Hi Maxime,

Maxime Ripard <maxime@cerno.tech> 于2021年3月24日周三 下午7:13写道：

> On Mon, Feb 22, 2021 at 09:28:21PM +0800, Kevin Tang wrote:
> > From: Kevin Tang <kevin.tang@unisoc.com>
> >
> > Adds MIPI DSI Controller
> > support for Unisoc's display subsystem.
> >
> > Cc: Orson Zhai <orsonzhai@gmail.com>
> > Cc: Chunyan Zhang <zhang.lyra@gmail.com>
> > Signed-off-by: Kevin Tang <kevin.tang@unisoc.com>
> > Reviewed-by: Rob Herring <robh@kernel.org>
> > ---
> >  .../display/sprd/sprd,sharkl3-dsi-host.yaml   | 102 ++++++++++++++++++
> >  1 file changed, 102 insertions(+)
> >  create mode 100644
> Documentation/devicetree/bindings/display/sprd/sprd,sharkl3-dsi-host.yaml
> >
> > diff --git
> a/Documentation/devicetree/bindings/display/sprd/sprd,sharkl3-dsi-host.yaml
> b/Documentation/devicetree/bindings/display/sprd/sprd,sharkl3-dsi-host.yaml
> > new file mode 100644
> > index 000000000..d439f688f
> > --- /dev/null
> > +++
> b/Documentation/devicetree/bindings/display/sprd/sprd,sharkl3-dsi-host.yaml
> > @@ -0,0 +1,102 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id:
> http://devicetree.org/schemas/display/sprd/sprd,sharkl3-dsi-host.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Unisoc MIPI DSI Controller
> > +
> > +maintainers:
> > +  - Kevin Tang <kevin.tang@unisoc.com>
> > +
> > +properties:
> > +  compatible:
> > +    const: sprd,sharkl3-dsi-host
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 2
> > +
> > +  clocks:
> > +    minItems: 1
> > +
> > +  clock-names:
> > +    items:
> > +      - const: clk_src_96m
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  ports:
> > +    type: object
> > +
> > +    properties:
> > +      "#address-cells":
> > +        const: 1
> > +
> > +      "#size-cells":
> > +        const: 0
> > +
> > +      port@0:
> > +        type: object
> > +        description:
> > +          A port node with endpoint definitions as defined in
> > +          Documentation/devicetree/bindings/media/video-interfaces.txt.
> > +          That port should be the input endpoint, usually coming from
> > +          the associated DPU.
> > +      port@1:
> > +        type: object
> > +        description:
> > +          A port node with endpoint definitions as defined in
> > +          Documentation/devicetree/bindings/media/video-interfaces.txt.
> > +          That port should be the output endpoint, usually output to
> > +          the associated panel.
>
> The DSI generic binding asks that peripherals that are controlled
> through a DCS be a subnode of the MIPI-DSI bus, not through a port
> endpoint.
>
 Our DSI controller don't support DCS now...

>
> Maxime
>