diff options
Diffstat (limited to 'usb.current/usb-ehci-disable-langwell-penwell-lpm-capability.patch')
| -rw-r--r-- | usb.current/usb-ehci-disable-langwell-penwell-lpm-capability.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/usb.current/usb-ehci-disable-langwell-penwell-lpm-capability.patch b/usb.current/usb-ehci-disable-langwell-penwell-lpm-capability.patch new file mode 100644 index 00000000000000..de57de40b10f93 --- /dev/null +++ b/usb.current/usb-ehci-disable-langwell-penwell-lpm-capability.patch @@ -0,0 +1,36 @@ +From alan@linux.intel.com Tue Sep 7 00:49:05 2010 +From: Alek Du <alek.du@intel.com> +Date: Mon, 06 Sep 2010 14:50:57 +0100 +Subject: USB: EHCI: Disable langwell/penwell LPM capability +To: linux-usb@vger.kernel.org +Message-ID: <20100906135040.4591.72919.stgit@localhost.localdomain> + + +From: Alek Du <alek.du@intel.com> + +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> + + +--- + drivers/usb/host/ehci-pci.c | 5 +++++ + 1 file changed, 5 insertions(+) + +--- 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 + 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) { |