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Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 4a1b1f76dc92..e6fcf11f5dcc 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -793,6 +793,11 @@ static inline bool platform_pci_need_resume(struct pci_dev *dev) return pci_platform_pm ? pci_platform_pm->need_resume(dev) : false; } +static inline bool platform_pci_bridge_d3(struct pci_dev *dev) +{ + return pci_platform_pm ? pci_platform_pm->bridge_d3(dev) : false; +} + /** * pci_raw_set_power_state - Use PCI PM registers to set the power state of * given PCI device @@ -2518,6 +2523,10 @@ bool pci_bridge_d3_possible(struct pci_dev *bridge) if (bridge->is_thunderbolt) return true; + /* Platform might know better if the bridge supports D3 */ + if (platform_pci_bridge_d3(bridge)) + return true; + /* * Hotplug ports handled natively by the OS were not validated * by vendors for runtime D3 at least until 2018 because there |