| Message ID | 20180823114954.30704-2-mjourdan@baylibre.com (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
| Series | soc: amlogic: add meson-canvas | expand |
On Thu, 23 Aug 2018 13:49:52 +0200, Maxime Jourdan wrote: > DT bindings doc for amlogic,meson-canvas > > Reviewed-by: Jerome Brunet <jbrunet@baylibre.com> > Signed-off-by: Maxime Jourdan <mjourdan@baylibre.com> > --- > .../bindings/soc/amlogic/amlogic,canvas.txt | 29 +++++++++++++++++++ > 1 file changed, 29 insertions(+) > create mode 100644 Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt > Reviewed-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt b/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt new file mode 100644 index 000000000000..436d2106e80d --- /dev/null +++ b/Documentation/devicetree/bindings/soc/amlogic/amlogic,canvas.txt @@ -0,0 +1,29 @@ +Amlogic Canvas +================================ + +A canvas is a collection of metadata that describes a pixel buffer. +Those metadata include: width, height, phyaddr, wrapping, block mode +and endianness. + +Many IPs within Amlogic SoCs rely on canvas indexes to read/write pixel data +rather than use the phy addresses directly. For instance, this is the case for +the video decoders and the display. + +Amlogic SoCs have 256 canvas. + +Device Tree Bindings: +--------------------- + +Video Lookup Table +-------------------------- + +Required properties: +- compatible: "amlogic,canvas" +- reg: Base physical address and size of the canvas registers. + +Example: + +canvas: video-lut@48 { + compatible = "amlogic,canvas"; + reg = <0x0 0x48 0x0 0x14>; +};