Re: [PATCH v2 04/19] ARM: dts: Add DMC bus frequency for exynos3250-rinato/monk

[Krzysztof Kozlowski]

On 09.12.2015 13:07, Chanwoo Choi wrote:
> This patch adds the DMC (Dynamic Memory Controller) bus frequency node
> which includes the devfreq-events and regulator properties. The bus
> frequency support the DVFS (Dynamic Voltage Frequency Scaling) feature
> with ondemand governor.
> 
> The devfreq-events (ppmu_dmc0*) can monitor the utilization of DMC bus
> on runtime and the buck1_reg (VDD_MIF power line) supplies the power to
> the DMC block.
> 
> Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
> ---
>  arch/arm/boot/dts/exynos3250-monk.dts   | 6 ++++++
>  arch/arm/boot/dts/exynos3250-rinato.dts | 6 ++++++
>  2 files changed, 12 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/exynos3250-monk.dts b/arch/arm/boot/dts/exynos3250-monk.dts
> index 443a35085846..d982586a6533 100644
> --- a/arch/arm/boot/dts/exynos3250-monk.dts
> +++ b/arch/arm/boot/dts/exynos3250-monk.dts
> @@ -498,6 +498,12 @@
>  	};
>  };
>  
> +&bus_dmc {
> +	devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
> +	vdd-supply = <&buck1_reg>;
> +	status = "okay";
> +};
> +
>  &xusbxti {
>  	clock-frequency = <24000000>;
>  };
> diff --git a/arch/arm/boot/dts/exynos3250-rinato.dts b/arch/arm/boot/dts/exynos3250-rinato.dts
> index 3e64d5dcdd60..61477943015b 100644
> --- a/arch/arm/boot/dts/exynos3250-rinato.dts
> +++ b/arch/arm/boot/dts/exynos3250-rinato.dts
> @@ -675,6 +675,12 @@
>  	};
>  };
>  
> +&bus_dmc {
> +	devfreq-events = <&ppmu_dmc0_3>, <&ppmu_dmc1_3>;
> +	vdd-supply = <&buck1_reg>;
> +	status = "okay";
> +};

I would prefer to put this in alphabetical order... which could be
tricky because the nodes are not entirely sorted. Maybe after the "&adc"
node?

Anyway the change looks good:

Reviewed-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>

Best regards,
Krzysztof


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