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path: root/drivers/pci/pci.c
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-rw-r--r--drivers/pci/pci.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 111569c..f597a1a 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1743,6 +1743,11 @@ int pci_prepare_to_sleep(struct pci_dev *dev)
if (target_state == PCI_POWER_ERROR)
return -EIO;
+ /* Some devices mustn't be in D3 during system sleep */
+ if (target_state == PCI_D3hot &&
+ (dev->dev_flags & PCI_DEV_FLAGS_NO_D3_DURING_SLEEP))
+ return 0;
+
pci_enable_wake(dev, target_state, device_may_wakeup(&dev->dev));
error = pci_set_power_state(dev, target_state);