Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 6724534c authored by Guenter Roeck's avatar Guenter Roeck Committed by Sebastian Reichel
Browse files

power/reset: hisi: Register with kernel restart handler 



Register with kernel restart handler instead of setting arm_pm_restart directly.

Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent f59a42d4

drivers/power/reset/hisi-reboot.c

+16 −4
Original line number Diff line number Diff line
@@ -14,27 +14,36 @@ 
#include <linux/delay.h>

#include <linux/io.h>

#include <linux/module.h>

#include <linux/notifier.h>

#include <linux/of_address.h>

#include <linux/platform_device.h>

#include <linux/reboot.h>



#include <asm/proc-fns.h>

#include <asm/system_misc.h>



static void __iomem *base;

static u32 reboot_offset;



static void hisi_restart(enum reboot_mode mode, const char *cmd)

static int hisi_restart_handler(struct notifier_block *this,

				unsigned long mode, void *cmd)

{

	writel_relaxed(0xdeadbeef, base + reboot_offset);



	while (1)

		cpu_do_idle();



	return NOTIFY_DONE;

}



static struct notifier_block hisi_restart_nb = {

	.notifier_call = hisi_restart_handler,

	.priority = 128,

};



static int hisi_reboot_probe(struct platform_device *pdev)

{

	struct device_node *np = pdev->dev.of_node;

	int err;



	base = of_iomap(np, 0);

	if (!base) {
@@ -47,9 +56,12 @@ static int hisi_reboot_probe(struct platform_device *pdev) 
		return -EINVAL;

	}



	arm_pm_restart = hisi_restart;

	err = register_restart_handler(&hisi_restart_nb);

	if (err)

		dev_err(&pdev->dev, "cannot register restart handler (err=%d)\n",

			err);



	return 0;

	return err;

}



static struct of_device_id hisi_reboot_of_match[] = {