From: Felipe Balbi <balbi@ti.com>
Date: Tue, 30 Sep 2014 21:08:03 +0000 (-0500)
Subject: usb: gadget: composite: enable BESL support
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=60b30571606c739bbe89e0a6e47f61ba71d3e88e;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

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 034fd53ddbd..aa6e8893071 100644
--- 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
 
 	/*