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| author |   Ingo Molnar <mingo@kernel.org> | 2012-04-25 08:59:16 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-04-25 08:59:16 +0200 |
| commit | 3dbe927b1eddcbd66da1653168e33122aca84f4e (patch) | |
| tree | 2357f4c55156597b1d07b9ea360b07086cd011e4 /drivers/usb/host/pci-quirks.c | |
| parent | Merge tag 'v3.4-rc2' into perf/core (diff) | |
| parent | Linux 3.4-rc4 (diff) | |
| download | linux-dev-3dbe927b1eddcbd66da1653168e33122aca84f4e.tar.xz linux-dev-3dbe927b1eddcbd66da1653168e33122aca84f4e.zip | |
Merge tag 'v3.4-rc4' into perf/core
Merge v3.4-rc4 - we were on -rc2 before.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/usb/host/pci-quirks.c')
| -rw-r--r-- | drivers/usb/host/pci-quirks.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c index 11de5f1be981..32dada8c8b4f 100644 --- a/drivers/usb/host/pci-quirks.c +++ b/drivers/usb/host/pci-quirks.c @@ -825,9 +825,13 @@ static void __devinit quirk_usb_handoff_xhci(struct pci_dev *pdev) } } - /* Disable any BIOS SMIs */ - writel(XHCI_LEGACY_DISABLE_SMI, - base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); + val = readl(base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); + /* Mask off (turn off) any enabled SMIs */ + val &= XHCI_LEGACY_DISABLE_SMI; + /* Mask all SMI events bits, RW1C */ + val |= XHCI_LEGACY_SMI_EVENTS; + /* Disable any BIOS SMIs and clear all SMI events*/ + writel(val, base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); if (usb_is_intel_switchable_xhci(pdev)) usb_enable_xhci_ports(pdev); |