linux-kernel - Re: [drm-drm-misc:drm-misc-next] dt-bindings: nt35510: document 'port' property

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Date: Tue, 30 Jan 2024 09:14:28 -0600
From: Rob Herring <robh@...nel.org>
To: Dario Binacchi <dario.binacchi@...rulasolutions.com>
Cc: linux-kernel@...r.kernel.org,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Conor Dooley <conor+dt@...nel.org>, Daniel Vetter <daniel@...ll.ch>,
	David Airlie <airlied@...il.com>,
	Jessica Zhang <quic_jesszhan@...cinc.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Sam Ravnborg <sam@...nborg.org>,
	Thomas Zimmermann <tzimmermann@...e.de>, devicetree@...r.kernel.org,
	dri-devel@...ts.freedesktop.org
Subject: Re: [drm-drm-misc:drm-misc-next] dt-bindings: nt35510: document
 'port' property

On Sat, Jan 27, 2024 at 04:28:08PM +0100, Dario Binacchi wrote:
> Allow 'port' property (coming from panel-common.yaml) to be used in DTS:
> 
>   st/stm32f769-disco-mb1166-reva09.dtb: panel@0: 'port' does not match any of the regexes: 'pinctrl-[0-9]+'
> 
> Signed-off-by: Dario Binacchi <dario.binacchi@...rulasolutions.com>
> Cc: Alexandre Torgue <alexandre.torgue@...s.st.com>
> 
> ---
> 
>  .../display/panel/novatek,nt35510.yaml        | 34 +++++++++++++++++++
>  1 file changed, 34 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml b/Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml
> index a4afaff483b7..72913719df23 100644
> --- a/Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml
> +++ b/Documentation/devicetree/bindings/display/panel/novatek,nt35510.yaml
> @@ -31,6 +31,22 @@ properties:
>    vddi-supply:
>      description: regulator that supplies the vddi voltage
>    backlight: true
> +  port:
> +    $ref: /schemas/graph.yaml#/properties/port

Just 'port: true'

> +
> +if:
> +  properties:
> +    compatible:
> +      contains:
> +        enum:
> +          - frida,frd400b25025
> +then:
> +  required:
> +    - port
> +
> +else:
> +  properties:
> +    port: false

No need for this. 'port' should be allowed for everyone.

>  
>  required:
>    - compatible
> @@ -54,5 +70,23 @@ examples:
>              backlight = <&gpio_bl>;
>          };
>      };
> +  - |
> +    dsi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        panel@0 {
> +            compatible = "frida,frd400b25025", "novatek,nt35510";
> +            vddi-supply = <&vcc_3v3>;
> +            vdd-supply = <&vcc_3v3>;
> +            reg = <0>; /* dsi virtual channel (0..3) */
> +            reset-gpios = <&gpioj 15 GPIO_ACTIVE_LOW>;
>  
> +            port {
> +                dsi_panel_in: endpoint {
> +                    remote-endpoint = <&dsi_out>;
> +                };
> +            };
> +        };
> +    };
>  ...
> -- 
> 2.43.0
>