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| author | Shaohua Li <shaohua.li@intel.com> | 2007-06-20 09:17:58 +0800 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2008-02-01 18:30:55 -0500 |
| commit | a3627f67b1d5ddd8f65eedc2a76da90fbe062530 (patch) | |
| tree | e04a54df6697c27f58eb32a062e984d583eaf9b0 /drivers/acpi | |
| parent | f4cb57007662a4ec3c2de3c027900223e0299bdd (diff) | |
| download | blackbird-op-linux-a3627f67b1d5ddd8f65eedc2a76da90fbe062530.tar.gz blackbird-op-linux-a3627f67b1d5ddd8f65eedc2a76da90fbe062530.zip | |
ACPI: clear GPE earily in resume to avoid warning
Wakeup GPE hasn't a handler. If system is waked up by such GPE like a
USB hotplug, I saw a lot of error reporting the GPE hasn't handler.
acpi_leave_sleep_state will clear the GPE but it's too late, we should
do it before interrupt is re-enabled.
Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/sleep/main.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c index cbfa058d89e3..96d23b3cfc4e 100644 --- a/drivers/acpi/sleep/main.c +++ b/drivers/acpi/sleep/main.c @@ -146,6 +146,13 @@ static int acpi_pm_enter(suspend_state_t pm_state) if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) acpi_clear_event(ACPI_EVENT_POWER_BUTTON); + /* + * Disable and clear GPE status before interrupt is enabled. Some GPEs + * (like wakeup GPE) haven't handler, this can avoid such GPE misfire. + * acpi_leave_sleep_state will reenable specific GPEs later + */ + acpi_hw_disable_all_gpes(); + local_irq_restore(flags); printk(KERN_DEBUG "Back to C!\n"); |
