On Wed, Apr 29, 2015 at 10:19:13AM +0000, Du, Changbin wrote: > From a6615937bcd9234e6d6bb817c3701fce44d0a84d Mon Sep 17 00:00:00 2001 > From: Felipe Balbi <balbi@xxxxxx> > Date: Tue, 30 Sep 2014 16:08:03 -0500 > Subject: [PATCH] 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. > I gotta tell you to try once more. What have you missed here ? (Hint: it status with Cc: and ends with <stable@xxxxxxxxxxxxxxx> # v3.1+) > Signed-off-by: Felipe Balbi <balbi@xxxxxx> > Signed-off-by: Du, Changbin <changbin.du@xxxxxxxxx> > --- > Hi, > > This patch was introduced on v3.18. However the issue fixed already existed on > v3.1. Thank Balbi for pointing it out. > > So propose to backport it over 3.1+ stable trees as well. > > Change from v2: add upstream commit id in commit message. > > Du, Changbin > --- > drivers/usb/gadget/composite.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c > index a8c18df..f6a51fd 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) > usb_ext->bLength = USB_DT_USB_EXT_CAP_SIZE; > usb_ext->bDescriptorType = USB_DT_DEVICE_CAPABILITY; > usb_ext->bDevCapabilityType = USB_CAP_TYPE_EXT; > - usb_ext->bmAttributes = cpu_to_le32(USB_LPM_SUPPORT); > + usb_ext->bmAttributes = cpu_to_le32(USB_LPM_SUPPORT | USB_BESL_SUPPORT); > > /* > * The Superspeed USB Capability descriptor shall be implemented by all > -- > 1.9.1 > -- balbi
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