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| author |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-01-03 01:38:27 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-01-09 13:09:17 +0100 |
| commit | 877b3729ca03b00800b99ac0c076e9456ef3ae6b (patch) | |
| tree | 5635d56757907390ac0659b441d6c116632ec062 /drivers/pci | |
| parent | PM / wakeup: Add device_set_wakeup_path() helper to control wakeup path (diff) | |
| download | linux-dev-877b3729ca03b00800b99ac0c076e9456ef3ae6b.tar.xz linux-dev-877b3729ca03b00800b99ac0c076e9456ef3ae6b.zip | |
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 <rafael.j.wysocki@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pcie/portdrv_pci.c | 3 |
1 files changed, 3 insertions, 0 deletions
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 |