On Wed, Feb 25, 2015 at 02:28:15PM +0100, Lukasz Majewski wrote: > Hi Eduardo, > > > On Wed, Feb 18, 2015 at 11:07:33AM +0100, Lukasz Majewski wrote: > > > With those bindings it is possible to use pwm-fan device available > > > in Odroid U3 as a cooling device. > > > > > > Signed-off-by: Lukasz Majewski <l.majewski@xxxxxxxxxxx> > > > --- > > > Changes for v2: > > > - Rename cooling-pwm-values property to cooling-levels > > > Changes for v3: > > > - Change patch's topic to "ARM dts" > > > - Reduce maximal cooling-level to 230 from 255 > > > Changes for v4: > > > - None > > > --- > > > arch/arm/boot/dts/exynos4412-odroidu3.dts | 33 > > > ++++++++++++++++++++++++++++++- 1 file changed, 32 insertions(+), 1 > > > deletion(-) > > > > > > diff --git a/arch/arm/boot/dts/exynos4412-odroidu3.dts > > > b/arch/arm/boot/dts/exynos4412-odroidu3.dts index 60bd1e4..3e5df3e > > > 100644 --- a/arch/arm/boot/dts/exynos4412-odroidu3.dts > > > +++ b/arch/arm/boot/dts/exynos4412-odroidu3.dts > > > @@ -32,11 +32,42 @@ > > > }; > > > }; > > > > > > - pwm-fan { > > > + fan0: pwm-fan { > > > compatible = "pwm-fan"; > > > pwms = <&pwm 0 10000 0>; > > > + cooling-min-state = <0>; > > > + cooling-max-state = <3>; > > > + #cooling-cells = <2>; > > > + cooling-levels = <0 102 170 230>; > > > status = "okay"; > > > }; > > > + > > > + thermal-zones { > > > + cpu_thermal: cpu-thermal { > > > > > > This thermal zone misses the mandatory properties as per > > Documentation/devicetree/bindings/thermal/thermal.txt > > Following mandatory properties: > thermal-sensors = <&tmu 0>; > polling-delay-passive = <0>; > polling-delay = <0>; > trips { > > } > > are defined in exynos4-cpu-thermal.dtsi included by this file. > > In this patch only device dependent changes are stated. OK. I missed that. > > > > > > + cooling-maps { > > > + map0 { > > > + trip = <&cpu_alert1>; > > > + cooling-device = <&cpu0 7 7>; > > > + }; > > > + map1 { > > > + trip = <&cpu_alert2>; > > > + cooling-device = <&cpu0 13 > > > 13>; > > > + }; > > > + map2 { > > > + trip = <&cpu_alert0>; > > > + cooling-device = <&fan0 0 1>; > > > + }; > > > + map3 { > > > + trip = <&cpu_alert1>; > > > + cooling-device = <&fan0 1 2>; > > > + }; > > > + map4 { > > > + trip = <&cpu_alert2>; > > > + cooling-device = <&fan0 2 3>; > > > + }; > > > + }; > > > + }; > > > + }; > > > }; > > > > > > &pwm { > > > -- > > > 2.0.0.rc2 > > > > > > > -- > Best regards, > > Lukasz Majewski > > Samsung R&D Institute Poland (SRPOL) | Linux Platform Group
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