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@xxxxxxxx>
> Acked-by: Rob Herring <robh@xxxxxxxxxx>
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@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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