|
@@ -318,7 +318,7 @@ static void pci_device_shutdown(struct device *dev)
|
|
|
* Default "suspend" method for devices that have no driver provided suspend,
|
|
|
* or not even a driver at all (second part).
|
|
|
*/
|
|
|
-static void pci_default_pm_suspend_late(struct pci_dev *pci_dev)
|
|
|
+static void pci_pm_set_unknown_state(struct pci_dev *pci_dev)
|
|
|
{
|
|
|
/*
|
|
|
* mark its power state as "unknown", since we don't know if
|
|
@@ -332,7 +332,7 @@ static void pci_default_pm_suspend_late(struct pci_dev *pci_dev)
|
|
|
* Default "resume" method for devices that have no driver provided resume,
|
|
|
* or not even a driver at all (second part).
|
|
|
*/
|
|
|
-static int pci_default_pm_resume_late(struct pci_dev *pci_dev)
|
|
|
+static int pci_pm_reenable_device(struct pci_dev *pci_dev)
|
|
|
{
|
|
|
int retval;
|
|
|
|
|
@@ -363,7 +363,7 @@ static int pci_legacy_suspend(struct device *dev, pm_message_t state)
|
|
|
* This is for compatibility with existing code with legacy PM
|
|
|
* support.
|
|
|
*/
|
|
|
- pci_default_pm_suspend_late(pci_dev);
|
|
|
+ pci_pm_set_unknown_state(pci_dev);
|
|
|
}
|
|
|
return i;
|
|
|
}
|
|
@@ -392,7 +392,7 @@ static int pci_legacy_resume(struct device *dev)
|
|
|
} else {
|
|
|
/* restore the PCI config space */
|
|
|
pci_restore_state(pci_dev);
|
|
|
- error = pci_default_pm_resume_late(pci_dev);
|
|
|
+ error = pci_pm_reenable_device(pci_dev);
|
|
|
}
|
|
|
return error;
|
|
|
}
|
|
@@ -459,7 +459,7 @@ static int pci_pm_default_resume(struct pci_dev *pci_dev)
|
|
|
if (!pci_is_bridge(pci_dev))
|
|
|
pci_enable_wake(pci_dev, PCI_D0, false);
|
|
|
|
|
|
- return pci_default_pm_resume_late(pci_dev);
|
|
|
+ return pci_pm_reenable_device(pci_dev);
|
|
|
}
|
|
|
|
|
|
static void pci_pm_default_suspend_generic(struct pci_dev *pci_dev)
|
|
@@ -484,9 +484,17 @@ static void pci_pm_default_suspend(struct pci_dev *pci_dev)
|
|
|
static bool pci_has_legacy_pm_support(struct pci_dev *pci_dev)
|
|
|
{
|
|
|
struct pci_driver *drv = pci_dev->driver;
|
|
|
-
|
|
|
- return drv && (drv->suspend || drv->suspend_late || drv->resume
|
|
|
+ bool ret = drv && (drv->suspend || drv->suspend_late || drv->resume
|
|
|
|| drv->resume_early);
|
|
|
+
|
|
|
+ /*
|
|
|
+ * Legacy PM support is used by default, so warn if the new framework is
|
|
|
+ * supported as well. Drivers are supposed to support either the
|
|
|
+ * former, or the latter, but not both at the same time.
|
|
|
+ */
|
|
|
+ WARN_ON(ret && drv->driver.pm);
|
|
|
+
|
|
|
+ return ret;
|
|
|
}
|
|
|
|
|
|
/* New power management framework */
|
|
@@ -518,17 +526,21 @@ static int pci_pm_suspend(struct device *dev)
|
|
|
struct device_driver *drv = dev->driver;
|
|
|
int error = 0;
|
|
|
|
|
|
+ if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
+ error = pci_legacy_suspend(dev, PMSG_SUSPEND);
|
|
|
+ goto Exit;
|
|
|
+ }
|
|
|
+
|
|
|
if (drv && drv->pm) {
|
|
|
if (drv->pm->suspend) {
|
|
|
error = drv->pm->suspend(dev);
|
|
|
suspend_report_result(drv->pm->suspend, error);
|
|
|
}
|
|
|
- } else if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
- error = pci_legacy_suspend(dev, PMSG_SUSPEND);
|
|
|
} else {
|
|
|
pci_pm_default_suspend(pci_dev);
|
|
|
}
|
|
|
|
|
|
+ Exit:
|
|
|
pci_fixup_device(pci_fixup_suspend, pci_dev);
|
|
|
|
|
|
return error;
|
|
@@ -540,15 +552,16 @@ static int pci_pm_suspend_noirq(struct device *dev)
|
|
|
struct device_driver *drv = dev->driver;
|
|
|
int error = 0;
|
|
|
|
|
|
+ if (pci_has_legacy_pm_support(pci_dev))
|
|
|
+ return pci_legacy_suspend_late(dev, PMSG_SUSPEND);
|
|
|
+
|
|
|
if (drv && drv->pm) {
|
|
|
if (drv->pm->suspend_noirq) {
|
|
|
error = drv->pm->suspend_noirq(dev);
