Re: [PATCH v4 4/7] ARM: dts: add dt nodes for exynos5420 hdmi subsystem

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Hi Rahul,

Please see my comments inline.

On Friday 23 of August 2013 15:54:18 Rahul Sharma wrote:
> Add hdmi, mixer, ddc device tree nodes for Exynos 5420 SoC.
> 
> Signed-off-by: Rahul Sharma <rahul.sharma@xxxxxxxxxxx>
> ---
>  arch/arm/boot/dts/exynos5420-smdk5420.dts |   19 +++++++++++++++++++
>  arch/arm/boot/dts/exynos5420.dtsi         |   14 ++++++++++++++
>  2 files changed, 33 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts
> b/arch/arm/boot/dts/exynos5420-smdk5420.dts index bafba25..7dbf1fa
> 100644
> --- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
> +++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
> @@ -61,4 +61,23 @@
>  		};
>  	};
> 
> +	hdmi@14530000 {
> +		status = "okay";
> +		hpd-gpio = <&gpx3 7 0>;
> +	};
> +
> +	mixer@14450000 {
> +		status = "okay";
> +	};
> +
> +	i2c_2: i2c@12C80000 {
> +		samsung,i2c-sda-delay = <100>;
> +		samsung,i2c-max-bus-freq = <66000>;
> +		status = "okay";
> +
> +		hdmiddc@50 {
> +			compatible = "samsung,exynos4210-hdmiddc";
> +			reg = <0x50>;
> +		};
> +	};
>  };

You should separate above board-specific changes from this patch and 
squash it with patch 6/7, adjusting patch subject and description 
appropriately.

> diff --git a/arch/arm/boot/dts/exynos5420.dtsi
> b/arch/arm/boot/dts/exynos5420.dtsi index 05dee86..7c6214d 100644
> --- a/arch/arm/boot/dts/exynos5420.dtsi
> +++ b/arch/arm/boot/dts/exynos5420.dtsi
> @@ -274,4 +274,18 @@
>  		pinctrl-0 = <&i2c3_bus>;
>  		status = "disabled";
>  	};
> +
> +	hdmi@14530000 {
> +		compatible = "samsung,exynos4212-hdmi";
> +		reg = <0x14530000 0x70000>;
> +		interrupts = <0 95 0>;
> +		status = "disabled";
> +	};
> +
> +	mixer@14450000 {
> +		compatible = "samsung,exynos5420-mixer";
> +		reg = <0x14450000 0x10000>;
> +		interrupts = <0 94 0>;
> +		status = "disabled";

This node looks like a candidate to be enabled here on SoC level, since it 
does not require any board specific information.

Best regards,
Tomasz

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