From 9506ab943db438d316386d45eb8a8b60bfeee27c 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 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: 8fc6f1f042b2 ("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 4dfff34800f4..68c08772d7c2 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; } -- 2.34.1