diff options
| author | Hans Verkuil <hans.verkuil@cisco.com> | 2013-05-29 13:18:54 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2013-06-17 12:42:01 (GMT) |
| commit | 7dd8fbbe50c01ead78483bc42f744d115afec96b (patch) | |
| tree | 4fc9bb2f3039476d83ad452d0e2ffa19bae38df8 /drivers/media/i2c | |
| parent | ca37157506ef53dcf41132aaedab70659509ccee (diff) | |
| download | linux-7dd8fbbe50c01ead78483bc42f744d115afec96b.tar.xz | |
[media] adv7183: fix querystd
If no signal is detected, return V4L2_STD_UNKNOWN. Otherwise AND the standard
with the detected standards.
Note that the v4l2 core initializes the std with tvnorms before calling the
querystd ioctl.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Scott Jiang <scott.jiang.linux@gmail.com>
Acked-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/i2c')
| -rw-r--r-- | drivers/media/i2c/adv7183.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/media/i2c/adv7183.c b/drivers/media/i2c/adv7183.c index 980815d..6f738d8 100644 --- a/drivers/media/i2c/adv7183.c +++ b/drivers/media/i2c/adv7183.c @@ -374,28 +374,28 @@ static int adv7183_querystd(struct v4l2_subdev *sd, v4l2_std_id *std) reg = adv7183_read(sd, ADV7183_STATUS_1); switch ((reg >> 0x4) & 0x7) { case 0: - *std = V4L2_STD_NTSC; + *std &= V4L2_STD_NTSC; break; case 1: - *std = V4L2_STD_NTSC_443; + *std &= V4L2_STD_NTSC_443; break; case 2: - *std = V4L2_STD_PAL_M; + *std &= V4L2_STD_PAL_M; break; case 3: - *std = V4L2_STD_PAL_60; + *std &= V4L2_STD_PAL_60; break; case 4: - *std = V4L2_STD_PAL; + *std &= V4L2_STD_PAL; break; case 5: - *std = V4L2_STD_SECAM; + *std &= V4L2_STD_SECAM; break; case 6: - *std = V4L2_STD_PAL_Nc; + *std &= V4L2_STD_PAL_Nc; break; case 7: - *std = V4L2_STD_SECAM; + *std &= V4L2_STD_SECAM; break; default: *std = V4L2_STD_UNKNOWN; |