dt-bindings: display: samsung,exynos5433-mic: convert to dtschema

Convert the Exynos5433 MIC bindings to DT schema format.

The conversion includes also updates to the bindings, matching the
current DTS and Linux driver: adding optional power-domains.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220208171823.226211-10-krzysztof.kozlowski@canonical.com

Documentation/devicetree/bindings/display/exynos/exynos-mic.txt

-Device-Tree bindings for Samsung Exynos SoC mobile image compressor (MIC)
-
-MIC (mobile image compressor) resides between decon and mipi dsi. Mipi dsi is
-not capable to transfer high resoltuion frame data as decon can send. MIC
-solves this problem by compressing the frame data by 1/2 before it is
-transferred through mipi dsi. The compressed frame data must be uncompressed in
-the panel PCB.
-
-Required properties:
-- compatible: value should be "samsung,exynos5433-mic".
-- reg: physical base address and length of the MIC registers set and system
-       register of mic.
-- clocks: must include clock specifiers corresponding to entries in the
-	  clock-names property.
-- clock-names: list of clock names sorted in the same order as the clocks
-	       property. Must contain "pclk_mic0", "sclk_rgb_vclk_to_mic0".
-- samsung,disp-syscon: the reference node for syscon for DISP block.
-- ports: contains a port which is connected to decon node and dsi node.
-	 address-cells and size-cells must 1 and 0, respectively.
-- port: contains an endpoint node which is connected to the endpoint in the
-	decon node or dsi node. The reg value must be 0 and 1 respectively.
-
-Example:
-SoC specific DT entry:
-mic: mic@13930000 {
-	compatible = "samsung,exynos5433-mic";
-	reg = <0x13930000 0x48>;
-	clocks = <&cmu_disp CLK_PCLK_MIC0>,
-	       <&cmu_disp CLK_SCLK_RGB_VCLK_TO_MIC0>;
-	clock-names = "pclk_mic0", "sclk_rgb_vclk_to_mic0";
-	samsung,disp-syscon = <&syscon_disp>;
-
-	ports {
-		#address-cells = <1>;
-		#size-cells = <0>;
-
-		port@0 {
-			reg = <0>;
-			mic_to_decon: endpoint {
-				remote-endpoint = <&decon_to_mic>;
-			};
-		};
-
-		port@1 {
-			reg = <1>;
-			mic_to_dsi: endpoint {
-				remote-endpoint = <&dsi_to_mic>;
-			};
-		};
-	};
-};

Documentation/devicetree/bindings/display/samsung/samsung,exynos5433-mic.yaml

+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/samsung/samsung,exynos5433-mic.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Samsung Exynos5433 SoC Mobile Image Compressor (MIC)
+
+maintainers:
+  - Inki Dae <inki.dae@samsung.com>
+  - Joonyoung Shim <jy0922.shim@samsung.com>
+  - Seung-Woo Kim <sw0312.kim@samsung.com>
+  - Kyungmin Park <kyungmin.park@samsung.com>
+  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+
+description: |
+  MIC (Mobile Image Compressor) resides between DECON and MIPI DSI. MIPI DSI is
+  not capable of transferring high resoltuion frame data as DECON can send. MIC
+  solves this problem by compressing the frame data by 1/2 before it is
+  transferred through MIPI DSI. The compressed frame data must be uncompressed
+  in the panel PCB.
+
+properties:
+  compatible:
+    const: samsung,exynos5433-mic
+
+  clocks:
+    minItems: 2
+    maxItems: 2
+
+  clock-names:
+    items:
+      - const: pclk_mic0
+      - const: sclk_rgb_vclk_to_mic0
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    description:
+      Contains a port which is connected to mic node.
+
+  power-domains:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+  samsung,disp-syscon:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      Phandle to DISP system controller interface.
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+  - ports
+  - reg
+  - samsung,disp-syscon
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/exynos5433.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    image-processor@13930000 {
+        compatible = "samsung,exynos5433-mic";
+        reg = <0x13930000 0x48>;
+        clocks = <&cmu_disp CLK_PCLK_MIC0>,
+                 <&cmu_disp CLK_SCLK_RGB_VCLK_TO_MIC0>;
+        clock-names = "pclk_mic0",
+                      "sclk_rgb_vclk_to_mic0";
+        power-domains = <&pd_disp>;
+        samsung,disp-syscon = <&syscon_disp>;
+
+        ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            port@0 {
+                reg = <0>;
+                mic_to_decon: endpoint {
+                    remote-endpoint = <&decon_to_mic>;
+                };
+            };
+
+            port@1 {
+                reg = <1>;
+                mic_to_dsi: endpoint {
+                    remote-endpoint = <&dsi_to_mic>;
+                };
+            };
+        };
+    };