linux-kernel - Re: [PATCH v5 3/5] Documentation: Add device tree binding for Goldfish FB driver

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Date:   Thu, 26 Oct 2017 22:10:56 -0500
From:   Rob Herring <robh@...nel.org>
To:     Aleksandar Markovic <aleksandar.markovic@...rk.com>
Cc:     linux-mips@...ux-mips.org,
        Aleksandar Markovic <aleksandar.markovic@...s.com>,
        Miodrag Dinic <miodrag.dinic@...s.com>,
        Goran Ferenc <goran.ferenc@...s.com>,
        David Airlie <airlied@...ux.ie>, devicetree@...r.kernel.org,
        Douglas Leung <douglas.leung@...s.com>,
        dri-devel@...ts.freedesktop.org,
        James Hogan <james.hogan@...s.com>,
        linux-kernel@...r.kernel.org, Mark Rutland <mark.rutland@....com>,
        Paul Burton <paul.burton@...s.com>,
        Petar Jovanovic <petar.jovanovic@...s.com>,
        Raghu Gandham <raghu.gandham@...s.com>
Subject: Re: [PATCH v5 3/5] Documentation: Add device tree binding for
 Goldfish FB driver

On Fri, Oct 20, 2017 at 04:33:36PM +0200, Aleksandar Markovic wrote:
> From: Aleksandar Markovic <aleksandar.markovic@...s.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@...s.com>
> Signed-off-by: Goran Ferenc <goran.ferenc@...s.com>
> Signed-off-by: Aleksandar Markovic <aleksandar.markovic@...s.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 {

Use generic node names:

display-controller@...

With that,

Acked-by: Rob Herring <robh@...nel.org>


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

An address of one cell and size of 2 cells is strange...

> +		compatible = "google,goldfish-fb";
> +	};
> -- 
> 2.7.4
>