17 	struct blk_desc *dev_desc;  in dfu_write_medium_mtd()  local
29 		dev_desc = rockchip_get_bootdev();  in dfu_write_medium_mtd()
30 		if (!dev_desc) {  in dfu_write_medium_mtd()
40 			ret = blk_derase(dev_desc, block_start, block_len);  in dfu_write_medium_mtd()
48 		ret = blk_dwrite(dev_desc, block_start, block_len, buf);  in dfu_write_medium_mtd()
69 	struct blk_desc *dev_desc;  in dfu_read_medium_mtd()  local
81 		dev_desc = rockchip_get_bootdev();  in dfu_read_medium_mtd()
82 		if (!dev_desc) {  in dfu_read_medium_mtd()
90 		ret = blk_dread(dev_desc, block_start, block_len, buf);  in dfu_read_medium_mtd()
121 	struct blk_desc *dev_desc;  in dfu_fill_entity_mtd()  local
137 		dev_desc = rockchip_get_bootdev();  in dfu_fill_entity_mtd()
138 		if (!dev_desc) {  in dfu_fill_entity_mtd()
143 		if (part_get_info_by_name(dev_desc, s, &dfu_part) < 0)  in dfu_fill_entity_mtd()