lkml.org 
[lkml]   [2019]   [Aug]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4/4] arm64: dts: mt8183: Configure CPU cooling
Date
From: Matthias Kaehlcke <mka@chromium.org>

Add SoC temperature threshold at 68°C and target at 80°C.
Add trip points and cooling maps for big and litter clusters.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Michael Kao <michael.kao@mediatek.com>
---
arch/arm64/boot/dts/mediatek/mt8183.dtsi | 55 ++++++++++++++++++++++++++++++++
1 file changed, 55 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index bc42b82..6611d29 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
@@ -411,6 +411,61 @@
polling-delay = <500>;
thermal-sensors = <&thermal 0>;
sustainable-power = <4500>;
+
+ trips {
+ threshold: trip-point@0 {
+ temperature = <68000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ target: trip-point@1 {
+ temperature = <80000>;
+ hysteresis = <2000>;
+ type = "passive";
+ };
+
+ cpu_crit: cpu-crit {
+ temperature = <115000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&target>;
+ cooling-device = <&cpu0
+ THERMAL_NO_LIMIT
+ THERMAL_NO_LIMIT>,
+ <&cpu1
+ THERMAL_NO_LIMIT
+ THERMAL_NO_LIMIT>,
+ <&cpu2
+ THERMAL_NO_LIMIT
+ THERMAL_NO_LIMIT>,
+ <&cpu3
+ THERMAL_NO_LIMIT
+ THERMAL_NO_LIMIT>;
+ contribution = <3072>;
+ };
+ map1 {
+ trip = <&target>;
+ cooling-device = <&cpu4
+ THERMAL_NO_LIMIT
+ 14>,
+ <&cpu5
+ THERMAL_NO_LIMIT
+ 14>,
+ <&cpu6
+ THERMAL_NO_LIMIT
+ 14>,
+ <&cpu7
+ THERMAL_NO_LIMIT
+ 14>;
+ contribution = <1024>;
+ };
+ };
};

/* The tzts1 ~ tzts6 don't need to polling */
--
1.9.1
\
 
 \ /
  Last update: 2019-08-14 12:09    [W:0.025 / U:21.308 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site