linux-kernel - Re: [PATCH 1/2] mmc: dw_mmc: Make sure we only adjust the clock when power is on

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Message-ID: <54EE1392.1020705@collabora.co.uk>
Date:	Wed, 25 Feb 2015 19:25:22 +0100
From:	Javier Martinez Canillas <javier.martinez@...labora.co.uk>
To:	Doug Anderson <dianders@...omium.org>,
	Jaehoon Chung <jh80.chung@...sung.com>,
	Seungwon Jeon <tgih.jun@...sung.com>,
	Ulf Hansson <ulf.hansson@...aro.org>
CC:	Alim Akhtar <alim.akhtar@...sung.com>,
	Sonny Rao <sonnyrao@...omium.org>,
	Andrew Bresticker <abrestic@...omium.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Addy Ke <addy.ke@...k-chips.com>,
	Alexandru Stan <amstan@...omium.org>, chris@...ntf.net,
	linux-mmc@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] mmc: dw_mmc: Make sure we only adjust the clock when
 power is on

Hello Doug,

On 02/20/2015 07:57 PM, Doug Anderson wrote:
> It appears that we can confuse things if we try to turn on the MMC
> clock when the power is off.  Adjust is so that we turn the clock on
> (using dw_mci_setup_bus) after power is all the way on and we turn the
> clock off before the power goes off.
> 
> Signed-off-by: Doug Anderson <dianders@...omium.org>

On an Exynos5250 Snow, Exynos5420 Peach Pit and Exynos5800 Peach Pi:

Tested-by: Javier Martinez Canillas <javier.martinez@...labora.co.uk>

Best regards,
Javier

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