linux-kernel - Re: [PATCH v4 6/8] Documentation: Add device tree binding for Goldfish FB driver

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Message-ID: <64418e6a-7ac2-ae2f-a064-937343ecb136@cogentembedded.com>
Date:   Fri, 18 Aug 2017 19:04:19 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Aleksandar Markovic <aleksandar.markovic@...rk.com>,
        linux-mips@...ux-mips.org
Cc:     Aleksandar Markovic <aleksandar.markovic@...tec.com>,
        Miodrag Dinic <miodrag.dinic@...tec.com>,
        Goran Ferenc <goran.ferenc@...tec.com>,
        Bo Hu <bohu@...gle.com>, David Airlie <airlied@...ux.ie>,
        devicetree@...r.kernel.org,
        Douglas Leung <douglas.leung@...tec.com>,
        dri-devel@...ts.freedesktop.org,
        James Hogan <james.hogan@...tec.com>,
        Jin Qian <jinqian@...gle.com>, linux-kernel@...r.kernel.org,
        Mark Rutland <mark.rutland@....com>,
        Paul Burton <paul.burton@...tec.com>,
        Petar Jovanovic <petar.jovanovic@...tec.com>,
        Raghu Gandham <raghu.gandham@...tec.com>,
        Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH v4 6/8] Documentation: Add device tree binding for
 Goldfish FB driver

On 08/18/2017 04:08 PM, Aleksandar Markovic wrote:

> From: Aleksandar Markovic <aleksandar.markovic@...tec.com>
> 
> Add documentation for DT binding of Goldfish FB driver. The compatible
> string used by OS for binding the driver is "google,goldfish-fb".
> 
> Signed-off-by: Miodrag Dinic <miodrag.dinic@...tec.com>
> Signed-off-by: Goran Ferenc <goran.ferenc@...tec.com>
> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@...tec.com>
> ---
>   .../devicetree/bindings/display/google,goldfish-fb.txt | 18 ++++++++++++++++++
>   1 file changed, 18 insertions(+)
>   create mode 100644 Documentation/devicetree/bindings/display/google,goldfish-fb.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/google,goldfish-fb.txt b/Documentation/devicetree/bindings/display/google,goldfish-fb.txt
> new file mode 100644
> index 0000000..9ce0615
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/google,goldfish-fb.txt
> @@ -0,0 +1,18 @@
> +Android Goldfish framebuffer
> +
> +Android Goldfish framebuffer device used by Android emulator.
> +
> +Required properties:
> +
> +- compatible : should contain "google,goldfish-fb"
> +- reg        : <registers mapping>
> +- interrupts : <interrupt mapping>
> +
> +Example:
> +
> +	goldfish_fb@...08000 {

    The node names should be generic according to the DT spec. It even has the 
fitting name: "display".

> +		compatible = "google,goldfish-fb";
> +		interrupts = <0x10>;
> +		reg = <0x1f008000 0x0 0x100>;
> +		compatible = "google,goldfish-fb";

    Why twice? :-)

> +	};
> 

MBR, Sergei