52 lines
1.4 KiB
C
52 lines
1.4 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 int restart_poweroff_do_poweroff(struct sys_off_data *data)
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{
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reboot_mode = REBOOT_HARD;
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machine_restart(NULL);
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return NOTIFY_DONE;
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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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/* Set this handler to low priority to not override an existing handler */
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return devm_register_sys_off_handler(&pdev->dev,
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SYS_OFF_MODE_POWER_OFF,
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SYS_OFF_PRIO_LOW,
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restart_poweroff_do_poweroff,
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NULL);
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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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MODULE_DEVICE_TABLE(of, of_restart_poweroff_match);
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static struct platform_driver restart_poweroff_driver = {
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.probe = restart_poweroff_probe,
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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_ALIAS("platform:poweroff-restart");
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