGY_LIPO;
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-		val->intval = palmtx_read_bat(bat_ps);
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
-	case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN:
-		val->intval = PALMTX_BAT_MAX_VOLTAGE;
-		break;
-	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
-		val->intval = PALMTX_BAT_MIN_VOLTAGE;
-		break;
-	case POWER_SUPPLY_PROP_TEMP:
-		val->intval = palmtx_read_temp(bat_ps);
-		break;
-	case POWER_SUPPLY_PROP_PRESENT:
-		val->intval = 1;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return 0;
-}
-
-static void palmtx_bat_external_power_changed(struct power_supply *bat_ps)
-{
-	schedule_work(&bat_work);
-}
-
-static char *status_text[] = {
-	[POWER_SUPPLY_STATUS_UNKNOWN] =		"Unknown",
-	[POWER_SUPPLY_STATUS_CHARGING] =	"Charging",
-	[POWER_SUPPLY_STATUS_DISCHARGING] =	"Discharging",
-};
-
-static void palmtx_bat_update(struct power_supply *bat_ps)
-{
-	int old_status = bat_status;
-
-	mutex_lock(&work_lock);
-
-	bat_status = gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT) ?
-				    POWER_SUPPLY_STATUS_CHARGING :
-				    POWER_SUPPLY_STATUS_DISCHARGING;
-
-	if (old_status != bat_status) {
-		pr_debug("%s %s -> %s\n", bat_ps->name,
-				status_text[old_status],
-				status_text[bat_status]);
-		power_supply_changed(bat_ps);
-	}
-
-	mutex_unlock(&work_lock);
-}
-
-static enum power_supply_property palmtx_bat_main_props[] = {
-	POWER_SUPPLY_PROP_STATUS,
-	POWER_SUPPLY_PROP_TECHNOLOGY,
-	POWER_SUPPLY_PROP_VOLTAGE_NOW,
-	POWER_SUPPLY_PROP_VOLTAGE_MAX,
-	POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
-	POWER_SUPPLY_PROP_TEMP,
-	POWER_SUPPLY_PROP_PRESENT,
-};
-
-struct power_supply bat_ps = {
-	.name			= "main-battery",
-	.type			= POWER_SUPPLY_TYPE_BATTERY,
-	.properties		= palmtx_bat_main_props,
-	.num_properties		= ARRAY_SIZE(palmtx_bat_main_props),
-	.get_property		= palmtx_bat_get_property,
-	.external_power_changed = palmtx_bat_external_power_changed,
-	.use_for_apm		= 1,
-};
-
-static void palmtx_bat_work(struct work_struct *work)
-{
-	palmtx_bat_update(&bat_ps);
-}
-
-#ifdef CONFIG_PM
-static int palmtx_bat_suspend(struct platform_device *dev, pm_message_t state)
-{
-	flush_scheduled_work();
-	return 0;
-}
-
-static int palmtx_bat_resume(struct platform_device *dev)
-{
-	schedule_work(&bat_work);
-	return 0;
-}
-#else
-#define palmtx_bat_suspend NULL
-#define palmtx_bat_resume NULL
-#endif
-
-static int __devinit palmtx_bat_probe(struct platform_device *dev)
-{
-	int ret = 0;
-
-	if (!machine_is_palmtx())
-		return -ENODEV;
-
-	mutex_init(&work_lock);
-
-	INIT_WORK(&bat_work, palmtx_bat_work);
-
-	ret = power_supply_register(&dev->dev, &bat_ps);
-	if (!ret)
-		schedule_work(&bat_work);
-
-	return ret;
-}
-
-static int __devexit palmtx_bat_remove(struct platform_device *dev)
-{
-	power_supply_unregister(&bat_ps);
-	return 0;
-}
-
-static struct platform_driver palmtx_bat_driver = {
-	.driver.name	= "wm97xx-battery",
-	.driver.owner	= THIS_MODULE,
-	.probe		= palmtx_bat_probe,
-	.remove		= __devexit_p(palmtx_bat_remove),
-	.suspend	= palmtx_bat_suspend,
-	.resume		= palmtx_bat_resume,
-};
-
-static int __init palmtx_bat_init(void)
-{
-	return platform_driver_register(&palmtx_bat_driver);
-}
-
-static void __exit palmtx_bat_exit(void)
-{
-	platform_driver_unregister(&palmtx_bat_driver);
-}
-
-module_init(palmtx_bat_init);
-module_exit(palmtx_bat_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
-MODULE_DESCRIPTION("Palm T|X battery driver");