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|
Experimental fixes for the interactions between runtime PM and ACPI power
resources. Needs some work with upstream.
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 310e3b9..371debe 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -329,7 +329,8 @@ int acpi_bus_set_power(acpi_handle handle, int state)
goto end;
}
}
- if (device->power.flags.power_resources) {
+ if (device->power.flags.power_resources &&
+ !device->wakeup.run_wake_count) {
result = acpi_power_transition(device, state);
if (result)
goto end;
diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
index 8b3cc6a..b013174 100644
--- a/drivers/acpi/pci_bind.c
+++ b/drivers/acpi/pci_bind.c
@@ -33,6 +33,8 @@
#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
+#include "internal.h"
+
#define _COMPONENT ACPI_PCI_COMPONENT
ACPI_MODULE_NAME("pci_bind");
@@ -173,6 +175,8 @@ static int acpi_pci_bind(struct acpi_device *device)
device->ops.unbind = acpi_pci_unbind;
}
+ acpi_power_transition(device, acpi_power_get_inferred_state(device));
+
/*
* Evaluate and parse _PRT, if exists. This code allows parsing of
* _PRT objects within the scope of non-bridge devices. Note that
diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c
index 844c155..8a42ddf 100644
--- a/drivers/acpi/power.c
+++ b/drivers/acpi/power.c
@@ -394,7 +394,7 @@ int acpi_enable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
* State Wake) for the device, if present
* 2. Shutdown down the power resources
*/
-int acpi_disable_wakeup_device_power(struct acpi_device *dev)
+int acpi_disable_wakeup_device_power(struct acpi_device *dev, int sleep_state)
{
int i, err = 0;
@@ -417,6 +417,9 @@ int acpi_disable_wakeup_device_power(struct acpi_device *dev)
if (err)
goto out;
+ if (sleep_state == ACPI_STATE_S0)
+ goto out;
+
/* Close power resource */
for (i = 0; i < dev->wakeup.resources.count; i++) {
int ret = acpi_power_off_device(
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 2c5cd02..6bf016b 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -670,7 +670,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
error = enable ?
acpi_enable_wakeup_device_power(adev, acpi_target_sleep_state) :
- acpi_disable_wakeup_device_power(adev);
+ acpi_disable_wakeup_device_power(adev, acpi_target_sleep_state);
if (!error)
dev_info(dev, "wake-up capability %s by ACPI\n",
enable ? "enabled" : "disabled");
diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c
index f62a50c..ff48a54 100644
--- a/drivers/acpi/wakeup.c
+++ b/drivers/acpi/wakeup.c
@@ -71,7 +71,7 @@ void acpi_disable_wakeup_devices(u8 sleep_state)
ACPI_GPE_DISABLE);
if (dev->wakeup.state.enabled)
- acpi_disable_wakeup_device_power(dev);
+ acpi_disable_wakeup_device_power(dev, sleep_state);
}
}
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index 24e19c5..cd99494 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -302,7 +302,7 @@ static int acpi_dev_run_wake(struct device *phys_dev, bool enable)
if (!--dev->wakeup.run_wake_count) {
acpi_disable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number);
- acpi_disable_wakeup_device_power(dev);
+ acpi_disable_wakeup_device_power(dev, ACPI_STATE_S0);
}
} else {
error = -EALREADY;
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 4de84ce..284f43c 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -387,7 +387,7 @@ struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)((dev)->archdata.acpi_handle))
int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
-int acpi_disable_wakeup_device_power(struct acpi_device *dev);
+int acpi_disable_wakeup_device_power(struct acpi_device *dev, int state);
#ifdef CONFIG_PM_OPS
int acpi_pm_device_sleep_state(struct device *, int *);
|
