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| author | Lin Ming <ming.m.lin@intel.com> | 2010-12-13 08:39:37 +0300 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2011-01-12 12:27:00 +0300 |
| commit | da50337373c90c15c6db6ed4239e87c5a3806f9a (patch) | |
| tree | fb13213a1af36ece5cb760a9567dd44683f6f368 /drivers/acpi/acpica/evgpe.c | |
| parent | a0fcdb237fcd4eaa7e5009b28ef5be07415f287d (diff) | |
| download | linux-da50337373c90c15c6db6ed4239e87c5a3806f9a.tar.xz | |
ACPICA: Misc comments to minimize code divergence
Modify/add some comments to minimize ACPICA/linux GPE code divergence.
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'drivers/acpi/acpica/evgpe.c')
| -rw-r--r-- | drivers/acpi/acpica/evgpe.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c index 3bcf5ef74c62..7c339d34ab42 100644 --- a/drivers/acpi/acpica/evgpe.c +++ b/drivers/acpi/acpica/evgpe.c @@ -104,7 +104,7 @@ acpi_ev_update_gpe_enable_mask(struct acpi_gpe_event_info *gpe_event_info) * * RETURN: Status * - * DESCRIPTION: Clear the given GPE from stale events and enable it. + * DESCRIPTION: Clear a GPE of stale events and enable it. * ******************************************************************************/ acpi_status @@ -142,7 +142,7 @@ acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info) * * FUNCTION: acpi_ev_add_gpe_reference * - * PARAMETERS: gpe_event_info - GPE to enable + * PARAMETERS: gpe_event_info - Add a reference to this GPE * * RETURN: Status * @@ -163,6 +163,9 @@ acpi_status acpi_ev_add_gpe_reference(struct acpi_gpe_event_info *gpe_event_info gpe_event_info->runtime_count++; if (gpe_event_info->runtime_count == 1) { + + /* Enable on first reference */ + status = acpi_ev_update_gpe_enable_mask(gpe_event_info); if (ACPI_SUCCESS(status)) { status = acpi_ev_enable_gpe(gpe_event_info); @@ -180,7 +183,7 @@ acpi_status acpi_ev_add_gpe_reference(struct acpi_gpe_event_info *gpe_event_info * * FUNCTION: acpi_ev_remove_gpe_reference * - * PARAMETERS: gpe_event_info - GPE to disable + * PARAMETERS: gpe_event_info - Remove a reference to this GPE * * RETURN: Status * @@ -201,6 +204,9 @@ acpi_status acpi_ev_remove_gpe_reference(struct acpi_gpe_event_info *gpe_event_i gpe_event_info->runtime_count--; if (!gpe_event_info->runtime_count) { + + /* Disable on last reference */ + status = acpi_ev_update_gpe_enable_mask(gpe_event_info); if (ACPI_SUCCESS(status)) { status = acpi_hw_low_set_gpe(gpe_event_info, @@ -386,7 +392,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list) } ACPI_DEBUG_PRINT((ACPI_DB_INTERRUPTS, - "Read GPE Register at GPE%X: Status=%02X, Enable=%02X\n", + "Read GPE Register at GPE%02X: Status=%02X, Enable=%02X\n", gpe_register_info->base_gpe_number, status_reg, enable_reg)); @@ -660,8 +666,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device, status = acpi_hw_clear_gpe(gpe_event_info); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Unable to clear GPE[0x%2X]", - gpe_number)); + "Unable to clear GPE%02X", gpe_number)); return_UINT32(ACPI_INTERRUPT_NOT_HANDLED); } } @@ -720,7 +725,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device, gpe_event_info); if (ACPI_FAILURE(status)) { ACPI_EXCEPTION((AE_INFO, status, - "Unable to queue handler for GPE[0x%2X] - event disabled", + "Unable to queue handler for GPE%2X - event disabled", gpe_number)); } break; @@ -733,7 +738,7 @@ acpi_ev_gpe_dispatch(struct acpi_namespace_node *gpe_device, * a GPE to be enabled if it has no handler or method. */ ACPI_ERROR((AE_INFO, - "No handler or method for GPE[0x%2X], disabling event", + "No handler or method for GPE%02X, disabling event", gpe_number)); break; |