Re: [PATCH 07/10] ARM: dts: Add thermal zone and cpufreq node for exynos3250-artik5 module

[Krzysztof Kozlowski]

On 14.03.2016 11:04, Chanwoo Choi wrote:
> This patch enables the CPU frequency scaling for exynos3250-artik5 module
> and adds the thernal zones with cpu cooling device to prevent the overheat
> temperature.
> 
> Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
> ---
>  arch/arm/boot/dts/exynos3250-artik5.dtsi | 23 +++++++++++++++++++++++
>  1 file changed, 23 insertions(+)

The patch looks good but just squash it with 5/10 unless there is some
benefit by splitting the features for many patches. The benefit would be
for example submitting the work partially, in steps, following principle
release-early-release-often... but this is not the case. You have
everything ready and tested.

BR,
Krzysztof

> 
> diff --git a/arch/arm/boot/dts/exynos3250-artik5.dtsi b/arch/arm/boot/dts/exynos3250-artik5.dtsi
> index 75b291c10cdc..877e4827df83 100644
> --- a/arch/arm/boot/dts/exynos3250-artik5.dtsi
> +++ b/arch/arm/boot/dts/exynos3250-artik5.dtsi
> @@ -31,6 +31,25 @@
>  		compatible = "samsung,secure-firmware";
>  		reg = <0x0205F000 0x1000>;
>  	};
> +
> +	thermal-zones {
> +		cpu_thermal: cpu-thermal {
> +			cooling-maps {
> +				map0 {
> +					/* Corresponds to 500MHz */
> +					cooling-device = <&cpu0 5 5>;
> +				};
> +				map1 {
> +					/* Corresponds to 200MHz */
> +					cooling-device = <&cpu0 8 8>;
> +				};
> +			};
> +		};
> +	};
> +};
> +
> +&cpu0 {
> +	cpu0-supply = <&buck2_reg>;
>  };
>  
>  &i2c_0 {
> @@ -296,6 +315,10 @@
>  	status = "okay";
>  };
>  
> +&tmu {
> +	status = "okay";
> +};
> +
>  &xusbxti {
>  	clock-frequency = <24000000>;
>  };
>