linux-kernel - Re: [PATCH v2 11/14] regulator: s2mps11: Add opmode for S2MPS14 regulators

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Date:	Mon, 17 Feb 2014 09:09:46 +0100
From:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
To:	Mark Brown <broonie@...nel.org>
Cc:	Sangbeom Kim <sbkim73@...sung.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>, linux-kernel@...r.kernel.org,
	linux-samsung-soc@...r.kernel.org,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Marek Szyprowski <m.szyprowski@...sung.com>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Liam Girdwood <lgirdwood@...il.com>
Subject: Re: [PATCH v2 11/14] regulator: s2mps11: Add opmode for S2MPS14
 regulators

On Fri, 2014-02-14 at 20:59 +0000, Mark Brown wrote:
> On Fri, Feb 14, 2014 at 09:15:12AM +0100, Krzysztof Kozlowski wrote:
> 
> > My initial idea was to do this similarly to the S5M8767 regulator (where
> > there is also 4th mode: low power). The presence of GPIO in DTS can
> > simplify the bindings but on the other hand it wouldn't be compatible
> > with S5M8767 regulator driver. This may complicate the merge of these
> > drivers.
> 
> They can always use separate ops.
> 
> > What is your opinion on this - should I abandon the "op_mode" idea and
> > use presence of GPIO?
> 
> Yes, that's better - especially since the framework has support for
> enable GPIOs.  It can do things like handle cases where the hardware has
> tied the enables for several regulators together so they all need to be
> enabled and disabled as one.

OK. I'll rewrite this patch and send later when S2MPS14 will be
accepted.

Best regards,
Krzysztof

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