Messages in this thread Patch in this message | | | Date | Sat, 16 Jul 2011 11:04:19 +0800 | From | JiSheng Zhang <> | Subject | [PATCH] USB: xhci: fix OS want to own HC |
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Software should set XHCI_HC_OS_OWNED bit to request ownership of xHC
Signed-off-by: JiSheng Zhang <jszhang3@gmail.com> --- 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 fd93061..1a73004 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -775,7 +775,7 @@ 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, -- 1.7.5.4
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