From 3135fd7008585ce09b7077f97eb8b22fb5abc2df Mon Sep 17 00:00:00 2001
From: Robb Glasser <rglasser@google.com>
Date: Mon, 4 Dec 2017 17:28:08 -0800
Subject: [PATCH] sm6150-common: rootdir: Enable idle_state mechanism

Allows us to check the idle state of the display in order to use perf
hints to improve system performance.

Bug: 69270928
Bug: 69915886

Test: Booted and cat-ed the affected files
Change-Id: I8717093e9b8ed9ed35b6ca51a20225abbf71f775
---
 rootdir/bin/init.qcom.post_boot.sh | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/rootdir/bin/init.qcom.post_boot.sh b/rootdir/bin/init.qcom.post_boot.sh
index 1f7f4db..cd8a061 100644
--- a/rootdir/bin/init.qcom.post_boot.sh
+++ b/rootdir/bin/init.qcom.post_boot.sh
@@ -182,6 +182,10 @@ case "$soc_id" in
     echo 2-5     > /dev/cpuset/system-background/cpus
     echo 2-5     > /dev/cpuset/restricted/cpus
 
+    # Enable idle state listener
+    echo 1 > /sys/class/drm/card0/device/idle_encoder_mask
+    echo 100 > /sys/class/drm/card0/device/idle_timeout_ms
+
     # Turn on sleep modes.
     echo 0 > /sys/module/lpm_levels/parameters/sleep_disabled
     ;;
@@ -296,6 +300,10 @@ case "$soc_id" in
     echo 2-5     > /dev/cpuset/system-background/cpus
     echo 2-5     > /dev/cpuset/restricted/cpus
 
+    # Enable idle state listener
+    echo 1 > /sys/class/drm/card0/device/idle_encoder_mask
+    echo 100 > /sys/class/drm/card0/device/idle_timeout_ms
+
     # Turn on sleep modes.
     echo 0 > /sys/module/lpm_levels/parameters/sleep_disabled
     ;;