Re: [PATCH v3 25/30] ARM: dts: sun8i: h3: add thermal zone to H3
From: Maxime Ripard <hidden>
Date: 2018-08-31 09:14:10
Also in:
linux-arm-kernel, linux-iio, lkml
From: Maxime Ripard <hidden>
Date: 2018-08-31 09:14:10
Also in:
linux-arm-kernel, linux-iio, lkml
On Thu, Aug 30, 2018 at 05:45:13PM +0200, Philipp Rossak wrote:
This patch adds the thermal zones to the H3. We have only one sensor and that is placed in the cpu. Signed-off-by: Philipp Rossak <redacted> --- arch/arm/boot/dts/sun8i-h3.dtsi | 31 +++++++++++++++++++++++++++++++ arch/arm/boot/dts/sunxi-h3-h5.dtsi | 1 + 2 files changed, 32 insertions(+)diff --git a/arch/arm/boot/dts/sun8i-h3.dtsi b/arch/arm/boot/dts/sun8i-h3.dtsi index 5b7994cb1471..954848d5df50 100644 --- a/arch/arm/boot/dts/sun8i-h3.dtsi +++ b/arch/arm/boot/dts/sun8i-h3.dtsi@@ -78,6 +78,8 @@ clock-names = "cpu"; operating-points-v2 = <&cpu0_opp_table>; #cooling-cells = <2>; + cooling-min-level = <0>; + cooling-max-level = <15>; }; cpu@1 {@@ -102,6 +104,35 @@ }; }; + thermal-zones { + cpu-thermal { + /* milliseconds */ + polling-delay-passive = <250>; + polling-delay = <1000>; + thermal-sensors = <&ths>; + + trips { + cpu_hot_trip: cpu-warm { + temperature = <65000>; + hysteresis = <2000>; + type = "passive"; + }; + cpu_very_hot_trip: cpu-very-hot { + temperature = <90000>; + hysteresis = <2000>; + type = "critical"; + }; + };
Where are those trip points coming from? Maxime -- Maxime Ripard, Bootlin Embedded Linux and Kernel engineering https://bootlin.com