• Benjamin Herrenschmidt's avatar
    [POWERPC] Xserve G5 thermal control fixes · 8279d2e6
    Benjamin Herrenschmidt authored
    The thermal control for the Xserve G5s had a few issues. For one, the
    way to program the RPM fans speeds into the FCU is different between it
    and the desktop models, which I didn't figure out until recently, and it
    was missing a control loop for the slots fan, running it too fast.  Both
    of those problems were causing the machine to be much more noisy than
    necessary.  This patch also changes the fixed value of the slots fan for
    desktop G5s to 40% instead of 50%.  It seems to still have a pretty good
    airflow that way and is much less noisy.
    Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
    Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
    8279d2e6
therm_pm72.c 61.1 KB