diff options
Diffstat (limited to 'include/linux/spi')
| -rw-r--r-- | include/linux/spi/eeprom.h | 10 | ||||
| -rw-r--r-- | include/linux/spi/spi.h | 2 |
2 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/spi/eeprom.h b/include/linux/spi/eeprom.h index 306e7b1c69e..403e007aef6 100644 --- a/include/linux/spi/eeprom.h +++ b/include/linux/spi/eeprom.h @@ -20,6 +20,16 @@ struct spi_eeprom { #define EE_ADDR3 0x0004 /* 24 bit addrs */ #define EE_READONLY 0x0008 /* disallow writes */ + /* + * Certain EEPROMS have a size that is larger than the number of address + * bytes would allow (e.g. like M95040 from ST that has 512 Byte size + * but uses only one address byte (A0 to A7) for addressing.) For + * the extra address bit (A8, A16 or A24) bit 3 of the instruction byte + * is used. This instruction bit is normally defined as don't care for + * other AT25 like chips. + */ +#define EE_INSTR_BIT3_IS_ADDR 0x0010 + /* for exporting this chip's data to other kernel code */ void (*setup)(struct memory_accessor *mem, void *context); void *context; diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 98679b061b6..fa702aeb503 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -254,7 +254,7 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv) * driver is finished with this message, it must call * spi_finalize_current_message() so the subsystem can issue the next * transfer - * @prepare_transfer_hardware: there are currently no more messages on the + * @unprepare_transfer_hardware: there are currently no more messages on the * queue so the subsystem notifies the driver that it may relax the * hardware by issuing this call * |