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Re-enable the HPET timer after a resume.

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Submitted by:	Andrea Bittau <a.bittau@cs.ucl.ac.uk>
MFC after:	3 days
This commit is contained in:
Nate Lawson 2007-03-28 22:28:48 +00:00
parent 4301b2519d
commit 5394d87e21
1 changed files with 13 additions and 0 deletions
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13
sys/dev/acpica/acpi_hpet.c
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@ -154,6 +154,18 @@ acpi_hpet_detach(device_t dev)
return (EBUSY);
}
static int
acpi_hpet_resume(device_t dev)
{
struct acpi_hpet_softc *sc;
/* Re-enable the timer after a resume to keep the clock advancing. */
sc = device_get_softc(dev);
bus_write_4(sc->mem_res, HPET_OFFSET_ENABLE, 1);
return (0);
}
/* Print some basic latency/rate information to assist in debugging. */
static void
acpi_hpet_test(struct acpi_hpet_softc *sc)
@ -188,6 +200,7 @@ static device_method_t acpi_hpet_methods[] = {
DEVMETHOD(device_probe, acpi_hpet_probe),
DEVMETHOD(device_attach, acpi_hpet_attach),
DEVMETHOD(device_detach, acpi_hpet_detach),
DEVMETHOD(device_resume, acpi_hpet_resume),
{0, 0}
};