2019-08-14 10:07:53

by Michael Kao

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Subject: [PATCH 0/4] add dts for Mediatek MT8183 thermal functions

Splitting the dtsi part from [1] and sending it again.

Add tzts1~5 and tztsABB from thermal sensor in SoC for
another get temperatrue. They don't need to thermal throttle.
And we bind coolers for thermal zone nodes of cpu_thermal.

Refernece:
[1] [v2,0/8] Add Mediatek thermal dirver and dtsi (https://patchwork.kernel.org/cover/10938809/)

Matthias Kaehlcke (1):
arm64: dts: mt8183: Configure CPU cooling

michael.kao (3):
arm64: dts: mt8183: add thermal zone node
arm64: dts: mt8183: add dynamic power coefficients
arm64: dts: mt8183: Add #cooling-cells to CPU nodes

arch/arm64/boot/dts/mediatek/mt8183.dtsi | 139 +++++++++++++++++++++++++++++++
1 file changed, 139 insertions(+)



2019-08-14 10:09:33

by Michael Kao

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Subject: [PATCH 4/4] arm64: dts: mt8183: Configure CPU cooling

From: Matthias Kaehlcke <[email protected]>

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 <[email protected]>
Signed-off-by: Michael Kao <[email protected]>
---
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