drivers: video: Migrate ov7670 and smartdma to use video interfaces binding

boards/nxp/frdm_mcxn947/frdm_mcxn947.dtsi

@@ -100,6 +100,12 @@ nxp_8080_touch_panel_i2c: &flexcomm2_lpi2c2 {
 		reset-gpios = <&gpio1 19 GPIO_ACTIVE_HIGH>;
 		pwdn-gpios = <&gpio1 18 GPIO_ACTIVE_HIGH>;
 		reg = <0x21>;
+
+		port {
+			ov7670_ep_out: endpoint {
+				remote-endpoint-label = "sdma_ep_in";
+			};
+		};
 	};
 };
 
@@ -112,10 +118,15 @@ nxp_8080_touch_panel_i2c: &flexcomm2_lpi2c2 {
 		compatible = "nxp,video-smartdma";
 		pinctrl-0 = <&pinmux_smartdma_camera>;
 		pinctrl-names = "default";
-		sensor = <&ov7670>;
 		vsync-pin = <4>;
 		hsync-pin = <11>;
 		pclk-pin = <5>;
+
+		port {
+			sdma_ep_in: endpoint {
+				remote-endpoint-label = "ov7670_ep_out";
+			};
+		};
 	};
 };
 

drivers/video/video_mcux_smartdma.c

@@ -365,13 +365,13 @@ static DEVICE_API(video, nxp_video_sdma_api) = {
 	.flush = nxp_video_sdma_flush
 };
 
-#define SOURCE_DEV(inst) DEVICE_DT_GET(DT_INST_PHANDLE(inst, sensor))
+#define SOURCE_DEV(inst) DEVICE_DT_GET(DT_NODE_REMOTE_DEVICE(DT_INST_ENDPOINT_BY_ID(inst, 0, 0)))
 
 #define NXP_VIDEO_SDMA_INIT(inst)                                                                  \
 	PINCTRL_DT_INST_DEFINE(inst);                                                              \
 	const struct nxp_video_sdma_config sdma_config_##inst = {                                  \
 		.dma_dev = DEVICE_DT_GET(DT_INST_PARENT(inst)),                                    \
-		.sensor_dev = SOURCE_DEV(n),                                                       \
+		.sensor_dev = SOURCE_DEV(inst),                                                    \
 		.pincfg = PINCTRL_DT_INST_DEV_CONFIG_GET(inst),                                    \
 		.vsync_pin = DT_INST_PROP(inst, vsync_pin),                                        \
 		.hsync_pin = DT_INST_PROP(inst, hsync_pin),                                        \

dts/bindings/video/nxp,video-smartdma.yaml

@@ -8,10 +8,6 @@ compatible: "nxp,video-smartdma"
 include: [base.yaml, pinctrl-device.yaml]
 
 properties:
-  sensor:
-    required: true
-    type: phandle
-    description: phandle of connected sensor device
   vsync-pin:
     required: true
     type: int
@@ -27,3 +23,7 @@ properties:
     type: int
     description: |
       GPIO0 pin index to use for PCLK input. Only pins 0-15 may be used.
+
+child-binding:
+  child-binding:
+    include: video-interfaces.yaml

dts/bindings/video/ovti,ov7670.yaml

@@ -18,3 +18,7 @@ properties:
       receives this as an active high signal
 
 include: i2c-device.yaml
+
+child-binding:
+  child-binding:
+    include: video-interfaces.yaml

samples/drivers/video/capture/boards/frdm_mcxn947_cpu0.conf

@@ -1,5 +1,2 @@
 CONFIG_VIDEO_BUFFER_POOL_SZ_MAX=40000
 CONFIG_VIDEO_BUFFER_POOL_NUM_MAX=2
-# Workaround for issue where SDMA driver needs to start before camera, so that
-# clock output will be generated for camera device
-CONFIG_CHECK_INIT_PRIORITIES=n

tests/drivers/build_all/video/boards/frdm_mcxn947_mcxn947_cpu0.overlay

@@ -0,0 +1,69 @@
+/*
+ * Copyright 2025 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Names in this file should be chosen in a way that won't conflict
+ * with real-world devicetree nodes, to allow these tests to run on
+ * (and be extended to test) real hardware.
+ */
+
+#include <zephyr/dt-bindings/video/video-interfaces.h>
+
+/ {
+	test {
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		test_gpio: gpio@deadbeef {
+			compatible = "vnd,gpio";
+			gpio-controller;
+			reg = <0xdeadbeef 0x1000>;
+			#gpio-cells = <0x2>;
+		};
+
+		test_flexcomm7_lpi2c7: lpi2c@11112222 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "nxp,lpi2c";
+			reg = <0x11112222 0x1000>;
+			clocks = <&syscon MCUX_FLEXCOMM7_CLK>;
+			clock-frequency = <I2C_BITRATE_STANDARD>;
+			test_ov7670: ov7670@1 {
+				compatible = "ovti,ov7670";
+				reset-gpios = <&test_gpio 19 GPIO_ACTIVE_HIGH>;
+				pwdn-gpios = <&test_gpio 18 GPIO_ACTIVE_HIGH>;
+				reg = <0x1>;
+
+				port {
+					test_ov7670_ep_out: endpoint {
+						remote-endpoint-label = "test_sdma_ep_in";
+					};
+				};
+			};
+		};
+
+		test_smartdma: smartdma@22223333 {
+			compatible = "nxp,smartdma";
+			reg = <0x22223333 0x1000>;
+			interrupt-parent = <&nvic>;
+			interrupts = <0 0>;
+			program-mem = <0x4000000>;
+			#dma-cells = <0>;
+			test_video_sdma: video-sdma {
+				compatible = "nxp,video-smartdma";
+				pinctrl-0 = <&pinmux_smartdma_camera>;
+				pinctrl-names = "default";
+				vsync-pin = <4>;
+				hsync-pin = <11>;
+				pclk-pin = <5>;
+
+				port {
+					test_sdma_ep_in: endpoint {
+						remote-endpoint-label = "test_ov7670_ep_out";
+					};
+				};
+			};
+		};
+	};
+};

tests/drivers/build_all/video/testcase.yaml

@@ -19,3 +19,6 @@ tests:
     platform_allow:
       - mimxrt1170_evk/mimxrt1176/cm7
       - mimxrt1170_evk@B/mimxrt1176/cm7
+  drivers.video.mcux_smartdma.build:
+    platform_allow:
+      - frdm_mcxn947/mcxn947/cpu0