diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-11 10:09:45 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-10-11 10:09:45 -0700 |
commit | 7cc4e87f912bbefa440a51856b8d076e5d1f554a (patch) | |
tree | 1b8df8683f3de37d2e8211ffa8d151f60d59af62 /drivers/power/palmtx_battery.c | |
parent | 5ba2f67afb02c5302b2898949ed6fc3b3d37dcf1 (diff) | |
parent | 69fc7eed5f56bce15b239e5110de2575a6970df4 (diff) |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (236 commits)
[ARM] 5300/1: fixup spitz reset during boot
[ARM] 5295/1: make ZONE_DMA optional
[ARM] 5239/1: Palm Zire 72 power management support
[ARM] 5298/1: Drop desc_handle_irq()
[ARM] 5297/1: [KS8695] Fix two compile-time warnings
[ARM] 5296/1: [KS8695] Replace macro's with trailing underscores.
[ARM] pxa: allow multi-machine PCMCIA builds
[ARM] pxa: add preliminary CPUFREQ support for PXA3xx
[ARM] pxa: add missing ACCR bit definitions to pxa3xx-regs.h
[ARM] pxa: rename cpu-pxa.c to cpufreq-pxa2xx.c
[ARM] pxa/zylonite: add support for USB OHCI
[ARM] ohci-pxa27x: use ioremap() and offset for register access
[ARM] ohci-pxa27x: introduce pxa27x_clear_otgph()
[ARM] ohci-pxa27x: use platform_get_{irq,resource} for the resource
[ARM] ohci-pxa27x: move OHCI controller specific registers into the driver
[ARM] ohci-pxa27x: introduce flags to avoid direct access to OHCI registers
[ARM] pxa: move I2S register and bit definitions into pxa2xx-i2s.c
[ARM] pxa: simplify DMA register definitions
[ARM] pxa: make additional DCSR bits valid for PXA3xx
[ARM] pxa: move i2c register and bit definitions into i2c-pxa.c
...
Fixed up conflicts in
arch/arm/mach-versatile/core.c
sound/soc/pxa/pxa2xx-ac97.c
sound/soc/pxa/pxa2xx-i2s.c
manually.
Diffstat (limited to 'drivers/power/palmtx_battery.c')
-rw-r--r-- | drivers/power/palmtx_battery.c | 198 |
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"); |