[PATCH v4 9/9] arm64: dts: ti: k3-j721e-sk: Add overlay for IMX219

From: Vaishnav Achath
Date: Thu Feb 15 2024 - 04:08:36 EST

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@xxxxxx>
Reviewed-by: Jai Luthra <j-luthra@xxxxxx>
---

V3->V4:
* Add additional port information in overlays to fix DTC warning:
Warning (graph_child_address): graph node has single child node,
#address-cells/#size-cells are not necessary

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 | 165 ++++++++++++++++++
2 files changed, 178 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..47bb5480b5b0
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-j721e-sk-csi2-dual-imx219.dtso
@@ -0,0 +1,165 @@
+// 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>;
+ };
+ };
+
+ csi0_port1: port@1 {
+ reg = <1>;
+ status = "disabled";
+ };
+
+ csi0_port2: port@2 {
+ reg = <2>;
+ status = "disabled";
+ };
+
+ csi0_port3: port@3 {
+ reg = <3>;
+ status = "disabled";
+ };
+
+ csi0_port4: port@4 {
+ reg = <4>;
+ status = "disabled";
+ };
+ };
+};
+
+&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>;
+ };
+ };
+
+ csi1_port1: port@1 {
+ reg = <1>;
+ status = "disabled";
+ };
+
+ csi1_port2: port@2 {
+ reg = <2>;
+ status = "disabled";
+ };
+
+ csi1_port3: port@3 {
+ reg = <3>;
+ status = "disabled";
+ };
+
+ csi1_port4: port@4 {
+ reg = <4>;
+ status = "disabled";
+ };
+ };
+};
+
+&dphy1 {
+ status = "okay";
+};
+
+&ti_csi2rx1 {
+ status = "okay";
+};
--
2.34.1