linux-kernel - Re: [PATCH 1/1] mmc: core: Use regulator_get

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Message-ID: <20140815222914.GM17528@sirena.org.uk>
Date:	Fri, 15 Aug 2014 23:29:14 +0100
From:	Mark Brown <broonie@...nel.org>
To:	Tim Kryger <tim.kryger@...il.com>
Cc:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Chris Ball <chris@...ntf.net>,
	Seungwon Jeon <tgih.jun@...sung.com>,
	Haijun Zhang <Haijun.Zhang@...escale.com>,
	Doug Anderson <dianders@...omium.org>,
	Olof Johansson <olof@...om.net>,
	Yuvaraj Kumar C D <yuvaraj.cd@...il.com>,
	linux-samsung-soc <linux-samsung-soc@...r.kernel.org>,
	linux-mmc <linux-mmc@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] mmc: core: Use regulator_get_voltage() if OCR mask
 is empty.

On Fri, Aug 15, 2014 at 07:19:41AM -0700, Tim Kryger wrote:

> That is a little different from my suggestion where the constraints
> check is skipped when the regulator output is fixed.  It effectively
> does this now when the regulator itself provides the fixed voltage.
> However, the checks aren't skipped when that fixed voltage is coming
> from an ancestor.  Why the difference?

Nobody has written suitable code, and please bear in mind that even if
the code is written there will probably be cases where it's too
expensive for whatever reason so Javier's change is going to be needed.

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