From: Hans Verkuil Date: Wed, 29 May 2013 13:19:01 +0000 (-0300) Subject: [media] vpx3220: fix querystd X-Git-Tag: firefly_0821_release~176^2~3573^2~1698 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=32cb3b09f4716583921d3244f67893441bfb9af2;p=firefly-linux-kernel-4.4.55.git [media] vpx3220: fix querystd Return V4L2_STD_UNKNOWN if no signal is detected. Otherwise AND the standard mask with the detected standards. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/i2c/vpx3220.c b/drivers/media/i2c/vpx3220.c index 4c57d8a67c22..ece90df6a043 100644 --- a/drivers/media/i2c/vpx3220.c +++ b/drivers/media/i2c/vpx3220.c @@ -295,7 +295,7 @@ static int vpx3220_init(struct v4l2_subdev *sd, u32 val) static int vpx3220_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pstd) { int res = V4L2_IN_ST_NO_SIGNAL, status; - v4l2_std_id std = 0; + v4l2_std_id std = pstd ? *pstd : V4L2_STD_ALL; status = vpx3220_fp_read(sd, 0x0f3); @@ -312,19 +312,21 @@ static int vpx3220_status(struct v4l2_subdev *sd, u32 *pstatus, v4l2_std_id *pst case 0x10: case 0x14: case 0x18: - std = V4L2_STD_PAL; + std &= V4L2_STD_PAL; break; case 0x08: - std = V4L2_STD_SECAM; + std &= V4L2_STD_SECAM; break; case 0x04: case 0x0c: case 0x1c: - std = V4L2_STD_NTSC; + std &= V4L2_STD_NTSC; break; } + } else { + std = V4L2_STD_UNKNOWN; } if (pstd) *pstd = std;