openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

arm64: dts: rockchip: Fix multiple thermal zones conflict in rk3399.dtsi 

Currently the common thermal zones definitions for the rk3399 assumes
multiple thermal zones are supported by the governors. This is not the
case and each thermal zone has its own governor instance acting
individually without collaboration with other governors.

As the cooling device for the CPU and the GPU thermal zones is the
same, each governors take different decisions for the same cooling
device leading to conflicting instructions and an erratic behavior.

As the cooling-maps is about to become an optional property, let's
remove the cpu cooling device map from the GPU thermal zone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
This commit is contained in:
Daniel Lezcano 2019-06-04 18:57:57 +02:00 committed by Heiko Stuebner
parent 587b4ee24f
commit 95f231f801
1 changed files with 0 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
arch/arm64/boot/dts/rockchip/rk3399.dtsi
View File

@ -821,15 +821,6 @@ gpu_crit: gpu_crit {
type = "critical";
};
};
cooling-maps {
map0 {
trip = <&gpu_alert0>;
cooling-device =
<&cpu_b0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
<&cpu_b1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
};
};
};
};