From: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx> 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@xxxxxxxxxxxxxxx> Signed-off-by: Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx> Reported-by: Steve Cotton <steve@xxxxxxxxxxxxxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx --- drivers/usb/host/xhci-ext-caps.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/usb/host/xhci-ext-caps.h b/drivers/usb/host/xhci-ext-caps.h index 8d7a132..9fe3225 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*/ -- 1.8.3.3 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
