media: Revert "[media] tvp5150: fix pad format frame height"

commit 1831af092308aa5a59ae61e47494e441c8be6b93 upstream.

This reverts commit 0866df8dffd514185bfab0d205db76e4c02cf1e4.

The v4l uAPI documentation [0] makes clear that in the case of interlaced
video (i.e: field is V4L2_FIELD_ALTERNATE) the height refers to the number
of lines in the field and not the number of lines in the full frame (which
is twice the field height for interlaced formats).

So the original height calculation was correct, and it shouldn't had been
changed by the mentioned commit.

[0]:https://linuxtv.org/downloads/v4l-dvb-apis/uapi/v4l/subdev-formats.html

Fixes: 0866df8dffd5 ("[media] tvp5150: fix pad format frame height")

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Cc: <stable@vger.kernel.org>      # for v4.12 and up
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/media/i2c/tvp5150.c b/drivers/media/i2c/tvp5150.c
index 698fa764999c7a0dab55e13ef1cf363c19f45a67..59b0c1fce9be70e7fdc00dd8dfee8d45ef2a2b05 100644 (file)
--- a/drivers/media/i2c/tvp5150.c
+++ b/drivers/media/i2c/tvp5150.c
@@ -871,7 +871,7 @@ static int tvp5150_fill_fmt(struct v4l2_subdev *sd,
        f = &format->format;
 
        f->width = decoder->rect.width;
-       f->height = decoder->rect.height;
+       f->height = decoder->rect.height / 2;
 
        f->code = MEDIA_BUS_FMT_UYVY8_2X8;
        f->field = V4L2_FIELD_ALTERNATE;