| Message ID | 1420511727-8242-8-git-send-email-wens@csie.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, Jan 06, 2015 at 10:35:17AM +0800, Chen-Yu Tsai wrote: > The core temperature sensor now supports thermal zones. Add a thermal > zone mapping for the cpus with passive cooling (cpufreq throttling). > > Signed-off-by: Chen-Yu Tsai <wens@csie.org> > --- > arch/arm/boot/dts/sun7i-a20.dtsi | 32 ++++++++++++++++++++++++++++++++ > 1 file changed, 32 insertions(+) > > diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi > index 887b0521bbfb..951e99ed3aa9 100644 > --- a/arch/arm/boot/dts/sun7i-a20.dtsi > +++ b/arch/arm/boot/dts/sun7i-a20.dtsi > @@ -111,6 +111,38 @@ > }; > }; > > + thermal-zones { > + cpu_thermal { > + /* milliseconds */ > + polling-delay-passive = <250>; > + polling-delay = <1000>; > + thermal-sensors = <&rtp>; > + > + cooling-maps { > + map0 { > + trip = <&cpu_alert0>; > + cooling-device = <&cpu0 (-1) (-1)>; Could you please: +#include <dt-bindings/thermal/thermal.h> and + cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; ? > + }; > + }; > + > + trips { > + cpu_alert0: cpu_alert0 { > + /* milliCelsius */ > + temperature = <75000>; > + hysteresis = <2000>; > + type = "passive"; > + }; > + > + cpu_crit: cpu_crit { > + /* milliCelsius */ > + temperature = <100000>; > + hysteresis = <2000>; > + type = "critical"; > + }; > + }; > + }; > + }; > + > memory { > reg = <0x40000000 0x80000000>; > }; > -- > 2.1.4 >
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi index 887b0521bbfb..951e99ed3aa9 100644 --- a/arch/arm/boot/dts/sun7i-a20.dtsi +++ b/arch/arm/boot/dts/sun7i-a20.dtsi @@ -111,6 +111,38 @@ }; }; + thermal-zones { + cpu_thermal { + /* milliseconds */ + polling-delay-passive = <250>; + polling-delay = <1000>; + thermal-sensors = <&rtp>; + + cooling-maps { + map0 { + trip = <&cpu_alert0>; + cooling-device = <&cpu0 (-1) (-1)>; + }; + }; + + trips { + cpu_alert0: cpu_alert0 { + /* milliCelsius */ + temperature = <75000>; + hysteresis = <2000>; + type = "passive"; + }; + + cpu_crit: cpu_crit { + /* milliCelsius */ + temperature = <100000>; + hysteresis = <2000>; + type = "critical"; + }; + }; + }; + }; + memory { reg = <0x40000000 0x80000000>; };
The core temperature sensor now supports thermal zones. Add a thermal zone mapping for the cpus with passive cooling (cpufreq throttling). Signed-off-by: Chen-Yu Tsai <wens@csie.org> --- arch/arm/boot/dts/sun7i-a20.dtsi | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+)