|
|
|
suspend_report_result(drv->pm->suspend_noirq, error);
|
|
|
}
|
|
|
- } else if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
- error = pci_legacy_suspend_late(dev, PMSG_SUSPEND);
|
|
|
} else {
|
|
|
- pci_default_pm_suspend_late(pci_dev);
|
|
|
+ pci_pm_set_unknown_state(pci_dev);
|
|
|
}
|
|
|
|
|
|
return error;
|
|
@@ -560,14 +573,16 @@ static int pci_pm_resume(struct device *dev)
|
|
|
struct device_driver *drv = dev->driver;
|
|
|
int error = 0;
|
|
|
|
|
|
+ if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
+ pci_fixup_device(pci_fixup_resume, pci_dev);
|
|
|
+ return pci_legacy_resume(dev);
|
|
|
+ }
|
|
|
+
|
|
|
if (drv && drv->pm) {
|
|
|
pci_fixup_device(pci_fixup_resume, pci_dev);
|
|
|
|
|
|
if (drv->pm->resume)
|
|
|
error = drv->pm->resume(dev);
|
|
|
- } else if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
- pci_fixup_device(pci_fixup_resume, pci_dev);
|
|
|
- error = pci_legacy_resume(dev);
|
|
|
} else {
|
|
|
error = pci_pm_default_resume(pci_dev);
|
|
|
}
|
|
@@ -581,14 +596,16 @@ static int pci_pm_resume_noirq(struct device *dev)
|
|
|
struct device_driver *drv = dev->driver;
|
|
|
int error = 0;
|
|
|
|
|
|
+ if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
+ pci_fixup_device(pci_fixup_resume_early, pci_dev);
|
|
|
+ return pci_legacy_resume_early(dev);
|
|
|
+ }
|
|
|
+
|
|
|
if (drv && drv->pm) {
|
|
|
pci_fixup_device(pci_fixup_resume_early, pci_dev);
|
|
|
|
|
|
if (drv->pm->resume_noirq)
|
|
|
error = drv->pm->resume_noirq(dev);
|
|
|
- } else if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
- pci_fixup_device(pci_fixup_resume_early, pci_dev);
|
|
|
- error = pci_legacy_resume_early(dev);
|
|
|
} else {
|
|
|
pci_pm_default_resume_noirq(pci_dev);
|
|
|
}
|
|
@@ -613,14 +630,17 @@ static int pci_pm_freeze(struct device *dev)
|
|
|
struct device_driver *drv = dev->driver;
|
|
|
int error = 0;
|
|
|
|
|
|
+ if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
+ error = pci_legacy_suspend(dev, PMSG_FREEZE);
|
|
|
+ pci_fixup_device(pci_fixup_suspend, pci_dev);
|
|
|
+ return error;
|
|
|
+ }
|
|
|
+
|
|
|
if (drv && drv->pm) {
|
|
|
if (drv->pm->freeze) {
|
|
|
error = drv->pm->freeze(dev);
|
|
|
suspend_report_result(drv->pm->freeze, error);
|
|
|
}
|
|
|
- } else if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
- error = pci_legacy_suspend(dev, PMSG_FREEZE);
|
|
|
- pci_fixup_device(pci_fixup_suspend, pci_dev);
|
|
|
} else {
|
|
|
pci_pm_default_suspend_generic(pci_dev);
|
|
|
}
|
|
@@ -634,15 +654,16 @@ static int pci_pm_freeze_noirq(struct device *dev)
|
|
|
struct device_driver *drv = dev->driver;
|
|
|
int error = 0;
|
|
|
|
|
|
+ if (pci_has_legacy_pm_support(pci_dev))
|
|
|
+ return pci_legacy_suspend_late(dev, PMSG_FREEZE);
|
|
|
+
|
|
|
if (drv && drv->pm) {
|
|
|
if (drv->pm->freeze_noirq) {
|
|
|
error = drv->pm->freeze_noirq(dev);
|
|
|
suspend_report_result(drv->pm->freeze_noirq, error);
|
|
|
}
|
|
|
- } else if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
- error = pci_legacy_suspend_late(dev, PMSG_FREEZE);
|
|
|
} else {
|
|
|
- pci_default_pm_suspend_late(pci_dev);
|
|
|
+ pci_pm_set_unknown_state(pci_dev);
|
|
|
}
|
|
|
|
|
|
return error;
|
|
@@ -654,14 +675,16 @@ static int pci_pm_thaw(struct device *dev)
|
|
|
struct device_driver *drv = dev->driver;
|
|
|
int error = 0;
|
|
|
|
|
|
+ if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
+ pci_fixup_device(pci_fixup_resume, pci_dev);
|
|
|
+ return pci_legacy_resume(dev);
|
|
|
+ }
|
|
|
+
|
|
|
if (drv && drv->pm) {
|
|
|
if (drv->pm->thaw)
|
|
|
error = drv->pm->thaw(dev);
|
|
|
- } else if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
