linux-kernel - Re: [PATCH v4] mfd: syscon: Add non-DT support

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Message-ID: <20130222071311.GB3252@b29396-Latitude-E6410>
Date:	Fri, 22 Feb 2013 15:13:12 +0800
From:	Dong Aisheng <b29396@...escale.com>
To:	Alexander Shiyan <shc_work@...l.ru>
CC:	<linux-kernel@...r.kernel.org>, Arnd Bergmann <arnd@...db.de>,
	Dong Aisheng <dong.aisheng@...aro.org>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	<thierry.reding@...onic-design.de>, <gregkh@...uxfoundation.org>
Subject: Re: [PATCH v4] mfd: syscon: Add non-DT support

On Fri, Feb 22, 2013 at 11:01:18AM +0400, Alexander Shiyan wrote:
> > On Thu, Feb 21, 2013 at 07:29:02PM +0400, Alexander Shiyan wrote:
> > > This patch allow using syscon driver from the platform data, i.e.
> > > possibility using driver on systems without oftree support.
> > > For search syscon device from the client drivers,
> > > "syscon_regmap_lookup_by_pdevname" function was added.
> > > 
> > > Signed-off-by: Alexander Shiyan <shc_work@...l.ru>
> > 
> > [...]
> > 
> > > +	syscon->base = devm_ioremap_resource(dev, res);
> > > +	if (!syscon->base)
> > 
> > Is this correct?
> 
> Hmm, of course IS_ERR should be used here...
> v5?
> 

Yes.
>From here:
https://lkml.org/lkml/2013/1/21/140
It seems it is.

> > 
> > > +		return -EBUSY;

Both this line could also be changed.

> > >
> > 
> > Otherwise, i'm also ok with this patch.
> > Acked-by: Dong Aisheng <dong.aisheng@...aro.org>
> > 
> > BTW, i did not see Samuel's tree having this new API.
> > So, who will pick this patch?
> 
> I have same question.

I CCed Thierry and Greg who may know it.

Regards
Dong Aisheng

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