On Wed, Feb 26, 2020 at 3:46 AM Kevin Tang <kevin3.tang@xxxxxxxxx> wrote: > > From: Kevin Tang <kevin.tang@xxxxxxxxxx> > > The Unisoc DRM master device is a virtual device needed to list all > DPU devices or other display interface nodes that comprise the > graphics subsystem > > Cc: Orson Zhai <orsonzhai@xxxxxxxxx> > Cc: Baolin Wang <baolin.wang@xxxxxxxxxx> > Cc: Chunyan Zhang <zhang.lyra@xxxxxxxxx> > Signed-off-by: Kevin Tang <kevin.tang@xxxxxxxxxx> > --- > .../devicetree/bindings/display/sprd/drm.yaml | 36 ++++++++++++++++++++++ > 1 file changed, 36 insertions(+) > create mode 100644 Documentation/devicetree/bindings/display/sprd/drm.yaml > > diff --git a/Documentation/devicetree/bindings/display/sprd/drm.yaml b/Documentation/devicetree/bindings/display/sprd/drm.yaml > new file mode 100644 > index 0000000..b5792c0 > --- /dev/null > +++ b/Documentation/devicetree/bindings/display/sprd/drm.yaml > @@ -0,0 +1,36 @@ > +# SPDX-License-Identifier: GPL-2.0 > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/sprd/drm.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Unisoc DRM master device > + > +maintainers: > + - Mark Rutland <mark.rutland@xxxxxxx> > + > +description: | > + The Unisoc DRM master device is a virtual device needed to list all > + DPU devices or other display interface nodes that comprise the > + graphics subsystem. > + > +properties: > + compatible: > + const: sprd,display-subsystem > + > + ports: > + description: > + Should contain a list of phandles pointing to display interface port > + of DPU devices. > + > +required: > + - compatible > + - ports > + > +examples: > + - | > + display-subsystem { > + compatible = "sprd,display-subsystem"; > + ports = <&dpu_out>; We try to avoid these virtual nodes and bind with actual h/w nodes. Can you have more than one DPU and if so does it need to be a single DRM driver instance? Rob _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
