media: dt-bindings: media: Add macros for video interface bus types

Add a new dt-bindings/media/video-interfaces.h header that defines
macros corresponding to the bus types from media/video-interfaces.yaml.
This allows avoiding hardcoded constants in device tree sources.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Paul Elder <paul.elder@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

include/dt-bindings/media/video-interfaces.h

+/* SPDX-License-Identifier: (GPL-2.0-only OR MIT) */
+/*
+ * Copyright (C) 2022 Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+ */
+
+#ifndef __DT_BINDINGS_MEDIA_VIDEO_INTERFACES_H__
+#define __DT_BINDINGS_MEDIA_VIDEO_INTERFACES_H__
+
+#define MEDIA_BUS_TYPE_CSI2_CPHY		1
+#define MEDIA_BUS_TYPE_CSI1			2
+#define MEDIA_BUS_TYPE_CCP2			3
+#define MEDIA_BUS_TYPE_CSI2_DPHY		4
+#define MEDIA_BUS_TYPE_PARALLEL			5
+#define MEDIA_BUS_TYPE_BT656			6
+
+#endif /* __DT_BINDINGS_MEDIA_VIDEO_INTERFACES_H__ */