linux-kernel - Re: [PATCH] mmc: sdhci: Set SDHCI_POWER

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Date:	Tue, 10 Feb 2015 17:53:29 +0900
From:	Alexandre Courbot <gnurou@...il.com>
To:	Ulf Hansson <ulf.hansson@...aro.org>
Cc:	Tim Kryger <tim.kryger@...il.com>, Chris Ball <chris@...ntf.net>,
	Sachin Kamat <spk.linux@...il.com>,
	Linux MMC List <linux-kernel@...r.kernel.org>,
	linux-mmc <linux-mmc@...r.kernel.org>
Subject: Re: [PATCH] mmc: sdhci: Set SDHCI_POWER_ON with external vmmc

On Wed, Jan 14, 2015 at 5:53 PM, Ulf Hansson <ulf.hansson@...aro.org> wrote:
> + linux-mmc
>
> On 14 January 2015 at 07:24, Tim Kryger <tim.kryger@...il.com> wrote:
>> Host controllers lacking the required internal vmmc regulator may still
>> follow the spec with regard to the LSB of SDHCI_POWER_CONTROL.  Set the
>> SDHCI_POWER_ON bit when vmmc is enabled to encourage the controller to
>> to drive CMD, DAT, SDCLK.
>>
>> This fixes a regression observed on some Qualcomm and Nvidia boards
>> caused by 5222161 mmc: sdhci: Improve external VDD regulator support.
>>
>> Signed-off-by: Tim Kryger <tim.kryger@...il.com>
>> Tested-by: Bjorn Andersson <bjorn.andersson@...ymobile.com>
>
> Thanks! Applied for fixes.
>
> I noticed this wasn't posted to linux-mmc. I am anyway picking it up
> as this change has already been discussed and tested, see:
> https://lkml.org/lkml/2014/11/3/1029

The party is probably over for this patch, but FWIW:

Tested-by: Alexandre Courbot <acourbot@...dia.com>
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