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| author | Daniel Ritz <daniel.ritz@gmx.ch> | 2005-08-17 15:32:19 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2005-09-08 15:04:30 -0700 |
| commit | 3fe9d19f9e86a55679f5f2b38ec0a43a1a510cee (patch) | |
| tree | 96a3e57f3b61c137bb8904a08779aa8ab41c2559 /drivers/pci/pci.c | |
| parent | cecf4864cf52a4a243a62b2856a6a155edbb55e8 (diff) | |
| download | lwn-3fe9d19f9e86a55679f5f2b38ec0a43a1a510cee.tar.gz lwn-3fe9d19f9e86a55679f5f2b38ec0a43a1a510cee.zip | |
[PATCH] PCI: Support PCM PM CAP version 3
- support PCI PM CAP version 3 (as defined in PCI PM Interface Spec v1.2)
- pci/probe.c sets the PM state initially to 4 which is D3cold. add a
PCI_UNKNOWN
- minor cleanups
Signed-off-by: Daniel Ritz <daniel.ritz@gmx.ch>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 3dcb83d7eb25..e179af3186f5 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -294,7 +294,7 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) return -EIO; pci_read_config_word(dev,pm + PCI_PM_PMC,&pmc); - if ((pmc & PCI_PM_CAP_VER_MASK) > 2) { + if ((pmc & PCI_PM_CAP_VER_MASK) > 3) { printk(KERN_DEBUG "PCI: %s has unsupported PM cap regs version (%u)\n", pci_name(dev), pmc & PCI_PM_CAP_VER_MASK); @@ -302,12 +302,10 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) } /* check if this device supports the desired state */ - if (state == PCI_D1 || state == PCI_D2) { - if (state == PCI_D1 && !(pmc & PCI_PM_CAP_D1)) - return -EIO; - else if (state == PCI_D2 && !(pmc & PCI_PM_CAP_D2)) - return -EIO; - } + if (state == PCI_D1 && !(pmc & PCI_PM_CAP_D1)) + return -EIO; + else if (state == PCI_D2 && !(pmc & PCI_PM_CAP_D2)) + return -EIO; pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr); |