linux-kernel - [PATCH for 6.1 4/4] videodev2.h: V4L2_DV_BT_BLANKING

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Date:   Mon, 17 Oct 2022 16:46:28 +0200
From:   Hans Verkuil <hverkuil-cisco@...all.nl>
To:     linux-media@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org,
        Hans Verkuil <hverkuil-cisco@...all.nl>
Subject: [PATCH for 6.1 4/4] videodev2.h: V4L2_DV_BT_BLANKING_HEIGHT should check 'interlaced'

If it is a progressive (non-interlaced) format, then ignore the
interlaced timing values.

Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
Fixes: 7f68127fa11f ([media] videodev2.h: defines to calculate blanking and frame sizes)
---
 include/uapi/linux/videodev2.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/videodev2.h b/include/uapi/linux/videodev2.h
index 86cae23cc446..29da1f4b4578 100644
--- a/include/uapi/linux/videodev2.h
+++ b/include/uapi/linux/videodev2.h
@@ -1601,7 +1601,8 @@ struct v4l2_bt_timings {
 	((bt)->width + V4L2_DV_BT_BLANKING_WIDTH(bt))
 #define V4L2_DV_BT_BLANKING_HEIGHT(bt) \
 	((bt)->vfrontporch + (bt)->vsync + (bt)->vbackporch + \
-	 (bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch)
+	 ((bt)->interlaced ? \
+	  ((bt)->il_vfrontporch + (bt)->il_vsync + (bt)->il_vbackporch) : 0))
 #define V4L2_DV_BT_FRAME_HEIGHT(bt) \
 	((bt)->height + V4L2_DV_BT_BLANKING_HEIGHT(bt))
 
-- 
2.35.1