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mtd: spi-nor: remove unused read_xfer/write_xfer hooks 

struct spi_nor_xfer_cfg and read_xfer/write_xfer hooks were never used by
any driver. Do some cleanup by removing them.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Cyrille Pitchen 2015-09-18 17:49:25 +02:00 committed by Brian Norris
parent 730a43fbc1
commit 79c452adb1
1 changed files with 0 additions and 35 deletions
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35
include/linux/mtd/spi-nor.h
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@ -87,33 +87,6 @@ enum read_mode {
SPI_NOR_QUAD,
};
/**
* struct spi_nor_xfer_cfg - Structure for defining a Serial Flash transfer
* @wren: command for "Write Enable", or 0x00 for not required
* @cmd: command for operation
* @cmd_pins: number of pins to send @cmd (1, 2, 4)
* @addr: address for operation
* @addr_pins: number of pins to send @addr (1, 2, 4)
* @addr_width: number of address bytes
* (3,4, or 0 for address not required)
* @mode: mode data
* @mode_pins: number of pins to send @mode (1, 2, 4)
* @mode_cycles: number of mode cycles (0 for mode not required)
* @dummy_cycles: number of dummy cycles (0 for dummy not required)
*/
struct spi_nor_xfer_cfg {
u8 wren;
u8 cmd;
u8 cmd_pins;
u32 addr;
u8 addr_pins;
u8 addr_width;
u8 mode;
u8 mode_pins;
u8 mode_cycles;
u8 dummy_cycles;
};
#define SPI_NOR_MAX_CMD_SIZE 8
enum spi_nor_ops {
SPI_NOR_OPS_READ = 0,
@ -144,14 +117,11 @@ struct mtd_info;
* @flash_read: the mode of the read
* @sst_write_second: used by the SST write operation
* @flags: flag options for the current SPI-NOR (SNOR_F_*)
* @cfg: used by the read_xfer/write_xfer
* @cmd_buf: used by the write_reg
* @prepare: [OPTIONAL] do some preparations for the
* read/write/erase/lock/unlock operations
* @unprepare: [OPTIONAL] do some post work after the
* read/write/erase/lock/unlock operations
* @read_xfer: [OPTIONAL] the read fundamental primitive
* @write_xfer: [OPTIONAL] the writefundamental primitive
* @read_reg: [DRIVER-SPECIFIC] read out the register
* @write_reg: [DRIVER-SPECIFIC] write data to the register
* @read: [DRIVER-SPECIFIC] read data from the SPI NOR
@ -176,15 +146,10 @@ struct spi_nor {
enum read_mode flash_read;
bool sst_write_second;
u32 flags;
struct spi_nor_xfer_cfg cfg;
u8 cmd_buf[SPI_NOR_MAX_CMD_SIZE];
int (*prepare)(struct spi_nor *nor, enum spi_nor_ops ops);
void (*unprepare)(struct spi_nor *nor, enum spi_nor_ops ops);
int (*read_xfer)(struct spi_nor *nor, struct spi_nor_xfer_cfg *cfg,
u8 *buf, size_t len);
int (*write_xfer)(struct spi_nor *nor, struct spi_nor_xfer_cfg *cfg,
u8 *buf, size_t len);
int (*read_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len);
int (*write_reg)(struct spi_nor *nor, u8 opcode, u8 *buf, int len);