lkml.org 
[lkml]   [2007]   [May]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [patch] make pit clocksource continuous
    Hello.

    Thomas Gleixner wrote:
    >>>> Does this mean that on even an older
    >>>> boards (without acpi at all) the hrtimers
    >>>> won't work?
    >>> Not if PIT is the only clocksource available.
    I was confused as to where the above "not" applies.

    > It does _NOT_ work without pm_timer or hpet
    Thanks, now its clear enough. :)

    > hrtimer_get_res() works, but I have no idea why you need hrtimers in
    > your driver at all.
    This is a pc-speaker PCM driver which needs a
    18.5KHz periodic freq at least (the normal freq
    is 37KHz).
    I used the PIT and only PIT for it in the past,
    but now with using hrtimers, the PIT is no
    longer enough. This is a bit annoying, and
    really, after I added the flag to pit_clocksource,
    it just started to work, so I thought something
    can be done in order for it to keep working with
    PIT only. But if there is no way to do it with
    hrtimers, then oh well.

    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-05-13 20:17    [W:0.022 / U:90.252 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site