On Mon, Nov 30, 2020 at 7:28 AM Kevin Tang <[email protected]> wrote: > > From: Kevin Tang <[email protected]>
Once again, DT patches must Cc the DT list if you want them reviewed. > > 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 <[email protected]> > Cc: Chunyan Zhang <[email protected]> > Signed-off-by: Kevin Tang <[email protected]> > --- > .../display/sprd/sprd,display-subsystem.yaml | 39 > ++++++++++++++++++++++ > 1 file changed, 39 insertions(+) > create mode 100644 > Documentation/devicetree/bindings/display/sprd/sprd,display-subsystem.yaml > > diff --git > a/Documentation/devicetree/bindings/display/sprd/sprd,display-subsystem.yaml > b/Documentation/devicetree/bindings/display/sprd/sprd,display-subsystem.yaml > new file mode 100644 > index 0000000..9487a39 > --- /dev/null > +++ > b/Documentation/devicetree/bindings/display/sprd/sprd,display-subsystem.yaml > @@ -0,0 +1,39 @@ > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/display/sprd/sprd,display-subsystem.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Unisoc DRM master device > + > +maintainers: > + - Kevin Tang <[email protected]> > + > +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 As I said before, we try to avoid these virtual nodes. Make the DRM driver bind to the DPU node. The case where this might be needed is if you have h/w that's a mixture of shared and discrete blocks. I don't see anything here matching that. Rob
