linux-kernel - Re: [PATCH v3 5/6] mfd: dt: Add bindings for the Aspeed SoC Display Controller (GFX)

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Message-ID: <20170103174954.GF27589@dell>
Date:   Tue, 3 Jan 2017 17:49:54 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Andrew Jeffery <andrew@...id.au>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Corey Minyard <minyard@....org>,
        Cédric Le Goater <clg@...d.org>,
        Joel Stanley <joel@....id.au>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/6] mfd: dt: Add bindings for the Aspeed SoC Display
 Controller (GFX)

On Tue, 06 Dec 2016, Andrew Jeffery wrote:

> The Aspeed SoC Display Controller is presented as a syscon device to
> arbitrate access by display and pinmux drivers. Video pinmux
> configuration on fifth generation SoCs depends on bits in both the
> System Control Unit and the Display Controller.
> 
> Signed-off-by: Andrew Jeffery <andrew@...id.au>
> Acked-by: Rob Herring <robh@...nel.org>

Applied with Acks, thanks.

> ---
>  .../devicetree/bindings/mfd/syscon/aspeed-gfx.txt       | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/syscon/aspeed-gfx.txt
> 
> diff --git a/Documentation/devicetree/bindings/mfd/syscon/aspeed-gfx.txt b/Documentation/devicetree/bindings/mfd/syscon/aspeed-gfx.txt
> new file mode 100644
> index 000000000000..aea5370efd97
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/syscon/aspeed-gfx.txt
> @@ -0,0 +1,17 @@
> +* Device tree bindings for Aspeed SoC Display Controller (GFX)
> +
> +The Aspeed SoC Display Controller primarily does as its name suggests, but also
> +participates in pinmux requests on the g5 SoCs. It is therefore considered a
> +syscon device.
> +
> +Required properties:
> +- compatible:		"aspeed,ast2500-gfx", "syscon"
> +- reg:			contains offset/length value of the GFX memory
> +			region.
> +
> +Example:
> +
> +gfx: display@...e6000 {
> +	compatible = "aspeed,ast2500-gfx", "syscon";
> +	reg = <0x1e6e6000 0x1000>;
> +};

-- 
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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