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/ks0127.c | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/drivers/media/i2c/ks0127.c b/drivers/media/i2c/ks0127.c
index c722776..f7250e5 100644
--- a/drivers/media/i2c/ks0127.c
+++ b/drivers/media/i2c/ks0127.c
@@ -616,17 +616,24 @@ static int ks0127_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pstd
{
int stat = V4L2_IN_ST_NO_SIGNAL;
u8 status;
- v4l2_std_id std = V4L2_STD_ALL;
+ v4l2_std_id std = pstd ? *pstd : V4L2_STD_ALL;
status = ks0127_read(sd, KS_STAT);
if (!(status & 0x20)) /* NOVID not set */
stat = 0;
- if (!(status & 0x01)) /* CLOCK set */
+ if (!(status & 0x01)) { /* CLOCK set */
stat |= V4L2_IN_ST_NO_COLOR;
- if ((status & 0x08)) /* PALDET set */
- std = V4L2_STD_PAL;
+ std = V4L2_STD_UNKNOWN;
+ } else {
+ if ((status & 0x08)) /* PALDET set */
+ std &= V4L2_STD_PAL;
+ else
+ std &= V4L2_STD_NTSC;
+ }
+ if ((status & 0x10)) /* PALDET set */
+ std &= V4L2_STD_525_60;
else
- std = V4L2_STD_NTSC;
+ std &= V4L2_STD_625_50;
if (pstd)
*pstd = std;
if (pstatus)
--
1.7.10.4
--
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