Hi,
On Mar 9, 2018, at 1:06 AM, Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
On Thu, Mar 08, 2018 at 05:17:17PM +0200, Mathias Nyman wrote:
From: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
When a USB device gets plugged on ASUS PRIME B350M-A's front ports, the
xHC stops working:
[ 549.114587] xhci_hcd 0000:02:00.0: WARN: xHC CMD_RUN timeout
[ 549.114608] suspend_common(): xhci_pci_suspend+0x0/0xc0 returns -110
[ 549.114638] xhci_hcd 0000:02:00.0: can't suspend
(hcd_pci_runtime_suspend returned -110)
Delay before running xHC command CMD_RUN can workaround the issue.
Use a new quirk to make the delay only targets to the affected xHC.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@xxxxxxxxxxxxx>
Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci-pci.c | 3 +++
drivers/usb/host/xhci.c | 3 +++
drivers/usb/host/xhci.h | 1 +
3 files changed, 7 insertions(+)
Any reason this shouldn't go to the stable kernel trees?
It would be really nice to have this in stable tree.
Kai-Heng
thanks,
greg k-h
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