diff mbox series

[RESEND,v5,06/21] mtd: rawnand: Add an invalid ECC mode to discriminate with valid ones

Message ID 20200526195633.11543-7-miquel.raynal@bootlin.com
State New
Headers show
Series [RESEND,v5,01/21] mtd: Fix typo in mtd_ooblayout_set_databytes() description | expand

Commit Message

Miquel Raynal May 26, 2020, 7:56 p.m. UTC 
NAND ECC modes (or providers) have their own enumeration but, unlike
their algorithms counterpart, there is no invalid or uninitialized
value to discriminate between an error and having chosen a no-ECC
situation. Add an "invalid" entry for this purpose.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
---
 drivers/mtd/nand/raw/nand_base.c | 2 +-
 include/linux/mtd/rawnand.h      | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/mtd/nand/raw/nand_base.c b/drivers/mtd/nand/raw/nand_base.c
index a756f3193558..ef70ca0828c3 100644
--- a/drivers/mtd/nand/raw/nand_base.c
+++ b/drivers/mtd/nand/raw/nand_base.c
@@ -5027,7 +5027,7 @@  static int of_get_nand_ecc_mode(struct device_node *np)
 	if (err < 0)
 		return err;
 
-	for (i = 0; i < ARRAY_SIZE(nand_ecc_modes); i++)
+	for (i = NAND_ECC_NONE; i < ARRAY_SIZE(nand_ecc_modes); i++)
 		if (!strcasecmp(pm, nand_ecc_modes[i]))
 			return i;
 
diff --git a/include/linux/mtd/rawnand.h b/include/linux/mtd/rawnand.h
index 7b87c5dc89bd..8187056dd3a0 100644
--- a/include/linux/mtd/rawnand.h
+++ b/include/linux/mtd/rawnand.h
@@ -84,6 +84,7 @@  struct nand_chip;
  * Constants for ECC_MODES
  */
 enum nand_ecc_mode {
+	NAND_ECC_INVALID,
 	NAND_ECC_NONE,
 	NAND_ECC_SOFT,
 	NAND_ECC_HW,