linux-kernel - Re: [PATCH v2] ARM: dts: sunxi: Add regulators for LeMaker BananaPi

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Message-ID: <20150818153208.GF2547@lukather>
Date:	Tue, 18 Aug 2015 17:32:08 +0200
From:	Maxime Ripard <maxime.ripard@...e-electrons.com>
To:	Timo Sigurdsson <public_timo.s@...entcreek.de>
Cc:	robh+dt@...nel.org, pawel.moll@....com, mark.rutland@....com,
	ijc+devicetree@...lion.org.uk, galak@...eaurora.org,
	linux@....linux.org.uk, devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-sunxi@...glegroups.com, wens@...e.org
Subject: Re: [PATCH v2] ARM: dts: sunxi: Add regulators for LeMaker BananaPi

On Tue, Aug 04, 2015 at 11:02:24AM +0200, Timo Sigurdsson wrote:
> Hi Maxime,
> 
> Maxime Ripard schrieb am 03.08.2015 11:47:
> > What regulator provides the 3.3V regulator used in the rest of this DT
> > then (MMC, GMAC) ?
> 
> For GMAC, there is a reg_gmac_3v3 defined in sun7i-a20-bananapi.dts [1].
> MMC uses reg_vcc3v3 included from sunxi-common-regulators.dtsi. Am I
> missing something? Is this not sufficient?

Well, this 3.3v regulator doesn't appear out of nowhere. Most likely,
it's either one of the AXP output, or a regulator directly taking the
5v output of the DC plug.

Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com

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