staging: omapdrm: Expose the OMAP Z-Order property through DRM

Added support for zorder changes through DRM plane properties

Signed-off-by: Andre Renaud <andre@bluewatersys.com>
Signed-off-by: Rob Clark <rob@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/omapdrm/omap_drv.h b/drivers/staging/omapdrm/omap_drv.h
index b103d28..9dc72d1 100644 (file)
--- a/drivers/staging/omapdrm/omap_drv.h
+++ b/drivers/staging/omapdrm/omap_drv.h
@@ -62,6 +62,7 @@ struct omap_drm_private {
 
        /* properties: */
        struct drm_property *rotation_prop;
+       struct drm_property *zorder_prop;
 };
 
 /* this should probably be in drm-core to standardize amongst drivers */

diff --git a/drivers/staging/omapdrm/omap_plane.c b/drivers/staging/omapdrm/omap_plane.c
index 6931d06..4bde639 100644 (file)
--- a/drivers/staging/omapdrm/omap_plane.c
+++ b/drivers/staging/omapdrm/omap_plane.c
@@ -433,6 +433,15 @@ void omap_plane_install_properties(struct drm_plane *plane,
                priv->rotation_prop = prop;
        }
        drm_object_attach_property(obj, prop, 0);
+
+        prop = priv->zorder_prop;
+        if (!prop) {
+               prop = drm_property_create_range(dev, 0, "zorder", 0, 3);
+               if (prop == NULL)
+                       return;
+               priv->zorder_prop = prop;
+       }
+       drm_object_attach_property(obj, prop, 0);
 }
 
 int omap_plane_set_property(struct drm_plane *plane,
@@ -452,6 +461,16 @@ int omap_plane_set_property(struct drm_plane *plane,
                        ret = omap_plane_dpms(plane, DRM_MODE_DPMS_ON);
                else
                        ret = 0;
+       } else if (property == priv->zorder_prop) {
+               struct omap_overlay *ovl = omap_plane->ovl;
+
+               DBG("%s: zorder: %d", ovl->name, (uint32_t)val);
+               omap_plane->info.zorder = val;
+
+               if (ovl->is_enabled(ovl))
+                       ret = omap_plane_dpms(plane, DRM_MODE_DPMS_ON);
+               else
+                       ret = 0;
        }
 
        return ret;