drivers: video: add a macro to generate an endpoint ID

This allows referring to one particular interface more easily from
the application or drivers definitions.

The generated endpoint ID is extracted from the address: the reg
property from the devicetree.

Signed-off-by: Josuah Demangeon <[email protected]>

include/zephyr/drivers/video.h

@@ -33,42 +33,6 @@
 extern "C" {
 #endif
 
-/**
- * @brief Video Device Tree endpoint identifier
- *
- * Identify a particular port and particular endpoint of a video device,
- * providing all the context necessary to act upon a video device, via one of
- * its endpoint.
- */
-struct video_dt_spec {
-	/** Device instance of the remote video device to communicate with. */
-	const struct device *dev;
-	/** Devicetree address for this endpoint. */
-	uint32_t endpoint;
-};
-
-/**
- * @brief Get a device reference for an endpoint of a video controller.
- *
- * @code
- * mipi0: mipi-controller@... {
- *     mipi0out: endpoint@0 {
- *         remote-endpoint = <&mjpeg0in>;
- *     };
- * };
- * @endcode
- *
- * Here, the devicetree spec for mipi0out can be obtaine with:
- *
- * @code
- * struct video_dt_spec spec = VIDEO_DT_SPEC_GET(DT_NODELABEL(mipi0out));
- * @endcode
- *
- * @param node_id node identifier of an endpoint phandle property
- */
-#define VIDEO_DT_SPEC_GET(node_id)                                                                 \
-	{.dev = DEVICE_DT_GET(DT_BUS(node_id)), .endpoint = VIDEO_ENDPOINT_ID(node_id)}
-
 /**
  * Obtain the endpoint ID out of an devicetree endpoint node.
  *