dts: rpi: Factorize common definitions vd16gz_vd56g3_vd66gy-overlay.dtsi

Now on part with rpi overlay definition for easier maintainance.
See raspberrypi/linux#7189

All common code is factorized in vd16gz_vd56g3_vd66gy-overlay.dtsi.
Every pcb overlay includes vd16gz_vd56g3_vd66gy-overlay.dtsi, adds its
corresponding compatible, and optionnaly adds extra required properties.

Contrary to rpi kernel, the C preprocessor '#include' instruction has
been replaced by '/include/' dtc instruction to avoid running gcc,
allowing to build overlays outside of the Linux kernel environnement
in a standalone way.

Signed-off-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>

Author: bemug-st

dts/rpi/pcb1637_vd56g3.dts

@@ -1,108 +1,22 @@
 // SPDX-License-Identifier: GPL-2.0-only
+// Definitions for VD56G3 camera module on VC I2C bus
+
 /dts-v1/;
 /plugin/;
 
+/include/ "vd16gz_vd56g3_vd66gy-overlay.dtsi"
+
 /{
 	compatible = "brcm,bcm2835";
 
-	fragment@0 {
-		target = <&i2c0if>;
-		__overlay__ {
-			status = "okay";
-		};
-	};
-
-	clk_frag: fragment@1 {
-		target = <&cam1_clk>;
-		__overlay__ {
-			status = "okay";
-			clock-frequency = <12000000>;
-		};
-	};
-
-	fragment@2 {
-		target = <&i2c0mux>;
-		__overlay__ {
-			status = "okay";
-		};
-	};
+	// Fragment numbers deliberately high to avoid conflicts with the
+	// included vd16gz_vd56g3_vd66gy overlay file.
 
-	i2c_frag: fragment@100 {
-		target = <&i2c_csi_dsi>;
+	fragment@101 {
+		target = <&cam_node>;
 		__overlay__ {
-			#address-cells = <1>;
-			#size-cells = <0>;
-			status = "okay";
-
-			cam_node: vd56g3@10 {
-				compatible = "st,vd56g3";
-				reg = <0x10>;
-				status = "disabled";
-
-				clocks = <&cam1_clk>;
-				clock-names = "xclk";
-
-				vana-supply = <&cam1_reg>;	/* 2.8v */
-				vddio-supply = <&cam_dummy_reg>;	/* 1.8v */
-				vcore-supply = <&cam_dummy_reg>;	/* 1.2v */
-
-				rotation = <0>;
-				orientation = <2>;
-
-				st,leds = <6>;
-
-				port {
-					cam_endpoint: endpoint {
-						clock-lanes = <0>;
-						data-lanes = <1 2>;
-						clock-noncontinuous;
-						link-frequencies =
-							/bits/ 64 <402000000>;
-					};
-				};
-			};
-		};
-	};
-
-	csi_frag: fragment@101 {
-		target = <&csi1>;
-		csi: __overlay__ {
-			status = "okay";
-
-			port {
-				csi_ep: endpoint {
-					remote-endpoint = <&cam_endpoint>;
-					clock-lanes = <0>;
-					data-lanes = <1 2>;
-					clock-noncontinuous;
-				};
-			};
-		};
-	};
-
-	fragment@102 {
-		target = <&csi1>;
-		__dormant__ {
-			compatible = "brcm,bcm2835-unicam-legacy";
+			compatible = "st,vd56g3";
+			st,leds = <6>;
 		};
 	};
-
-	__overrides__ {
-		rotation = <&cam_node>,"rotation:0";
-		orientation = <&cam_node>,"orientation:0";
-		media-controller = <0>,"!102";
-		cam0 = <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>,
-		       <&csi_frag>, "target:0=",<&csi0>,
-		       <&clk_frag>, "target:0=",<&cam0_clk>,
-		       <&cam_node>, "clocks:0=",<&cam0_clk>,
-		       <&cam_node>, "vana-supply:0=",<&cam0_reg>;
-	};
-};
-
-&cam_node {
-	status = "okay";
-};
-
-&cam_endpoint {
-	remote-endpoint = <&csi_ep>;
 };

dts/rpi/pcb1637_vd66gy.dts

@@ -1,108 +1,22 @@
 // SPDX-License-Identifier: GPL-2.0-only
+// Definitions for VD66GY camera module on VC I2C bus
+
 /dts-v1/;
 /plugin/;
 
+/include/ "vd16gz_vd56g3_vd66gy-overlay.dtsi"
+
 /{
 	compatible = "brcm,bcm2835";
 
-	fragment@0 {
-		target = <&i2c0if>;
-		__overlay__ {
-			status = "okay";
-		};
-	};
-
-	clk_frag: fragment@1 {
-		target = <&cam1_clk>;
-		__overlay__ {
-			status = "okay";
-			clock-frequency = <12000000>;
-		};
-	};
-
-	fragment@2 {
-		target = <&i2c0mux>;
-		__overlay__ {
-			status = "okay";
-		};
-	};
+	// Fragment numbers deliberately high to avoid conflicts with the
+	// included vd16gz_vd56g3_vd66gy overlay file.
 
