From: Hans Verkuil <hans.verkuil@xxxxxxxxx> Return V4L2_STD_UNKNOWN if no signal is detected. Otherwise AND the standard mask with the detected standards. Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
