Constify struct cfattach.

ok miod@

xlights(4): timeout_add(9) -> timeout_add_msec(9)

There are no units noted here, but macppc is a 100hz platform so it's safe
to just assume 2500 milliseconds here.

ok jsg@

macppc: mediabay(4), smu(4), xlights(4): tsleep(9) -> tsleep_nsec(9)

This diff completely converts sys/arch/macppc to *sleep_nsec(9).

Also convert dev/thermal.c while we're down here. Unsure what

macppc: mediabay(4), smu(4), xlights(4): tsleep(9) -> tsleep_nsec(9)

This diff completely converts sys/arch/macppc to *sleep_nsec(9).

Also convert dev/thermal.c while we're down here. Unsure what that
file's driver's name is, if any.

ok kn@ visa@

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If you use sys/param.h, you don't need sys/types.h

IPL_MPSAFE bits for macppc with openpic(4).

simplify kthread_create(). no more stdarg
ok matthew guenther mikeb

Unify various gpio access using methods that take an offset relative to the
mac-io bus base address. Needed by upcoming dfs(4) support.

On some Apple machines, the openfirmware returns a gpio offse

Unify various gpio access using methods that take an offset relative to the
mac-io bus base address. Needed by upcoming dfs(4) support.

On some Apple machines, the openfirmware returns a gpio offset relative to
the gpio controller (generaly at 0x50). These offsets should be corrected
to be relative to the bus base address.

looks fine to kettenis@, ok miod@

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simplify and rework the mechanism to run the leds, 'it is better' miod@ deraadt@

Establish interrupt after checking the i2s subsystem, fixes a problem with
xserve G5.

ok drahn

Make xlights(4) probe correctly on the Xserve G5, still does not correct
the i2s timeout.

ok drahn

rename a very long driver name to something shorter, and more clear
and while there, fix the interrupt name for vmstat -iz; ok gwk