dt-bindings: display: panel: Document Raydium RM69220 DDIC

Document the Raydium RM69220 DDIC and the BOE BF068MWM-TD0 6.77"
1080x2392 AMOLED display panel used in the Nothing Phone (3a).

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Alexander Koskovich <akoskovich@pm.me>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20261001-asteroids-panel-support-v4-1-fb228194ad91@pm.me

Documentation/devicetree/bindings/display/panel/raydium,rm69220.yaml

@@ -0,0 +1,74 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/raydium,rm69220.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Raydium RM69220 based MIPI-DSI panels
+
+maintainers:
+  - Alexander Koskovich <akoskovich@pm.me>
+
+description:
+  The Raydium RM69220 is a generic DSI Panel IC used to control
+  AMOLED panels.
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - boe,bf068mwm-td0
+      - const: raydium,rm69220
+
+  reg:
+    maxItems: 1
+
+  dvdd-supply:
+    description: Digital voltage rail
+
+  vci-supply:
+    description: Analog voltage rail
+
+  vddio-supply:
+    description: I/O voltage rail
+
+required:
+  - compatible
+  - reg
+  - dvdd-supply
+  - vci-supply
+  - vddio-supply
+  - reset-gpios
+  - port
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "boe,bf068mwm-td0", "raydium,rm69220";
+            reg = <0>;
+
+            reset-gpios = <&tlmm 12 GPIO_ACTIVE_LOW>;
+            dvdd-supply = <&vreg_oled_dvdd_1p8>;
+            vci-supply = <&vreg_l19b>;
+            vddio-supply = <&vreg_l9b>;
+
+            port {
+                panel_in_0: endpoint {
+                    remote-endpoint = <&dsi0_out>;
+                };
+            };
+        };
+    };
+
+...

MAINTAINERS

@@ -8456,6 +8456,11 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/display/panel/raydium,rm67191.yaml
 F:	drivers/gpu/drm/panel/panel-raydium-rm67191.c
 
+DRM DRIVER FOR RAYDIUM RM69220 PANELS
+M:	Alexander Koskovich <akoskovich@pm.me>
+S:	Maintained
+F:	Documentation/devicetree/bindings/display/panel/raydium,rm69220.yaml
+
 DRM DRIVER FOR SAMSUNG DB7430 PANELS
 M:	Linus Walleij <linusw@kernel.org>
 S:	Maintained