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arm64: dts: rockchip: Fix NanoPC-T4 cooling maps

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[ Upstream commit a793e19c15 ]

Although it appeared to follow logically from the bindings, apparently
the thermal framework can't properly cope with a single cooling device
being shared between multiple maps. The CPU zone is probably easier to
overheat, so remove the references to the (optional) fan from the GPU
cooling zone to avoid things getting confused. Hopefully GPU-intensive
tasks will leak enough heat across to the CPU zone to still hit the
fan trips before reaching critical GPU temperatures.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/5bb39f3115df1a487d717d3ae87e523b03749379.1573908197.git.robin.murphy@arm.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Robin Murphy 2019-11-16 12:47:19 +00:00 committed by Greg Kroah-Hartman
parent 3a28e07012
commit fa0316aaf0
1 changed files with 0 additions and 27 deletions
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27
arch/arm64/boot/dts/rockchip/rk3399-nanopc-t4.dts
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@ -94,33 +94,6 @@ map3 {
};
};
&gpu_thermal {
trips {
gpu_warm: gpu_warm {
temperature = <55000>;
hysteresis = <2000>;
type = "active";
};
gpu_hot: gpu_hot {
temperature = <65000>;
hysteresis = <2000>;
type = "active";
};
};
cooling-maps {
map1 {
trip = <&gpu_warm>;
cooling-device = <&fan THERMAL_NO_LIMIT 1>;
};
map2 {
trip = <&gpu_hot>;
cooling-device = <&fan 2 THERMAL_NO_LIMIT>;
};
};
};
&pinctrl {
ir {
ir_rx: ir-rx {