| Message ID | 20180830154518.29507-26-embed3d@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | IIO-based thermal sensor driver for Allwinner H3 and A83T SoC | expand |
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 <embed3d@gmail.com> > --- > 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
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"; + }; + }; + + cooling-maps { + cpu-warm-limit { + trip = <&cpu_hot_trip>; + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; + }; + }; + }; + }; + timer { compatible = "arm,armv7-timer"; interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>, diff --git a/arch/arm/boot/dts/sunxi-h3-h5.dtsi b/arch/arm/boot/dts/sunxi-h3-h5.dtsi index 3520e4ad6042..2c83f4893757 100644 --- a/arch/arm/boot/dts/sunxi-h3-h5.dtsi +++ b/arch/arm/boot/dts/sunxi-h3-h5.dtsi @@ -47,6 +47,7 @@ #include <dt-bindings/reset/sun8i-de2.h> #include <dt-bindings/reset/sun8i-h3-ccu.h> #include <dt-bindings/reset/sun8i-r-ccu.h> +#include <dt-bindings/thermal/thermal.h> / { interrupt-parent = <&gic>;
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 <embed3d@gmail.com> --- arch/arm/boot/dts/sun8i-h3.dtsi | 31 +++++++++++++++++++++++++++++++ arch/arm/boot/dts/sunxi-h3-h5.dtsi | 1 + 2 files changed, 32 insertions(+)