From: Hans Verkuil <hans.verk...@cisco.com>
Return V4L2_STD_UNKNOWN if no signal is detected.
Otherwise AND the standard mask with the detected standards.
Signed-off-by: Hans Verkuil <hans.verk...@cisco.com>
---
drivers/media/i2c/bt819.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/media/i2c/bt819.c b/drivers/media/i2c/bt819.c
index ee9ed67..3c0a5ab 100644
--- a/drivers/media/i2c/bt819.c
+++ b/drivers/media/i2c/bt819.c
@@ -217,15 +217,17 @@ static int bt819_status(struct v4l2_subdev *sd, u32
*pstatus, v4l2_std_id *pstd)
struct bt819 *decoder = to_bt819(sd);
int status = bt819_read(decoder, 0x00);
int res = V4L2_IN_ST_NO_SIGNAL;
- v4l2_std_id std;
+ v4l2_std_id std = pstd ? *pstd : V4L2_STD_ALL;
if ((status & 0x80))
res = 0;
+ else
+ std = V4L2_STD_UNKNOWN;
if ((status & 0x10))
- std = V4L2_STD_PAL;
+ std &= V4L2_STD_PAL;
else
- std = V4L2_STD_NTSC;
+ std &= V4L2_STD_NTSC;
if (pstd)
*pstd = std;
if (pstatus)
--
1.7.10.4
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