d2912cb15b
Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Power off by restarting and let u-boot keep hold of the machine
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* until the user presses a button for example.
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*
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* Andrew Lunn <andrew@lunn.ch>
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*
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* Copyright (C) 2012 Andrew Lunn
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/of_platform.h>
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#include <linux/module.h>
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#include <linux/reboot.h>
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static void restart_poweroff_do_poweroff(void)
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{
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reboot_mode = REBOOT_HARD;
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machine_restart(NULL);
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}
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static int restart_poweroff_probe(struct platform_device *pdev)
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{
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/* If a pm_power_off function has already been added, leave it alone */
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if (pm_power_off != NULL) {
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dev_err(&pdev->dev,
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"pm_power_off function already registered");
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return -EBUSY;
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}
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pm_power_off = &restart_poweroff_do_poweroff;
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return 0;
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}
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static int restart_poweroff_remove(struct platform_device *pdev)
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{
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if (pm_power_off == &restart_poweroff_do_poweroff)
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pm_power_off = NULL;
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return 0;
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}
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static const struct of_device_id of_restart_poweroff_match[] = {
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{ .compatible = "restart-poweroff", },
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{},
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};
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static struct platform_driver restart_poweroff_driver = {
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.probe = restart_poweroff_probe,
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.remove = restart_poweroff_remove,
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.driver = {
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.name = "poweroff-restart",
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.of_match_table = of_restart_poweroff_match,
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},
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};
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module_platform_driver(restart_poweroff_driver);
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MODULE_AUTHOR("Andrew Lunn <andrew@lunn.ch");
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MODULE_DESCRIPTION("restart poweroff driver");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:poweroff-restart");
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