dtoverlays: Add overlay for the Sony IMX283 Camera

This supports the OneInchEye with a 24MHz crystal INCK.

Use the option 'cam0' to connect this to the CAM/DISP 0 port on
Raspberry Pi 5.

Use the clock-frequency=<value> option if you have a camera module with
a different inclk frequency:

For example:
  dtoverlay=imx283,cam0,clock-frequency=12000000

Signed-off-by: Kieran Bingham <[email protected]>

Author: kbingham

arch/arm/boot/dts/overlays/Makefile

@@ -134,6 +134,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
 	ilitek251x.dtbo \
 	imx219.dtbo \
 	imx258.dtbo \
+	imx283.dtbo \
 	imx290.dtbo \
 	imx296.dtbo \
 	imx327.dtbo \

arch/arm/boot/dts/overlays/README

@@ -2778,6 +2778,29 @@ Params: rotation                Mounting rotation of the camera sensor (0 or
                                 Module (1, 3, 4, or 5) or Pi 5.
 
 
+Name:   imx283
+Info:   Sony IMX283 camera module.
+        Uses Unicam 1, which is the standard camera connector on most Pi
+        variants. This sensor only supports 4 lane operation and therefore
+        requires a Compute Module (1, 3, 4, or 5) or Pi 5.
+Load:   dtoverlay=imx283,<param>=<val>
+Params: rotation                Mounting rotation of the camera sensor (0 or
+                                180, default 180)
+        orientation             Sensor orientation (0 = front, 1 = rear,
+                                2 = external, default external)
+        clock-frequency         Sets the clock frequency to match that used on
+                                the board.
+                                Known tested values include 24MHz (the default)
+                                and 12MHz.
+        link-frequency          Allowable link frequency values to use in Hz:
+                                720000000 (default), 360000000.
+        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 or Pi5 (CSI0, i2c_vc, and
+                                cam0_reg).
+
+
 Name:   imx290
 Info:   Sony IMX290 camera module.
         Uses Unicam 1, which is the standard camera connector on most Pi

arch/arm/boot/dts/overlays/imx283-overlay.dts

@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// Definitions for IMX283 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>;
+		cam_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 = <200000>;
+			off-on-delay-us = <30000>;
+			regulator-min-microvolt = <2900000>;
+			regulator-max-microvolt = <2900000>;
+		};
+	};
+
+	i2c_frag: fragment@100 {
+		target = <&i2c_csi_dsi>;
+		__overlay__ {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "okay";
+
+			#include "imx283.dtsi"
+		};
+	};
+
+	csi_frag: fragment@101 {
+		target = <&csi1>;
+		csi: __overlay__ {
+			status = "okay";
+			brcm,media-controller;
+
+			port {
+				csi_ep: endpoint {
+					remote-endpoint = <&cam_endpoint>;
+					clock-lanes = <0>;
+					data-lanes = <1 2 3 4>;
+					clock-noncontinuous;
+				};
+			};
+		};
+	};
+
+	__overrides__ {
+		clock-frequency = <&cam_clk>,"clock-frequency:0";
+		rotation = <&cam_node>,"rotation:0";
+		orientation = <&cam_node>,"orientation:0";
+		media-controller = <&csi>,"brcm,media-controller?";
+		cam0 = <&i2c_frag>, "target:0=",<&i2c_csi_dsi0>,
+		       <&csi_frag>, "target:0=",<&csi0>,
+		       <&clk_frag>, "target:0=",<&cam0_clk>,
+		       <&reg_frag>, "target:0=",<&cam0_reg>,
+		       <&cam_node>, "clocks:0=",<&cam0_clk>,
+		       <&cam_node>, "vadd-supply:0=",<&cam0_reg>;
+		link-frequency = <&cam_endpoint>,"link-frequencies#0";
+	};
+};
+
+&cam_node {
+	status = "okay";
+};
+
+&cam_endpoint {
+	remote-endpoint = <&csi_ep>;
+};

arch/arm/boot/dts/overlays/imx283.dtsi

@@ -0,0 +1,26 @@
+// Fragment that configures a Sony IMX283
+
+cam_node: imx283@1a {
+	compatible = "sony,imx283";
+	reg = <0x1a>;
+	status = "disabled";
+
+	clocks = <&cam1_clk>;
+	clock-names = "xclk";
+
+	vadd-supply = <&cam1_reg>;	/* Analog power supply (2.9v) */
+	vdd1-supply = <&cam_dummy_reg>;	/* Interface power supply (1.8V) */
+	vdd2-supply = <&cam_dummy_reg>;	/* Digital power supply (1.2V) */
+
+	rotation = <180>;
+	orientation = <2>;
+
+	port {
+		cam_endpoint: endpoint {
+			clock-lanes = <0>;
+			data-lanes = <1 2 3 4>;
+			clock-noncontinuous;
+			link-frequencies = /bits/ 64 <720000000>;
+		};
+	};
+};