Hi Sachin,
On Wednesday 06 of February 2013 17:21:17 Sachin Kamat wrote:
> Added documentaion about G2D bindings.
>
> Signed-off-by: Sachin Kamat <sachin.kamat@xxxxxxxxxx>
> ---
> .../devicetree/bindings/gpu/samsung-g2d.txt | 30
> ++++++++++++++++++++ 1 files changed, 30 insertions(+), 0 deletions(-)
> create mode 100644
> Documentation/devicetree/bindings/gpu/samsung-g2d.txt
>
> diff --git a/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
> b/Documentation/devicetree/bindings/gpu/samsung-g2d.txt new file mode
> 100644
> index 0000000..838b26b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpu/samsung-g2d.txt
> @@ -0,0 +1,30 @@
> +* Samsung 2D Graphics Accelerator
> +
> +Samsung FIMG2D is a 2D graphics accelerator which supports Bit Block
> Transfer. +We set the drawing-context registers for configuring the
> rendering parameters +and then start rendering.
> +The G2D has V4L2 as well as DRM framework based driver support.
> +
> +Required properties:
> + - compatible : value should be one among the following
> + (a) "samsung,s5pv210-g2d" for G2D IP present in S5PV210 & Exynos4210
> SoC + (b) "samsung,exynos4212-g2d" for G2D IP present in Exynos4x12
> SoCs + (b) "samsung,exynos5250-g2d" for G2D IP present in Exynos5250
> SoC +
> + - reg : Physical base address of the IP registers and length of
> memory + mapped region.
> +
> + - interrupts : G2D interrupt number to the CPU.
> +
> +Optional properties:
> + - samsung,power-domain : power-domain property defined with a phandle
> + to respective power domain.
I'm not sure if samsung,power-domain should be mentioned in this
documentation file. The driver itself does not use this property.
Otherwise looks fine.
Best regards,
Tomasz
> +
> +Example:
> + g2d@12800000 {
> + compatible = "samsung,s5pv210-g2d";
> + reg = <0x12800000 0x1000>;
> + interrupts = <0 89 0>;
> + samsung,power-domain = <&pd_lcd0>;
> + status = "disabled";
> + };
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