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mtd: nand: export nand_{read,write}_page_raw() 

The nand_read_page_raw() and nand_write_page_raw() functions might be
re-used by vendor-specific implementations of the read_page/write_page
functions. Instead of having vendor-specific code duplicate this code,
it is much better to export those functions and allow them to be
re-used.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
This commit is contained in:
Thomas Petazzoni 2017-04-29 11:06:44 +02:00 committed by Boris Brezillon
parent 785818fa83
commit cc0f51ec11
2 changed files with 14 additions and 4 deletions
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10
drivers/mtd/nand/nand_base.c
View File

@ -1524,14 +1524,15 @@ EXPORT_SYMBOL(nand_check_erased_ecc_chunk);
*
* Not for syndrome calculating ECC controllers, which use a special oob layout.
*/
static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int oob_required, int page)
int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int oob_required, int page)
{
chip->read_buf(mtd, buf, mtd->writesize);
if (oob_required)
chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
return 0;
}
EXPORT_SYMBOL(nand_read_page_raw);
/**
* nand_read_page_raw_syndrome - [INTERN] read raw page data without ecc
@ -2469,8 +2470,8 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from,
*
* Not for syndrome calculating ECC controllers, which use a special oob layout.
*/
static int nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required, int page)
int nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required, int page)
{
chip->write_buf(mtd, buf, mtd->writesize);
if (oob_required)
@ -2478,6 +2479,7 @@ static int nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
return 0;
}
EXPORT_SYMBOL(nand_write_page_raw);
/**
* nand_write_page_raw_syndrome - [INTERN] raw page write function

8
include/linux/mtd/nand.h
View File

@ -1259,6 +1259,14 @@ int nand_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip, int page);
int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
int page);
/* Default read_page_raw implementation */
int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
uint8_t *buf, int oob_required, int page);
/* Default write_page_raw implementation */
int nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
const uint8_t *buf, int oob_required, int page);
/* Reset and initialize a NAND device */
int nand_reset(struct nand_chip *chip, int chipnr);