• Sven Van Asbroeck's avatar
    eeprom: at24: support eeproms that do not auto-rollover reads · e32213fb
    Sven Van Asbroeck authored
    Some multi-address eeproms in the at24 family may not automatically
    roll-over reads to the next slave address. On those eeproms, reads
    that straddle slave boundaries will not work correctly.
    
    Solution:
    Mark such eeproms with a flag that prevents reads straddling
    slave boundaries. Add the AT24_FLAG_NO_RDROL flag to the eeprom
    entry in the device_id table, or add 'no-read-rollover' to the
    eeprom devicetree entry.
    
    Note that I have not personally enountered an at24 chip that
    does not support read rollovers. They may or may not exist.
    However, my hardware requires this functionality because of
    a quirk.
    Signed-off-by: default avatarSven Van Asbroeck <svendev@arcx.com>
    Signed-off-by: default avatarBartosz Golaszewski <brgl@bgdev.pl>
    e32213fb
at24.h 2.08 KB