linux-kernel - Re: [RFC] i2c: designware: Avoid initcall and initialize the driver like a regular one

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Message-ID: <20141223162357.GA4467@katana>
Date:	Tue, 23 Dec 2014 17:23:58 +0100
From:	Wolfram Sang <wsa@...-dreams.de>
To:	Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
Cc:	Walter Lozano <walter@...guardiasur.com.ar>,
	mika.westerberg@...ux.intel.com, Romain.Baeriswyl@...lis.com,
	atull@...nsource.altera.com, raymond.tan@...el.com,
	carlpeng008@...il.com, linux-i2c@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC] i2c: designware: Avoid initcall and initialize the driver
 like a regular one


> >> This means there won't be any early users of the I2C platform driver in this
> >> scenario.
> > 
> > There won't be with platform as well.
> 
> Oh, OK. Then maybe you can clarify why all those i2c busses need to be
> registered with initcall in the first place?

Because they want to access PMICs early to have voltages ready when
other drivers are probed. This, again, is DT/platform independent.
All this is cruft from the pre-deferred-probe era. And pretty annoying
to deprecated although I'd love to do that.


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