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| author | Jeff Garzik <jgarzik@pobox.com> | 2005-09-23 19:03:21 -0400 |
|---|---|---|
| committer | Jeff Garzik <jgarzik@pobox.com> | 2005-09-23 19:03:21 -0400 |
| commit | 536f8098026bde1368bbfcbcb9682a7637b73df2 (patch) | |
| tree | cf83d2e1afa503b6aeba103b55cd1da0af4e7a4c /drivers/pci/pci.c | |
| parent | e86ee6682b649183c11013a98be02f25e9ae399d (diff) | |
| parent | 3fd07d3bf0077dcc0f5a33d2eb1938ea050da8da (diff) | |
Merge /spare/repo/linux-2.6/
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 992db89adce..259d247b755 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -309,17 +309,25 @@ pci_set_power_state(struct pci_dev *dev, pci_power_t state) pci_read_config_word(dev, pm + PCI_PM_CTRL, &pmcsr); - /* If we're in D3, force entire word to 0. + /* If we're (effectively) in D3, force entire word to 0. * This doesn't affect PME_Status, disables PME_En, and * sets PowerState to 0. */ - if (dev->current_state >= PCI_D3hot) { - if (!(pmcsr & PCI_PM_CTRL_NO_SOFT_RESET)) + switch (dev->current_state) { + case PCI_UNKNOWN: /* Boot-up */ + if ((pmcsr & PCI_PM_CTRL_STATE_MASK) == PCI_D3hot + && !(pmcsr & PCI_PM_CTRL_NO_SOFT_RESET)) need_restore = 1; + /* Fall-through: force to D0 */ + case PCI_D3hot: + case PCI_D3cold: + case PCI_POWER_ERROR: pmcsr = 0; - } else { + break; + default: pmcsr &= ~PCI_PM_CTRL_STATE_MASK; pmcsr |= state; + break; } /* enter specified state */ |