OMAPDSS: APPLY: move check functions

The functions dss_ovl_check, dss_mgr_check_zorder, dss_mgr_check in
apply.c are not really part of the apply mechanism, and can be moved to
overlay.c and manager.c.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

1 files changed, 63 insertions, 0 deletions

diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 8c967ef2ae9..542258dbdcc 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -592,3 +592,66 @@ struct omap_overlay_manager *omap_dss_get_overlay_manager(int num)
 }
 EXPORT_SYMBOL(omap_dss_get_overlay_manager);
 
+static int dss_mgr_check_zorder(struct omap_overlay_manager *mgr,
+                struct omap_overlay_info **overlay_infos)
+{
+        struct omap_overlay *ovl1, *ovl2;
+        struct omap_overlay_info *info1, *info2;
+
+        list_for_each_entry(ovl1, &mgr->overlays, list) {
+                info1 = overlay_infos[ovl1->id];
+
+                if (info1 == NULL)
+                        continue;
+
+                list_for_each_entry(ovl2, &mgr->overlays, list) {
+                        if (ovl1 == ovl2)
+                                continue;
+
+                        info2 = overlay_infos[ovl2->id];
+
+                        if (info2 == NULL)
+                                continue;
+
+                        if (info1->zorder == info2->zorder) {
+                                DSSERR("overlays %d and %d have the same "
+                                                "zorder %d\n",
+                                        ovl1->id, ovl2->id, info1->zorder);
+                                return -EINVAL;
+                        }
+                }
+        }
+
+        return 0;
+}
+
+int dss_mgr_check(struct omap_overlay_manager *mgr,
+                struct omap_dss_device *dssdev,
+                struct omap_overlay_manager_info *info,
+                struct omap_overlay_info **overlay_infos)
+{
+        struct omap_overlay *ovl;
+        int r;
+
+        if (dss_has_feature(FEAT_ALPHA_FREE_ZORDER)) {
+                r = dss_mgr_check_zorder(mgr, overlay_infos);
+                if (r)
+                        return r;
+        }
+
+        list_for_each_entry(ovl, &mgr->overlays, list) {
+                struct omap_overlay_info *oi;
+                int r;
+
+                oi = overlay_infos[ovl->id];
+
+                if (oi == NULL)
+                        continue;
+
+                r = dss_ovl_check(ovl, oi, dssdev);
+                if (r)
+                        return r;
+        }
+
+        return 0;
+}