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| author | JiSheng Zhang <jszhang3@gmail.com> | 2011-07-16 11:04:19 +0800 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2011-08-01 09:45:27 -0700 |
| commit | 6768458b17f9bf48a4c3a34e49b20344091b5f7e (patch) | |
| tree | b97a28ca9a37cea60ada641a6cce6f58f439492f /drivers/usb/host/pci-quirks.c | |
| parent | 7bd89b4017f46a9b92853940fd9771319acb578a (diff) | |
| download | linux-6768458b17f9bf48a4c3a34e49b20344091b5f7e.tar.bz2 | |
USB: xhci: fix OS want to own HC
Software should set XHCI_HC_OS_OWNED bit to request ownership of xHC.
This patch should be backported to kernels as far back as 2.6.31.
Signed-off-by: JiSheng Zhang <jszhang3@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@kernel.org
Diffstat (limited to 'drivers/usb/host/pci-quirks.c')
| -rw-r--r-- | drivers/usb/host/pci-quirks.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index a9d315906e3d..f4d1b691e6ec 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -817,7 +817,7 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev) /* If the BIOS owns the HC, signal that the OS wants it, and wait */ if (val & XHCI_HC_BIOS_OWNED) { - writel(val & XHCI_HC_OS_OWNED, base + ext_cap_offset); + writel(val | XHCI_HC_OS_OWNED, base + ext_cap_offset); /* Wait for 5 seconds with 10 microsecond polling interval */ timeout = handshake(base + ext_cap_offset, XHCI_HC_BIOS_OWNED, |