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Commit cc0f51ec authored by Thomas Petazzoni's avatar Thomas Petazzoni Committed by Boris Brezillon
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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: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: default avatarRichard Weinberger <richard@nod.at>
Signed-off-by: default avatarBoris Brezillon <boris.brezillon@free-electrons.com>
parent 785818fa

drivers/mtd/nand/nand_base.c

+6 −4
Original line number Diff line number Diff line
@@ -1524,7 +1524,7 @@ 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,

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);
@@ -1532,6 +1532,7 @@ static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip, 
		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
@@ -2469,7 +2470,7 @@ 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,

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);
@@ -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

include/linux/mtd/nand.h

+8 −0
Original line number Diff line number Diff line
@@ -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);