1 files changed, 53 insertions, 2 deletions

diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c
index 75642c22cac..456efef03c2 100644
--- a/drivers/video/omap2/dss/overlay.c
+++ b/drivers/video/omap2/dss/overlay.c
@@ -257,6 +257,43 @@ static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
         return size;
 }
 
+static ssize_t overlay_pre_mult_alpha_show(struct omap_overlay *ovl,
+                char *buf)
+{
+        return snprintf(buf, PAGE_SIZE, "%d\n",
+                        ovl->info.pre_mult_alpha);
+}
+
+static ssize_t overlay_pre_mult_alpha_store(struct omap_overlay *ovl,
+                const char *buf, size_t size)
+{
+        int r;
+        struct omap_overlay_info info;
+
+        ovl->get_overlay_info(ovl, &info);
+
+        /* only GFX and Video2 plane support pre alpha multiplied
+         * set zero for Video1 plane
+         */
+        if (!dss_has_feature(FEAT_GLOBAL_ALPHA_VID1) &&
+                ovl->id == OMAP_DSS_VIDEO1)
+                info.pre_mult_alpha = 0;
+        else
+                info.pre_mult_alpha = simple_strtoul(buf, NULL, 10);
+
+        r = ovl->set_overlay_info(ovl, &info);
+        if (r)
+                return r;
+
+        if (ovl->manager) {
+                r = ovl->manager->apply(ovl->manager);
+                if (r)
+                        return r;
+        }
+
+        return size;
+}
+
 struct overlay_attribute {
         struct attribute attr;
         ssize_t (*show)(struct omap_overlay *, char *);
@@ -280,6 +317,9 @@ static OVERLAY_ATTR(enabled, S_IRUGO|S_IWUSR,
                 overlay_enabled_show, overlay_enabled_store);
 static OVERLAY_ATTR(global_alpha, S_IRUGO|S_IWUSR,
                 overlay_global_alpha_show, overlay_global_alpha_store);
+static OVERLAY_ATTR(pre_mult_alpha, S_IRUGO|S_IWUSR,
+                overlay_pre_mult_alpha_show,
+                overlay_pre_mult_alpha_store);
 
 static struct attribute *overlay_sysfs_attrs[] = {
         &overlay_attr_name.attr,
@@ -290,6 +330,7 @@ static struct attribute *overlay_sysfs_attrs[] = {
         &overlay_attr_output_size.attr,
         &overlay_attr_enabled.attr,
         &overlay_attr_global_alpha.attr,
+        &overlay_attr_pre_mult_alpha.attr,
         NULL
 };
 
@@ -623,12 +664,22 @@ void dss_recheck_connections(struct omap_dss_device *dssdev, bool force)
         int i;
         struct omap_overlay_manager *lcd_mgr;
         struct omap_overlay_manager *tv_mgr;
+        struct omap_overlay_manager *lcd2_mgr = NULL;
         struct omap_overlay_manager *mgr = NULL;
 
         lcd_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_LCD);
         tv_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_TV);
-
-        if (dssdev->type != OMAP_DISPLAY_TYPE_VENC) {
+        if (dss_has_feature(FEAT_MGR_LCD2))
+                lcd2_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_LCD2);
+
+        if (dssdev->channel == OMAP_DSS_CHANNEL_LCD2) {
+                if (!lcd2_mgr->device || force) {
+                        if (lcd2_mgr->device)
+                                lcd2_mgr->unset_device(lcd2_mgr);
+                        lcd2_mgr->set_device(lcd2_mgr, dssdev);
+                        mgr = lcd2_mgr;
+                }
+        } else if (dssdev->type != OMAP_DISPLAY_TYPE_VENC) {
                 if (!lcd_mgr->device || force) {
                         if (lcd_mgr->device)
                                 lcd_mgr->unset_device(lcd_mgr);