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| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-12-13 15:53:31 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2010-12-13 15:53:31 +0000 |
| commit | 474b9c86b0c65e9ca6a77d8b7bf132c4d5993b9c (patch) | |
| tree | 9ce213f7a268d13f8871b84f1d22c2b9ff55afcf /drivers/usb/host/xhci-hub.c | |
| parent | 49db7e7b995f5c61c5e24198f833ed01d99f5e7d (diff) | |
| parent | fdea0571ddca8e3f22448f66d72a034575abea28 (diff) | |
Merge branch 'topic/asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 into for-2.6.38
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); |