From 8c2b6fe99ffac089ddd452f6862e5c54921b947b Mon Sep 17 00:00:00 2001 From: Miquel Raynal Date: Thu, 3 Dec 2020 20:03:37 +0100 Subject: [PATCH] mtd: rawnand: pasemi: Do not force a particular software ECC engine Originally, commit 0e765ad5a001 ("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: 71cc05811cda ("mtd: rawnand: pasemi: Move the ECC initialization to ->attach_chip()") Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-7-miquel.raynal@bootlin.com --- drivers/mtd/nand/raw/pasemi_nand.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/pasemi_nand.c b/drivers/mtd/nand/raw/pasemi_nand.c index 4dfff34800f4e..68c08772d7c26 100644 --- a/drivers/mtd/nand/raw/pasemi_nand.c +++ b/drivers/mtd/nand/raw/pasemi_nand.c @@ -77,7 +77,9 @@ static int pasemi_device_ready(struct nand_chip *chip) static int pasemi_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; } -- 2.39.5