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| author | Ingo Molnar <mingo@elte.hu> | 2010-12-08 22:15:26 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-12-08 22:15:29 +0300 |
| commit | 8e9255e6a2141e050d51bc4d96dbef494a87d653 (patch) | |
| tree | f190b142830153eaab05555a93c4f71a144ba3d4 /drivers/usb/host/xhci-hub.c | |
| parent | 5091faa449ee0b7d73bc296a93bca9540fc51d0a (diff) | |
| parent | 6313e3c21743cc88bb5bd8aa72948ee1e83937b6 (diff) | |
| download | linux-8e9255e6a2141e050d51bc4d96dbef494a87d653.tar.xz | |
Merge branch 'linus' into sched/core
Merge reason: we want to queue up dependent cleanup
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/usb/host/xhci-hub.c')
| -rw-r--r-- | drivers/usb/host/xhci-hub.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index fef5a1f9d483..5d963e350494 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -229,6 +229,13 @@ void xhci_ring_device(struct xhci_hcd *xhci, int slot_id) static void xhci_disable_port(struct xhci_hcd *xhci, u16 wIndex, u32 __iomem *addr, u32 port_status) { + /* Don't allow the USB core to disable SuperSpeed ports. */ + if (xhci->port_array[wIndex] == 0x03) { + xhci_dbg(xhci, "Ignoring request to disable " + "SuperSpeed port.\n"); + return; + } + /* Write 1 to disable the port */ xhci_writel(xhci, port_status | PORT_PE, addr); port_status = xhci_readl(xhci, addr); |