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[PATCHv5,10/20] arm: dts: add omap4430 thermal data

Message ID 1384285582-16933-11-git-send-email-eduardo.valentin@ti.com
State New
Headers show

Commit Message

Eduardo Valentin Nov. 12, 2013, 7:46 p.m. UTC
This patch changes the dtsi entry on omap4430 to contain
the thermal data. This data will enable the passive
cooling with CPUfreq cooling device at 100C and the
system will do a thermal shutdown at 125C.

Cc: "Benoît Cousson" <bcousson@baylibre.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-omap@vger.kernel.org
Cc: devicetree-discuss@lists.ozlabs.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
---
 arch/arm/boot/dts/omap443x.dtsi | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

Comments

Pavel Machek Nov. 20, 2013, 12:32 p.m. UTC | #1
HI!

> This patch changes the dtsi entry on omap4430 to contain
> the thermal data. This data will enable the passive
> cooling with CPUfreq cooling device at 100C and the
> system will do a thermal shutdown at 125C.
> 
> Cc: "Benoît Cousson" <bcousson@baylibre.com>
> Cc: Tony Lindgren <tony@atomide.com>
> Cc: Russell King <linux@arm.linux.org.uk>
> Cc: linux-omap@vger.kernel.org
> Cc: devicetree-discuss@lists.ozlabs.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-kernel@vger.kernel.org
> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
> ---
>  arch/arm/boot/dts/omap443x.dtsi | 10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/omap443x.dtsi b/arch/arm/boot/dts/omap443x.dtsi
> index bcf455e..e9c97d6 100644
> --- a/arch/arm/boot/dts/omap443x.dtsi
> +++ b/arch/arm/boot/dts/omap443x.dtsi
> @@ -12,7 +12,7 @@
>  
>  / {
>  	cpus {
> -		cpu@0 {
> +		cpu0: cpu@0 {
>  			/* OMAP443x variants OPP50-OPPNT */
>  			operating-points = <
>  				/* kHz    uV */

I see you also add labels to various other entries...

> @@ -25,9 +25,15 @@
>  		};
>  	};
>  
> -	bandgap {
> +	thermal-zones{

You may want to include space here.

> +		#include "omap4-cpu-thermal.dtsi"
> +	};
> +
> +	bandgap: bandgap {
>  		reg = <0x4a002260 0x4
>  		       0x4a00232C 0x4>;
>  		compatible = "ti,omap4430-bandgap";
> +
> +		#thermal-sensor-cells = <0>;
>  	};
>  };
Eduardo Valentin Nov. 21, 2013, 3:36 p.m. UTC | #2
On 20-11-2013 08:32, Pavel Machek wrote:
> HI!
> 
>> This patch changes the dtsi entry on omap4430 to contain
>> the thermal data. This data will enable the passive
>> cooling with CPUfreq cooling device at 100C and the
>> system will do a thermal shutdown at 125C.
>>
>> Cc: "Benoît Cousson" <bcousson@baylibre.com>
>> Cc: Tony Lindgren <tony@atomide.com>
>> Cc: Russell King <linux@arm.linux.org.uk>
>> Cc: linux-omap@vger.kernel.org
>> Cc: devicetree-discuss@lists.ozlabs.org
>> Cc: linux-arm-kernel@lists.infradead.org
>> Cc: linux-kernel@vger.kernel.org
>> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
>> ---
>>  arch/arm/boot/dts/omap443x.dtsi | 10 ++++++++--
>>  1 file changed, 8 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/arm/boot/dts/omap443x.dtsi b/arch/arm/boot/dts/omap443x.dtsi
>> index bcf455e..e9c97d6 100644
>> --- a/arch/arm/boot/dts/omap443x.dtsi
>> +++ b/arch/arm/boot/dts/omap443x.dtsi
>> @@ -12,7 +12,7 @@
>>  
>>  / {
>>  	cpus {
>> -		cpu@0 {
>> +		cpu0: cpu@0 {
>>  			/* OMAP443x variants OPP50-OPPNT */
>>  			operating-points = <
>>  				/* kHz    uV */
> 
> I see you also add labels to various other entries...

I think I didn't quite get your point here. Can you please elaborate?

This label has been added because it will be used in thermal zone while
referencing the cooling device.

> 
>> @@ -25,9 +25,15 @@
>>  		};
>>  	};
>>  
>> -	bandgap {
>> +	thermal-zones{
> 
> You may want to include space here.

OK.

> 
>> +		#include "omap4-cpu-thermal.dtsi"
>> +	};
>> +
>> +	bandgap: bandgap {
>>  		reg = <0x4a002260 0x4
>>  		       0x4a00232C 0x4>;
>>  		compatible = "ti,omap4430-bandgap";
>> +
>> +		#thermal-sensor-cells = <0>;
>>  	};
>>  };
>
diff mbox

Patch

diff --git a/arch/arm/boot/dts/omap443x.dtsi b/arch/arm/boot/dts/omap443x.dtsi
index bcf455e..e9c97d6 100644
--- a/arch/arm/boot/dts/omap443x.dtsi
+++ b/arch/arm/boot/dts/omap443x.dtsi
@@ -12,7 +12,7 @@ 
 
 / {
 	cpus {
-		cpu@0 {
+		cpu0: cpu@0 {
 			/* OMAP443x variants OPP50-OPPNT */
 			operating-points = <
 				/* kHz    uV */
@@ -25,9 +25,15 @@ 
 		};
 	};
 
-	bandgap {
+	thermal-zones{
+		#include "omap4-cpu-thermal.dtsi"
+	};
+
+	bandgap: bandgap {
 		reg = <0x4a002260 0x4
 		       0x4a00232C 0x4>;
 		compatible = "ti,omap4430-bandgap";
+
+		#thermal-sensor-cells = <0>;
 	};
 };