From 877b3729ca03b00800b99ac0c076e9456ef3ae6b Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 3 Jan 2018 01:38:27 +0100 Subject: [PATCH] PCI / PM: Use SMART_SUSPEND and LEAVE_SUSPENDED flags for PCIe ports 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 Acked-by: Bjorn Helgaas --- drivers/pci/pcie/portdrv_pci.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c index ffbf4e723527..fb1c1bb87316 100644 --- a/drivers/pci/pcie/portdrv_pci.c +++ b/drivers/pci/pcie/portdrv_pci.c @@ -150,6 +150,9 @@ static int pcie_portdrv_probe(struct pci_dev *dev, 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