Merge master.kernel.org:/home/rmk/linux-2.6-arm

[safe/jmp/linux-2.6] / drivers / pci / pci-acpi.c

diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index fac5edd..33317df 100644 (file)
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -109,15 +109,32 @@ static bool acpi_pci_can_wakeup(struct pci_dev *dev)
        return handle ? acpi_bus_can_wakeup(handle) : false;
 }
 
+static void acpi_pci_propagate_wakeup_enable(struct pci_bus *bus, bool enable)
+{
+       while (bus->parent) {
+               struct pci_dev *bridge = bus->self;
+               int ret;
+
+               ret = acpi_pm_device_sleep_wake(&bridge->dev, enable);
+               if (!ret || bridge->is_pcie)
+                       return;
+               bus = bus->parent;
+       }
+
+       /* We have reached the root bus. */
+       if (bus->bridge)
+               acpi_pm_device_sleep_wake(bus->bridge, enable);
+}
+
 static int acpi_pci_sleep_wake(struct pci_dev *dev, bool enable)
 {
-       int error = acpi_pm_device_sleep_wake(&dev->dev, enable);
+       if (acpi_pci_can_wakeup(dev))
+               return acpi_pm_device_sleep_wake(&dev->dev, enable);
 
-       if (!error)
-               dev_printk(KERN_INFO, &dev->dev,
-                               "wake-up capability %s by ACPI\n",
-                               enable ? "enabled" : "disabled");
-       return error;
+       if (!dev->is_pcie)
+               acpi_pci_propagate_wakeup_enable(dev->bus, enable);
+
+       return 0;
 }
 
 static struct pci_platform_pm_ops acpi_pci_platform_pm = {
@@ -171,12 +188,12 @@ static int __init acpi_pci_init(void)
 {
        int ret;
 
-       if (acpi_gbl_FADT.boot_flags & BAF_MSI_NOT_SUPPORTED) {
+       if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_MSI) {
                printk(KERN_INFO"ACPI FADT declares the system doesn't support MSI, so disable it\n");
                pci_no_msi();
        }
 
-       if (acpi_gbl_FADT.boot_flags & BAF_PCIE_ASPM_CONTROL) {
+       if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) {
                printk(KERN_INFO"ACPI FADT declares the system doesn't support PCIe ASPM, so disable it\n");
                pcie_no_aspm();
        }