diff options
| author | Boris Brezillon <boris.brezillon@free-electrons.com> | 2017-11-22 02:38:28 +0900 |
|---|---|---|
| committer | Masahiro Yamada <yamada.masahiro@socionext.com> | 2017-11-29 00:28:59 +0900 |
| commit | 52cde35b9645e60a0c8e4040136476c4f9804110 (patch) | |
| tree | 0f4eeb88e9bffcbc388a7c95faee3f868aa92813 /include/linux | |
| parent | 436fb2b84dc24853298f1768c596f7ee02d582d7 (diff) | |
mtd: nand: Pass the CS line to ->setup_data_interface()
Some NAND controllers can assign different NAND timings to different
CS lines. Pass the CS line information to ->setup_data_interface() so
that the NAND controller driver knows which CS line is concerned by
the setup_data_interface() request.
Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
[Linux commit: 104e442a67cfba4d0cc982384761befb917fb6a1]
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mtd/nand.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h index 90c6010105..b1a664815d 100644 --- a/include/linux/mtd/nand.h +++ b/include/linux/mtd/nand.h @@ -124,6 +124,8 @@ void nand_wait_ready(struct mtd_info *mtd); #define NAND_STATUS_READY 0x40 #define NAND_STATUS_WP 0x80 +#define NAND_DATA_IFACE_CHECK_ONLY -1 + /* * Constants for ECC_MODES */ @@ -807,7 +809,10 @@ nand_get_sdr_timings(const struct nand_data_interface *conf) * @read_retries: [INTERN] the number of read retry modes supported * @onfi_set_features: [REPLACEABLE] set the features for ONFI nand * @onfi_get_features: [REPLACEABLE] get the features for ONFI nand - * @setup_data_interface: [OPTIONAL] setup the data interface and timing + * @setup_data_interface: [OPTIONAL] setup the data interface and timing. If + * chipnr is set to %NAND_DATA_IFACE_CHECK_ONLY this + * means the configuration should not be applied but + * only checked. * @bbt: [INTERN] bad block table pointer * @bbt_td: [REPLACEABLE] bad block table descriptor for flash * lookup. @@ -851,9 +856,8 @@ struct nand_chip { int (*onfi_get_features)(struct mtd_info *mtd, struct nand_chip *chip, int feature_addr, uint8_t *subfeature_para); int (*setup_read_retry)(struct mtd_info *mtd, int retry_mode); - int (*setup_data_interface)(struct mtd_info *mtd, - const struct nand_data_interface *conf, - bool check_only); + int (*setup_data_interface)(struct mtd_info *mtd, int chipnr, + const struct nand_data_interface *conf); int chip_delay; |