ENGR00303200 [IPU Split] - Vertical line in downsaled image with ratio less 2

The optimal resize ratio should be used if the downscaler is not needed. This
will fix a vertical line in the center for some scaling ratios.

Signed-off-by: Oliver Brown <oliver.brown@freescale.com>

diff --git a/drivers/mxc/ipu3/ipu_calc_stripes_sizes.c b/drivers/mxc/ipu3/ipu_calc_stripes_sizes.c
index 27abb06be12bc9b3be2de0895d873b7393489e7c..c466ea991f8be62842c229e716bd4f92eff555a5 100644 (file)
--- a/drivers/mxc/ipu3/ipu_calc_stripes_sizes.c
+++ b/drivers/mxc/ipu3/ipu_calc_stripes_sizes.c
@@ -388,8 +388,11 @@ int ipu_calc_stripes_sizes(const unsigned int input_frame_width,
                                                     &resize_coeff,
                                                     &downsize_coeff) < 0)
                                return -EINVAL;
-                       left->irr = right->irr =
-                               (downsize_coeff << 14) | resize_coeff;
+
+                       if (downsize_coeff > 0) {
+                               left->irr = right->irr =
+                                       (downsize_coeff << 14) | resize_coeff;
+                       }
                }
                pr_debug("inw %d, onw %d, ilw %d, ilc %d, olw %d,"
                         " irw %d, irc %d, orw %d, orc %d, "