By making use of the restart_handler chain mechanism, the SLCR-based
reset mechanism can be prioritized amongst other mechanisms available on
a particular board.

Choose a default high-ish priority of 192 for this restart mechanism.

Signed-off-by: Josh Cartwright <redacted>
---
v2 -> v3: Don't drop the kerneldoc
v1 -> v2: Also drop zynq_slcr_system_reset prototype from common.h
 arch/arm/mach-zynq/common.c |  6 ------
 arch/arm/mach-zynq/common.h |  1 -
 arch/arm/mach-zynq/slcr.c   | 15 +++++++++++++--
 3 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c
index 58ef2a7..616d584 100644
--- a/arch/arm/mach-zynq/common.c
+++ b/arch/arm/mach-zynq/common.c

@@ -190,11 +190,6 @@ static void __init zynq_irq_init(void)
 	irqchip_init();
 }
 
-static void zynq_system_reset(enum reboot_mode mode, const char *cmd)
-{
-	zynq_slcr_system_reset();
-}
-
 static const char * const zynq_dt_match[] = {
 	"xlnx,zynq-7000",
 	NULL

@@ -212,5 +207,4 @@ DT_MACHINE_START(XILINX_EP107, "Xilinx Zynq Platform")
 	.init_time	= zynq_timer_init,
 	.dt_compat	= zynq_dt_match,
 	.reserve	= zynq_memory_init,
-	.restart	= zynq_system_reset,
 MACHINE_END

diff --git a/arch/arm/mach-zynq/common.h b/arch/arm/mach-zynq/common.h
index 382c60e..f2f0bf2 100644
--- a/arch/arm/mach-zynq/common.h
+++ b/arch/arm/mach-zynq/common.h

@@ -21,7 +21,6 @@ void zynq_secondary_startup(void);
 
 extern int zynq_slcr_init(void);
 extern int zynq_early_slcr_init(void);
-extern void zynq_slcr_system_reset(void);
 extern void zynq_slcr_cpu_stop(int cpu);
 extern void zynq_slcr_cpu_start(int cpu);
 extern bool zynq_slcr_cpu_state_read(int cpu);

diff --git a/arch/arm/mach-zynq/slcr.c b/arch/arm/mach-zynq/slcr.c
index c3c24fd8..fa4c796 100644
--- a/arch/arm/mach-zynq/slcr.c
+++ b/arch/arm/mach-zynq/slcr.c

@@ -15,6 +15,7 @@
  */
 
 #include <linux/io.h>
+#include <linux/reboot.h>
 #include <linux/mfd/syscon.h>
 #include <linux/of_address.h>
 #include <linux/regmap.h>

@@ -92,9 +93,11 @@ u32 zynq_slcr_get_device_id(void)
 }
 
 /**
- * zynq_slcr_system_reset - Reset the entire system.
+ * zynq_slcr_system_restart - Restart the entire system.
  */
-void zynq_slcr_system_reset(void)
+static
+int zynq_slcr_system_restart(struct notifier_block *nb,
+			     unsigned long action, void *data)