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

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Message-ID: <CAPDyKFrW1ZojV0sWTswapWDvkmgshtyb=NP9CrY+GymdQeRq5w@mail.gmail.com>
Date:	Tue, 19 Aug 2014 14:43:36 +0200
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
Cc:	Mark Brown <broonie@...nel.org>, Tim Kryger <tim.kryger@...il.com>,
	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 19 August 2014 13:29, Javier Martinez Canillas
<javier.martinez@...labora.co.uk> wrote:
> Hello Ulf,
>
> On 08/15/2014 04:51 PM, Ulf Hansson wrote:
>>
>> Just wanted to add some input regarding the errors in the mmc case.
>> These are of high importance. In principle if you get, "Failed getting
>> OCR mask: -22", likely you will be using a wrong OCR mask while
>> negotiating the voltage level with the card.
>>
>> So, somehow we need to address this issue.
>>
>
> And do you think that $subject is the right approach to solve this issue?
> If not please let me know so I can address that.

Well, currently this seems like the best approach. If we end up having
some new regulator helper function, future wise, we can convert to
such later on.

Kind regards
Uffe
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