linux-kernel - Re: [PATCH v3 2/3] mmc: dw_mmc: Use mmc_regulator_set_vqmmc in start_signal_voltage

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Date:	Mon, 15 Dec 2014 17:12:52 -0800
From:	Andrew Bresticker <abrestic@...omium.org>
To:	Doug Anderson <dianders@...omium.org>
Cc:	Ulf Hansson <ulf.hansson@...aro.org>,
	Heiko Stuebner <heiko@...ech.de>,
	Jaehoon Chung <jh80.chung@...sung.com>,
	Seungwon Jeon <tgih.jun@...sung.com>,
	Mark Brown <broonie@...nel.org>,
	Alexandru Stan <amstan@...omium.org>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	Sonny Rao <sonnyrao@...omium.org>,
	"open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Chris Ball <chris@...ntf.net>,
	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 2/3] mmc: dw_mmc: Use mmc_regulator_set_vqmmc in start_signal_voltage_switch

Doug,

On Mon, Dec 15, 2014 at 4:22 PM, Doug Anderson <dianders@...omium.org> wrote:
> We've introduced a new helper in the MMC core:
> mmc_regulator_set_vqmmc().  Let's use this in dw_mmc.  Using this new
> helper has some advantages:
>
> 1. We get the mmc_regulator_set_vqmmc() behavior of trying to match
>    VQMMC and VMMC when the signal voltage is 3.3V.  This ensures max
>    compatibility.
>
> 2. We get rid of a few more warnings when probing unsupported
>    voltages.
>
> 3. We get rid of some non-dw_mmc specific code in dw_mmc.
>
> Signed-off-by: Doug Anderson <dianders@...omium.org>

Reviewed-by: Andrew Bresticker <abrestic@...omium.org>
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