Hi Sarah, Alan, The following patches are required to resolve remote wake issues with certain devices.
Issue description: If the remote wake is issued from the device in a specific timing condition while the system is entering sleep state then it may cause system to auto wake on subsequent sleep cycle. Root Cause: Host controller rebroadcasts the Resume signal > 100 µseconds after receiving the original resume event from the device. For proper function, some devices may require the rebroadcast of resume event within the USB spec of 100µS. Without this quirk, some AMD platform doesn't hold the resume right away when there is a resume signal from LS device like mouse. So it should reset the port which attached with mouse. Patch 1 is the implementation for xHCI driver. Patch 2 is the implementation for OHCI driver. They are generated on gregkh/usb usb-next. Thanks, Rui Huang Rui (2): usb: xhci: implement AMD remote wakeup quirk usb: ohci: add AMD remote wakeup quirk into ohci driver drivers/usb/core/hub.c | 28 ++++++++++++++++++++ drivers/usb/host/ohci-hub.c | 42 +++++++++++++++++++++++++++++ drivers/usb/host/ohci-pci.c | 13 +++++++++ drivers/usb/host/ohci.h | 23 ++++++++-------- drivers/usb/host/pci-quirks.c | 17 +++++++++++- drivers/usb/host/pci-quirks.h | 1 + drivers/usb/host/xhci-pci.c | 4 +++ drivers/usb/host/xhci.c | 61 +++++++++++++++++++++++++++++++++++++++++++ drivers/usb/host/xhci.h | 25 +++++++++--------- include/linux/usb.h | 1 + 10 files changed, 191 insertions(+), 24 deletions(-) -- 1.7.11.7 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
