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| author | Yicong Yang <yangyicong@hisilicon.com> | 2020-07-06 17:22:35 +0800 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@microchip.com> | 2020-07-13 12:09:43 +0300 |
| commit | be192209d5a33c912caa4a05d6f92b89328d8db8 (patch) | |
| tree | a6578a57b53d223cf3b256c9b6fc3a2bea9b7a5e /drivers/mtd/spi-nor/core.h | |
| parent | 8c8f97573eb3843ddd2d8cb95c80ce0243b17d7e (diff) | |
| download | linux-be192209d5a33c912caa4a05d6f92b89328d8db8.tar.bz2 | |
mtd: spi-nor: Add capability to disable flash quad mode
Previous we didn't provide a way to disable the flash's quad mode.
Which means we cannot do some cleanup works when to remove or
poweroff the flash, like what set 4-byte address mode does in
spi_nor_restore().
Add the capability to disable the flash quad mode, by introducing
an enable flag in the flash parameters quad_enable() hooks and
related functions.
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
Link: https://lore.kernel.org/r/1594027356-19088-2-git-send-email-yangyicong@hisilicon.com
Diffstat (limited to 'drivers/mtd/spi-nor/core.h')
| -rw-r--r-- | drivers/mtd/spi-nor/core.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h index 6f2f6b27173f..95aa32f3ceb1 100644 --- a/drivers/mtd/spi-nor/core.h +++ b/drivers/mtd/spi-nor/core.h @@ -198,7 +198,7 @@ struct spi_nor_locking_ops { * higher index in the array, the higher priority. * @erase_map: the erase map parsed from the SFDP Sector Map Parameter * Table. - * @quad_enable: enables SPI NOR quad mode. + * @quad_enable: enables/disables SPI NOR Quad mode. * @set_4byte_addr_mode: puts the SPI NOR in 4 byte addressing mode. * @convert_addr: converts an absolute address into something the flash * will understand. Particularly useful when pagesize is @@ -219,7 +219,7 @@ struct spi_nor_flash_parameter { struct spi_nor_erase_map erase_map; - int (*quad_enable)(struct spi_nor *nor); + int (*quad_enable)(struct spi_nor *nor, bool enable); int (*set_4byte_addr_mode)(struct spi_nor *nor, bool enable); u32 (*convert_addr)(struct spi_nor *nor, u32 addr); int (*setup)(struct spi_nor *nor, const struct spi_nor_hwcaps *hwcaps); @@ -406,9 +406,9 @@ int spi_nor_write_ear(struct spi_nor *nor, u8 ear); int spi_nor_wait_till_ready(struct spi_nor *nor); int spi_nor_lock_and_prep(struct spi_nor *nor); void spi_nor_unlock_and_unprep(struct spi_nor *nor); -int spi_nor_sr1_bit6_quad_enable(struct spi_nor *nor); -int spi_nor_sr2_bit1_quad_enable(struct spi_nor *nor); -int spi_nor_sr2_bit7_quad_enable(struct spi_nor *nor); +int spi_nor_sr1_bit6_quad_enable(struct spi_nor *nor, bool enable); +int spi_nor_sr2_bit1_quad_enable(struct spi_nor *nor, bool enable); +int spi_nor_sr2_bit7_quad_enable(struct spi_nor *nor, bool enable); int spi_nor_xread_sr(struct spi_nor *nor, u8 *sr); ssize_t spi_nor_read_data(struct spi_nor *nor, loff_t from, size_t len, |