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Date: Fri, 26 Aug 2011 14:58:22 -0700 From: Greg KH <gregkh@...e.de> To: linux-kernel@...r.kernel.org, stable@...nel.org Cc: stable-review@...nel.org, torvalds@...ux-foundation.org, akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk, JiSheng Zhang <jszhang3@...il.com>, Sarah Sharp <sarah.a.sharp@...ux.intel.com> Subject: [01/19] USB: xhci: fix OS want to own HC 2.6.32-longterm review patch. If anyone has any objections, please let us know. ------------------ From: JiSheng Zhang <jszhang3@...il.com> commit 6768458b17f9bf48a4c3a34e49b20344091b5f7e upstream. 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@...il.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@...ux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de> --- drivers/usb/host/pci-quirks.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -444,7 +444,7 @@ static void __devinit quirk_usb_handoff_ /* 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, -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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