uint32_t active_vblank_irq_count;
 
 #ifdef CONFIG_DEBUG_FS
-       /**
-        * @crc_win_x_start_property:
-        *
-        * X start of the crc calculation window
-        */
+       /* set the crc calculation window*/
        struct drm_property *crc_win_x_start_property;
-       /**
-        * @crc_win_y_start_property:
-        *
-        * Y start of the crc calculation window
-        */
        struct drm_property *crc_win_y_start_property;
-       /**
-        * @crc_win_x_end_property:
-        *
-        * X end of the crc calculation window
-        */
        struct drm_property *crc_win_x_end_property;
-       /**
-        * @crc_win_y_end_property:
-        *
-        * Y end of the crc calculation window
-        */
        struct drm_property *crc_win_y_end_property;
 #endif
        /**