linux-kernel - Re: [PATCH v2 0/3] ARM: OMAP2+: USB Host bug fixes for 3.13 rc

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Message-ID: <20131205184832.GG26766@atomide.com>
Date:	Thu, 5 Dec 2013 10:48:32 -0800
From:	Tony Lindgren <tony@...mide.com>
To:	Tomi Valkeinen <tomi.valkeinen@...com>
Cc:	Roger Quadros <rogerq@...com>, bcousson@...libre.com,
	paul@...an.com, balbi@...com, sr@...x.de, David.Laight@...LAB.COM,
	michael@...rulasolutions.com, bigeasy@...utronix.de,
	linux-omap@...r.kernel.org, linux-usb@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 0/3] ARM: OMAP2+: USB Host bug fixes for 3.13 rc

* Tomi Valkeinen <tomi.valkeinen@...com> [131204 02:01]:
> On 2013-12-03 16:25, Roger Quadros wrote:
> > Hi,
> > 
> > This is a follow up solution to the original series in [1]
> > 
> > The first patch fixes the OMAP4 Panda USB detection problems on 3.13-rc1
> > with u-boot v2013.10.
> > 
> > The remaining 2 patches are required if SOFTRESET needs to be done for the
> > USB Host module on OMAP3 platforms.
> > 
> > Patch 2 fixes the hwmod RESET logic to prevent multiple SOFTRESETs
> > being issued to the modules. This multiple SOFTRESET was causing problems
> > with OMAP3 USB Host module. On Beagleboard C4 this is seen as failure to
> > mount NFS root over external USB to Ethernet device.
> > 
> > This might be the reason why HWMOD_INIT_NO_RESET was used for the OMAP
> > USB host module in OMAP3 hwmod data and just carried forward in OMAP4
> > and OMAP5 hwmod data as well.
> > 
> > cheers,
> > -roger
> 
> Tested on Panda and Beagle xM. Works fine for me.

Looks like we should merge these as regression fixes during the -rc
cycle. Paul should take a look at these first though.

Regards,

Tony
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