msm: devices-msm7x27a: Add panic notifier for 7627a/8625
When panic occurs we want to flush the inner and outer
caches.
Change-Id: I0b47d19ca7aa1f767b76015f26b9e025986f1bdc
Signed-off-by: Taniya Das <tdas@codeaurora.org>
diff --git a/arch/arm/mach-msm/devices-msm7x27a.c b/arch/arm/mach-msm/devices-msm7x27a.c
index bd0376e..a9d68a6 100644
--- a/arch/arm/mach-msm/devices-msm7x27a.c
+++ b/arch/arm/mach-msm/devices-msm7x27a.c
@@ -17,6 +17,7 @@
#include <linux/regulator/machine.h>
#include <linux/init.h>
#include <linux/irq.h>
+#include <linux/notifier.h>
#include <mach/irqs.h>
#include <mach/msm_iomap.h>
#include <mach/board.h>
@@ -26,6 +27,7 @@
#include <asm/hardware/gic.h>
#include <asm/hardware/cache-l2x0.h>
#include <asm/mach/mmc.h>
+#include <asm/cacheflush.h>
#include <mach/rpc_hsusb.h>
#include <mach/socinfo.h>
@@ -1704,3 +1706,23 @@
return 0;
}
postcore_initcall(msm7627a_init_gpio);
+
+static int msm7627a_panic_handler(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ flush_cache_all();
+ outer_flush_all();
+ return NOTIFY_DONE;
+}
+
+static struct notifier_block panic_handler = {
+ .notifier_call = msm7627a_panic_handler,
+};
+
+static int __init panic_register(void)
+{
+ atomic_notifier_chain_register(&panic_notifier_list,
+ &panic_handler);
+ return 0;
+}
+module_init(panic_register);