• Tom Rini's avatar
    [PATCH] A generic RTC driver [3/3] · d7278da5
    Tom Rini authored
    This is part 3 of 3 of the genrtc patches.  This is my own slight bit
    of work, as well as some work by Randolph Chung. This changes
    set_rtc_time(struct *rtc_time) to return an int instead of void.
    This was done so that the arch-specific code here could do additional
    checks on the time and return an error if needed. This then introduces
    include/asm-generic/rtc.h, include/asm-i386/rtc.h and
    include/asm-alpha/rtc.h.  include/asm-generic/rtc.h contains the
    get_rtc_time and set_rtc_time logic that is in drivers/char/rtc.c and
    has been tested on SMP i386.  This also modifies include/asm-ppc/rtc.h
    to return -ENODEV if no rtc hardware is present.
    
    Additionally, Dave Jones pointed out to me a place where we might not be
    safe when jiffies wraps, so this switches that to time_after().
    
    From Randolph Chung, support for a 64bit kernel and a 32bit userland.
    d7278da5
rtc.h 3.05 KB