From 66a55b8542aab624faac01801eb3cec36d279be5 Mon Sep 17 00:00:00 2001 From: Miquel Raynal Date: Thu, 3 Dec 2020 20:03:36 +0100 Subject: [PATCH] mtd: rawnand: orion: Do not force a particular software ECC engine Originally, commit 86503c2fe61f ("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. Reported-by: Chris Packham Fixes: e42c021e7131 ("mtd: rawnand: orion: Move the ECC initialization to ->attach_chip()") Signed-off-by: Miquel Raynal Tested-by: Chris Packham Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-6-miquel.raynal@bootlin.com --- drivers/mtd/nand/raw/orion_nand.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/mtd/nand/raw/orion_nand.c b/drivers/mtd/nand/raw/orion_nand.c index e3bb65fd3ab2f..66211c9311d2f 100644 --- a/drivers/mtd/nand/raw/orion_nand.c +++ b/drivers/mtd/nand/raw/orion_nand.c @@ -86,7 +86,9 @@ static void orion_nand_read_buf(struct nand_chip *chip, uint8_t *buf, int len) static int orion_nand_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