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authorMiquel Raynal <miquel.raynal@bootlin.com>2020-12-03 20:03:40 +0100
committerMiquel Raynal <miquel.raynal@bootlin.com>2020-12-11 20:10:02 +0100
commit33d974e76e21e9da8a36b14d2dce6394c36c3e30 (patch)
treeac67f6daa94c32b9a63e103625e3f02479de42b6
parentcf75f00fc8026040f6ff8f054cfec99e820b62e7 (diff)
downloadlinux-33d974e76e21e9da8a36b14d2dce6394c36c3e30.tar.bz2
mtd: rawnand: xway: 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: d525914b5bd8 ("mtd: rawnand: xway: Move the ECC initialization to ->attach_chip()") Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20201203190340.15522-10-miquel.raynal@bootlin.com
-rw-r--r--drivers/mtd/nand/raw/xway_nand.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/mtd/nand/raw/xway_nand.c b/drivers/mtd/nand/raw/xway_nand.c
index efc5bf5434e0..26751976e502 100644
--- a/drivers/mtd/nand/raw/xway_nand.c
+++ b/drivers/mtd/nand/raw/xway_nand.c
@@ -149,7 +149,9 @@ static void xway_write_buf(struct nand_chip *chip, const u_char *buf, int len)
static int xway_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;
}