ACPI / ACPICA: Fix sysfs GPE interface

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The sysfs interface allowing user space to disable/enable GPEs
doesn't work correctly, because a GPE disabled this way will be
re-enabled shortly by acpi_ev_asynch_enable_gpe() if it was
previosuly enabled by acpi_enable_gpe() (in which case the
corresponding bit in its enable register's enable_for_run mask is
set).

To address this issue make the sysfs GPE interface use
acpi_enable_gpe() and acpi_disable_gpe() instead of acpi_set_gpe()
so that GPE reference counters are modified by it along with the
values of GPE enable registers.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>

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Rafael J. Wysocki 2010-06-08 10:50:53 +02:00 • committed by Len Brown

parent ce43ace023

commit 9d3c752de6

1 changed files with 4 additions and 2 deletions

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6

drivers/acpi/system.c

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