linux-kernel - Re: [PATCH 1/4] mfd: max14577: Add max14577 MFD driver core

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Message-ID: <20131114112209.GF26614@sirena.org.uk>
Date:	Thu, 14 Nov 2013 11:22:09 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Marek Szyprowski <m.szyprowski@...sung.com>
Cc:	Kyungmin Park <kmpark@...radead.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	Anton Vorontsov <anton@...msg.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH 1/4] mfd: max14577: Add max14577 MFD driver core

On Thu, Nov 14, 2013 at 11:53:51AM +0100, Marek Szyprowski wrote:
> On 2013-11-14 11:24, Mark Brown wrote:

> >Modern systems should be able to use deferred probing to resolve these
> >dependencies, subsys_initcall() is mostly there for legacy reasons and
> >new systems ought to be able to move away from it.

> The main problem here is usb gadget subsystem, which simply doesn't support
> deferred probe yet. UDC driver (which uses those regulators) need to be
> initialized before usb gadget driver (i.e. mass storage or cdc ethernet)
> has been registered.

OK, that makes sense - OK for the time being.

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