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+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2017 Ideas on Board <kieran.bingham@ideasonboard.com>
+ * Copyright (C) 2021 Jacopo Mondi <jacopo+renesas@jmondi.org>
+ *
+ * Device Tree Source (overlay) that describes GMSL camera connected to
+ * Fakra connectors for the Eagle V3M and Condor V3H (and compatible) boards.
+ *
+ * The following cameras are currently supported: RDACM20 and RDACM21.
+ *
+ * The board .dts file that include this has to select which cameras are in use
+ * by specifying the camera model with:
+ *
+ * #define GMSL_CAMERA_RDACM20
+ * or
+ * #define GMSL_CAMERA_RDACM21
+ *
+ * And which cameras are connected to the board by defining:
+ * for GMSL channel 0:
+ * #define GMSL_CAMERA_0
+ * #define GMSL_CAMERA_1
+ * #define GMSL_CAMERA_2
+ * #define GMSL_CAMERA_3
+ *
+ * for GMSL channel 1:
+ * #define GMSL_CAMERA_4
+ * #define GMSL_CAMERA_5
+ * #define GMSL_CAMERA_6
+ * #define GMSL_CAMERA_7
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+/* Validate the board file settings. */
+#if !defined(GMSL_CAMERA_RDACM20) && !defined(GMSL_CAMERA_RDACM21)
+#error "Camera model should be defined by the board file"
+#endif
+
+#if defined(GMSL_CAMERA_RDACM20) && defined(GMSL_CAMERA_RDACM21)
+#error "A single camera model should be selected"
+#endif
+
+#if !defined(GMSL_CAMERA_0) && !defined(GMSL_CAMERA_1) && \
+ !defined(GMSL_CAMERA_2) && !defined(GMSL_CAMERA_3) && \
+ !defined(GMSL_CAMERA_4) && !defined(GMSL_CAMERA_5) && \
+ !defined(GMSL_CAMERA_6) && !defined(GMSL_CAMERA_7)
+#error "At least one camera should be selected"
+#endif
+
+/* Deduce from the enabled cameras which GMSL channels are active. */
+#if defined(GMSL_CAMERA_0) || defined(GMSL_CAMERA_1) || \
+ defined(GMSL_CAMERA_2) || defined(GMSL_CAMERA_3)
+#define GMSL_0
+#endif
+
+#if defined(GMSL_CAMERA_4) || defined(GMSL_CAMERA_5) || \
+ defined(GMSL_CAMERA_6) || defined(GMSL_CAMERA_7)
+#define GMSL_1
+#endif
+
+/* Deduce the camera model compatible string. */
+#if defined(GMSL_CAMERA_RDACM20)
+#define GMSL_CAMERA_MODEL "imi,rdacm20"
+#elif defined(GMSL_CAMERA_RDACM21)
+#define GMSL_CAMERA_MODEL "imi,rdacm21"
+#endif
+
+#ifdef GMSL_0
+&vin0 {
+ status = "okay";
+};
+
+&vin1 {
+ status = "okay";
+};
+
+&vin2 {
+ status = "okay";
+};
+
+&vin3 {
+ status = "okay";
+};
+
+&gmsl0 {
+ status = "okay";
+
+#if defined(GMSL_CAMERA_RDACM21)
+ maxim,reverse-channel-microvolt = <100000>;
+#endif
+
+ ports {
+#ifdef GMSL_CAMERA_0
+ port@0 {
+ max9286_in0: endpoint {
+ remote-endpoint = <&fakra_con0>;
+ };
+ };
+#endif
+
+#ifdef GMSL_CAMERA_1
+ port@1 {
+ max9286_in1: endpoint{
+ remote-endpoint = <&fakra_con1>;
+ };
+
+ };
+#endif
+
+#ifdef GMSL_CAMERA_2
+ port@2 {
+ max9286_in2: endpoint {
+ remote-endpoint = <&fakra_con2>;
+ };