- pci_fixup_device(pci_fixup_resume, pci_dev);
|
|
|
- error = pci_legacy_resume(dev);
|
|
|
} else {
|
|
|
- pci_default_pm_resume_late(pci_dev);
|
|
|
+ pci_pm_reenable_device(pci_dev);
|
|
|
}
|
|
|
|
|
|
return error;
|
|
@@ -673,12 +696,14 @@ static int pci_pm_thaw_noirq(struct device *dev)
|
|
|
struct device_driver *drv = dev->driver;
|
|
|
int error = 0;
|
|
|
|
|
|
+ if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
+ pci_fixup_device(pci_fixup_resume_early, to_pci_dev(dev));
|
|
|
+ return pci_legacy_resume_early(dev);
|
|
|
+ }
|
|
|
+
|
|
|
if (drv && drv->pm) {
|
|
|
if (drv->pm->thaw_noirq)
|
|
|
error = drv->pm->thaw_noirq(dev);
|
|
|
- } else if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
- pci_fixup_device(pci_fixup_resume_early, to_pci_dev(dev));
|
|
|
- error = pci_legacy_resume_early(dev);
|
|
|
} else {
|
|
|
pci_update_current_state(pci_dev, PCI_D0);
|
|
|
}
|
|
@@ -692,17 +717,21 @@ static int pci_pm_poweroff(struct device *dev)
|
|
|
struct device_driver *drv = dev->driver;
|
|
|
int error = 0;
|
|
|
|
|
|
+ if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
+ error = pci_legacy_suspend(dev, PMSG_HIBERNATE);
|
|
|
+ goto Exit;
|
|
|
+ }
|
|
|
+
|
|
|
if (drv && drv->pm) {
|
|
|
if (drv->pm->poweroff) {
|
|
|
error = drv->pm->poweroff(dev);
|
|
|
suspend_report_result(drv->pm->poweroff, error);
|
|
|
}
|
|
|
- } else if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
- error = pci_legacy_suspend(dev, PMSG_HIBERNATE);
|
|
|
} else {
|
|
|
pci_pm_default_suspend(pci_dev);
|
|
|
}
|
|
|
|
|
|
+ Exit:
|
|
|
pci_fixup_device(pci_fixup_suspend, pci_dev);
|
|
|
|
|
|
return error;
|
|
@@ -713,13 +742,14 @@ static int pci_pm_poweroff_noirq(struct device *dev)
|
|
|
struct device_driver *drv = dev->driver;
|
|
|
int error = 0;
|
|
|
|
|
|
+ if (pci_has_legacy_pm_support(to_pci_dev(dev)))
|
|
|
+ return pci_legacy_suspend_late(dev, PMSG_HIBERNATE);
|
|
|
+
|
|
|
if (drv && drv->pm) {
|
|
|
if (drv->pm->poweroff_noirq) {
|
|
|
error = drv->pm->poweroff_noirq(dev);
|
|
|
suspend_report_result(drv->pm->poweroff_noirq, error);
|
|
|
}
|
|
|
- } else if (pci_has_legacy_pm_support(to_pci_dev(dev))) {
|
|
|
- error = pci_legacy_suspend_late(dev, PMSG_HIBERNATE);
|
|
|
}
|
|
|
|
|
|
return error;
|
|
@@ -731,14 +761,16 @@ static int pci_pm_restore(struct device *dev)
|
|
|
struct device_driver *drv = dev->driver;
|
|
|
int error = 0;
|
|
|
|
|
|
+ if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
+ pci_fixup_device(pci_fixup_resume, pci_dev);
|
|
|
+ return pci_legacy_resume(dev);
|
|
|
+ }
|
|
|
+
|
|
|
if (drv && drv->pm) {
|
|
|
pci_fixup_device(pci_fixup_resume, pci_dev);
|
|
|
|
|
|
if (drv->pm->restore)
|
|
|
error = drv->pm->restore(dev);
|
|
|
- } else if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
- pci_fixup_device(pci_fixup_resume, pci_dev);
|
|
|
- error = pci_legacy_resume(dev);
|
|
|
} else {
|
|
|
error = pci_pm_default_resume(pci_dev);
|
|
|
}
|
|
@@ -752,14 +784,16 @@ static int pci_pm_restore_noirq(struct device *dev)
|
|
|
struct device_driver *drv = dev->driver;
|
|
|
int error = 0;
|
|
|
|
|
|
+ if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
+ pci_fixup_device(pci_fixup_resume_early, pci_dev);
|
|
|
+ return pci_legacy_resume_early(dev);
|
|
|
+ }
|
|
|
+
|
|
|
if (drv && drv->pm) {
|
|
|
pci_fixup_device(pci_fixup_resume_early, pci_dev);
|
|
|
|
|
|
if (drv->pm->restore_noirq)
|
|
|
error = drv->pm->restore_noirq(dev);
|
|
|
- } else if (pci_has_legacy_pm_support(pci_dev)) {
|
|
|
- pci_fixup_device(pci_fixup_resume_early, pci_dev);
|
|
|
- error = pci_legacy_resume_early(dev);
|
|
|
} else {
|
|
|
pci_pm_default_resume_noirq(pci_dev);
|
|
|
}
|