From: Rafael J. Wysocki <rjw@xxxxxxx>
Use the observation that the power state of a PCI device can be
loaded into its pci_dev structure as soon as pci_pm_init() is run for
it and make that happen.
Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxxx>
---
drivers/pci/pci.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
Index: linux-2.6/drivers/pci/pci.c
===================================================================
--- linux-2.6.orig/drivers/pci/pci.c
+++ linux-2.6/drivers/pci/pci.c
@@ -1260,14 +1260,15 @@ void pci_pm_init(struct pci_dev *dev)
/* find PCI PM capability in list */
pm = pci_find_capability(dev, PCI_CAP_ID_PM);
if (!pm)
- return;
+ goto Exit;
+
/* Check device's ability to generate PME# */
pci_read_config_word(dev, pm + PCI_PM_PMC, &pmc);
if ((pmc & PCI_PM_CAP_VER_MASK) > 3) {
dev_err(&dev->dev, "unsupported PM cap regs version (%u)\n",
pmc & PCI_PM_CAP_VER_MASK);
- return;
+ goto Exit;
}
dev->pm_cap = pm;
@@ -1306,6 +1307,9 @@ void pci_pm_init(struct pci_dev *dev)
} else {
dev->pme_support = 0;
}
+
+ Exit:
+ pci_update_current_state(dev, PCI_D0);
}
/**
--
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