-	i2c_frag: fragment@100 {
-		target = <&i2c_csi_dsi>;
+	fragment@101 {
+		target = <&cam_node>;
 		__overlay__ {
-			#address-cells = <1>;
-			#size-cells = <0>;
-			status = "okay";
-
-			cam_node: vd66gy@10 {
-				compatible = "st,vd66gy";
-				reg = <0x10>;
-				status = "disabled";
-
-				clocks = <&cam1_clk>;
-				clock-names = "xclk";
-
-				vana-supply = <&cam1_reg>;	/* 2.8v */
-				vddio-supply = <&cam_dummy_reg>;	/* 1.8v */
-				vcore-supply = <&cam_dummy_reg>;	/* 1.2v */
-
-				rotation = <0>;
-				orientation = <2>;
-
-				st,leds = <6>;
-
-				port {
-					cam_endpoint: endpoint {
-						clock-lanes = <0>;
-						data-lanes = <1 2>;
-						clock-noncontinuous;
-						link-frequencies =
-							/bits/ 64 <402000000>;
-					};
-				};
-			};
-		};
-	};
-
-	csi_frag: fragment@101 {
-		target = <&csi1>;
-		csi: __overlay__ {
-			status = "okay";
-
-			port {
-				csi_ep: endpoint {
-					remote-endpoint = <&cam_endpoint>;
-					clock-lanes = <0>;
-					data-lanes = <1 2>;
-					clock-noncontinuous;
-				};
-			};
-		};
-	};
-
-	fragment@102 {
-		target = <&csi1>;
-		__dormant__ {
-			compatible = "brcm,bcm2835-unicam-legacy";
+			compatible = "st,vd66gy";
+			st,leds = <6>;
 		};
 	};
-
-	__overrides__ {
-		rotation = <&cam_node>,"rotation:0";
-		orientation = <&cam_node>,"orientation:0";
-		media-controller = <0>,"!102";
-		cam0 = <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>,
-		       <&csi_frag>, "target:0=",<&csi0>,
-		       <&clk_frag>, "target:0=",<&cam0_clk>,
-		       <&cam_node>, "clocks:0=",<&cam0_clk>,
-		       <&cam_node>, "vana-supply:0=",<&cam0_reg>;
-	};
-};
-
-&cam_node {
-	status = "okay";
-};
-
-&cam_endpoint {
-	remote-endpoint = <&csi_ep>;
 };

dts/rpi/pcb4188_vd16gz.dts

@@ -1,107 +1,28 @@
 // SPDX-License-Identifier: GPL-2.0-only
+// Definitions for VD56G3 camera module on VC I2C bus
+
 /dts-v1/;
 /plugin/;
 
+/include/ "vd16gz_vd56g3_vd66gy-overlay.dtsi"
+
 /{
 	compatible = "brcm,bcm2835";
 
-	fragment@0 {
-		target = <&i2c0if>;
-		__overlay__ {
-			status = "okay";
-		};
-	};
+	// Fragment numbers deliberately high to avoid conflicts with the
+	// included vd16gz_vd56g3_vd66gy overlay file.
 
-	clk_frag: fragment@1 {
-		target = <&cam1_clk>;
+	fragment@101 {
+		target = <&cam_node>;
 		__overlay__ {
-			status = "okay";
-			clock-frequency = <12000000>;
-		};
-	};
-
-	fragment@2 {
-		target = <&i2c0mux>;
-		__overlay__ {
-			status = "okay";
-		};
-	};
-
-	i2c_frag: fragment@100 {
-		target = <&i2c_csi_dsi>;
-		__overlay__ {
-			#address-cells = <1>;
-			#size-cells = <0>;
-			status = "okay";
-
-			cam_node: vd16gz@10 {
-				compatible = "st,vd16gz";
-				reg = <0x10>;
-				status = "disabled";
-
-				clocks = <&cam1_clk>;
-				clock-names = "xclk";
-
-				vana-supply = <&cam1_reg>;	/* 2.8v */
-				vddio-supply = <&cam_dummy_reg>;	/* 1.8v */
-				vcore-supply = <&cam_dummy_reg>;	/* 1.2v */
-
-				rotation = <0>;
-				orientation = <2>;
-
-				port {
-					cam_endpoint: endpoint {
-						clock-lanes = <0>;
-						data-lanes = <1 2>;
-						clock-noncontinuous;
-						link-frequencies =
-							/bits/ 64 <402000000>;
-						lane-polarities = <1 1 1>;
-					};
-				};
-			};
-		};
-	};
-
-	csi_frag: fragment@101 {
-		target = <&csi1>;
-		csi: __overlay__ {
-			status = "okay";
-
-			port {
-				csi_ep: endpoint {
-					remote-endpoint = <&cam_endpoint>;
-					clock-lanes = <0>;
-					data-lanes = <1 2>;
-					clock-noncontinuous;
-				};
-			};
+			compatible = "st,vd16gz";
 		};
 	};
 
 	fragment@102 {
-		target = <&csi1>;
-		__dormant__ {
-			compatible = "brcm,bcm2835-unicam-legacy";
+		target = <&cam_endpoint>;
+		__overlay__ {
+			lane-polarities = <1 1 1>;
 		};
 	};
-
-	__overrides__ {
-		rotation = <&cam_node>,"rotation:0";
-		orientation = <&cam_node>,"orientation:0";
-		media-controller = <0>,"!102";
-		cam0 = <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>,
-		       <&csi_frag>, "target:0=",<&csi0>,
-		       <&clk_frag>, "target:0=",<&cam0_clk>,
-		       <&cam_node>, "clocks:0=",<&cam0_clk>,
-		       <&cam_node>, "vana-supply:0=",<&cam0_reg>;
-	};
-};
-
-&cam_node {
-	status = "okay";
-};
-
-&cam_endpoint {
-	remote-endpoint = <&csi_ep>;
 };