From: Chris Paterson <chris.paterson2@renesas.com>
Date: Thu, 14 Dec 2017 09:08:41 +0000 (+0000)
Subject: ARM: dts: r8a7793: Correct critical CPU temperature
X-Git-Tag: v4.14.83~1
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=004ef8f590a464bb1977f38d3848b18df225267e;p=users%2Fjedix%2Flinux-maple.git

ARM: dts: r8a7793: Correct critical CPU temperature

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>
---

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";
 				};