ARM64: tegra21: lower threshold of dram throttle
Shreshtha SAHU [Mon, 22 May 2017 07:15:51 +0000 (12:15 +0530)]
Accroding to the tests, when temperature of Tboard reaches to ~74C,
EMC will swicthes to 2x refresh, so lower the threshold of dram
throttle to make sure it's able to switch to 2x refresh in time.

Bug 1915944
Bug 200306741

Change-Id: If7956f6d6bed86bedeafd25bd6626d7e1cfe0994
Signed-off-by: Shreshtha SAHU <ssahu@nvidia.com>
Reviewed-on: http://git-master/r/1486903
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Martin Chi <mchi@nvidia.com>
Tested-by: Martin Chi <mchi@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Winnie Hsu <whsu@nvidia.com>

arch/arm64/boot/dts/tegra210-platforms/tegra210-thermal-Tboard-Tdiode.dtsi

index a384ed9..8e3194f 100644 (file)
@@ -1,7 +1,7 @@
 /*
  * arch/arm64/boot/dts/tegra210-platforms/tegra210-thermal-Tboard-Tdiode.dtsi
  *
- * Copyright (c) 2014 - 2016, NVIDIA CORPORATION. All rights reserved.
+ * Copyright (c) 2014 - 2017, NVIDIA CORPORATION. All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -36,7 +36,7 @@
 
                        trips {
                                tboard_dram_throttle: dram-throttle {
-                                       temperature = <80000>;
+                                       temperature = <70000>;
                                        hysteresis = <1000>;
                                        type = "active";
                                        writable;