| Message ID | 20180315114136.24747-3-wens@csie.org |
|---|---|
| State | Not Applicable, archived |
| Headers | show |
| Series | ARM: sun9i: a80: Add display support | expand |
On Thu, Mar 15, 2018 at 07:41:30PM +0800, Chen-Yu Tsai wrote: > The display pipeline on the A80 SoC has what is called the Detail > Enhancement Unit, or DEU for short, block in between the display > frontend and backend. This unit can sharpen images in both luma > and chroma channels. It seems to also do colorspace conversion. > > This patch adds the device tree binding for this hardware block. > > Signed-off-by: Chen-Yu Tsai <wens@csie.org> > --- > .../bindings/display/sunxi/sun4i-drm.txt | 22 ++++++++++++++++++++++ > 1 file changed, 22 insertions(+) Reviewed-by: Rob Herring <robh@kernel.org> -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt index c05cbcdde4d7..671d75c76ad0 100644 --- a/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt +++ b/Documentation/devicetree/bindings/display/sunxi/sun4i-drm.txt @@ -248,6 +248,28 @@ On the A33, some additional properties are required: - resets and reset-names need to have a phandle to the SAT bus resets, whose name will be "sat" +DEU +--- + +The DEU (Detail Enhancement Unit), found in the Allwinner A80 SoC, +can sharpen the display content in both luma and chroma channels. + +Required properties: + - compatible: value must be one of: + * allwinner,sun9i-a80-deu + - reg: base address and size of the memory-mapped region. + - interrupts: interrupt associated to this IP + - clocks: phandles to the clocks feeding the DEU + * ahb: the DEU interface clock + * mod: the DEU module clock + * ram: the DEU DRAM clock + - clock-names: the clock names mentioned above + - resets: phandles to the reset line driving the DEU + +- ports: A ports node with endpoint definitions as defined in + Documentation/devicetree/bindings/media/video-interfaces.txt. The + first port should be the input endpoints, the second one the outputs + Display Engine Frontend -----------------------
The display pipeline on the A80 SoC has what is called the Detail Enhancement Unit, or DEU for short, block in between the display frontend and backend. This unit can sharpen images in both luma and chroma channels. It seems to also do colorspace conversion. This patch adds the device tree binding for this hardware block. Signed-off-by: Chen-Yu Tsai <wens@csie.org> --- .../bindings/display/sunxi/sun4i-drm.txt | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+)