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authorHans Verkuil <hans.verkuil@cisco.com>2015-03-09 16:06:55 +0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-04-03 02:33:37 +0300
commitba24b442033b7f50e24798685f4b24b8e4c3aaa2 (patch)
tree8a2d5ef9310e2b2bf4d353cbea643127d1548fe0 /drivers/media/platform/vivid
parent9c35bd48d54345b2c89426dd2efdb33adaa0aac3 (diff)
downloadlinux-ba24b442033b7f50e24798685f4b24b8e4c3aaa2.tar.xz
[media] vivid: do not allow video loopback for SEQ_TB/BT
Sequential top-bottom/bottom-top fields are not supported as video loopback. This is too much work to implement for field settings that are rarely used. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/platform/vivid')
-rw-r--r--drivers/media/platform/vivid/vivid-vid-common.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/media/platform/vivid/vivid-vid-common.c b/drivers/media/platform/vivid/vivid-vid-common.c
index 6bef1e6d6788..49c9bc68c14f 100644
--- a/drivers/media/platform/vivid/vivid-vid-common.c
+++ b/drivers/media/platform/vivid/vivid-vid-common.c
@@ -210,6 +210,13 @@ bool vivid_vid_can_loop(struct vivid_dev *dev)
return false;
if (dev->field_cap != dev->field_out)
return false;
+ /*
+ * While this can be supported, it is just too much work
+ * to actually implement.
+ */
+ if (dev->field_cap == V4L2_FIELD_SEQ_TB ||
+ dev->field_cap == V4L2_FIELD_SEQ_BT)
+ return false;
if (vivid_is_svid_cap(dev) && vivid_is_svid_out(dev)) {
if (!(dev->std_cap & V4L2_STD_525_60) !=
!(dev->std_out & V4L2_STD_525_60))