linux-kernel - [PATCH 8/8] arm64: dts: ti: k3-am62x: Add overlay for IMX219

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Message-ID: <20231115-csi_dts-v1-8-99fc535b2bde@ti.com>
Date:   Wed, 15 Nov 2023 15:21:16 +0530
From:   Jai Luthra <j-luthra@...com>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        Aradhya Bhatia <a-bhatia1@...com>,
        Devarsh Thakkar <devarsht@...com>,
        Vaishnav Achath <vaishnav.a@...com>,
        Julien Massot <julien.massot@...labora.com>,
        Martyn Welch <martyn.welch@...labora.com>,
        Jai Luthra <j-luthra@...com>
Subject: [PATCH 8/8] 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@...com>
---
 arch/arm64/boot/dts/ti/Makefile                    |  4 ++
 .../arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso | 76 ++++++++++++++++++++++
 2 files changed, 80 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index a09b16cbefb4..f89dcbe3c635 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -37,7 +37,10 @@ dtb-$(CONFIG_ARCH_K3) += k3-am625-sk-hdmi-audio.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am62-lp-sk-hdmi-audio.dtb
 
 # Boards with AM62Ax SoC
+k3-am62a7-sk-csi2-imx219-dtbs := k3-am62a7-sk.dtb \
+	k3-am62x-sk-csi2-imx219.dtbo
 dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk.dtb
+dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk-csi2-imx219.dtb
 
 # Boards with AM62Px SoC
 dtb-$(CONFIG_ARCH_K3) += k3-am62p5-sk.dtb
@@ -96,6 +99,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-j784s4-evm.dtb
 DTC_FLAGS_k3-am625-beagleplay += -@
 DTC_FLAGS_k3-am625-sk += -@
 DTC_FLAGS_k3-am62-lp-sk += -@
+DTC_FLAGS_k3-am62a7-sk += -@
 DTC_FLAGS_k3-am6548-iot2050-advanced-m2 += -@
 DTC_FLAGS_k3-j721e-common-proc-board += -@
 DTC_FLAGS_k3-j721s2-common-proc-board += -@
diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
new file mode 100644
index 000000000000..84d08bfda469
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-csi2-imx219.dtso
@@ -0,0 +1,76 @@
+// 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>;
+			};
+		};
+	};
+};

-- 
2.42.1