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mtd: nand: Let on-die ECC engines be retrieved from the NAND core 

Before making use of the ECC engines, we must retrieve them. Add the
necessary boilerplate.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20200930154109.3922-5-miquel.raynal@bootlin.com
This commit is contained in:
Miquel Raynal 2020-09-30 17:41:08 +02:00
parent 945845b54c
commit da429b9615
2 changed files with 7 additions and 0 deletions
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6
drivers/mtd/nand/ecc.c
View File

@ -605,6 +605,12 @@ struct nand_ecc_engine *nand_ecc_get_sw_engine(struct nand_device *nand)
}
EXPORT_SYMBOL(nand_ecc_get_sw_engine);
struct nand_ecc_engine *nand_ecc_get_on_die_hw_engine(struct nand_device *nand)
{
return nand->ecc.ondie_engine;
}
EXPORT_SYMBOL(nand_ecc_get_on_die_hw_engine);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Miquel Raynal <miquel.raynal@bootlin.com>");
MODULE_DESCRIPTION("Generic ECC engine");

1
include/linux/mtd/nand.h
View File

@ -278,6 +278,7 @@ int nand_ecc_finish_io_req(struct nand_device *nand,
struct nand_page_io_req *req);
bool nand_ecc_is_strong_enough(struct nand_device *nand);
struct nand_ecc_engine *nand_ecc_get_sw_engine(struct nand_device *nand);
struct nand_ecc_engine *nand_ecc_get_on_die_hw_engine(struct nand_device *nand);
#if IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING)
struct nand_ecc_engine *nand_ecc_sw_hamming_get_engine(void);