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From: Vaishnav Achath <vaishnav.a@ti.com>
To: <vigneshr@ti.com>, <nm@ti.com>, <conor+dt@kernel.org>, <kristo@kernel.org>,
        <krzysztof.kozlowski+dt@linaro.org>, <robh+dt@kernel.org>
CC: <j-luthra@ti.com>, <devicetree@vger.kernel.org>, <j-choudhary@ti.com>,
        <kernel@pengutronix.de>, <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <u-kumar1@ti.com>, <vaishnav.a@ti.com>,
        <afd@ti.com>
Subject: [PATCH v2 9/9] arm64: dts: ti: k3-j721e-sk: Add overlay for IMX219
Date: Thu, 8 Feb 2024 14:12:54 +0530
Message-ID: <20240208084254.295289-10-vaishnav.a@ti.com>
In-Reply-To: <20240208084254.295289-1-vaishnav.a@ti.com>
References: <20240208084254.295289-1-vaishnav.a@ti.com>
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RPi v2 Camera (IMX219) is an 8MP camera that can be used with SK-AM69,
J721E SK, and AM68 SK through the 22-pin CSI-RX connector.

Add a reference overlay for dual IMX219 RPI camera v2 modules
which can be used across AM68 SK, AM69 SK, TDA4VM SK boards
that have a 15/22-pin FFC connector. Also enable build testing
and symbols for all the three platforms.

Signed-off-by: Vaishnav Achath <vaishnav.a@ti.com>
---

V1->V2:
 * Rename overlays to indicate first platform (j721e-sk) supported
   and dual camera.
 * Add missed build test, fix missing newline.

 arch/arm64/boot/dts/ti/Makefile               |  13 ++
 .../dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso  | 125 ++++++++++++++++++
 2 files changed, 138 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 4a570dffb638..e019efd3ce94 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -69,6 +69,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-j721e-evm.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-j721e-evm-gesi-exp-board.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-j721e-evm-pcie0-ep.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-j721e-sk.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-j721e-sk-csi2-dual-imx219.dtbo
 
 # Boards with J721s2 SoC
 dtb-$(CONFIG_ARCH_K3) += k3-am68-sk-base-board.dtb
@@ -106,8 +107,14 @@ k3-am642-tqma64xxl-mbax4xxl-sdcard-dtbs := \
 	k3-am642-tqma64xxl-mbax4xxl.dtb k3-am64-tqma64xxl-mbax4xxl-sdcard.dtbo
 k3-am642-tqma64xxl-mbax4xxl-wlan-dtbs := \
 	k3-am642-tqma64xxl-mbax4xxl.dtb k3-am64-tqma64xxl-mbax4xxl-wlan.dtbo
+k3-am68-sk-base-board-csi2-dual-imx219-dtbs := k3-am68-sk-base-board.dtb \
+	k3-j721e-sk-csi2-dual-imx219.dtbo
+k3-am69-sk-csi2-dual-imx219-dtbs := k3-am69-sk.dtb \
+	k3-j721e-sk-csi2-dual-imx219.dtbo
 k3-j721e-evm-pcie0-ep-dtbs := k3-j721e-common-proc-board.dtb \
 	k3-j721e-evm-pcie0-ep.dtbo
+k3-j721e-sk-csi2-dual-imx219-dtbs := k3-j721e-sk.dtb \
+	k3-j721e-sk-csi2-dual-imx219.dtbo
 k3-j721s2-evm-pcie1-ep-dtbs := k3-j721s2-common-proc-board.dtb \
 	k3-j721s2-evm-pcie1-ep.dtbo
 dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
@@ -122,7 +129,10 @@ dtb- += k3-am625-beagleplay-csi2-ov5640.dtb \
 	k3-am62a7-sk-hdmi-audio.dtb \
 	k3-am642-tqma64xxl-mbax4xxl-sdcard.dtb \
 	k3-am642-tqma64xxl-mbax4xxl-wlan.dtb \
+	k3-am68-sk-base-board-csi2-dual-imx219-dtbs \
+	k3-am69-sk-csi2-dual-imx219-dtbs \
 	k3-j721e-evm-pcie0-ep.dtb \
+	k3-j721e-sk-csi2-dual-imx219-dtbs \
 	k3-j721s2-evm-pcie1-ep.dtb
 
 # Enable support for device-tree overlays
@@ -132,5 +142,8 @@ DTC_FLAGS_k3-am62-lp-sk += -@
 DTC_FLAGS_k3-am62a7-sk += -@
 DTC_FLAGS_k3-am642-tqma64xxl-mbax4xxl += -@
 DTC_FLAGS_k3-am6548-iot2050-advanced-m2 += -@
+DTC_FLAGS_k3-am68-sk-base-board += -@
+DTC_FLAGS_k3-am69-sk += -@
 DTC_FLAGS_k3-j721e-common-proc-board += -@
+DTC_FLAGS_k3-j721e-sk += -@
 DTC_FLAGS_k3-j721s2-common-proc-board += -@
diff --git a/arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso b/arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso
new file mode 100644
index 000000000000..65d7cefb6063
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/**
+ * DT Overlay for dual RPi Camera V2.1 (Sony IMX219) interfaced with CSI2
+ * on J721E SK, AM68 SK or AM69-SK board.
+ * https://datasheets.raspberrypi.org/camera/camera-v2-schematic.pdf
+ *
+ * Copyright (C) 2024 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include "k3-pinctrl.h"
+
+&{/} {
+	clk_imx219_fixed: imx219-xclk {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <24000000>;
+	};
+};
+
+&csi_mux {
+	idle-state = <1>;
+};
+
+/* CAM0 I2C */
+&cam0_i2c {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	imx219_0: imx219_0@10 {
+		compatible = "sony,imx219";
+		reg = <0x10>;
+
+		clocks = <&clk_imx219_fixed>;
+		clock-names = "xclk";
+
+		port {
+			csi2_cam0: endpoint {
+				remote-endpoint = <&csi2rx0_in_sensor>;
+				link-frequencies = /bits/ 64 <456000000>;
+				clock-lanes = <0>;
+				data-lanes = <1 2>;
+			};
+		};
+	};
+};
+
+/* CAM1 I2C */
+&cam1_i2c {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	imx219_1: imx219_1@10 {
+		compatible = "sony,imx219";
+		reg = <0x10>;
+
+		clocks = <&clk_imx219_fixed>;
+		clock-names = "xclk";
+
+		port {
+			csi2_cam1: endpoint {
+				remote-endpoint = <&csi2rx1_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>;
+			};
+		};
+	};
+};
+
+&dphy0 {
+	status = "okay";
+};
+
+&ti_csi2rx0 {
+	status = "okay";
+};
+
+&cdns_csi2rx1 {
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		csi1_port0: port@0 {
+			reg = <0>;
+			status = "okay";
+
+			csi2rx1_in_sensor: endpoint {
+				remote-endpoint = <&csi2_cam1>;
+				bus-type = <4>; /* CSI2 DPHY. */
+				clock-lanes = <0>;
+				data-lanes = <1 2>;
+			};
+		};
+	};
+};
+
+&dphy1 {
+	status = "okay";
+};
+
+&ti_csi2rx1 {
+	status = "okay";
+};
-- 
2.34.1