[RFC][PATCH 4/6] PCI PM: update pci_enable_wake()

[RFC][PATCH 4/6] PCI PM: update pci_enable_wake()

[Adam Belay]

This patch updates pci_enable_wake() to use "struct pci_dev_pm".


--- a/drivers/pci/pm.c	2005-11-07 08:18:18.000000000 -0500
+++ b/drivers/pci/pm.c	2005-11-07 08:17:21.000000000 -0500
@@ -247,28 +247,19 @@
  */
 int pci_enable_wake(struct pci_dev *dev, pci_power_t state, int enable)
 {
-	int pm;
 	u16 value;
-
-	/* find PCI PM capability in list */
-	pm = pci_find_capability(dev, PCI_CAP_ID_PM);
+	struct pci_dev_pm *data = dev->pm;
 
 	/* If device doesn't support PM Capabilities, but request is to disable
 	 * wake events, it's a nop; otherwise fail */
-	if (!pm) 
+	if (!data) 
 		return enable ? -EIO : 0; 
 
-	/* Check device's ability to generate PME# */
-	pci_read_config_word(dev,pm+PCI_PM_PMC,&value);
-
-	value &= PCI_PM_CAP_PME_MASK;
-	value >>= ffs(PCI_PM_CAP_PME_MASK) - 1;   /* First bit of mask */
-
 	/* Check if it can generate PME# from requested state. */
-	if (!value || !(value & (1 << state))) 
+	if (!data->pme_mask || !(data->pme_mask & (1 << state)))
 		return enable ? -EINVAL : 0;
 
-	pci_read_config_word(dev, pm + PCI_PM_CTRL, &value);
+	pci_read_config_word(dev, data->pm_offset + PCI_PM_CTRL, &value);
 
 	/* Clear PME_Status by writing 1 to it and enable PME# */
 	value |= PCI_PM_CTRL_PME_STATUS | PCI_PM_CTRL_PME_ENABLE;
@@ -276,7 +267,7 @@
 	if (!enable)
 		value &= ~PCI_PM_CTRL_PME_ENABLE;
 
-	pci_write_config_word(dev, pm + PCI_PM_CTRL, value);
+	pci_write_config_word(dev, data->pm_offset + PCI_PM_CTRL, value);
 	
 	return 0;
 }