usb: gadget: composite: enable BESL support

commit a6615937bcd9234e6d6bb817c3701fce44d0a84d upstream.

According to USB 2.0 ECN Errata for Link Power
Management (USB2-LPM-Errata-final.pdf), BESL
must be enabled if LPM is enabled.

This helps with USB30CV TD 9.21 LPM L1
Suspend Resume Test.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Du, Changbin <changbin.du@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 034fd53ddbd0cb3ff5436cfc81c8d81fc09f1911..aa6e8893071bbf5fea08891b99ad935c3b9d5d1c 100644 (file)
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -560,7 +560,7 @@ static int bos_desc(struct usb_composite_dev *cdev)
 #ifdef CONFIG_USB_ANDROID_SAMSUNG_COMPOSITE
        usb_ext->bmAttributes = 0;
 #else
-       usb_ext->bmAttributes = cpu_to_le32(USB_LPM_SUPPORT);
+       usb_ext->bmAttributes = cpu_to_le32(USB_LPM_SUPPORT | USB_BESL_SUPPORT);
 #endif
 
        /*