dt-bindings: add bindings for the Sharp LS060T1SX01 panel

Add devicetree bindings for the Sharp LS060T1SX01 6.0" FullHD panel
using NT35695 driver. This panel can be found i.e. in the Dragonboard
Display Adapter bundle.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210926001005.3442668-2-dmitry.baryshkov@linaro.org

Documentation/devicetree/bindings/display/panel/sharp,ls060t1sx01.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/panel/sharp,ls060t1sx01.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Sharp Microelectronics 6.0" FullHD TFT LCD panel
+
+maintainers:
+  - Dmitry Baryskov <dmitry.baryshkov@linaro.org>
+
+allOf:
+  - $ref: panel-common.yaml#
+
+properties:
+  compatible:
+    const: sharp,ls060t1sx01
+
+  reg: true
+  backlight: true
+  reset-gpios: true
+  port: true
+
+  avdd-supply:
+    description: handle of the regulator that provides the positive supply voltage
+  avee-supply:
+    description: handle of the regulator that provides the negative supply voltage
+  vddi-supply:
+    description: handle of the regulator that provides the I/O supply voltage
+  vddh-supply:
+    description: handle of the regulator that provides the analog supply voltage
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+
+    dsi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        panel@0 {
+            compatible = "sharp,ls060t1sx01";
+            reg = <0>;
+            avdd-supply = <&pm8941_l22>;
+            backlight = <&backlight>;
+            reset-gpios = <&pm8916_gpios 25 GPIO_ACTIVE_LOW>;
+        };
+    };
+
+...