dt-bindings: panel: Convert Samsung SOFEF00 DDIC into standalone yaml

Reason for moving from simple panel is this DDIC has three supplies,
while panel-simple-dsi is limited to one.

Previous compatible only described the DDIC, but didn't include panel
connected to it. Let's fix it, and offer bindings authors two
compatibles to distinguish the connected panel.

Basic description for SOFEF00 DDIC with attached panels

 - Samsung AMS601NT22 6.01 inch, 1080x2160 pixels, 18:9 ratio
 - Samsung AMS628NW01 6.28 inch, 1080x2280 pixels, 19:9 ratio

There is only one user which uses samsung,sofef00 and it's updated to
comply within this patch series.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: David Heidelberg <david@ixit.cz>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20251119-sofef00-rebuild-v3-1-6cd55471e84e@ixit.cz

3 files changed, 90 insertions, 21 deletions

diff --git a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
index 4c4b7cc75669..8d668979b62d 100644
--- a/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
+++ b/Documentation/devicetree/bindings/display/panel/panel-simple-dsi.yaml
@@ -19,6 +19,9 @@ description: |
 
   If the panel is more advanced a dedicated binding file is required.
 
+allOf:
+  - $ref: panel-common.yaml#
+
 properties:
 
   compatible:
@@ -54,8 +57,6 @@ properties:
       - panasonic,vvx10f034n00
         # Samsung s6e3fa7 1080x2220 based AMS559NK06 AMOLED panel
       - samsung,s6e3fa7-ams559nk06
-        # Samsung sofef00 1080x2280 AMOLED panel
-      - samsung,sofef00
         # Shangai Top Display Optoelectronics 7" TL070WSH30 1024x600 TFT LCD panel
       - tdo,tl070wsh30
 
@@ -68,30 +69,12 @@ properties:
   reset-gpios: true
   port: true
   power-supply: true
-  vddio-supply: true
-
-allOf:
-  - $ref: panel-common.yaml#
-  - if:
-      properties:
-        compatible:
-          enum:
-            - samsung,sofef00
-    then:
-      properties:
-        power-supply: false
-      required:
-        - vddio-supply
-    else:
-      properties:
-        vddio-supply: false
-      required:
-        - power-supply
 
 additionalProperties: false
 
 required:
   - compatible
+  - power-supply
   - reg
 
 examples:
diff --git a/Documentation/devicetree/bindings/display/panel/samsung,sofef00.yaml b/Documentation/devicetree/bindings/display/panel/samsung,sofef00.yaml
new file mode 100644
index 000000000000..eeee3cac72e3
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/samsung,sofef00.yaml
@@ -0,0 +1,79 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/samsung,sofef00.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung SOFEF00 AMOLED DDIC
+
+description: The SOFEF00 is display driver IC with connected panel.
+
+maintainers:
+  - David Heidelberg <david@ixit.cz>
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+            # Samsung 6.01 inch, 1080x2160 pixels, 18:9 ratio
+          - samsung,sofef00-ams601nt22
+            # Samsung 6.28 inch, 1080x2280 pixels, 19:9 ratio
+          - samsung,sofef00-ams628nw01
+      - const: samsung,sofef00
+
+  reg:
+    maxItems: 1
+
+  poc-supply:
+    description: POC regulator
+
+  vci-supply:
+    description: VCI regulator
+
+  vddio-supply:
+    description: VDD regulator
+
+required:
+  - compatible
+  - reset-gpios
+  - poc-supply
+  - vci-supply
+  - vddio-supply
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "samsung,sofef00-ams628nw01", "samsung,sofef00";
+            reg = <0>;
+
+            vddio-supply = <&vreg_l14a_1p88>;
+            vci-supply = <&s2dos05_buck1>;
+            poc-supply = <&s2dos05_ldo1>;
+
+            te-gpios = <&tlmm 10 GPIO_ACTIVE_HIGH>;
+            reset-gpios = <&tlmm 6 GPIO_ACTIVE_HIGH>;
+
+            pinctrl-0 = <&panel_active>;
+            pinctrl-1 = <&panel_suspend>;
+            pinctrl-names = "default", "sleep";
+
+            port {
+                panel_in: endpoint {
+                    remote-endpoint = <&mdss_dsi0_out>;
+                };
+            };
+        };
+    };
+
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 5d59ff76cfc6..c830fd648572 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8080,6 +8080,13 @@ S:	Maintained
 F:	Documentation/devicetree/bindings/display/panel/samsung,s6e3ha8.yaml
 F:	drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c
 
+DRM DRIVER FOR SAMSUNG SOFEF00 DDIC
+M:	David Heidelberg <david@ixit.cz>
+M:	Casey Connolly <casey.connolly@linaro.org>
+S:	Maintained
+F:	Documentation/devicetree/bindings/display/panel/samsung,sofef00.yaml
+F:	drivers/gpu/drm/panel/panel-samsung-sofef00.c
+
 DRM DRIVER FOR SHARP MEMORY LCD
 M:	Alex Lanzano <lanzano.alex@gmail.com>
 S:	Maintained