dt-bindings: display: panel: Add compatible for starry-er88577

The starry-er88577 is a 10.1" WXGA TFT-LCD panel, and the init_code
of the starry-er88577 panel is very similar to the boe-th101mb31ig002
panel, so We will add a new configuration based on
"boe,th101mb31ig002-28a.yaml".

Because the panel used reset gpio before but did not add the definition
of "reset gpio" in binding, reset gpio was added in binding, but since
the starry-er88577 panel did not use "reset gpio", a judgment was added
here.

Signed-off-by: Zhaoxiong Lv <lvzhaoxiong@huaqin.corp-partner.google.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240709134754.28013-5-lvzhaoxiong@huaqin.corp-partner.google.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240709134754.28013-5-lvzhaoxiong@huaqin.corp-partner.google.com

Documentation/devicetree/bindings/display/panel/boe,th101mb31ig002-28a.yaml

@@ -9,20 +9,20 @@ title: BOE TH101MB31IG002-28A WXGA DSI Display Panel
 maintainers:
   - Manuel Traut <manut@mecka.net>
 
-allOf:
-  - $ref: panel-common.yaml#
-
 properties:
   compatible:
     enum:
         # BOE TH101MB31IG002-28A 10.1" WXGA TFT LCD panel
       - boe,th101mb31ig002-28a
+        # The Starry-er88577 is a 10.1" WXGA TFT-LCD panel
+      - starry,er88577
 
   reg:
     maxItems: 1
 
   backlight: true
   enable-gpios: true
+  reset-gpios: true
   power-supply: true
   port: true
   rotation: true
@@ -33,6 +33,20 @@ required:
   - enable-gpios
   - power-supply
 
+allOf:
+  - $ref: panel-common.yaml#
+  - if:
+      properties:
+        compatible:
+          # The Starry-er88577 is a 10.1" WXGA TFT-LCD panel
+          const: starry,er88577
+    then:
+      properties:
+        reset-gpios: false
+    else:
+      required:
+        - reset-gpios
+
 additionalProperties: false
 
 examples:
@@ -47,6 +61,7 @@ examples:
             reg = <0>;
             backlight = <&backlight_lcd0>;
             enable-gpios = <&gpio 45 GPIO_ACTIVE_HIGH>;
+            reset-gpios = <&gpio 55 GPIO_ACTIVE_LOW>;
             rotation = <90>;
             power-supply = <&vcc_3v3>;
             port {