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Date: Fri, 18 Nov 2016 18:47:15 +0000
From: Lee Jones <lee.jones@linaro.org>
To: Andrew Jeffery <andrew@aj.id.au>, arnd@arndb.de
Cc: Linus Walleij <linus.walleij@linaro.org>,
        Joel Stanley <joel@jms.id.au>, Mark Rutland <mark.rutland@arm.com>,
        Rob Herring <robh+dt@kernel.org>, linux-gpio@vger.kernel.org,
        linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org,
        devicetree@vger.kernel.org
Subject: Re: [PATCH v2 2/6] mfd: dt: Add bindings for the Aspeed SoC Display
 Controller (GFX)
Message-ID: <20161118184715.GG19884@dell.home>
References: <1478097481-14895-1-git-send-email-andrew@aj.id.au>
 <1478097481-14895-3-git-send-email-andrew@aj.id.au>
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On Thu, 03 Nov 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@aj.id.au>
> ---
>  Documentation/devicetree/bindings/mfd/aspeed-gfx.txt | 17 +++++++++++++++++
>  1 file changed, 17 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/aspeed-gfx.txt

Same here.

> diff --git a/Documentation/devicetree/bindings/mfd/aspeed-gfx.txt b/Documentation/devicetree/bindings/mfd/aspeed-gfx.txt
> new file mode 100644
> index 000000000000..aea5370efd97
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/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@1e6e6000 {
> +	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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