linux-kernel - [PATCH v4 6/6] dt-bindings: display: Add SSD132x OLED controllers

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Message-ID: <20231014071520.1342189-7-javierm@redhat.com>
Date:   Sat, 14 Oct 2023 09:15:08 +0200
From:   Javier Martinez Canillas <javierm@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     Rob Herring <robh@...nel.org>,
        Peter Robinson <pbrobinson@...il.com>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Maxime Ripard <mripard@...nel.org>,
        Conor Dooley <conor@...nel.org>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        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 v4 6/6] dt-bindings: display: Add SSD132x OLED controllers

Add a Device Tree binding schema for the OLED panels based on the Solomon
SSD132x family of controllers.

Signed-off-by: Javier Martinez Canillas <javierm@...hat.com>
Reviewed-by: Rob Herring <robh@...nel.org>
Acked-by: Thomas Zimmermann <tzimmermann@...e.de>
---

(no changes since v3)

Changes in v3:
- Add Rob Herring's Reviewed-by tag to patch #6.

Changes in v2:
- Remove unnecessary 'oneOf' in the SSD132x DT binding schema (Conor Dooley).
- Remove unused DT nodes labels in the binding schema examples (Conor Dooley).
- Split out common Solomon properties into a separate schema (Rob Herring).

 .../bindings/display/solomon,ssd132x.yaml     | 89 +++++++++++++++++++
 MAINTAINERS                                   |  2 +-
 2 files changed, 90 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/display/solomon,ssd132x.yaml

diff --git a/Documentation/devicetree/bindings/display/solomon,ssd132x.yaml b/Documentation/devicetree/bindings/display/solomon,ssd132x.yaml
new file mode 100644
index 000000000000..0aa41bd9ddca
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/solomon,ssd132x.yaml
@@ -0,0 +1,89 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/solomon,ssd132x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Solomon SSD132x OLED Display Controllers
+
+maintainers:
+  - Javier Martinez Canillas <javierm@...hat.com>
+
+properties:
+  compatible:
+    - enum:
+        - solomon,ssd1322
+        - solomon,ssd1325
+        - solomon,ssd1327
+
+required:
+  - compatible
+  - reg
+
+allOf:
+  - $ref: solomon,ssd-common.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: solomon,ssd1322
+    then:
+      properties:
+        width:
+          default: 480
+        height:
+          default: 128
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: solomon,ssd1325
+    then:
+      properties:
+        width:
+          default: 128
+        height:
+          default: 80
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: solomon,ssd1327
+    then:
+      properties:
+        width:
+          default: 128
+        height:
+          default: 128
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    i2c {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            oled@3c {
+                    compatible = "solomon,ssd1327";
+                    reg = <0x3c>;
+                    reset-gpios = <&gpio2 7>;
+            };
+
+    };
+  - |
+    spi {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            oled@0 {
+                    compatible = "solomon,ssd1327";
+                    reg = <0x0>;
+                    reset-gpios = <&gpio2 7>;
+                    dc-gpios = <&gpio2 8>;
+                    spi-max-frequency = <10000000>;
+            };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index c63649e9ba58..4b518429458b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6766,7 +6766,7 @@ M:	Javier Martinez Canillas <javierm@...hat.com>
 S:	Maintained
 T:	git git://anongit.freedesktop.org/drm/drm-misc
 F:	Documentation/devicetree/bindings/display/solomon,ssd-common.yaml
-F:	Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
+F:	Documentation/devicetree/bindings/display/solomon,ssd13*.yaml
 F:	drivers/gpu/drm/solomon/ssd130x*
 
 DRM DRIVER FOR ST-ERICSSON MCDE
-- 
2.41.0