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-rw-r--r--drivers/pci/pci.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 12fccc24925c..deb7fa9cc638 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -3332,6 +3332,13 @@ static void pci_dev_unlock(struct pci_dev *dev)
static void pci_dev_save_and_disable(struct pci_dev *dev)
{
+ /*
+ * Wake-up device prior to save. PM registers default to D0 after
+ * reset and a simple register restore doesn't reliably return
+ * to a non-D0 state anyway.
+ */
+ pci_set_power_state(dev, PCI_D0);
+
pci_save_state(dev);
/*
* Disable the device by clearing the Command register, except for