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
--- a/drivers/staging/omapdrm/omap_drv.h
+++ b/drivers/staging/omapdrm/omap_drv.h
@@ -62,6 +62,7 @@
/* 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
--- a/drivers/staging/omapdrm/omap_plane.c
+++ b/drivers/staging/omapdrm/omap_plane.c
@@ -433,6 +433,15 @@
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 @@
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;