Re: [PATCH 3/4] dt-bindings: panel: Add LG SW43408 MIPI-DSI panel

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Hi Caleb,

On Mon, Jul 18, 2022 at 10:30:50PM +0100, Caleb Connolly wrote:
> From: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
> 
> LG SW43408 is 1080x2160, 4-lane MIPI-DSI panel.
A few things to improve to this binding.

	Sam
> 
> Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
> Signed-off-by: Sumit Semwal <sumit.semwal@xxxxxxxxxx>
> [caleb: convert to yaml]
> Signed-off-by: Caleb Connolly <caleb@xxxxxxxxxxxxx>
> ---
>  .../bindings/display/panel/lg,43408.yaml      | 41 +++++++++++++++++++
>  .../display/panel/panel-simple-dsi.yaml       |  2 +
>  2 files changed, 43 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/lg,43408.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/lg,43408.yaml b/Documentation/devicetree/bindings/display/panel/lg,43408.yaml
> new file mode 100644
> index 000000000000..0529a3aa2692
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/lg,43408.yaml
> @@ -0,0 +1,41 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/panel-lvds.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: LG SW43408 1080x2160 DSI panel
> +
> +maintainers:
> +  - Caleb Connolly <caleb@xxxxxxxxxxxxx>
> +
> +description: |
> +  This panel is used on the Pixel 3, it is a 60hz OLED panel which
> +  required DSC (Display Stream Compression) and has rounded corners.
> +
> +allOf:
> +  - $ref: panel-common.yaml#
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: lg,sw43408
> +
> +  vddi-supply: true
> +  vpnl-supply: true
> +  reset-gpios: true
> +
> +  backlight: false
> +  power-supply: false
No need to say anything is false, this is covered by the statement below.
Also, the driver uses backlight, so it should be true?
> +
> +additionalProperties: false
> +
> +required:
> +  - compatible
> +  - data-mapping
> +  - width-mm
> +  - height-mm
> +  - panel-timing
> +  - port
> +
> +...
> diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
> index 2c00813f5d20..4498078cb1ee 100644
> --- a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
> +++ b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
> @@ -45,6 +45,8 @@ properties:
>        - lg,acx467akm-7
>          # LG Corporation 7" WXGA TFT LCD panel
>        - lg,ld070wx3-sl01
> +        # LG Corporation sw43408 1080x2160 OLED
> +      - lg,sw43408
The panel uses three power-supplies, so it is not a "panel-simple"
binding. And we cannot have the same compatible twice, so this must be
dropped.

	Sam



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