From a854c58dc9895898a80fa46cea7e7e9d3bce9447 Mon Sep 17 00:00:00 2001 From: Thorsten Schmelzer Date: Tue, 25 Nov 2025 15:29:57 +0100 Subject: [PATCH] media: adv7180: fix frame interval in progressive mode MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Upstream commit 90289b67c5c1d4c18784059b27460d292e16d208 ] The ADV7280-M may internally convert interlaced video input to progressive video. If this mode is enabled, the ADV7280-M delivers progressive video frames at the field rate of 50 fields per second (PAL) or 60 fields per second (NTSC). Fix the reported frame interval if progressive video is enabled. Signed-off-by: Thorsten Schmelzer Reviewed-by: Niklas Söderlund Signed-off-by: Michael Tretter Signed-off-by: Hans Verkuil Signed-off-by: Sasha Levin --- drivers/media/i2c/adv7180.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c index f3f47beff76b..36e0f7a8c6d5 100644 --- a/drivers/media/i2c/adv7180.c +++ b/drivers/media/i2c/adv7180.c @@ -480,6 +480,13 @@ static int adv7180_get_frame_interval(struct v4l2_subdev *sd, fi->interval.denominator = 25; } + /* + * If the de-interlacer is active, the chip produces full video frames + * at the field rate. + */ + if (state->field == V4L2_FIELD_NONE) + fi->interval.denominator *= 2; + return 0; }