arm64: dts: ti: k3-am62x: Add overlay for IMX219

RPi v2 Camera (IMX219) is an 8MP camera that can be used with SK-AM62A
through the 22-pin CSI-RX connector.

Same overlay can be used across SK-AM62* boards that have a 15/22-pin
FFC connector, so we name it with the k3-am62x- prefix.

Signed-off-by: Jai Luthra <j-luthra@ti.com>
Link: https://lore.kernel.org/r/20231201-csi_dts-v3-8-9f06f31080fe@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>

arch/arm64/boot/dts/ti/Makefile

@@ -35,6 +35,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62p5-sk.dtb
 # Common overlays for SK-AM62* family of boards
 dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-csi2-ov5640.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-csi2-tevi-ov5640.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am62x-sk-csi2-imx219.dtbo
 
 # Boards with AM64x SoC
 dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
@@ -91,18 +92,24 @@ k3-am625-beagleplay-csi2-ov5640-dtbs := k3-am625-beagleplay.dtb \
 	k3-am625-beagleplay-csi2-ov5640.dtbo
 k3-am625-beagleplay-csi2-tevi-ov5640-dtbs := k3-am625-beagleplay.dtb \
 	k3-am625-beagleplay-csi2-tevi-ov5640.dtbo
+k3-am625-sk-csi2-imx219-dtbs := k3-am625-sk.dtb \
+	k3-am62x-sk-csi2-imx219.dtbo
 k3-am625-sk-csi2-ov5640-dtbs := k3-am625-sk.dtb \
 	k3-am62x-sk-csi2-ov5640.dtbo
 k3-am625-sk-csi2-tevi-ov5640-dtbs := k3-am625-sk.dtb \
 	k3-am62x-sk-csi2-tevi-ov5640.dtbo
+k3-am62a7-sk-csi2-imx219-dtbs := k3-am62a7-sk.dtb \
+	k3-am62x-sk-csi2-imx219.dtbo
 k3-am62a7-sk-csi2-ov5640-dtbs := k3-am62a7-sk.dtb \
 	k3-am62x-sk-csi2-ov5640.dtbo
 k3-am62a7-sk-csi2-tevi-ov5640-dtbs := k3-am62a7-sk.dtb \
 	k3-am62x-sk-csi2-tevi-ov5640.dtbo
 dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
 	k3-am625-beagleplay-csi2-tevi-ov5640.dtb \
+	k3-am625-sk-csi2-imx219.dtb \
 	k3-am625-sk-csi2-ov5640.dtb \
 	k3-am625-sk-csi2-tevi-ov5640.dtb \
+	k3-am62a7-sk-csi2-imx219.dtb \
 	k3-am62a7-sk-csi2-ov5640.dtb \
 	k3-am62a7-sk-csi2-tevi-ov5640.dtb
 

arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso

@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * IMX219 (RPi v2) Camera Module
+ * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+
+&{/} {
+	clk_imx219_fixed: imx219-xclk {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24000000>;
+	};
+};
+
+&main_i2c2 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	i2c-switch@71 {
+		compatible = "nxp,pca9543";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x71>;
+
+		/* CAM port */
+		i2c@1 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <1>;
+
+			ov5640: camera@10 {
+				compatible = "sony,imx219";
+				reg = <0x10>;
+
+				clocks = <&clk_imx219_fixed>;
+				clock-names = "xclk";
+
+				reset-gpios = <&exp1 13 GPIO_ACTIVE_HIGH>;
+
+				port {
+					csi2_cam0: endpoint {
+						remote-endpoint = <&csi2rx0_in_sensor>;
+						link-frequencies = /bits/ 64 <456000000>;
+						clock-lanes = <0>;
+						data-lanes = <1 2>;
+					};
+				};
+			};
+		};
+	};
+};
+
+&cdns_csi2rx0 {
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		csi0_port0: port@0 {
+			reg = <0>;
+			status = "okay";
+
+			csi2rx0_in_sensor: endpoint {
+				remote-endpoint = <&csi2_cam0>;
+				bus-type = <4>; /* CSI2 DPHY. */
+				clock-lanes = <0>;
+				data-lanes = <1 2>;
+			};
+		};
+	};
+};
+
+&ti_csi2rx0 {
+	status = "okay";
+};
+
+&dphy0 {
+	status = "okay";
+};