ACPI / PM: Consolidate device wakeup settings code

Currently, there are two separate ways of handling device wakeup
settings in the ACPI core, depending on whether this is runtime
wakeup or system wakeup (from sleep states).  However, after the
previous commit eliminating the run_wake ACPI device wakeup flag,
there is no difference between the two any more at the ACPI level,
so they can be combined.

For this reason, introduce acpi_pm_set_device_wakeup() to replace both
acpi_pm_device_run_wake() and acpi_pm_device_sleep_wake() and make it
check the ACPI device object's wakeup.valid flag to determine whether
or not the device can be set up to generate wakeup signals.

Also notice that zpodd_enable/disable_run_wake() only call
device_set_run_wake() because acpi_pm_device_run_wake() called
device_run_wake(), which is not done by acpi_pm_set_device_wakeup(),
so drop the now redundant device_set_run_wake() calls from there.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>

1 files changed, 8 insertions, 31 deletions

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index ca0210213773..d2e985a4bac2 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -717,55 +717,32 @@ static int acpi_device_wakeup(struct acpi_device *adev, u32 target_state,
 }
 
 /**
- * acpi_pm_device_run_wake - Enable/disable remote wakeup for given device.
- * @dev: Device to enable/disable the platform to wake up.
+ * acpi_pm_set_device_wakeup - Enable/disable remote wakeup for given device.
+ * @dev: Device to enable/disable to generate wakeup events.
  * @enable: Whether to enable or disable the wakeup functionality.
  */
-int acpi_pm_device_run_wake(struct device *phys_dev, bool enable)
-{
-	struct acpi_device *adev;
-
-	if (!device_run_wake(phys_dev))
-		return -EINVAL;
-
-	adev = ACPI_COMPANION(phys_dev);
-	if (!adev) {
-		dev_dbg(phys_dev, "ACPI companion missing in %s!\n", __func__);
-		return -ENODEV;
-	}
-
-	return acpi_device_wakeup(adev, ACPI_STATE_S0, enable);
-}
-EXPORT_SYMBOL(acpi_pm_device_run_wake);
-
-#ifdef CONFIG_PM_SLEEP
-/**
- * acpi_pm_device_sleep_wake - Enable or disable device to wake up the system.
- * @dev: Device to enable/desible to wake up the system from sleep states.
- * @enable: Whether to enable or disable @dev to wake up the system.
- */
-int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
+int acpi_pm_set_device_wakeup(struct device *dev, bool enable)
 {
 	struct acpi_device *adev;
 	int error;
 
-	if (!device_can_wakeup(dev))
-		return -EINVAL;
-
 	adev = ACPI_COMPANION(dev);
 	if (!adev) {
 		dev_dbg(dev, "ACPI companion missing in %s!\n", __func__);
 		return -ENODEV;
 	}
 
+	if (!acpi_device_can_wakeup(adev))
+		return -EINVAL;
+
 	error = acpi_device_wakeup(adev, acpi_target_system_state(), enable);
 	if (!error)
-		dev_dbg(dev, "System wakeup %s by ACPI\n",
+		dev_dbg(dev, "Wakeup %s by ACPI\n",
 			enable ? "enabled" : "disabled");
 
 	return error;
 }
-#endif /* CONFIG_PM_SLEEP */
+EXPORT_SYMBOL(acpi_pm_set_device_wakeup);
 
 /**
  * acpi_dev_pm_low_power - Put ACPI device into a low-power state.