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ACPICA: Drop acpi_set_gpe

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The acpi_set_gpe() function is a little awkward, because it doesn't
really work as advertised in the "disable" case.  Namely, if a GPE
has been enabled with acpi_enable_gpe() and triggered a notification
to occur, and if acpi_set_gpe() is used to disable it before
acpi_ev_asynch_enable_gpe() runs, the GPE will be immediately enabled
by the latter as though the acpi_set_gpe() had no effect.

Thus, since it's been possible to make all of its callers use
alternative operations to disable or enable GPEs, acpi_set_gpe() can
be dropped.

Signed-off-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Len Brown <[email protected]>
This commit is contained in:
Rafael J. Wysocki 2010-07-01 11:07:20 +08:00 • committed by Len Brown
commit 546eb57695
3 changed files with 1 additions and 63 deletions
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2
include/acpi/acpixf.h
View file

@ -282,8 +282,6 @@ acpi_status acpi_get_event_status(u32 event, acpi_event_status * event_status);
/*
* GPE Interfaces
*/
acpi_status acpi_set_gpe(acpi_handle gpe_device, u32 gpe_number, u8 action);
acpi_status acpi_enable_gpe(acpi_handle gpe_device, u32 gpe_number);
acpi_status acpi_disable_gpe(acpi_handle gpe_device, u32 gpe_number);

2
include/acpi/actypes.h
View file

@ -663,7 +663,7 @@ typedef u32 acpi_event_status;
#define ACPI_GPE_MAX 0xFF
#define ACPI_NUM_GPE 256
/* Actions for acpi_set_gpe, acpi_gpe_wakeup, acpi_hw_low_set_gpe */
/* Actions for acpi_gpe_wakeup, acpi_hw_low_set_gpe */
#define ACPI_GPE_ENABLE 0
#define ACPI_GPE_DISABLE 1