linux-stable/drivers/power/reset/restart-poweroff.c
Guenter Roeck 7bae8f0481 power/reset: restart-poweroff: Remove arm dependencies
This driver is now arm specific anymore, so there is no need to include
an arm specific include file. Also drop unnecessary depencency on ARM
from Kconfig.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2015-01-25 22:13:18 +01:00

65 lines
1.6 KiB
C

/*
* Power off by restarting and let u-boot keep hold of the machine
* until the user presses a button for example.
*
* Andrew Lunn <andrew@lunn.ch>
*
* Copyright (C) 2012 Andrew Lunn
*
* 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/init.h>
#include <linux/platform_device.h>
#include <linux/of_platform.h>
#include <linux/module.h>
#include <linux/reboot.h>
static void restart_poweroff_do_poweroff(void)
{
reboot_mode = REBOOT_HARD;
machine_restart(NULL);
}
static int restart_poweroff_probe(struct platform_device *pdev)
{
/* If a pm_power_off function has already been added, leave it alone */
if (pm_power_off != NULL) {
dev_err(&pdev->dev,
"pm_power_off function already registered");
return -EBUSY;
}
pm_power_off = &restart_poweroff_do_poweroff;
return 0;
}
static int restart_poweroff_remove(struct platform_device *pdev)
{
if (pm_power_off == &restart_poweroff_do_poweroff)
pm_power_off = NULL;
return 0;
}
static const struct of_device_id of_restart_poweroff_match[] = {
{ .compatible = "restart-poweroff", },
{},
};
static struct platform_driver restart_poweroff_driver = {
.probe = restart_poweroff_probe,
.remove = restart_poweroff_remove,
.driver = {
.name = "poweroff-restart",
.of_match_table = of_restart_poweroff_match,
},
};
module_platform_driver(restart_poweroff_driver);
MODULE_AUTHOR("Andrew Lunn <andrew@lunn.ch");
MODULE_DESCRIPTION("restart poweroff driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:poweroff-restart");