linux-kernel - Re: [PATCH 1/2] dt-bindings: display/panel: Add AUO A030JTN01

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Date:   Tue, 31 Aug 2021 08:59:28 -0500
From:   Rob Herring <robh@...nel.org>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Sam Ravnborg <sam@...nborg.org>,
        Christophe Branchereau <cbranchereau@...il.com>,
        list@...ndingux.net, dri-devel@...ts.freedesktop.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: display/panel: Add AUO A030JTN01

On Sat, Aug 28, 2021 at 12:26:39PM +0100, Paul Cercueil wrote:
> Add binding for the AUO A030JTN01 panel, which is a 320x480 3.0" 4:3
> 24-bit TFT LCD panel with non-square pixels and a delta-RGB 8-bit
> interface.
> 
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> ---
>  .../bindings/display/panel/auo,a030jtn01.yaml | 57 +++++++++++++++++++
>  1 file changed, 57 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/panel/auo,a030jtn01.yaml

This appears to be panel-simple.yaml plus 'reg' (and potentially other 
SPI properties). Perhaps rename to panel-simple-spi.yaml? Maybe there's 
others already?

> 
> diff --git a/Documentation/devicetree/bindings/display/panel/auo,a030jtn01.yaml b/Documentation/devicetree/bindings/display/panel/auo,a030jtn01.yaml
> new file mode 100644
> index 000000000000..21c9d62e3625
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/panel/auo,a030jtn01.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/panel/auo,a030jtn01.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: AUO A030JTN01 3.0" (320x480 pixels) 24-bit TFT LCD
> +
> +description: |
> +  The panel must obey the rules for a SPI slave device as specified in
> +  spi/spi-controller.yaml
> +
> +maintainers:
> +  - Paul Cercueil <paul@...pouillou.net>
> +
> +allOf:
> +  - $ref: panel-common.yaml#
> +
> +properties:
> +  compatible:
> +    const: auo,a030jtn01
> +
> +  backlight: true
> +  port: true
> +  power-supply: true
> +  reg: true
> +  reset-gpios: true
> +
> +required:
> +  - compatible
> +  - reg
> +  - power-supply
> +  - reset-gpios
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +
> +    panel@0 {
> +      compatible = "auo,a030jtn01";
> +      reg = <0>;
> +
> +      spi-max-frequency = <10000000>;
> +
> +      reset-gpios = <&gpe 4 GPIO_ACTIVE_LOW>;
> +      power-supply = <&lcd_power>;
> +
> +      backlight = <&backlight>;
> +
> +      port {
> +        panel_input: endpoint {
> +          remote-endpoint = <&panel_output>;
> +        };
> +      };
> +    };
> -- 
> 2.33.0
> 
>