dtoverlays: Add overlay for IMX662

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>

Author: 6by9

arch/arm/boot/dts/overlays/Makefile

@@ -149,6 +149,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	imx500.dtbo \
 	imx500-pi5.dtbo \
 	imx519.dtbo \
+	imx662.dtbo \
 	imx708.dtbo \
 	interludeaudio-analog.dtbo \
 	interludeaudio-digital.dtbo \

arch/arm/boot/dts/overlays/README

@@ -3114,6 +3114,34 @@ Params: rotation                Mounting rotation of the camera sensor (0 or
                                 but vcm=off will disable.
 
 
+Name:   imx662
+Info:   Sony IMX662 camera module.
+        Uses Unicam 1, which is the standard camera connector on most Pi
+        variants.
+Load:   dtoverlay=imx662,<param>
+Params: 4lane                   Enable 4 CSI2 lanes. This requires a Compute
+                                Module (1, 3, 4, or 5) or Pi 5.
+        clock-frequency         Sets the clock frequency to match that used on
+                                the board. Default 24MHz
+        mono                    Denote that the module is a mono sensor.
+        orientation             Sensor orientation (0 = front, 1 = rear,
+                                2 = external, default external)
+        rotation                Mounting rotation of the camera sensor (0 or
+                                180, default 0)
+        media-controller        Configure use of Media Controller API for
+                                configuring the sensor (default on)
+        cam0                    Adopt the default configuration for CAM0 on a
+                                Compute Module (CSI0, i2c_vc, and cam0_reg).
+        vcm                     Enable a VCM focus drive on the sensor.
+        link-frequency          Link frequency to use in Hz. Valid values of
+                                297000000, 360000000, 445500000,
+                                594000000 (default), 720000000, 891000000,
+                                1039500000, and 1188000000.
+                                Values above 594000000 are unlikely to work on
+                                Pi0-4, and above 720000000 are not guaranteed to
+                                work on Pi5.
+
+
 Name:   imx708
 Info:   Sony IMX708 camera module.
         Uses Unicam 1, which is the standard camera connector on most Pi

arch/arm/boot/dts/overlays/imx662-overlay.dts

@@ -0,0 +1,121 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Definitions for IMX662 camera module on VC I2C bus
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+/{
+	compatible = "brcm,bcm2835";
+
+	fragment@0 {
+		target = <&i2c0if>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	clk_frag: fragment@1 {
+		target = <&cam1_clk>;
+		clk: __overlay__ {
+			status = "okay";
+			clock-frequency = <24000000>;
+		};
+	};
+
+	fragment@2 {
+		target = <&i2c0mux>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	reg_frag: fragment@3 {
+		target = <&cam1_reg>;
+		cam_reg: __overlay__ {
+			startup-delay-us = <300000>;
+		};
+	};
+
+	i2c_frag: fragment@100 {
+		target = <&i2c_csi_dsi>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			#include "imx662.dtsi"
+
+			vcm: ad5398@c {
+				compatible = "adi,ad5398";
+				reg = <0x0c>;
+				status = "disabled";
+				VANA-supply = <&cam1_reg>;
+			};
+		};
+	};
+
+	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";
+		};
+	};
+
+	fragment@201 {
+		target = <&csi_ep>;
+		__dormant__ {
+			data-lanes = <1 2 3 4>;
+		};
+	};
+
+	fragment@202 {
+		target = <&cam_endpoint>;
+		__dormant__ {
+			data-lanes = <1 2 3 4>;
+		};
+	};
+
+	__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>,
+		       <&reg_frag>, "target:0=",<&cam0_reg>,
+		       <&cam_node>, "VANA-supply:0=",<&cam0_reg>,
+		       <&vcm>, "VANA-supply:0=", <&cam0_reg>;
+		vcm = <&vcm>, "status=okay",
+		      <&cam_node>,"lens-focus:0=", <&vcm>;
+		4lane = <0>, "+201+202";
+		clock-frequency = <&clk>,"clock-frequency:0";
+		link-frequency = <&cam_endpoint>,"link-frequencies#0";
+		mono = <&cam_node>,"compatible=sony,imx662aamr";
+	};
+};
+
+&cam_node {
+	status = "okay";
+};
+
+&cam_endpoint {
+	remote-endpoint = <&csi_ep>;
+};

arch/arm/boot/dts/overlays/imx662.dtsi

@@ -0,0 +1,26 @@
+// Fragment that configures an imx662
+
+cam_node: imx662@1a {
+	compatible = "sony,imx662aaqr";
+	reg = <0x1a>;
+	status = "disabled";
+
+	clocks = <&cam1_clk>;
+
+	avdd-supply = <&cam1_reg>;	/* 2.8v */
+	dvdd-supply = <&cam_dummy_reg>;	/* 1.8v */
+	ovdd-supply = <&cam_dummy_reg>;/* 1.2v */
+
+	rotation = <180>;
+	orientation = <2>;
+
+	port {
+		cam_endpoint: endpoint {
+			clock-lanes = <0>;
+			data-lanes = <1 2>;
+			clock-noncontinuous;
+			link-frequencies =
+				/bits/ 64 <594000000>;
+		};
+	};
+};