From: Stefan Wahren wahrenst@gmx.net
[ Upstream commit 30e647a764d446723a7e0fb08d209e0104f16173 ]
During definition of the CPU thermal zone of BCM283x SoC family there was a misunderstanding of the meaning "criticial trip point" and the thermal throttling range of the VideoCore firmware. The latter one takes effect when the core temperature is at least 85 degree celsius or higher
So the current critical trip point doesn't make sense, because the thermal shutdown appears before the firmware has a chance to throttle the ARM core(s).
Fix these unwanted shutdowns by increasing the critical trip point to a value which shouldn't be reached with working thermal throttling.
Fixes: 0fe4d2181cc4 ("ARM: dts: bcm283x: Add CPU thermal zone with 1 trip point") Signed-off-by: Stefan Wahren wahrenst@gmx.net Signed-off-by: Florian Fainelli f.fainelli@gmail.com Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- arch/arm/boot/dts/bcm283x.dtsi | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/boot/dts/bcm283x.dtsi b/arch/arm/boot/dts/bcm283x.dtsi index 31b2964..c9322a56 100644 --- a/arch/arm/boot/dts/bcm283x.dtsi +++ b/arch/arm/boot/dts/bcm283x.dtsi @@ -39,7 +39,7 @@
trips { cpu-crit { - temperature = <80000>; + temperature = <90000>; hysteresis = <0>; type = "critical"; };