1 files changed, 55 insertions, 0 deletions
diff --git a/drivers/power/reset/msm-poweroff.c b/drivers/power/reset/msm-poweroff.c
new file mode 100644
index 000000000000..c7eb6dc8e90a
--- /dev/null
+++ b/drivers/power/reset/msm-poweroff.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright (c) 2013, The Linux Foundation. All rights reserved.
+ */
+
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/reboot.h>
+#include <linux/pm.h>
+
+static void __iomem *msm_ps_hold;
+
+static int do_msm_poweroff(struct sys_off_data *data)
+{
+	writel(0, msm_ps_hold);
+	mdelay(10000);
+
+	return NOTIFY_DONE;
+}
+
+static int msm_restart_probe(struct platform_device *pdev)
+{
+	msm_ps_hold = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(msm_ps_hold))
+		return PTR_ERR(msm_ps_hold);
+
+	devm_register_sys_off_handler(&pdev->dev, SYS_OFF_MODE_RESTART,
+				      128, do_msm_poweroff, NULL);
+
+	devm_register_sys_off_handler(&pdev->dev, SYS_OFF_MODE_POWER_OFF,
+				      SYS_OFF_PRIO_DEFAULT, do_msm_poweroff,
+				      NULL);
+
+	return 0;
+}
+
+static const struct of_device_id of_msm_restart_match[] = {
+	{ .compatible = "qcom,pshold", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, of_msm_restart_match);
+
+static struct platform_driver msm_restart_driver = {
+	.probe = msm_restart_probe,
+	.driver = {
+		.name = "msm-restart",
+		.of_match_table = of_match_ptr(of_msm_restart_match),
+	},
+};
+builtin_platform_driver(msm_restart_driver);