The UHCI controllers in Intel chipsets rely on a platform-specific non-PME mechanism for wakeup signalling. They can generate wakeup signals even though they don't support PME. We need to let the USB core know this so that it will enable runtime suspend for UHCI controllers. Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> CC: <stable@xxxxxxxxxxxxxxx> --- Greg: This patch is somewhat independent of the 1/2 patch I sent to Bjorn. Still, it will help to keep them together. Is it okay to have him merge both of them through his tree? Alan Stern [as1815] drivers/usb/host/uhci-pci.c | 4 ++++ 1 file changed, 4 insertions(+) Index: usb-4.x/drivers/usb/host/uhci-pci.c =================================================================== --- usb-4.x.orig/drivers/usb/host/uhci-pci.c +++ usb-4.x/drivers/usb/host/uhci-pci.c @@ -129,6 +129,10 @@ static int uhci_pci_init(struct usb_hcd if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_HP) uhci->wait_for_hp = 1; + /* Intel controllers use non-PME wakeup signalling */ + if (to_pci_dev(uhci_dev(uhci))->vendor == PCI_VENDOR_ID_INTEL) + device_set_run_wake(uhci_dev(uhci), 1); + /* Set up pointers to PCI-specific functions */ uhci->reset_hc = uhci_pci_reset_hc; uhci->check_and_reset_hc = uhci_pci_check_and_reset_hc; -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
