After this patchset, USB 3.0 hub suspend is solid, as far as my tests go
with the latest TI hub prototype.
Changes since v1:
- Actually enable the xHCI host to pass up Device Notification events.
- Refactor the hub port remote wakeup checking into a new function.
- Remove the debounce delay on link change.
- Handle USB 3.0 device resume of the second-tier suspended hub
(thank you to TI for sending two hubs)
- Add the wakeup_bits field to the usb_hub structure to indicate a
device has initiated resume on a port, since USB 3.0 hubs won't set
their port link state change bits on a device-initiated resume.
Comments are appreciated.
Sarah Sharp
The following changes since commit 5f586bec0f37591d609623c69b3381fd9e0d010d:
xhci: Fix USB 3.0 device restart on resume. (2012-01-25 14:14:08 -0800)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/sarah/xhci.git usb3-hub-suspend
Sarah Sharp (9):
USB: Remove duplicate USB 3.0 hub feature #defines.
xHCI: Kick khubd when USB3 resume really completes.
USB/xhci: Enable remote wakeup for USB3 devices.
USB: Suspend functions before putting dev into U3.
USB/xHCI: Enable USB 3.0 hub remote wakeup.
USB: Refactor hub remote wake handling.
USB/xHCI: Support device-initiated USB 3.0 resume.
USB: Set wakeup bits for all children hubs.
USB: Turn on auto-suspend for USB 3.0 hubs.
drivers/usb/core/hub.c | 172 ++++++++++++++++++++++++++++++------------
drivers/usb/host/xhci-hub.c | 41 ++++++++++
drivers/usb/host/xhci-mem.c | 11 +++-
drivers/usb/host/xhci-ring.c | 74 +++++++++++++++---
drivers/usb/host/xhci.h | 1 +
include/linux/usb/ch11.h | 15 ++--
include/linux/usb/hcd.h | 2 +
7 files changed, 248 insertions(+), 68 deletions(-)
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