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V4L/DVB (6715): ivtv: Remove unnecessary register update

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To reduce the number of display register accesses, the yuv code keeps track of
the current video settings. Should there be a change in any single parameter,
it will update the associated display registers to ensure everything is
displayed correctly.

The existing check also looks at the field order for the video. This is not
required, since field reversal does not require any display register changes.

This patch removes the field order from the check.

Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Ian Armstrong 2007-10-21 08:33:59 -03:00 committed by Mauro Carvalho Chehab
parent 166983cdfb
commit 406c8b0ff0
1 changed files with 1 additions and 1 deletions
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2
drivers/media/video/ivtv/ivtv-yuv.c
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@ -1021,7 +1021,7 @@ void ivtv_yuv_setup_frame(struct ivtv *itv, struct ivtv_dma_frame *args)
yi->new_frame_info[frame].update = 0;
yi->new_frame_info[frame].interlaced_y = 0;
yi->new_frame_info[frame].interlaced_uv = 0;
yi->new_frame_info[frame].lace_mode = yi->lace_mode;
yi->new_frame_info[frame].lace_mode = yi->lace_mode & IVTV_YUV_MODE_MASK;
if (memcmp(&yi->old_frame_info_args, &yi->new_frame_info[frame],
sizeof(yi->new_frame_info[frame]))) {