drm/msm/sde: add merge rectangles utility
Move merge rectangles logic from sde crtc into a common helper
function to be reused by other components.
Change-Id: Iaec6ac49f4c9ab2ca54a20b7de6bb337d5dbd671
Signed-off-by: Lloyd Atkinson <latkinso@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/sde/sde_kms.h b/drivers/gpu/drm/msm/sde/sde_kms.h
index 01a5535..1f56d73 100644
--- a/drivers/gpu/drm/msm/sde/sde_kms.h
+++ b/drivers/gpu/drm/msm/sde/sde_kms.h
@@ -407,6 +407,14 @@
struct sde_rect *result);
/**
+ * sde_kms_rect_merge_rectangles - merge a rectangle list into one rect
+ * @rois: pointer to the list of rois
+ * @result: output rectangle, all 0 on error
+ */
+void sde_kms_rect_merge_rectangles(const struct msm_roi_list *rois,
+ struct sde_rect *result);
+
+/**
* sde_kms_rect_is_equal - compares two rects
* @r1: rect value to compare
* @r2: rect value to compare