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// SPDX-License-Identifier: GPL-2.0-only
/*
* 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
*/
#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 int restart_poweroff_do_poweroff(struct sys_off_data *data)
{
reboot_mode = REBOOT_HARD;
machine_restart(NULL);
return NOTIFY_DONE;
}
static int restart_poweroff_probe(struct platform_device *pdev)
{
/* Set this handler to low priority to not override an existing handler */
return devm_register_sys_off_handler(&pdev->dev,
SYS_OFF_MODE_POWER_OFF,
SYS_OFF_PRIO_LOW,
restart_poweroff_do_poweroff,
NULL);
}
static const struct of_device_id of_restart_poweroff_match[] = {
{ .compatible = "restart-poweroff", },
{},
};
MODULE_DEVICE_TABLE(of, of_restart_poweroff_match);
static struct platform_driver restart_poweroff_driver = {
.probe = restart_poweroff_probe,
.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_ALIAS("platform:poweroff-restart");
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