Hi Maxime,
Maxime Ripard <maxime@xxxxxxxxxx> 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@xxxxxxxxxx>
>
> Adds MIPI DSI Controller
> support for Unisoc's display subsystem.
>
> Cc: Orson Zhai <orsonzhai@xxxxxxxxx>
> Cc: Chunyan Zhang <zhang.lyra@xxxxxxxxx>
> Signed-off-by: Kevin Tang <kevin.tang@xxxxxxxxxx>
> Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
> ---
> .../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@xxxxxxxxxx>
> +
> +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
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