[PATCH v4 5/7] dt-bindings: display: rockchip: dw-hdmi: Convert binding to YAML

@@ -1,74 +0,0 @@
-Rockchip DWC HDMI TX Encoder
-============================
-
-The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP
-with a companion PHY IP.
-
-These DT bindings follow the Synopsys DWC HDMI TX bindings defined in
-Documentation/devicetree/bindings/display/bridge/dw_hdmi.txt with the
-following device-specific properties.
-
-
-Required properties:
-
-- compatible: should be one of the following:
-		"rockchip,rk3228-dw-hdmi"
-		"rockchip,rk3288-dw-hdmi"
-		"rockchip,rk3328-dw-hdmi"
-		"rockchip,rk3399-dw-hdmi"
-- reg: See dw_hdmi.txt.
-- reg-io-width: See dw_hdmi.txt. Shall be 4.
-- interrupts: HDMI interrupt number
-- clocks: See dw_hdmi.txt.
-- clock-names: Shall contain "iahb" and "isfr" as defined in dw_hdmi.txt.
-- ports: See dw_hdmi.txt. The DWC HDMI shall have a single port numbered 0
-  corresponding to the video input of the controller. The port shall have two
-  endpoints, numbered 0 and 1, connected respectively to the vopb and vopl.
-- rockchip,grf: Shall reference the GRF to mux vopl/vopb.
-
-Optional properties
-
-- ddc-i2c-bus: The HDMI DDC bus can be connected to either a system I2C master
-  or the functionally-reduced I2C master contained in the DWC HDMI. When
-  connected to a system I2C master this property contains a phandle to that
-  I2C master controller.
-- clock-names: See dw_hdmi.txt. The "cec" clock is optional.
-- clock-names: May contain "cec" as defined in dw_hdmi.txt.
-- clock-names: May contain "grf", power for grf io.
-- clock-names: May contain "vpll", external clock for some hdmi phy.
-- phys: from general PHY binding: the phandle for the PHY device.
-- phy-names: Should be "hdmi" if phys references an external phy.
-
-Optional pinctrl entry:
-- If you have both a "unwedge" and "default" pinctrl entry, dw_hdmi
-  will switch to the unwedge pinctrl state for 10ms if it ever gets an
-  i2c timeout.  It's intended that this unwedge pinctrl entry will
-  cause the SDA line to be driven low to work around a hardware
-  errata.
-
-Example:
-
-hdmi: hdmi@ff980000 {
-	compatible = "rockchip,rk3288-dw-hdmi";
-	reg = <0xff980000 0x20000>;
-	reg-io-width = <4>;
-	ddc-i2c-bus = <&i2c5>;
-	rockchip,grf = <&grf>;
-	interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
-	clocks = <&cru  PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_HDCP>;
-	clock-names = "iahb", "isfr";
-	ports {
-		hdmi_in: port {
-			#address-cells = <1>;
-			#size-cells = <0>;
-			hdmi_in_vopb: endpoint@0 {
-				reg = <0>;
-				remote-endpoint = <&vopb_out_hdmi>;
-			};
-			hdmi_in_vopl: endpoint@1 {
-				reg = <1>;
-				remote-endpoint = <&vopl_out_hdmi>;
-			};
-		};
-	};
-};

@@ -0,0 +1,156 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/rockchip/rockchip,dw-hdmi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip DWC HDMI TX Encoder
+
+maintainers:
+  - Mark Yao <markyao0591@gmail.com>
+
+description: |
+  The HDMI transmitter is a Synopsys DesignWare HDMI 1.4 TX controller IP
+  with a companion PHY IP.
+
+allOf:
+  - $ref: ../bridge/synopsys,dw-hdmi.yaml#
+
+properties:
+  compatible:
+    enum:
+      - rockchip,rk3228-dw-hdmi
+      - rockchip,rk3288-dw-hdmi
+      - rockchip,rk3328-dw-hdmi
+      - rockchip,rk3399-dw-hdmi
+
+  reg-io-width:
+    const: 4
+
+  clocks:
+    minItems: 2
+    maxItems: 5
+    items:
+      - {}
+      - {}
+      # The next three clocks are all optional, but shall be specified in this
+      # order when present.
+      - description: The HDMI CEC controller main clock
+      - description: Power for GRF IO
+      - description: External clock for some HDMI PHY
+
+  clock-names:
+    minItems: 2
+    maxItems: 5
+    items:
+      - {}
+      - {}
+      - enum:
+          - cec
+          - grf
+          - vpll
+      - enum:
+          - grf
+          - vpll
+      - const: vpll
+
+  ddc-i2c-bus:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      The HDMI DDC bus can be connected to either a system I2C master or the
+      functionally-reduced I2C master contained in the DWC HDMI. When connected
+      to a system I2C master this property contains a phandle to that I2C
+      master controller.
+
+  phys:
+    maxItems: 1
+    description: The HDMI PHY
+
+  phy-names:
+    const: hdmi
+
+  pinctrl-names:
+    description:
+      The unwedge pinctrl entry shall drive the DDC SDA line low. This is
+      intended to work around a hardware errata that can cause the DDC I2C
+      bus to be wedged.
+    items:
+      - const: default
+      - const: unwedge
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+
+    properties:
+      port:
+        $ref: /schemas/graph.yaml#/$defs/port-base
+        unevaluatedProperties: false
+        description: Input of the DWC HDMI TX
+
+        properties:
+          endpoint@0:
+            $ref: /schemas/graph.yaml#/properties/endpoint
+            description: Connection to the VOPB
+
+          endpoint@1:
+            $ref: /schemas/graph.yaml#/properties/endpoint
+            description: Connection to the VOPL
+
+        required:
+          - endpoint@0
+          - endpoint@1
+
+    required:
+      - port
+
+  rockchip,grf:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      phandle to the GRF to mux vopl/vopb.
+
+required:
+  - compatible
+  - reg
+  - reg-io-width
+  - clocks
+  - clock-names
+  - interrupts
+  - ports
+  - rockchip,grf
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rk3288-cru.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    hdmi: hdmi@ff980000 {
+        compatible = "rockchip,rk3288-dw-hdmi";
+        reg = <0xff980000 0x20000>;
+        reg-io-width = <4>;
+        ddc-i2c-bus = <&i2c5>;
+        rockchip,grf = <&grf>;
+        interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&cru  PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_HDCP>;
+        clock-names = "iahb", "isfr";
+
+        ports {
+            port {
+                #address-cells = <1>;
+                #size-cells = <0>;
+
+                hdmi_in_vopb: endpoint@0 {
+                    reg = <0>;
+                    remote-endpoint = <&vopb_out_hdmi>;
+                };
+                hdmi_in_vopl: endpoint@1 {
+                    reg = <1>;
+                    remote-endpoint = <&vopl_out_hdmi>;
+                };
+            };
+        };
+    };
+
+...