• Mark Brown's avatar
    mfd: Add basic WM831x OTP support · 6704e517
    Mark Brown authored
    The WM831x series of devices use OTP (One Time Programmable, a type
    of PROM) to store system configuration. At run time this data is
    visible via registers.
    
    Currently the only explicitly supported feature is that the unique
    ID provided by every WM831x device is exported to user space via
    sysfs. Other configuration data may be read by system-specific
    code in the pre_init() and post_init() platform data operations.
    Signed-off-by: default avatarMark Brown <broonie@opensource.wolfsonmicro.com>
    Signed-off-by: default avatarSamuel Ortiz <sameo@linux.intel.com>
    6704e517
wm831x-otp.c 1.85 KB