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[media] adv7180: fix querystd() method for no input signal 

When the input signal is not detected querystd() method should return
V4L2_STD_UNKNOWN instead of previously latched analog video standard.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Vladimir Barinov 2013-04-11 18:06:46 -03:00 committed by Mauro Carvalho Chehab
parent 61ff5d69dc
commit b294a19214
1 changed files with 4 additions and 0 deletions
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4
drivers/media/i2c/adv7180.c
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@ -135,6 +135,10 @@ struct adv7180_state {
static v4l2_std_id adv7180_std_to_v4l2(u8 status1)
{
/* in case V4L2_IN_ST_NO_SIGNAL */
if (!(status1 & ADV7180_STATUS1_IN_LOCK))
return V4L2_STD_UNKNOWN;
switch (status1 & ADV7180_STATUS1_AUTOD_MASK) {
case ADV7180_STATUS1_AUTOD_NTSM_M_J:
return V4L2_STD_NTSC;