On Mon, Jun 21, 2021 at 03:44:02PM +0900, Tomohito Esaki wrote: > Add device tree bindings documentation for virtual DRM. DRM is a Linuxism. What's virtual DRM? Why does it need to be in DT? What's the usecase? You're going to need a lot more reasoning to justify this for DT. > > Signed-off-by: Tomohito Esaki <etom@xxxxxxxxxx> > --- > .../devicetree/bindings/display/vdrm.yaml | 67 +++++++++++++++++++ > 1 file changed, 67 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/vdrm.yaml > > diff --git a/Documentation/devicetree/bindings/display/vdrm.yaml b/Documentation/devicetree/bindings/display/vdrm.yaml > new file mode 100644 > index 000000000000..6493bb0fc09f > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/vdrm.yaml > @@ -0,0 +1,67 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/vdrm.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Virtual DRM Device Tree Bindings > + > +description: > + This document defines device tree properties virtual DRM. The initial > + position, size and z-position of the plane used in the virtual DRM is > + specified. > + The current limitation is that these settings are applied to all crtc. > + > +properties: > + compatible: > + const: virt-drm > + > +patternProperties: > + "^plane(@.*)?$": > + description: Information of the planes used in virtual DRM > + type: object > + > + properties: > + x: > + type: int > + description: x-coordinate of the left-top of the plane in pixels > + > + y: > + type: int > + description: y-coordinate of the left-top of the plane in pixels > + > + width: > + type: int > + description: width of the plane in pixels > + > + height: > + type: int > + description: height of the plane in pixels > + > + zpos: > + type: int > + description: z-position of the plane > + > + required: > + - x > + - y > + - width > + - height > + - zpos > + > +required: > + - compatible > + - "^plane(@.*)?$" > + > +examples: > + - | > + vdrm@0 { > + compatible = "virt-drm"; > + plane@0 { > + x = <200>; > + y = <100>; > + width = <800>; > + height = <600>; > + zpos = <1>; > + }; > + }; > -- > 2.25.1 > >
