diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 3083c53e027049196f8f18561cd1d13f51b72a07..b7c11991cb09b62e10b41ac5e8c6790737e5417e 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -766,6 +766,7 @@ struct nand_chip {
  * @options: stores various chip bit options
  * @id_len: The valid length of the @id.
  * @oobsize: OOB size
+ * @ecc: ECC correctability and step information from the datasheet.
  * @ecc.strength_ds: The ECC correctability from the datasheet, same as the
  *                   @ecc_strength_ds in nand_chip{}.
  * @ecc.step_ds: The ECC step required by the @ecc.strength_ds, same as the