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Message-id: <b6337c5b-90a3-21a3-a0b9-a5c4809e5ee1@samsung.com>
Date:   Wed, 31 Aug 2016 08:54:52 +0200
From:   Andrzej Hajda <a.hajda@...sung.com>
To:     Milo Kim <woogyom.kim@...il.com>, Kukjin Kim <kgene@...nel.org>,
        Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:     devicetree@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4] ARM: dts: exynos: Enable HDMI for Arndale Octa board

On 08/31/2016 08:08 AM, Milo Kim wrote:
> * GPIO for HDMI hot plug detect
>   GPX3_7 is used. The HPD awareness is done when the GPIO is active high.
>
> * Enable HDMI block in Exynos5420
>   HDMI VDD and PLL consume 1.0V LDO6 (PVDD_ANAIP_1V0) and HDMI oscillator
>   requires 1.8V LDO7 (PVDD_ANAIP_1V8).
>
> * Support HDMI display data channel
>   I2C #2 is assigned for the HDMI DDC. It enables the EDID access.
>
> Cc: Kukjin Kim <kgene@...nel.org>
> Cc: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> Cc: Rob Herring <robh+dt@...nel.org>
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-samsung-soc@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> Signed-off-by: Milo Kim <woogyom.kim@...il.com>

Reviewed-by: Andrzej Hajda <a.hajda@...sung.com>
--
Regards
Andrzej
> ---
>  arch/arm/boot/dts/exynos5420-arndale-octa.dts | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
>
> diff --git a/arch/arm/boot/dts/exynos5420-arndale-octa.dts b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> index 39a3b81..d2ad48e 100644
> --- a/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> +++ b/arch/arm/boot/dts/exynos5420-arndale-octa.dts
> @@ -70,6 +70,15 @@
>  	status = "disabled";
>  };
>  
> +&hdmi {
> +	hpd-gpios = <&gpx3 7 GPIO_ACTIVE_HIGH>;
> +	vdd_osc-supply = <&ldo7_reg>;
> +	vdd_pll-supply = <&ldo6_reg>;
> +	vdd-supply = <&ldo6_reg>;
> +	ddc = <&i2c_2>;
> +	status = "okay";
> +};
> +
>  &hsi2c_4 {
>  	status = "okay";
>  
> @@ -347,6 +356,10 @@
>  	};
>  };
>  
> +&i2c_2 {
> +	status = "okay";
> +};
> +
>  &mmc_0 {
>  	status = "okay";
>  	broken-cd;


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