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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-04-10 10:32:51 +0000 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2013-04-15 14:15:44 -0600 |
| commit | ffaddbe8f925a4f41eecb31e7fe69a9bdb6e2e59 (patch) | |
| tree | 0ed3a91e7ffc698748a8326894ea250d027f8fff /drivers/pci | |
| parent | 769ba7212f2059ca9fe0c73371e3d415c8c1c529 (diff) | |
| download | lwn-ffaddbe8f925a4f41eecb31e7fe69a9bdb6e2e59.tar.gz lwn-ffaddbe8f925a4f41eecb31e7fe69a9bdb6e2e59.zip | |
PCI/PM: Make pci_pme_active() ignore devices without PME support
Make pci_pme_active() ignore devices without PME support, so that
it doesn't print the "PME enabled" or "PME disabled" debug messages
for devices that don't support PME.
So that pci_pme_active() doesn't have to check pm_cap in addition
to pme_support, make pci_pm_init() clear pme_support upfront to
make sure that it will be 0 for pm_cap equal to 0.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pci.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index fc9bd81e8e3b..a5e0e5f4953c 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1571,7 +1571,7 @@ void pci_pme_active(struct pci_dev *dev, bool enable) { u16 pmcsr; - if (!dev->pm_cap) + if (!dev->pme_support) return; pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr); @@ -1920,6 +1920,7 @@ void pci_pm_init(struct pci_dev *dev) dev->wakeup_prepared = false; dev->pm_cap = 0; + dev->pme_support = 0; /* find PCI PM capability in list */ pm = pci_find_capability(dev, PCI_CAP_ID_PM); @@ -1971,8 +1972,6 @@ void pci_pm_init(struct pci_dev *dev) device_set_wakeup_capable(&dev->dev, true); /* Disable the PME# generation functionality */ pci_pme_active(dev, false); - } else { - dev->pme_support = 0; } } |