media: v4l2-fwnode: Include v4l2_fwnode_bus_type

V4L2 fwnode bus types are enumerated in v4l2-fwnode.c, meaning they aren't
available to the rest of the kernel. Move the enum to the corresponding
header so that I can use the label to refer to those values.
Suggested-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: NLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: NAndy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: NDaniel Scally <djrscally@gmail.com>
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/v4l2-core/v4l2-fwnode.c

@@ -28,17 +28,6 @@
 #include <media/v4l2-fwnode.h>
 #include <media/v4l2-subdev.h>
 
-enum v4l2_fwnode_bus_type {
-	V4L2_FWNODE_BUS_TYPE_GUESS = 0,
-	V4L2_FWNODE_BUS_TYPE_CSI2_CPHY,
-	V4L2_FWNODE_BUS_TYPE_CSI1,
-	V4L2_FWNODE_BUS_TYPE_CCP2,
-	V4L2_FWNODE_BUS_TYPE_CSI2_DPHY,
-	V4L2_FWNODE_BUS_TYPE_PARALLEL,
-	V4L2_FWNODE_BUS_TYPE_BT656,
-	NR_OF_V4L2_FWNODE_BUS_TYPE,
-};
-
 static const struct v4l2_fwnode_bus_conv {
 	enum v4l2_fwnode_bus_type fwnode_bus_type;
 	enum v4l2_mbus_type mbus_type;

include/media/v4l2-fwnode.h

@@ -213,6 +213,28 @@ struct v4l2_fwnode_connector {
 	} connector;
 };
 
+/**
+ * enum v4l2_fwnode_bus_type - Video bus types defined by firmware properties
+ * @V4L2_FWNODE_BUS_TYPE_GUESS: Default value if no bus-type fwnode property
+ * @V4L2_FWNODE_BUS_TYPE_CSI2_CPHY: MIPI CSI-2 bus, C-PHY physical layer
+ * @V4L2_FWNODE_BUS_TYPE_CSI1: MIPI CSI-1 bus
+ * @V4L2_FWNODE_BUS_TYPE_CCP2: SMIA Compact Camera Port 2 bus
+ * @V4L2_FWNODE_BUS_TYPE_CSI2_DPHY: MIPI CSI-2 bus, D-PHY physical layer
+ * @V4L2_FWNODE_BUS_TYPE_PARALLEL: Camera Parallel Interface bus
+ * @V4L2_FWNODE_BUS_TYPE_BT656: BT.656 video format bus-type
+ * @NR_OF_V4L2_FWNODE_BUS_TYPE: Number of bus-types
+ */
+enum v4l2_fwnode_bus_type {
+	V4L2_FWNODE_BUS_TYPE_GUESS = 0,
+	V4L2_FWNODE_BUS_TYPE_CSI2_CPHY,
+	V4L2_FWNODE_BUS_TYPE_CSI1,
+	V4L2_FWNODE_BUS_TYPE_CCP2,
+	V4L2_FWNODE_BUS_TYPE_CSI2_DPHY,
+	V4L2_FWNODE_BUS_TYPE_PARALLEL,
+	V4L2_FWNODE_BUS_TYPE_BT656,
+	NR_OF_V4L2_FWNODE_BUS_TYPE
+};
+
 /**
  * v4l2_fwnode_endpoint_parse() - parse all fwnode node properties
  * @fwnode: pointer to the endpoint's fwnode handle