linux-kernel - [PATCH v5 3/4] dt-bindings: display: Add SSD133x OLED controllers

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Message-ID: <20231229112026.2797483-4-javierm@redhat.com>
Date: Fri, 29 Dec 2023 12:20:20 +0100
From: Javier Martinez Canillas <javierm@...hat.com>
To: linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Maxime Ripard <mripard@...nel.org>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Jocelyn Falempe <jfalempe@...hat.com>,
	Conor Dooley <conor@...nel.org>,
	Peter Robinson <pbrobinson@...il.com>,
	Javier Martinez Canillas <javierm@...hat.com>,
	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: [PATCH v5 3/4] dt-bindings: display: Add SSD133x OLED controllers

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>
Reviewed-by: Rob Herring <robh@...nel.org>
---

Changes in v5:
- Drop I2C example in DT binding schema due that bus not being supported.

Changes in v3:
- Move solomon,ssd-common.yaml ref before the properties section and
  width/height constraints after the other properties (Conor Dooley).

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     | 45 +++++++++++++++++++
 1 file changed, 45 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..b7780038a34b
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/solomon,ssd133x.yaml
@@ -0,0 +1,45 @@
+# 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>
+
+allOf:
+  - $ref: solomon,ssd-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - solomon,ssd1331
+
+  solomon,width:
+    default: 96
+
+  solomon,height:
+    default: 64
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        oled@0 {
+            compatible = "solomon,ssd1331";
+            reg = <0x0>;
+            reset-gpios = <&gpio2 7>;
+            dc-gpios = <&gpio2 8>;
+            spi-max-frequency = <10000000>;
+        };
+    };
-- 
2.43.0