[media] v4l: Forbid usage of V4L2_MBUS_FMT definitions inside the kernel

Place v4l2_mbus_pixelcode in a #ifndef __KERNEL__ section so that kernel
users don't have access to these definitions.

We have to keep this definition for user-space users even though they're
encouraged to move to the new media_bus_format enum.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

1 files changed, 28 insertions, 17 deletions

diff --git a/include/uapi/linux/v4l2-mediabus.h b/include/uapi/linux/v4l2-mediabus.h
index 26180844c6b8..b1934a3961e4 100644
--- a/include/uapi/linux/v4l2-mediabus.h
+++ b/include/uapi/linux/v4l2-mediabus.h
@@ -15,6 +15,33 @@
 #include <linux/types.h>
 #include <linux/videodev2.h>
 
+/**
+ * struct v4l2_mbus_framefmt - frame format on the media bus
+ * @width:      frame width
+ * @height:     frame height
+ * @code:       data format code (from enum v4l2_mbus_pixelcode)
+ * @field:      used interlacing type (from enum v4l2_field)
+ * @colorspace: colorspace of the data (from enum v4l2_colorspace)
+ */
+struct v4l2_mbus_framefmt {
+        __u32                   width;
+        __u32                   height;
+        __u32                   code;
+        __u32                   field;
+        __u32                   colorspace;
+        __u32                   reserved[7];
+};
+
+#ifndef __KERNEL__
+/*
+ * enum v4l2_mbus_pixelcode and its definitions are now deprecated, and
+ * MEDIA_BUS_FMT_ definitions (defined in media-bus-format.h) should be
+ * used instead.
+ *
+ * New defines should only be added to media-bus-format.h. The
+ * v4l2_mbus_pixelcode enum is frozen.
+ */
+
 #define V4L2_MBUS_FROM_MEDIA_BUS_FMT(name)      \
         V4L2_MBUS_FMT_ ## name = MEDIA_BUS_FMT_ ## name
 
@@ -102,22 +129,6 @@ enum v4l2_mbus_pixelcode {
 
         V4L2_MBUS_FROM_MEDIA_BUS_FMT(AHSV8888_1X32),
 };
-
-/**
- * struct v4l2_mbus_framefmt - frame format on the media bus
- * @width:      frame width
- * @height:     frame height
- * @code:       data format code (from enum v4l2_mbus_pixelcode)
- * @field:      used interlacing type (from enum v4l2_field)
- * @colorspace: colorspace of the data (from enum v4l2_colorspace)
- */
-struct v4l2_mbus_framefmt {
-        __u32                   width;
-        __u32                   height;
-        __u32                   code;
-        __u32                   field;
-        __u32                   colorspace;
-        __u32                   reserved[7];
-};
+#endif /* __KERNEL__ */
 
 #endif