[v7,2/3] arm64: dts: mt8183: Configure CPU cooling
From: Michael Kao <hidden>
Date: 2021-03-16 07:02:34
Also in:
linux-arm-kernel, linux-mediatek, linux-pm, lkml
From: Matthias Kaehlcke <mka@chromium.org> Add two passive trip points at 68°C and 80°C for the CPU temperature. Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Michael Kao <redacted> Tested-by: Hsin-Yi Wang <redacted> --- arch/arm64/boot/dts/mediatek/mt8183.dtsi | 56 ++++++++++++++++++++++++ 1 file changed, 56 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt8183.dtsi b/arch/arm64/boot/dts/mediatek/mt8183.dtsi
index d3550af06408..1ad0a1d55d53 100644
--- a/arch/arm64/boot/dts/mediatek/mt8183.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8183.dtsi@@ -13,6 +13,7 @@ #include <dt-bindings/power/mt8183-power.h> #include <dt-bindings/reset-controller/mt8183-resets.h> #include <dt-bindings/phy/phy.h> +#include <dt-bindings/thermal/thermal.h> #include "mt8183-pinfunc.h" / {
@@ -678,6 +679,61 @@ polling-delay = <500>; thermal-sensors = <&thermal 0>; sustainable-power = <5000>; + + 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 + THERMAL_NO_LIMIT>, + <&cpu5 + THERMAL_NO_LIMIT + THERMAL_NO_LIMIT>, + <&cpu6 + THERMAL_NO_LIMIT + THERMAL_NO_LIMIT>, + <&cpu7 + THERMAL_NO_LIMIT + THERMAL_NO_LIMIT>; + contribution = <1024>; + }; + }; }; /* The tzts1 ~ tzts6 don't need to polling */
--
2.18.0