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| author |   Miquel Raynal <miquel.raynal@bootlin.com> | 2021-12-16 12:16:41 +0100 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2022-02-09 09:49:36 +0100 |
| commit | 5145abeb0649acf810a32e63bd762e617a9b3309 (patch) | |
| tree | 5e181bdd954b9d4225b2dce9d96f867094b14f7e /include/linux/mtd | |
| parent | mtd: nand: mxic-ecc: Add Macronix external ECC engine support (diff) | |
| download | linux-dev-5145abeb0649acf810a32e63bd762e617a9b3309.tar.xz linux-dev-5145abeb0649acf810a32e63bd762e617a9b3309.zip | |
mtd: nand: ecc: Provide a helper to retrieve a pilelined engine device
In a pipelined engine situation, we might either have the host which
internally has support for error correction, or have it using an
external hardware block for this purpose. In the former case, the host
is also the ECC engine. In the latter case, it is not. In order to get
the right pointers on the right devices (for example: in order to devm_*
allocate variables), let's introduce this helper which can safely be
called by pipelined ECC engines in order to retrieve the right device
structure.
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20211216111654.238086-16-miquel.raynal@bootlin.com
Diffstat (limited to 'include/linux/mtd')
| -rw-r--r-- | include/linux/mtd/nand.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index b617efa0a881..615b3e3a3920 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -309,6 +309,7 @@ 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); struct nand_ecc_engine *nand_ecc_get_on_host_hw_engine(struct nand_device *nand); void nand_ecc_put_on_host_hw_engine(struct nand_device *nand); +struct device *nand_ecc_get_engine_dev(struct device *host); #if IS_ENABLED(CONFIG_MTD_NAND_ECC_SW_HAMMING) struct nand_ecc_engine *nand_ecc_sw_hamming_get_engine(void); |