From 18a67d42ad8e859b925bc3ee9b25a39b97cffbd2 Mon Sep 17 00:00:00 2001
From: Patrick Cain <pcain@codeaurora.org>
Date: Fri, 13 Jun 2014 15:18:58 -0700
Subject: [PATCH] ANDROID: arm64: Call idle notifiers in CPU idle

When CPU idle is enabled, the idle call should also notify the
idle_notifier_call_chain of the change in status. Otherwise some
processes will think the CPU is always active.

CRs-Fixed: 677525
Change-Id: Iabd6f617d6835688cf8b482ac1321e5c1deafffd
Signed-off-by: Patrick Cain <pcain@codeaurora.org>
Signed-off-by: Vikram Mulukutla <markivx@codeaurora.org>
Signed-off-by: Liang Chen <cl@rock-chips.com>
(cherry picked from https://android.googlesource.com/kernel/msm
 commit e7f65ab439125bdc29a7a0ca7345ff746d014119)
---
 arch/arm64/kernel/process.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 0095e2627794..5b11dbdb1087 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -90,6 +90,16 @@ void arch_cpu_idle(void)
 	trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id());
 }
 
+void arch_cpu_idle_enter(void)
+{
+	idle_notifier_call_chain(IDLE_START);
+}
+
+void arch_cpu_idle_exit(void)
+{
+	idle_notifier_call_chain(IDLE_END);
+}
+
 #ifdef CONFIG_HOTPLUG_CPU
 void arch_cpu_idle_dead(void)
 {