dt-bindings: msm/mdp4: convert to yaml format

Convert mdp4 binding into yaml format.
Signed-off-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220109171814.16103-1-david@ixit.cz

Documentation/devicetree/bindings/display/msm/mdp4.txt

-Qualcomm adreno/snapdragon MDP4 display controller
-
-Description:
-
-This is the bindings documentation for the MDP4 display controller found in
-SoCs like MSM8960, APQ8064 and MSM8660.
-
-Required properties:
-- compatible:
-  * "qcom,mdp4" - mdp4
-- reg: Physical base address and length of the controller's registers.
-- interrupts: The interrupt signal from the display controller.
-- clocks: device clocks
-  See ../clocks/clock-bindings.txt for details.
-- clock-names: the following clocks are required.
-  * "core_clk"
-  * "iface_clk"
-  * "bus_clk"
-  * "lut_clk"
-  * "hdmi_clk"
-  * "tv_clk"
-- ports: contains the list of output ports from MDP. These connect to interfaces
-  that are external to the MDP hardware, such as HDMI, DSI, EDP etc (LVDS is a
-  special case since it is a part of the MDP block itself).
-
-  Each output port contains an endpoint that describes how it is connected to an
-  external interface. These are described by the standard properties documented
-  here:
-	Documentation/devicetree/bindings/graph.txt
-	Documentation/devicetree/bindings/media/video-interfaces.txt
-
-  The output port mappings are:
-	Port 0 -> LCDC/LVDS
-	Port 1 -> DSI1 Cmd/Video
-	Port 2 -> DSI2 Cmd/Video
-	Port 3 -> DTV
-
-Optional properties:
-- clock-names: the following clocks are optional:
-  * "lut_clk"
-- qcom,lcdc-align-lsb: Boolean value indicating that LSB alignment should be
-  used for LCDC. This is only valid for 18bpp panels.
-
-Example:
-
-/ {
-	...
-
-	hdmi: hdmi@4a00000 {
-		...
-		ports {
-			...
-			port@0 {
-				reg = <0>;
-				hdmi_in: endpoint {
-					remote-endpoint = <&mdp_dtv_out>;
-				};
-			};
-			...
-		};
-		...
-	};
-
-	...
-
-	mdp: mdp@5100000 {
-		compatible = "qcom,mdp4";
-		reg = <0x05100000 0xf0000>;
-		interrupts = <GIC_SPI 75 0>;
-		clock-names =
-		    "core_clk",
-		    "iface_clk",
-		    "lut_clk",
-		    "hdmi_clk",
-		    "tv_clk";
-		clocks =
-		    <&mmcc MDP_CLK>,
-		    <&mmcc MDP_AHB_CLK>,
-		    <&mmcc MDP_AXI_CLK>,
-		    <&mmcc MDP_LUT_CLK>,
-		    <&mmcc HDMI_TV_CLK>,
-		    <&mmcc MDP_TV_CLK>;
-
-		ports {
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-				port@0 {
-					reg = <0>;
-					mdp_lvds_out: endpoint {
-					};
-				};
-
-				port@1 {
-					reg = <1>;
-					mdp_dsi1_out: endpoint {
-					};
-				};
-
-				port@2 {
-					reg = <2>;
-					mdp_dsi2_out: endpoint {
-					};
-				};
-
-				port@3 {
-					reg = <3>;
-					mdp_dtv_out: endpoint {
-						remote-endpoint = <&hdmi_in>;
-					};
-				};
-		};
-	};
-};

Documentation/devicetree/bindings/display/msm/mdp4.yaml

+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/display/msm/mdp4.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm Adreno/Snapdragon MDP4 display controller
+
+description: >
+  MDP4 display controller found in SoCs like MSM8960, APQ8064 and MSM8660.
+
+maintainers:
+  - Rob Clark <robdclark@gmail.com>
+
+properties:
+  compatible:
+    const: qcom,mdp4
+
+  clocks:
+    minItems: 6
+    maxItems: 6
+
+  clock-names:
+    items:
+      - const: core_clk
+      - const: iface_clk
+      - const: bus_clk
+      - const: lut_clk
+      - const: hdmi_clk
+      - const: tv_clk
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  iommus:
+    maxItems: 1
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: LCDC/LVDS
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: DSI1 Cmd / Video
+
+      port@2:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: DSI2 Cmd / Video
+
+      port@3:
+        $ref: /schemas/graph.yaml#/properties/port
+        description: Digital TV
+
+  qcom,lcdc-align-lsb:
+    type: boolean
+    description: >
+      Indication that LSB alignment should be used for LCDC.
+      This is only valid for 18bpp panels.
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - ports
+
+additionalProperties: false
+
+examples:
+  - |
+    mdp: mdp@5100000 {
+        compatible = "qcom,mdp4";
+        reg = <0x05100000 0xf0000>;
+        interrupts = <0 75 0>;
+        clock-names =
+            "core_clk",
+            "iface_clk",
+            "bus_clk",
+            "lut_clk",
+            "hdmi_clk",
+            "tv_clk";
+        clocks =
+            <&mmcc 77>,
+            <&mmcc 86>,
+            <&mmcc 102>,
+            <&mmcc 75>,
+            <&mmcc 97>,
+            <&mmcc 12>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+                mdp_lvds_out: endpoint {
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                mdp_dsi1_out: endpoint {
+                };
+            };
+
+            port@2 {
+                reg = <2>;
+                mdp_dsi2_out: endpoint {
+                };
+            };
+
+            port@3 {
+                reg = <3>;
+                mdp_dtv_out: endpoint {
+                    remote-endpoint = <&hdmi_in>;
+                };
+            };
+        };
+    };