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Commit e83c30c7 authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
Browse files

[media] ks0127: fix querystd 



Return V4L2_STD_UNKNOWN if no signal is detected.
Otherwise AND the standard mask with the detected standards.

Signed-off-by: default avatarHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent ddc7f72a

drivers/media/i2c/ks0127.c

+12 −5
Original line number Diff line number Diff line
@@ -609,17 +609,24 @@ 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;

		std = V4L2_STD_UNKNOWN;

	} else {

		if ((status & 0x08))		   /* PALDET set */

		std = V4L2_STD_PAL;

			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)