| Message ID | 1424254056-5904-6-git-send-email-l.majewski@samsung.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
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@samsung.com> > --- > 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 > + 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 >
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@samsung.com> > > --- > > 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. > > > + 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 > >
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@samsung.com> > > > --- > > > 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
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 { + 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 {
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@samsung.com> --- 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(-)