USB: automatically enable wakeup for PCI host controllers

[linux-2.6-omap-h63xx.git] / drivers / usb / host / ehci-pci.c

diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 6af47a0937b85659bab53cb156978d93bd857ca0..bdc6e86e1f8b0aed2a6d505f618ed1bdd0a43b50 100644 (file)
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -219,15 +219,19 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
        /* Serial Bus Release Number is at PCI 0x60 offset */
        pci_read_config_byte(pdev, 0x60, &ehci->sbrn);
 
-       /* Workaround current PCI init glitch:  wakeup bits aren't
-        * being set from PCI PM capability.
+       /* Keep this around for a while just in case some EHCI
+        * implementation uses legacy PCI PM support.  This test
+        * can be removed on 17 Dec 2009 if the dev_warn() hasn't
+        * been triggered by then.
         */
        if (!device_can_wakeup(&pdev->dev)) {
                u16     port_wake;
 
                pci_read_config_word(pdev, 0x62, &port_wake);
-               if (port_wake & 0x0001)
+               if (port_wake & 0x0001) {
+                       dev_warn(&pdev->dev, "Enabling legacy PCI PM\n");
                        device_init_wakeup(&pdev->dev, 1);
+               }
        }
 
 #ifdef CONFIG_USB_SUSPEND