dt-bindings: display: mediatek: convert the dpi bindings to yaml

Convert display/mediatek/mediatek,dpi.txt to
display/mediatek/mediatek,dpi.yaml and remove the old text
bindings.
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>

Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.txt

-Mediatek DPI Device
-===================
-
-The Mediatek DPI function block is a sink of the display subsystem and
-provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422 pixel data on a parallel
-output bus.
-
-Required properties:
-- compatible: "mediatek,<chip>-dpi"
-  the supported chips are mt2701, mt7623, mt8173 and mt8183.
-- reg: Physical base address and length of the controller's registers
-- interrupts: The interrupt signal from the function block.
-- clocks: device clocks
-  See Documentation/devicetree/bindings/clock/clock-bindings.txt for details.
-- clock-names: must contain "pixel", "engine", and "pll"
-- port: Output port node with endpoint definitions as described in
-  Documentation/devicetree/bindings/graph.txt. This port should be connected
-  to the input port of an attached HDMI or LVDS encoder chip.
-
-Optional properties:
-- pinctrl-names: Contain "default" and "sleep".
-
-Example:
-
-dpi0: dpi@1401d000 {
-	compatible = "mediatek,mt8173-dpi";
-	reg = <0 0x1401d000 0 0x1000>;
-	interrupts = <GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>;
-	clocks = <&mmsys CLK_MM_DPI_PIXEL>,
-		 <&mmsys CLK_MM_DPI_ENGINE>,
-		 <&apmixedsys CLK_APMIXED_TVDPLL>;
-	clock-names = "pixel", "engine", "pll";
-	pinctrl-names = "default", "sleep";
-	pinctrl-0 = <&dpi_pin_func>;
-	pinctrl-1 = <&dpi_pin_idle>;
-
-	port {
-		dpi0_out: endpoint {
-			remote-endpoint = <&hdmi0_in>;
-		};
-	};
-};

Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,dpi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: mediatek DPI Controller Device Tree Bindings
+
+maintainers:
+  - CK Hu <ck.hu@mediatek.com>
+  - Jitao shi <jitao.shi@mediatek.com>
+
+description: |
+  The Mediatek DPI function block is a sink of the display subsystem and
+  provides 8-bit RGB/YUV444 or 8/10/10-bit YUV422 pixel data on a parallel
+  output bus.
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt2701-dpi
+      - mediatek,mt7623-dpi
+      - mediatek,mt8173-dpi
+      - mediatek,mt8183-dpi
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Pixel Clock
+      - description: Engine Clock
+      - description: DPI PLL
+
+  clock-names:
+    items:
+      - const: pixel
+      - const: engine
+      - const: pll
+
+  pinctrl-0: true
+  pinctrl-1: true
+
+  pinctrl-names:
+    items:
+      - const: default
+      - const: sleep
+
+  port:
+    type: object
+    description:
+      Output port node with endpoint definitions as described in
+      Documentation/devicetree/bindings/graph.txt. This port should be connected
+      to the input port of an attached HDMI or LVDS encoder chip.
+
+    properties:
+      endpoint:
+        type: object
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - port
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/mt8173-clk.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    dpi0: dpi@1401d000 {
+        compatible = "mediatek,mt8173-dpi";
+        reg = <0x1401d000 0x1000>;
+        interrupts = <GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>;
+        clocks = <&mmsys CLK_MM_DPI_PIXEL>,
+             <&mmsys CLK_MM_DPI_ENGINE>,
+             <&apmixedsys CLK_APMIXED_TVDPLL>;
+        clock-names = "pixel", "engine", "pll";
+        pinctrl-names = "default", "sleep";
+        pinctrl-0 = <&dpi_pin_func>;
+        pinctrl-1 = <&dpi_pin_idle>;
+
+        port {
+            dpi0_out: endpoint {
+                remote-endpoint = <&hdmi0_in>;
+            };
+        };
+    };
+
+...