From: Icenowy Zheng <icen...@aosc.io>

Xingbangda XBD599 is a 5.99" 720x1440 MIPI-DSI LCD panel. It is based on
Sitronix ST7703 LCD controller.

Add its device tree binding.

Signed-off-by: Icenowy Zheng <icen...@aosc.io>
Signed-off-by: Ondrej Jirman <meg...@megous.com>
Reviewed-by: Linus Walleij <linus.wall...@linaro.org>
Reviewed-by: Rob Herring <r...@kernel.org>
---
 .../display/panel/sitronix,st7703.yaml        | 63 +++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100644 
Documentation/devicetree/bindings/display/panel/sitronix,st7703.yaml

diff --git 
a/Documentation/devicetree/bindings/display/panel/sitronix,st7703.yaml 
b/Documentation/devicetree/bindings/display/panel/sitronix,st7703.yaml
new file mode 100644
index 000000000000..6e1606db4ab4
--- /dev/null
+++ b/Documentation/devicetree/bindings/display/panel/sitronix,st7703.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/sitronix,st7703.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sitronix ST7703 MIPI DSI panel
+
+maintainers:
+  - Icenowy Zheng <icen...@aosc.io>
+  - Ondrej Jirman <meg...@megous.com>
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+        - xingbangda,xbd599
+      - const: sitronix,st7703
+
+  reg:
+    description: DSI virtual channel used by that screen
+    maxItems: 1
+
+  vcc-supply:
+    description: regulator that supplies the VCC voltage
+
+  iovcc-supply:
+    description: regulator that supplies the IOVCC voltage
+
+  reset-gpios: true
+
+  backlight: true
+
+required:
+  - compatible
+  - reg
+  - vcc-supply
+  - iovcc-supply
+  - reset-gpios
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "xingbangda,xbd599", "sitronix,st7703";
+            reg = <0>;
+            reset-gpios = <&pio 3 24 GPIO_ACTIVE_HIGH>; /* LCD-RST: PD24 */
+            iovcc-supply = <&reg_dldo2>;
+            vcc-supply = <&reg_ldo_io0>;
+            backlight = <&backlight>;
+        };
+    };
+
-- 
2.27.0

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