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mtd: nand: Pass the CS line to ->setup_data_interface()

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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>
This commit is contained in:
Boris Brezillon 2017-11-22 02:38:28 +09:00 • committed by Masahiro Yamada
parent 436fb2b84d
commit 52cde35b96
2 changed files with 21 additions and 13 deletions
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12
include/linux/mtd/nand.h
View file

@ -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;