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[media] v4l: s5p-tv: mixer: fix setup of VP scaling 

Adjusting of Video Processor's scaling factors was flawed. It bounded scaling
to range 1/16 to 1/1. The correct range should be 1/4 to 4/1. This patch fixes
this bug.

Signed-off-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Tomasz Stanislawski 2011-11-25 05:56:18 -03:00 committed by Mauro Carvalho Chehab
parent 0d066d3f6f
commit 392d9e1d02
1 changed files with 4 additions and 4 deletions
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8
drivers/media/video/s5p-tv/mixer_vp_layer.c
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@ -172,10 +172,10 @@ static void mxr_vp_fix_geometry(struct mxr_layer *layer,
y_center = src->y_offset + src->height / 2;
/* ensure scaling is between 0.25x .. 16x */
src->width = clamp(src->width, round_up(dst->width, 4),
dst->width * 16);
src->height = clamp(src->height, round_up(dst->height, 4),
dst->height * 16);
src->width = clamp(src->width, round_up(dst->width / 16, 4),
dst->width * 4);
src->height = clamp(src->height, round_up(dst->height / 16, 4),
dst->height * 4);
/* hardware limits */
src->width = clamp(src->width, 32U, 2047U);