[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>
diff --git a/drivers/media/video/s5p-tv/mixer_vp_layer.c b/drivers/media/video/s5p-tv/mixer_vp_layer.c
index e41ec2e..3d13a63 100644
--- a/drivers/media/video/s5p-tv/mixer_vp_layer.c
+++ b/drivers/media/video/s5p-tv/mixer_vp_layer.c
@@ -172,10 +172,10 @@
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);