diff options
| -rw-r--r-- | drivers/pci/pci.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 8abc843b1615..324175509e94 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -2474,10 +2474,20 @@ bool pci_dev_keep_suspended(struct pci_dev *pci_dev) { struct device *dev = &pci_dev->dev; bool wakeup = device_may_wakeup(dev); + pci_power_t target_state; + + if (!pm_runtime_suspended(dev) || platform_pci_need_resume(pci_dev)) + return false; - if (!pm_runtime_suspended(dev) - || pci_target_state(pci_dev, wakeup) != pci_dev->current_state - || platform_pci_need_resume(pci_dev)) + target_state = pci_target_state(pci_dev, wakeup); + + /* + * If the earlier platform check has not triggered, D3cold is just power + * removal on top of D3hot, so no need to resume the device in that + * case. + */ + if (target_state != pci_dev->current_state && + target_state != PCI_D3cold && pci_dev->current_state != PCI_D3hot) return false; /* |