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authorMathias Nyman <mathias.nyman@linux.intel.com>2013-08-21 18:50:09 +0300
committerSarah Sharp <sarah.a.sharp@linux.intel.com>2013-08-27 08:54:42 -0700
commitdcf06a036848b4e8e6c8220f2e00b9adf6f84918 (patch)
treeab2e77d31bc557058b97d274f1111ae253c3d4dd /drivers/usb/host
parentc8476fb855434c733099079063990e5bfa7ecad6 (diff)
xhci: fix port BESL LPM capability checking
Wrong capability bit was checked for best effort service latency. bit 20 indicate port is BESL LPM capable (BLC), bit 19 is hardware LPM capable (HLC) This patch should be backported to kernels as old as 3.11, that contain the commit a558ccdcc71c7770c5e80c926a31cfe8a3892a09 "usb: xhci: add USB2 Link power management BESL support" Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Reported-by: Steve Cotton <steve@s.cotton.clara.co.uk> Cc: stable@vger.kernel.org
Diffstat (limited to 'drivers/usb/host')
-rw-r--r--drivers/usb/host/xhci-ext-caps.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-ext-caps.h b/drivers/usb/host/xhci-ext-caps.h
index 8d7a1324e2f..9fe3225e6c6 100644
--- a/drivers/usb/host/xhci-ext-caps.h
+++ b/drivers/usb/host/xhci-ext-caps.h
@@ -71,7 +71,7 @@
/* USB 2.0 xHCI 1.0 hardware LMP capability - section 7.2.2.1.3.2 */
#define XHCI_HLC (1 << 19)
-#define XHCI_BLC (1 << 19)
+#define XHCI_BLC (1 << 20)
/* command register values to disable interrupts and halt the HC */
/* start/stop HC execution - do not write unless HC is halted*/