]> git.hungrycats.org Git - linux/commit
mtd: spinand: winbond: Fix 512GW, 01GW, 01JW and 02JW ECC information
authorMiquel Raynal <miquel.raynal@bootlin.com>
Wed, 9 Oct 2024 12:50:00 +0000 (14:50 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 9 Dec 2024 09:41:05 +0000 (10:41 +0100)
commit234d5f75c3ae911b52c5e4442b8a87fbbd129836
tree14b5d47ffd837962d120e36b628a9784acf5b8a2
parent5e127c439298f8bd07ac36c607c63072983d04df
mtd: spinand: winbond: Fix 512GW, 01GW, 01JW and 02JW ECC information

commit fee9b240916df82a8b07aef0fdfe96785417a164 upstream.

These four chips:
* W25N512GW
* W25N01GW
* W25N01JW
* W25N02JW
all require a single bit of ECC strength and thus feature an on-die
Hamming-like ECC engine. There is no point in filling a ->get_status()
callback for them because the main ECC status bytes are located in
standard places, and retrieving the number of bitflips in case of
corrected chunk is both useless and unsupported (if there are bitflips,
then there is 1 at most, so no need to query the chip for that).

Without this change, a kernel warning triggers every time a bit flips.

Fixes: 6a804fb72de5 ("mtd: spinand: winbond: add support for serial NAND flash")
Cc: stable@vger.kernel.org
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Reviewed-by: Frieder Schrempf <frieder.schrempf@kontron.de>
Link: https://lore.kernel.org/linux-mtd/20241009125002.191109-3-miquel.raynal@bootlin.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/mtd/nand/spi/winbond.c