+
+ };
+#endif
+
+#ifdef GMSL_CAMERA_3
+ port@3 {
+ max9286_in3: endpoint {
+ remote-endpoint = <&fakra_con3>;
+ };
+
+ };
+#endif
+ };
+
+ i2c-mux {
+#ifdef GMSL_CAMERA_0
+ i2c@0 {
+ status = "okay";
+
+ camera@51 {
+ compatible = GMSL_CAMERA_MODEL;
+ reg = <0x51>, <0x61>;
+
+ port {
+ fakra_con0: endpoint {
+ remote-endpoint = <&max9286_in0>;
+ };
+ };
+ };
+ };
+#endif
+
+#ifdef GMSL_CAMERA_1
+ i2c@1 {
+ status = "okay";
+
+ camera@52 {
+ compatible = GMSL_CAMERA_MODEL;
+ reg = <0x52>, <0x62>;
+
+ port {
+ fakra_con1: endpoint {
+ remote-endpoint = <&max9286_in1>;
+ };
+ };
+ };
+ };
+#endif
+
+#ifdef GMSL_CAMERA_2
+ i2c@2 {
+ status = "okay";
+
+ camera@53 {
+ compatible = GMSL_CAMERA_MODEL;
+ reg = <0x53>, <0x63>;
+
+ port {
+ fakra_con2: endpoint {
+ remote-endpoint = <&max9286_in2>;
+ };
+ };
+ };
+ };
+#endif
+
+#ifdef GMSL_CAMERA_3
+ i2c@3 {
+ status = "okay";
+
+ camera@54 {
+ compatible = GMSL_CAMERA_MODEL;
+ reg = <0x54>, <0x64>;
+
+ port {
+ fakra_con3: endpoint {
+ remote-endpoint = <&max9286_in3>;
+ };
+ };
+ };
+ };
+#endif
+ };
+};
+#endif /* ifdef GMSL_0 */
+
+#ifdef GMSL_1
+&vin4 {
+ status = "okay";
+};
+
+&vin5 {
+ status = "okay";
+};
+
+&vin6 {
+ status = "okay";
+};
+
+&vin7 {
+ status = "okay";
+};
+
+&gmsl1 {
+ status = "okay";
+
+#if defined(GMSL_CAMERA_RDACM21)
+ maxim,reverse-channel-microvolt = <100000>;
+#endif
+
+ ports {
+#ifdef GMSL_CAMERA_4
+ port@0 {
+ max9286_in4: endpoint {
+ remote-endpoint = <&fakra_con4>;
+ };
+ };
+#endif
+
+#ifdef GMSL_CAMERA_5
+ port@1 {
+ max9286_in5: endpoint{
+ remote-endpoint = <&fakra_con5>;
+ };
+
+ };
+#endif
+
+#ifdef GMSL_CAMERA_6
+ port@2 {
+ max9286_in6: endpoint {
+ remote-endpoint = <&fakra_con6>;
+ };
+
+ };
+#endif
+
+#ifdef GMSL_CAMERA_7
+ port@3 {
+ max9286_in7: endpoint {
+ remote-endpoint = <&fakra_con7>;
+ };
+
+ };
+#endif
+ };
+
+ i2c-mux {
+#ifdef GMSL_CAMERA_4
+ i2c@0 {
+ status = "okay";
+
+ camera@55 {
+ compatible = GMSL_CAMERA_MODEL;
+ reg = <0x55>, <0x65>;
+
+ port {
+ fakra_con4: endpoint {
+ remote-endpoint = <&max9286_in4>;
+ };
+ };
+ };
+ };
+#endif
+
+#ifdef GMSL_CAMERA_5
+ i2c@1 {
+ status = "okay";
+
+ camera@56 {
+ compatible = GMSL_CAMERA_MODEL;
+ reg = <0x56>, <0x66>;
+
+ port {
+ fakra_con5: endpoint {
+ remote-endpoint = <&max9286_in5>;
+ };
+ };
+ };
+ };
+#endif
+
+#ifdef GMSL_CAMERA_6
+ i2c@2 {
+ status = "okay";
+
+ camera@57 {
+ compatible = GMSL_CAMERA_MODEL;
+ reg = <0x57>, <0x67>;
+
+ port {
+ fakra_con6: endpoint {
+ remote-endpoint = <&max9286_in6>;
+ };
+ };
+ };
+ };
+#endif
+
+#ifdef GMSL_CAMERA_7
+ i2c@3 {
+ status = "okay";
+
+ camera@58 {
+ compatible = GMSL_CAMERA_MODEL;
+ reg = <0x58>, <0x68>;
+
+ port {
+ fakra_con7: endpoint {
+ remote-endpoint = <&max9286_in7>;
+ };
+ };
+ };
+ };
+#endif
+ };
+};
+#endif /* ifdef GMSL_1 */