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[PATCH 4/6] ARM: Register with kernel restart handler

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By making use of the kernel restart handler, board specific restart
handlers can be prioritized amongst available mechanisms for a particular
board or system.

Select the default priority of 128 to indicate that the restart callback
in the machine description is the default restart mechanism.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 arch/arm/kernel/setup.c | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 139791ed473d..232dba199702 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -1002,6 +1002,20 @@ void __init hyp_mode_check(void)
 #endif
 }
 
+static void (*__arm_pm_restart)(enum reboot_mode reboot_mode, const char *cmd);
+
+static int arm_restart(struct notifier_block *nb, unsigned long action,
+		       void *data)
+{
+	__arm_pm_restart(action, data);
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block arm_restart_nb = {
+	.notifier_call = arm_restart,
+	.priority = 128,
+};
+
 void __init setup_arch(char **cmdline_p)
 {
 	const struct machine_desc *mdesc;
@@ -1044,8 +1058,10 @@ void __init setup_arch(char **cmdline_p)
 	paging_init(mdesc);
 	request_standard_resources(mdesc);
 
-	if (mdesc->restart)
-		arm_pm_restart = mdesc->restart;
+	if (mdesc->restart) {
+		__arm_pm_restart = mdesc->restart;
+		register_restart_handler(&arm_restart_nb);
+	}
 
 	unflatten_device_tree();
 
-- 
2.5.0

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[PATCH 0/6] ARM/ARM64: Drop arm_pm_restart Guenter Roeck <linux@roeck-us.net> - 2016-04-08 15:00 +0200
  [PATCH 3/6] ARM: PSCI: Register with kernel restart handler Guenter Roeck <linux@roeck-us.net> - 2016-04-08 15:00 +0200
    Re: [PATCH 3/6] ARM: PSCI: Register with kernel restart handler Wolfram Sang <wsa@the-dreams.de> - 2016-04-12 17:40 +0200
    Re: [PATCH 3/6] ARM: PSCI: Register with kernel restart handler Mark Rutland <mark.rutland@arm.com> - 2016-04-13 13:10 +0200
      Re: [PATCH 3/6] ARM: PSCI: Register with kernel restart handler Jisheng Zhang <jszhang@marvell.com> - 2016-04-13 13:40 +0200
      Re: [PATCH 3/6] ARM: PSCI: Register with kernel restart handler Guenter Roeck <linux@roeck-us.net> - 2016-04-13 15:20 +0200
        Re: [PATCH 3/6] ARM: PSCI: Register with kernel restart handler Geert Uytterhoeven <geert@linux-m68k.org> - 2016-04-13 15:30 +0200
          Re: [PATCH 3/6] ARM: PSCI: Register with kernel restart handler Guenter Roeck <linux@roeck-us.net> - 2016-04-14 02:50 +0200
            Re: [PATCH 3/6] ARM: PSCI: Register with kernel restart handler Wolfram Sang <wsa@the-dreams.de> - 2016-04-14 11:00 +0200
              Re: [PATCH 3/6] ARM: PSCI: Register with kernel restart handler Guenter Roeck <linux@roeck-us.net> - 2016-04-14 15:30 +0200
                Re: [PATCH 3/6] ARM: PSCI: Register with kernel restart handler Wolfram Sang <wsa@the-dreams.de> - 2016-04-14 16:40 +0200
  [PATCH 1/6] ARM: prima2: Register with kernel restart handler Guenter Roeck <linux@roeck-us.net> - 2016-04-08 15:00 +0200
  [PATCH 6/6] ARM: Remove arm_pm_restart Guenter Roeck <linux@roeck-us.net> - 2016-04-08 15:00 +0200
  [PATCH 4/6] ARM: Register with kernel restart handler Guenter Roeck <linux@roeck-us.net> - 2016-04-08 15:00 +0200
  [PATCH 5/6] ARM64: Remove arm_pm_restart Guenter Roeck <linux@roeck-us.net> - 2016-04-08 15:00 +0200
    Re: [PATCH 5/6] ARM64: Remove arm_pm_restart Catalin Marinas <catalin.marinas@arm.com> - 2016-04-12 15:20 +0200
  Re: [PATCH 0/6] ARM/ARM64: Drop arm_pm_restart Wolfram Sang <wsa@the-dreams.de> - 2016-04-08 17:50 +0200
  Re: [PATCH 0/6] ARM/ARM64: Drop arm_pm_restart Arnd Bergmann <arnd@arndb.de> - 2016-04-08 22:50 +0200
  Re: [PATCH 0/6] ARM/ARM64: Drop arm_pm_restart Wolfram Sang <wsa@the-dreams.de> - 2016-04-12 17:50 +0200

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