On 2016-08-02 17:00:07 +0200, Lars-Peter Clausen wrote:
> [...]
> > diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
> > index a8b434b..c6fed71 100644
> > --- a/drivers/media/i2c/adv7180.c
> > +++ b/drivers/media/i2c/adv7180.c
> > @@ -680,10 +680,13 @@ static int adv7180_set_pad_format(struct v4l2_subdev *sd,
> > switch (format->format.field) {
> > case V4L2_FIELD_NONE:
> > if (!(state->chip_info->flags & ADV7180_FLAG_I2P))
> > - format->format.field = V4L2_FIELD_INTERLACED;
> > + format->format.field = V4L2_FIELD_ALTERNATE;
> > break;
> > default:
> > - format->format.field = V4L2_FIELD_INTERLACED;
> > + if (state->chip_info->flags & ADV7180_FLAG_I2P)
> > + format->format.field = V4L2_FIELD_INTERLACED;
>
> I'm not convinced this is correct. As far as I understand it when the I2P
> feature is enabled the core outputs full progressive frames at the full
> framerate. If it is bypassed it outputs half-frames. So we have the option
> of either V4L2_FIELD_NONE or V4L2_FIELD_ALTERNATE, but never interlaced. I
> think this branch should setup the field format to be ALTERNATE regardless
> of whether the I2P feature is available.
I be happy to update the patch in such manner, but I feel this is more
for Steven to handle. I have no deep understanding of the adv7180 driver
and the only HW I have is the adv7180 and not adv7280, adv7280_m,
adv7282 or adv7282_m which is the models which have the ADV7180_FLAG_I2P
flag. So I can't really test such a change.
Steven do you want to update this patch and resend it? I can drop it
from this series altogether since the rcar-vin changes do not depend on
it. I only kept it since I want the rcar-vin changes to be picked up
before the adv7180 changes, otherwise the rcar-vin driver will stop to
function on Koelsch. I can also ofc make the change suggested by Lars if
you prefer, but then I want your blessing to do so. I have already
changed so much of your original patch :-)
>
> > + else
> > + format->format.field = V4L2_FIELD_ALTERNATE;
> > break;
> > }
> >
>
--
Regards,
Niklas Söderlund
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