This is a note to let you know that I've just added the patch titled
xHCI: add XHCI_RESET_ON_RESUME quirk for VIA xHCI host
to the 3.0-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
xhci-add-xhci_reset_on_resume-quirk-for-via-xhci-host.patch
and it can be found in the queue-3.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 457a4f61f9bfc3ae76e5b49f30f25d86bb696f67 Mon Sep 17 00:00:00 2001
From: Elric Fu <[email protected]>
Date: Thu, 29 Mar 2012 15:47:50 +0800
Subject: xHCI: add XHCI_RESET_ON_RESUME quirk for VIA xHCI host
From: Elric Fu <[email protected]>
commit 457a4f61f9bfc3ae76e5b49f30f25d86bb696f67 upstream.
The suspend operation of VIA xHCI host have some issues and
hibernate operation works fine, so The XHCI_RESET_ON_RESUME
quirk is added for it.
This patch should base on "xHCI: Don't write zeroed pointer
to xHC registers" that is released by Sarah. Otherwise, the
host system error will ocurr in the hibernate operation
process.
This should be backported to stable kernels as old as 2.6.37,
that contain the commit c877b3b2ad5cb9d4fe523c5496185cc328ff3ae9
"xhci: Add reset on resume quirk for asrock p67 host".
Signed-off-by: Elric Fu <[email protected]>
Signed-off-by: Sarah Sharp <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/usb/host/xhci-pci.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -145,6 +145,8 @@ static int xhci_pci_setup(struct usb_hcd
xhci->quirks |= XHCI_RESET_ON_RESUME;
xhci_dbg(xhci, "QUIRK: Resetting on resume\n");
}
+ if (pdev->vendor == PCI_VENDOR_ID_VIA)
+ xhci->quirks |= XHCI_RESET_ON_RESUME;
/* Make sure the HC is halted. */
retval = xhci_halt(xhci);
Patches currently in stable-queue which might be from [email protected] are
queue-3.0/xhci-don-t-write-zeroed-pointers-to-xhc-registers.patch
queue-3.0/xhci-add-xhci_reset_on_resume-quirk-for-via-xhci-host.patch
queue-3.0/xhci-restore-event-ring-dequeue-pointer-on-resume.patch
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