diff options
author | Paul Cercueil <paul@crapouillou.net> | 2021-10-16 16:22:26 +0300 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-01-27 12:53:41 +0300 |
commit | e2a17dcad56e0252520eaa4eedb8572df9784c85 (patch) | |
tree | f784aa59399c8d90b84be83ca1c9423a35f6ae07 /drivers/mtd/nand | |
parent | 8933138a6660388ccb915b4094dbd1caf2743345 (diff) | |
download | linux-e2a17dcad56e0252520eaa4eedb8572df9784c85.tar.xz |
mtd: rawnand: davinci: Rewrite function description
commit 0697f8441faad552fbeb02d74454b5e7bcc956a2 upstream.
The original comment that describes the function
nand_davinci_read_page_hwecc_oob_first() is very obscure and it is hard
to understand what it is for.
Cc: <stable@vger.kernel.org> # v5.2
Fixes: a0ac778eb82c ("mtd: rawnand: ingenic: Add support for the JZ4740")
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211016132228.40254-3-paul@crapouillou.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/mtd/nand')
-rw-r--r-- | drivers/mtd/nand/raw/davinci_nand.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/mtd/nand/raw/davinci_nand.c b/drivers/mtd/nand/raw/davinci_nand.c index 2fedfc46eff8..bfd3f440aca5 100644 --- a/drivers/mtd/nand/raw/davinci_nand.c +++ b/drivers/mtd/nand/raw/davinci_nand.c @@ -372,17 +372,15 @@ correct: } /** - * nand_read_page_hwecc_oob_first - hw ecc, read oob first + * nand_davinci_read_page_hwecc_oob_first - Hardware ECC page read with ECC + * data read from OOB area * @chip: nand chip info structure * @buf: buffer to store read data * @oob_required: caller requires OOB data read to chip->oob_poi * @page: page number to read * - * Hardware ECC for large page chips, require OOB to be read first. For this - * ECC mode, the write_page method is re-used from ECC_HW. These methods - * read/write ECC from the OOB area, unlike the ECC_HW_SYNDROME support with - * multiple ECC steps, follows the "infix ECC" scheme and reads/writes ECC from - * the data area, by overwriting the NAND manufacturer bad block markings. + * Hardware ECC for large page chips, which requires the ECC data to be + * extracted from the OOB before the actual data is read. */ static int nand_davinci_read_page_hwecc_oob_first(struct nand_chip *chip, uint8_t *buf, |