linux-kernel - Re: [PATCH v4] usb: gadget: composite: enable BESL support

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Message-ID: <20150430205311.GA30439@kroah.com>
Date:	Thu, 30 Apr 2015 22:53:11 +0200
From:	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
To:	"Du, Changbin" <changbin.du@...el.com>
Cc:	"balbi@...com" <balbi@...com>,
	"stable@...r.kernel.org" <stable@...r.kernel.org>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Cohen, David A" <david.a.cohen@...el.com>,
	"Wu, Hao" <hao.wu@...el.com>
Subject: Re: [PATCH v4] usb: gadget: composite: enable BESL support

On Thu, Apr 30, 2015 at 05:32:57AM +0000, Du, Changbin wrote:
> >From a6615937bcd9234e6d6bb817c3701fce44d0a84d Mon Sep 17 00:00:00 2001
> From: Felipe Balbi <balbi@...com>
> 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.
> 
> Cc: <stable@...r.kernel.org> # 3.1+
> Signed-off-by: Felipe Balbi <balbi@...com>
> Signed-off-by: Du, Changbin <changbin.du@...el.com>
> ---
> 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 all 3.1+ stable trees as well.

All I really needed was just the git commit id, and what stable trees to
apply it to, no need to keep resending the patch...

thanks,

greg k-h
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