56 lines
1.3 KiB
C
56 lines
1.3 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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/* Copyright (c) 2013, The Linux Foundation. All rights reserved.
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*/
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/io.h>
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#include <linux/of.h>
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#include <linux/platform_device.h>
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#include <linux/module.h>
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#include <linux/reboot.h>
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#include <linux/pm.h>
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static void __iomem *msm_ps_hold;
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static int do_msm_poweroff(struct sys_off_data *data)
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{
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writel(0, msm_ps_hold);
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mdelay(10000);
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return NOTIFY_DONE;
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}
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static int msm_restart_probe(struct platform_device *pdev)
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{
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msm_ps_hold = devm_platform_ioremap_resource(pdev, 0);
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if (IS_ERR(msm_ps_hold))
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return PTR_ERR(msm_ps_hold);
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devm_register_sys_off_handler(&pdev->dev, SYS_OFF_MODE_RESTART,
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128, do_msm_poweroff, NULL);
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devm_register_sys_off_handler(&pdev->dev, SYS_OFF_MODE_POWER_OFF,
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SYS_OFF_PRIO_DEFAULT, do_msm_poweroff,
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NULL);
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return 0;
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}
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static const struct of_device_id of_msm_restart_match[] = {
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{ .compatible = "qcom,pshold", },
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{},
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};
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MODULE_DEVICE_TABLE(of, of_msm_restart_match);
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static struct platform_driver msm_restart_driver = {
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.probe = msm_restart_probe,
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.driver = {
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.name = "msm-restart",
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.of_match_table = of_match_ptr(of_msm_restart_match),
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},
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};
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builtin_platform_driver(msm_restart_driver);
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