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ACPI / PM: Clean up device wakeup enable/disable code

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The wakeup.flags.enabled flag in struct acpi_device is not used
consistently, as there is no reason why it should only apply
to the enabling/disabling of the wakeup GPE, so put the invocation
of acpi_enable_wakeup_device_power() under it too.

Moreover, it is not necessary to call
acpi_enable_wakeup_devices() and acpi_disable_wakeup_devices() for
suspend-to-idle, so don't do that.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Rafael J. Wysocki 2017-06-12 22:51:07 +02:00
parent 190cab8471
commit 235d81a630
2 changed files with 10 additions and 13 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

19
drivers/acpi/device_pm.c
View file

@ -688,26 +688,23 @@ static int acpi_device_wakeup(struct acpi_device *adev, u32 target_state,
acpi_status res;
int error;
if (adev->wakeup.flags.enabled)
return 0;
error = acpi_enable_wakeup_device_power(adev, target_state);
if (error)
return error;
if (adev->wakeup.flags.enabled)
return 0;
res = acpi_enable_gpe(wakeup->gpe_device, wakeup->gpe_number);
if (ACPI_SUCCESS(res)) {
adev->wakeup.flags.enabled = 1;
} else {
if (ACPI_FAILURE(res)) {
acpi_disable_wakeup_device_power(adev);
return -EIO;
}
} else {
if (adev->wakeup.flags.enabled) {
acpi_disable_gpe(wakeup->gpe_device, wakeup->gpe_number);
adev->wakeup.flags.enabled = 0;
}
adev->wakeup.flags.enabled = 1;
} else if (adev->wakeup.flags.enabled) {
acpi_disable_gpe(wakeup->gpe_device, wakeup->gpe_number);
acpi_disable_wakeup_device_power(adev);
adev->wakeup.flags.enabled = 0;
}
return 0;
}

4
drivers/acpi/sleep.c
View file

@ -658,19 +658,19 @@ static int acpi_freeze_begin(void)
static int acpi_freeze_prepare(void)
{
acpi_enable_wakeup_devices(ACPI_STATE_S0);
acpi_enable_all_wakeup_gpes();
acpi_os_wait_events_complete();
if (acpi_sci_irq_valid())
enable_irq_wake(acpi_sci_irq);
return 0;
}
static void acpi_freeze_restore(void)
{
acpi_disable_wakeup_devices(ACPI_STATE_S0);
if (acpi_sci_irq_valid())
disable_irq_wake(acpi_sci_irq);
acpi_enable_all_runtime_gpes();
}