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authorMiquel Raynal <miquel.raynal@bootlin.com>2020-12-03 22:03:35 +0300
committerMiquel Raynal <miquel.raynal@bootlin.com>2020-12-11 22:09:58 +0300
commitf49bde9fe25cf4cd02440a7ec68f278957ddea37 (patch)
tree8783af7534e6f2b28867d6669844977e9b3d0966 /drivers/mtd
parentbd47fa451315684424d2b39aa95f2ed235fee37a (diff)
downloadlinux-f49bde9fe25cf4cd02440a7ec68f278957ddea37.tar.xz
mtd: rawnand: mpc5121: Do not force a particular software ECC engine
Originally, commit d7157ff49a5b ("mtd: rawnand: Use the ECC framework user input parsing bits") kind of broke the logic around the initialization of several ECC engines. Unfortunately, the fix (which indeed moved the ECC initialization to the right place) did not take into account the fact that a different ECC algorithm could have been used thanks to a DT property, considering the "Hamming" algorithm entry a configuration while it was only a default. Add the necessary logic to be sure Hamming keeps being only a default. Fixes: 6dd09f775b72 ("mtd: rawnand: mpc5121: Move the ECC initialization to ->attach_chip()") Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-5-miquel.raynal@bootlin.com
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/raw/mpc5121_nfc.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mtd/nand/raw/mpc5121_nfc.c b/drivers/mtd/nand/raw/mpc5121_nfc.c
index fb4c0b11689f..bcd4a556c959 100644
--- a/drivers/mtd/nand/raw/mpc5121_nfc.c
+++ b/drivers/mtd/nand/raw/mpc5121_nfc.c
@@ -606,7 +606,9 @@ static void mpc5121_nfc_free(struct device *dev, struct mtd_info *mtd)
static int mpc5121_nfc_attach_chip(struct nand_chip *chip)
{
chip->ecc.engine_type = NAND_ECC_ENGINE_TYPE_SOFT;
- chip->ecc.algo = NAND_ECC_ALGO_HAMMING;
+
+ if (chip->ecc.algo == NAND_ECC_ALGO_UNKNOWN)
+ chip->ecc.algo = NAND_ECC_ALGO_HAMMING;
return 0;
}