diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-09-25 02:33:13 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2017-09-28 03:22:36 +0300 |
| commit | 1cb31d3fd4d96b19624328da0a0496adf76f98a6 (patch) | |
| tree | ae187eb6b479ef7679ff04e561999f9103e1eaaf /drivers | |
| parent | e19b205be43d11bff638cad4487008c48d21c103 (diff) | |
| download | linux-1cb31d3fd4d96b19624328da0a0496adf76f98a6.tar.xz | |
PCI / PM: Do not resume any devices in pci_pm_prepare()
It should not be necessary to resume devices with ignore_children set
in pci_pm_prepare(), because they should be resumed explicitly by
their children drivers during suspend if need be and they will be
resumed by pci_pm_suspend() after that anyway, so avoid doing that.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/pci/pci-driver.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c index 11bd267fc137..3d04b59ffdb2 100644 --- a/drivers/pci/pci-driver.c +++ b/drivers/pci/pci-driver.c @@ -680,13 +680,6 @@ static int pci_pm_prepare(struct device *dev) { struct device_driver *drv = dev->driver; - /* - * Devices having power.ignore_children set may still be necessary for - * suspending their children in the next phase of device suspend. - */ - if (dev->power.ignore_children) - pm_runtime_resume(dev); - if (drv && drv->pm && drv->pm->prepare) { int error = drv->pm->prepare(dev); if (error) |