From: Rafael J. Wysocki <rafael.j.wyso...@intel.com> Make the PCIe port driver set DPM_FLAG_SMART_SUSPEND and DPM_FLAG_LEAVE_SUSPENDED for the devices handled by it to benefit from the opportunistic optimizations in the PCI layer enabled by these flags.
Signed-off-by: Rafael J. Wysocki <rafael.j.wyso...@intel.com> --- drivers/pci/pcie/portdrv_pci.c | 3 +++ 1 file changed, 3 insertions(+) Index: linux-pm/drivers/pci/pcie/portdrv_pci.c =================================================================== --- linux-pm.orig/drivers/pci/pcie/portdrv_pci.c +++ linux-pm/drivers/pci/pcie/portdrv_pci.c @@ -150,6 +150,9 @@ static int pcie_portdrv_probe(struct pci pci_save_state(dev); + dev_pm_set_driver_flags(&dev->dev, DPM_FLAG_SMART_SUSPEND | + DPM_FLAG_LEAVE_SUSPENDED); + if (pci_bridge_d3_possible(dev)) { /* * Keep the port resumed 100ms to make sure things like