linux-kernel - Re: [PATCH 2/5] [input] add mc13783 touchscreen driver

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Date:	Wed, 12 Aug 2009 09:01:28 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Sascha Hauer <s.hauer@...gutronix.de>
Cc:	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.arm.linux.org.uk,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	linux-input@...r.kernel.org
Subject: Re: [PATCH 2/5] [input] add mc13783 touchscreen driver

On Wed, Aug 12, 2009 at 01:10:18PM +0200, Sascha Hauer wrote:
> Hi Dmitry
> 
> On Tue, Aug 11, 2009 at 07:15:33PM -0700, Dmitry Torokhov wrote:
> > Hi Sascha,
> > 
> > On Tue, Aug 11, 2009 at 11:07:44AM +0200, Sascha Hauer wrote:
> > > +
> > > +	INIT_DELAYED_WORK(&priv->work, mc13783_ts_work);
> > > +
> > > +	priv->workq = create_singlethread_workqueue("mc13783_ts");
> > 
> > Do you really need a separate workqueue? Would not keventd suffice?
> 
> Yes, I do. mc13783_adc_do_conversion() runs in a workqueue aswell. With
> keventd I would deadlock.
> 

I see. Then please add a comment why it is needed so nobody is tempted
to doa "cleanup" ;)

-- 
Dmitry
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