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drm/omap: cleanup offset calculation

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The code to calculate offset in dispc's calc_offset() is overly complex.
Simplify it.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Tomi Valkeinen 2017-05-03 15:01:10 +03:00
parent 517a8a9564
commit 185e23e1f6
1 changed files with 2 additions and 4 deletions
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6
drivers/gpu/drm/omapdrm/dss/dispc.c
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@ -1923,11 +1923,9 @@ static void calc_offset(u16 screen_width, u16 width,
* field 0 = even field = bottom field
* field 1 = odd field = top field
*/
*offset0 = field_offset * screen_width * ps;
*offset1 = 0;
if (field_offset)
*offset0 = *offset1 + field_offset * screen_width * ps;
else
*offset0 = *offset1;
*row_inc = pixinc(1 + (y_predecim * screen_width - width * x_predecim) +
(fieldmode ? screen_width : 0), ps);
if (color_mode == OMAP_DSS_COLOR_YUV2 ||