linux-kernel - Re: [PATCH v2 6/7] arm64: allwinner: a64: add device tree node for HDMI simplefb

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Message-ID: <20180625155928.ep6xrqhbxwejjr4a@flea>
Date:   Mon, 25 Jun 2018 17:59:28 +0200
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Icenowy Zheng <icenowy@...c.io>
Cc:     Rob Herring <robh+dt@...nel.org>, Chen-Yu Tsai <wens@...e.org>,
        Jagan Teki <jagan@...rulasolutions.com>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-sunxi@...glegroups.com
Subject: Re: [PATCH v2 6/7] arm64: allwinner: a64: add device tree node for
 HDMI simplefb

On Fri, Jun 22, 2018 at 08:45:39PM +0800, Icenowy Zheng wrote:
> As the U-Boot bootloader now is also capable of initialize the HDMI on
> A64 boards, add a simplefb device tree node for accessing the HDMI
> framebuffer initialized by the bootloader.
> 
> Signed-off-by: Icenowy Zheng <icenowy@...c.io>
> ---
> Changes in v2:
> - Dropped LCD SimpleFB as it's already added. LCD SimpleFB needs some
>   fix but the fix is present when adding DE2 CCU.
> 
>  arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> index 318c4ba8ae9f..840753432ea5 100644
> --- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
> @@ -68,6 +68,15 @@
>  				 <&display_clocks CLK_MIXER0>;
>  			status = "disabled";
>  		};
> +
> +		simplefb_hdmi: framebuffer-hdmi {
> +			compatible = "allwinner,simple-framebuffer",
> +				     "simple-framebuffer";
> +			allwinner,pipeline = "mixer1-lcd1-hdmi";
> +			clocks = <&display_clocks CLK_MIXER1>,
> +				 <&ccu CLK_TCON1>, <&ccu CLK_HDMI>;
> +			status = "disabled";
> +		};

This node should be before the lcd node

Maxime

-- 
Maxime Ripard, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
https://bootlin.com

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