From 004ef8f590a464bb1977f38d3848b18df225267e Mon Sep 17 00:00:00 2001
From: Chris Paterson <chris.paterson2@renesas.com>
Date: Thu, 14 Dec 2017 09:08:41 +0000
Subject: [PATCH] ARM: dts: r8a7793: Correct critical CPU temperature
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commit 1dfc65cef481ac6af64380f26186d5cc585b46eb upstream.
The R-Car M2N hardware manual states that Tc = –40°C to +105°C. The
thermal sensor has an accuracy of ±5°C and there can be a temperature
difference of 1 or 2 degrees between Tjmax and the thermal sensor due
to the location of the latter.
This means that 95°C is a safer value to use.
Fixes: 57f9156bc620ac56 ("ARM: dts: r8a7793: enable to use thermal-zone")
Signed-off-by: Chris Paterson <chris.paterson2@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/arm/boot/dts/r8a7793.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/r8a7793.dtsi b/arch/arm/boot/dts/r8a7793.dtsi
index 497716b6fbe24..fd12564aabc39 100644
--- a/arch/arm/boot/dts/r8a7793.dtsi
+++ b/arch/arm/boot/dts/r8a7793.dtsi
@@ -88,7 +88,7 @@
trips {
cpu-crit {
- temperature = <115000>;
+ temperature = <95000>;
hysteresis = <0>;
type = "critical";
};