linux-kernel - Re: [PATCH v2 1/2] dt-bindings: display: Add SSD133x OLED controllers

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Message-ID: <20231218-example-envision-b41ca8efa251@spud>
Date: Mon, 18 Dec 2023 14:47:47 +0000
From: Conor Dooley <conor@...nel.org>
To: Javier Martinez Canillas <javierm@...hat.com>
Cc: linux-kernel@...r.kernel.org, Maxime Ripard <mripard@...nel.org>,
	Jocelyn Falempe <jfalempe@...hat.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Peter Robinson <pbrobinson@...il.com>,
	Rob Herring <robh@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
	Daniel Vetter <daniel@...ll.ch>, David Airlie <airlied@...il.com>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
	dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH v2 1/2] dt-bindings: display: Add SSD133x OLED controllers

On Mon, Dec 18, 2023 at 02:20:35PM +0100, Javier Martinez Canillas wrote:
> Add a Device Tree binding schema for the OLED panels based on the
> Solomon SSD133x family of controllers.
> 
> Signed-off-by: Javier Martinez Canillas <javierm@...hat.com>
> ---
> 
> Changes in v2:
> - Unconditionally set the width and height constraints (Conor Dooley).
> - Fix indentation in the DTS examples (Krzysztof Kozlowski).
> 
>  .../bindings/display/solomon,ssd133x.yaml     | 57 +++++++++++++++++++
>  1 file changed, 57 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/solomon,ssd133x.yaml
> 
> diff --git a/Documentation/devicetree/bindings/display/solomon,ssd133x.yaml b/Documentation/devicetree/bindings/display/solomon,ssd133x.yaml
> new file mode 100644
> index 000000000000..8feee9eef0fd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/solomon,ssd133x.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/display/solomon,ssd133x.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Solomon SSD133x OLED Display Controllers
> +
> +maintainers:
> +  - Javier Martinez Canillas <javierm@...hat.com>
> +
> +properties:
> +  compatible:
> +    enum:
> +      - solomon,ssd1331
> +
> +required:
> +  - compatible
> +  - reg
> +
> +allOf:
> +  - $ref: solomon,ssd-common.yaml#
> +
> +  - properties:
> +      width:
> +        default: 96
> +      height:
> +        default: 64

diff --git a/Documentation/devicetree/bindings/display/solomon,ssd133x.yaml b/Documentation/devicetree/bindings/display/solomon,ssd133x.yaml
index 8feee9eef0fd..ffc939c782eb 100644
--- a/Documentation/devicetree/bindings/display/solomon,ssd133x.yaml
+++ b/Documentation/devicetree/bindings/display/solomon,ssd133x.yaml
@@ -9,24 +9,24 @@ title: Solomon SSD133x OLED Display Controllers
 maintainers:
   - Javier Martinez Canillas <javierm@...hat.com>
 
+allOf:
+  - $ref: solomon,ssd-common.yaml#
+
 properties:
   compatible:
     enum:
       - solomon,ssd1331
 
+  width:
+    default: 96
+
+  height:
+    default: 64
+
 required:
   - compatible
   - reg
 
-allOf:
-  - $ref: solomon,ssd-common.yaml#
-
-  - properties:
-      width:
-        default: 96
-      height:
-        default: 64
-
 unevaluatedProperties: false
 
 examples:

The properties stuff doesn't need to be in the allOf. Although, I took
the opportunity to look at ssd-common.yaml. How do the height/width here
differ from the vendor prefixed versions in that file?

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