linux-kernel - Re: [PATCH 15/17] arm64: dts: r8a77965-salvator-x: Enable HDMI output

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Message-ID: <2345148.J1marZVneP@avalon>
Date:   Fri, 27 Apr 2018 00:21:55 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
Cc:     linux-renesas-soc@...r.kernel.org,
        Takeshi Kihara <takeshi.kihara.df@...esas.com>,
        Simon Horman <horms@...ge.net.au>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "moderated list:ARM64 PORT (AARCH64 ARCHITECTURE)" 
        <linux-arm-kernel@...ts.infradead.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 15/17] arm64: dts: r8a77965-salvator-x: Enable HDMI output

Hi Kieran,

Thank you for the patch.

On Thursday, 26 April 2018 19:53:44 EEST Kieran Bingham wrote:
> From: Takeshi Kihara <takeshi.kihara.df@...esas.com>
> 
> Enable the HDMI encoder for the M3N Salvator-X board and hook it up to
> the HDMI connector.
> 
> Based on a similar patches of the the Salvator-X board
> on the R8A7796 SoC device tree
> by Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

How about adding the VGA output too ? I think you can add both VGA and HDMI in 
a single patch that enables display in one go for the board. Same comment for 
the Salvator-XS.

> Signed-off-by: Takeshi Kihara <takeshi.kihara.df@...esas.com>
> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
> ---
>  .../boot/dts/renesas/r8a77965-salvator-x.dts    | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/r8a77965-salvator-x.dts
> b/arch/arm64/boot/dts/renesas/r8a77965-salvator-x.dts index
> a2b8fb20fef8..11e8d43e9e11 100644
> --- a/arch/arm64/boot/dts/renesas/r8a77965-salvator-x.dts
> +++ b/arch/arm64/boot/dts/renesas/r8a77965-salvator-x.dts
> @@ -31,3 +31,20 @@
>  	clock-names = "du.0", "du.1", "du.3", "lvds.0",
>  		      "dclkin.0", "dclkin.1", "dclkin.3";
>  };
> +
> +&hdmi0 {
> +	status = "okay";
> +
> +	ports {
> +		port@1 {
> +			reg = <1>;
> +			rcar_dw_hdmi0_out: endpoint {
> +				remote-endpoint = <&hdmi0_con>;
> +			};
> +		};
> +	};
> +};
> +
> +&hdmi0_con {
> +	remote-endpoint = <&rcar_dw_hdmi0_out>;
> +};

-- 
Regards,

Laurent Pinchart