diff options
| author | Alek Du <alek.du@intel.com> | 2010-09-06 14:50:57 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-09-20 16:04:59 -0700 |
| commit | fc9282506114d4be188a464af2d373db31dd781c (patch) | |
| tree | 871aba29e4c8cfadae3591c4d4d67145e9881286 | |
| parent | 024cfa5943a7e89565c60b612d698c2bfb3da66a (diff) | |
USB: EHCI: Disable langwell/penwell LPM capability
We have to do so due to HW limitation.
Signed-off-by: Alek Du <alek.du@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/host/ehci-pci.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c index 58b72d741d9..a1e8d273103 100644 --- a/drivers/usb/host/ehci-pci.c +++ b/drivers/usb/host/ehci-pci.c @@ -119,6 +119,11 @@ static int ehci_pci_setup(struct usb_hcd *hcd) ehci->broken_periodic = 1; ehci_info(ehci, "using broken periodic workaround\n"); } + if (pdev->device == 0x0806 || pdev->device == 0x0811 + || pdev->device == 0x0829) { + ehci_info(ehci, "disable lpm for langwell/penwell\n"); + ehci->has_lpm = 0; + } break; case PCI_VENDOR_ID_TDI: if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) { |