linux-kernel - RE: [PATCH 0/6] bug fix for mv_udc

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Message-ID: <175CCF5F49938B4D99B2E3EF7F558EBE54EC4135A8@SC-VEXCH4.marvell.com>
Date:	Mon, 24 Feb 2014 23:18:44 -0800
From:	Neil Zhang <zhangwm@...vell.com>
To:	Peter Chen <peter.chen@...escale.com>
CC:	Matthieu CASTET <matthieu.castet@...rot.com>,
	"balbi@...com" <balbi@...com>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH 0/6] bug fix for mv_udc_core.c


> -----Original Message-----
> From: Peter Chen [mailto:peter.chen@...escale.com]
> Sent: 2014年2月25日 12:18
> To: Neil Zhang
> Cc: Matthieu CASTET; balbi@...com; gregkh@...uxfoundation.org;
> linux-usb@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: Re: [PATCH 0/6] bug fix for mv_udc_core.c
> 
> On Mon, Feb 24, 2014 at 04:42:40AM -0800, Neil Zhang wrote:
> >
> > > -----Original Message-----
> > > From: Matthieu CASTET [mailto:matthieu.castet@...rot.com]
> > > Sent: 2014年2月24日 18:32
> > > To: Neil Zhang
> > > Cc: balbi@...com; gregkh@...uxfoundation.org;
> > > linux-usb@...r.kernel.org; linux-kernel@...r.kernel.org
> > > Subject: Re: [PATCH 0/6] bug fix for mv_udc_core.c
> > >
> > > Le Mon, 24 Feb 2014 16:03:10 +0800,
> > > Neil Zhang <zhangwm@...vell.com> a écrit :
> > >
> > > > This patch set is mainly for bug fix.
> > > >
> > > > Neil Zhang (6):
> > > >   usb: gadget: mv_udc: remove redundant pull up in udc_start
> > > >   usb: gadget: mv_udc: disable HW zlt for ep0
> > > >   usb: gadget: mv_udc: clear corresponding interrupt when flush fifo
> > > >   usb: gadget: mv_udc: check endpoint before queue dtd
> > > >   USB: gadget: mv_udc: workaroud for missing dTD
> > > >   USB: gadget: mv_udc: fix corner case for missiong dTD
> > > >
> > > >  drivers/usb/gadget/mv_udc_core.c |   47
> > > ++++++++++++++++++++++++++++++++++----
> > > >  1 file changed, 42 insertions(+), 5 deletions(-)
> > > >
> > >
> > > Do you have plan to move to the chipidea udc driver ?
> > >
> > > You could have some bug fix for free or share your bug fix with others.
> > >
> >
> >
> > Not yet.
> > Will estimate it later.
> > >
> 
> Freescale uses mv udc driver at u-boot, so the chipidea IP should be
> compatible for two SoCs , both Intel and msm are using chipidea driver at linux
> kernel, it should be not difficult for marvell to use it.
> 
> For this patchset, some of them may already be fixed at chipidea driver (3/6,
> 4/6), some of them may not (5/6, 6/6).
> 
> --

Thanks for the comments.
Since we are using it in our product, so it's not that easy to switch to a new driver.

> 
> Best Regards,
> Peter Chen

Best Regards,
Neil Zhang