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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-10-12 14:38:34 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-10-12 14:38:34 -0700 |
| commit | 2caa731819a633bec5a56736e64c562b7e193666 (patch) | |
| tree | e93f5c50c33c7cf5a9cc3ea29dd1d868b4f14d5c /drivers/pci/pci.c | |
| parent | 589bf8d52b5bbb580962438ad9403ec6853bc12b (diff) | |
| parent | 30fc24b5cbc55f9e6c686e2710cc812419bddc0c (diff) | |
| download | talos-op-linux-2caa731819a633bec5a56736e64c562b7e193666.tar.gz talos-op-linux-2caa731819a633bec5a56736e64c562b7e193666.zip | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: Prevent AER driver from being loaded on non-root port PCIE devices
PCI: get larger bridge ranges when space is available
PCI: pci.c: fix kernel-doc notation
PCI quirk: TI XIO200a erroneously reports support for fast b2b transfers
PCI PM: Read device power state from register after updating it
PCI: remove pci_assign_resource_fixed()
PCI: PCIe portdrv: remove "-driver" from driver name
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 6edecff0b419..3835871f4832 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -513,7 +513,11 @@ static int pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state) else if (state == PCI_D2 || dev->current_state == PCI_D2) udelay(PCI_PM_D2_DELAY); - dev->current_state = state; + pci_read_config_word(dev, dev->pm_cap + PCI_PM_CTRL, &pmcsr); + dev->current_state = (pmcsr & PCI_PM_CTRL_STATE_MASK); + if (dev->current_state != state && printk_ratelimit()) + dev_info(&dev->dev, "Refused to change power state, " + "currently in D%d\n", dev->current_state); /* According to section 5.4.1 of the "PCI BUS POWER MANAGEMENT * INTERFACE SPECIFICATION, REV. 1.2", a device transitioning @@ -2542,10 +2546,10 @@ int pci_resource_bar(struct pci_dev *dev, int resno, enum pci_bar_type *type) /** * pci_set_vga_state - set VGA decode state on device and parents if requested - * @dev the PCI device - * @decode - true = enable decoding, false = disable decoding - * @command_bits PCI_COMMAND_IO and/or PCI_COMMAND_MEMORY - * @change_bridge - traverse ancestors and change bridges + * @dev: the PCI device + * @decode: true = enable decoding, false = disable decoding + * @command_bits: PCI_COMMAND_IO and/or PCI_COMMAND_MEMORY + * @change_bridge: traverse ancestors and change bridges */ int pci_set_vga_state(struct pci_dev *dev, bool decode, unsigned int command_bits, bool change_bridge) |
