Re: [PATCH v3 3/5] dt-bindings: display: convert panel-dpi to DT schema

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Hi Sam,

Thank you for the patch.

On Sun, Feb 16, 2020 at 07:15:11PM +0100, Sam Ravnborg wrote:
> With panel-timing converted, now convert the single
> remaining .txt user in panel/ of panel-timing to DT schema.
> 
> v2:
>   - Drop Thierry as maintainer, as this is not a general panel binding
>     and I have no acks.
>   - Drop requirement for a panel- specific binding - "panel-dpi" is enough
>   - Updated example
> 
> v3:
>   - added yaml document terminator "..."
>   - always require a specific binding - panel-dpi (based on feedback from Rob)
>   - use "power-supply" for the supply property, and made it mandatory
>     "power-supply" is the standard property for panels
> 
> Signed-off-by: Sam Ravnborg <sam@xxxxxxxxxxxx>
> Cc: Rob Herring <robh@xxxxxxxxxx>
> Cc: Thierry Reding <thierry.reding@xxxxxxxxx>
> Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> Cc: Maxime Ripard <mripard@xxxxxxxxxx>

Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>

> ---
>  .../bindings/display/panel/panel-dpi.txt      | 50 -------------
>  .../bindings/display/panel/panel-dpi.yaml     | 72 +++++++++++++++++++
>  2 files changed, 72 insertions(+), 50 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/display/panel/panel-dpi.txt
>  create mode 100644 Documentation/devicetree/bindings/display/panel/panel-dpi.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/panel-dpi.txt b/Documentation/devicetree/bindings/display/panel/panel-dpi.txt
> deleted file mode 100644
> index 6b203bc4d932..000000000000
> --- a/Documentation/devicetree/bindings/display/panel/panel-dpi.txt
> +++ /dev/null
> @@ -1,50 +0,0 @@
> -Generic MIPI DPI Panel
> -======================
> -
> -Required properties:
> -- compatible: "panel-dpi"
> -
> -Optional properties:
> -- label: a symbolic name for the panel
> -- enable-gpios: panel enable gpio
> -- reset-gpios: GPIO to control the RESET pin
> -- vcc-supply: phandle of regulator that will be used to enable power to the display
> -- backlight: phandle of the backlight device
> -
> -Required nodes:
> -- "panel-timing" containing video timings
> -  (Documentation/devicetree/bindings/display/panel/display-timing.txt)
> -- Video port for DPI input
> -
> -Example
> --------
> -
> -lcd0: display@0 {
> -        compatible = "samsung,lte430wq-f0c", "panel-dpi";
> -        label = "lcd";
> -
> -        backlight = <&backlight>;
> -
> -        port {
> -            lcd_in: endpoint {
> -                    remote-endpoint = <&dpi_out>;
> -            };
> -        };
> -
> -        panel-timing {
> -                clock-frequency = <9200000>;
> -                hactive = <480>;
> -                vactive = <272>;
> -                hfront-porch = <8>;
> -                hback-porch = <4>;
> -                hsync-len = <41>;
> -                vback-porch = <2>;
> -                vfront-porch = <4>;
> -                vsync-len = <10>;
> -
> -                hsync-active = <0>;
> -                vsync-active = <0>;
> -                de-active = <1>;
> -                pixelclk-active = <1>;
> -        };
> -};
> diff --git a/Documentation/devicetree/bindings/display/panel/panel-dpi.yaml b/Documentation/devicetree/bindings/display/panel/panel-dpi.yaml
> new file mode 100644
> index 000000000000..40079fc24a63
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/panel-dpi.yaml
> @@ -0,0 +1,72 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/panel-dpi.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Generic MIPI DPI Panel
> +
> +maintainers:
> +  - Sam Ravnborg <sam@xxxxxxxxxxxx>
> +
> +allOf:
> +  - $ref: panel-common.yaml#
> +
> +properties:
> +  compatible:
> +    description:
> +      Shall contain a panel specific compatible and "panel-dpi"
> +      in that order.
> +    items:
> +      - {}
> +      - const: panel-dpi
> +
> +  backlight: true
> +  enable-gpios: true
> +  height-mm: true
> +  label: true
> +  panel-timing: true
> +  port: true
> +  power-supply: true
> +  reset-gpios: true
> +  width-mm: true
> +
> +required:
> +  - panel-timing
> +  - power-supply
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    panel@0 {
> +        compatible = "osddisplays,osd057T0559-34ts", "panel-dpi";
> +        label = "osddisplay";
> +        power-supply = <&vcc_supply>;
> +
> +        backlight = <&backlight>;
> +
> +        port {
> +            lcd_in: endpoint {
> +                remote-endpoint = <&dpi_out>;
> +            };
> +        };
> +        panel-timing {
> +            clock-frequency = <9200000>;
> +            hactive = <800>;
> +            vactive = <480>;
> +            hfront-porch = <8>;
> +            hback-porch = <4>;
> +            hsync-len = <41>;
> +            vback-porch = <2>;
> +            vfront-porch = <4>;
> +            vsync-len = <10>;
> +
> +            hsync-active = <0>;
> +            vsync-active = <0>;
> +            de-active = <1>;
> +            pixelclk-active = <1>;
> +        };
> +    };
> +
> +...
> -- 
> 2.20.1
> 

-- 
Regards,

Laurent Pinchart
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