This change uses replaces use of arm_pm_restart with recently introduced
reset mechanism in Linux kernel called restart_notifier.

Cc: Guenter Roeck <[email protected]>
Cc: Josh Cartwright <[email protected]>
Cc: Sebastian Reichel <[email protected]>
Cc: Dmitry Eremin-Solenikov <[email protected]>
Cc: David Woodhouse <[email protected]>
Cc: Stephen Boyd <[email protected]>
Cc: [email protected]

Signed-off-by: Pramod Gurav <[email protected]>

---

This patch is tested on DB8074 Target and are based on patchset [1]
by Guenter Roeck.

[1]: https://patchwork.kernel.org/patch/4746721/

 drivers/power/reset/msm-poweroff.c |   18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/power/reset/msm-poweroff.c 
b/drivers/power/reset/msm-poweroff.c
index 774f9a3..59b368c 100644
--- a/drivers/power/reset/msm-poweroff.c
+++ b/drivers/power/reset/msm-poweroff.c
@@ -24,17 +24,21 @@
 #include <asm/system_misc.h>
 
 static void __iomem *msm_ps_hold;
+static struct notifier_block restart_nb;
 
-static void do_msm_restart(enum reboot_mode reboot_mode, const char *cmd)
+static int do_msm_restart(struct notifier_block *nb, unsigned long action,
+                          void *data)
 {
        writel(0, msm_ps_hold);
        mdelay(10000);
+
+       return NOTIFY_DONE;
 }
 
 static void do_msm_poweroff(void)
 {
        /* TODO: Add poweroff capability */
-       do_msm_restart(REBOOT_HARD, NULL);
+       do_msm_restart(&restart_nb, 0, NULL);
 }
 
 static int msm_restart_probe(struct platform_device *pdev)
@@ -47,8 +51,16 @@ static int msm_restart_probe(struct platform_device *pdev)
        if (IS_ERR(msm_ps_hold))
                return PTR_ERR(msm_ps_hold);
 
+       restart_nb.notifier_call = do_msm_restart;
+       restart_nb.priority = 128;
+       if (register_restart_handler(&restart_nb)) {
+               dev_err(&pdev->dev,
+                       "failed to setup restart handler.\n");
+                       restart_nb.notifier_call = NULL;
+       }
+
        pm_power_off = do_msm_poweroff;
-       arm_pm_restart = do_msm_restart;
+
        return 0;
 }
 
-- 
1.7.9.5

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