linux-kernel - Re: [PATCH V2 0/3] Add drivers/pwm and drivers/pwm/st

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Message-ID: <20110629091441.GA9349@pengutronix.de>
Date:	Wed, 29 Jun 2011 11:14:41 +0200
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Pratyush ANAND <pratyush.anand@...com>,
	Rajeev KUMAR <rajeev-dlh.kumar@...com>,
	Bhupesh SHARMA <bhupesh.sharma@...com>,
	Armando VISCONTI <armando.visconti@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Vipin KUMAR <vipin.kumar@...com>,
	Shiraz HASHIM <shiraz.hashim@...com>,
	Amit VIRDI <Amit.VIRDI@...com>,
	Vipul Kumar SAMAR <vipulkumar.samar@...com>,
	"viresh.linux@...il.com" <viresh.linux@...il.com>,
	Deepak SIKRI <deepak.sikri@...com>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH V2 0/3] Add drivers/pwm and drivers/pwm/st_pwm.c

On Tue, Jun 28, 2011 at 05:13:15PM +0200, Arnd Bergmann wrote:
> On Tuesday 28 June 2011, Sascha Hauer wrote:
> > > 
> > > Good question. If Sascha is able to come up with the patch to introduce
> > > the generic layer, I think it would be good to have it go though him.
> > 
> > Just posted a rebased and documented series again. Let's see what
> > happens. The time seems good to finally get this into the kernel.
> 
> I'd say let's go forward with your framework. The two patches currently
> because they both add Makefile/Kconfig files in drivers/pwm.
> 
> Maybe you can add Viresh's patch to your series, and wait for him
> to follow up with a patch to convert it?
> 
> I've tried to blindly do the conversion myself, but got stuck with the
> definition of the platform device that has multiple pwms in it.
> I wonder if it would be better to change the st-pwm platform
> interface to define one platform_device for each of them.

Definitely. From a quick look at the driver it seems the pwms all have
a seperate register space.

I can add Viresh's patch to my series once we agree on the base patch.
In the meantime maybe Viresh starts converting it ;)

Sascha

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