linux-kernel - Re: Applied "regulator: wm8994: Pass descriptor instead of GPIO number" to the regulator tree

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Message-ID: <20181120153610.GD16508@imbe.wolfsonmicro.main>
Date:   Tue, 20 Nov 2018 15:36:10 +0000
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     Marek Szyprowski <m.szyprowski@...sung.com>
CC:     Mark Brown <broonie@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Lee Jones <lee.jones@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        <linux-kernel@...r.kernel.org>, <patches@...nsource.cirrus.com>
Subject: Re: Applied "regulator: wm8994: Pass descriptor instead of GPIO
 number" to the regulator tree

On Tue, Nov 20, 2018 at 03:32:15PM +0000, Charles Keepax wrote:
> On Tue, Nov 20, 2018 at 03:58:59PM +0100, Marek Szyprowski wrote:
> > On 2018-11-20 15:47, Charles Keepax wrote:
> > > On Tue, Nov 20, 2018 at 02:43:32PM +0100, Marek Szyprowski wrote:
> > >> On 2018-05-17 18:41, Mark Brown wrote:
> > >>> Subject: [PATCH] regulator: wm8994: Pass descriptor instead of GPIO number
> > >> This patch causes following kernel warning on Samsung Exynos4412 based
> > >> Trats2 board:
> > >>
> > >> wm8994 4-001a: Failed to get supply 'DBVDD1': -517
> > >> wm8994 4-001a: Failed to get supplies: -517
> This is really weird, because the error in your log relates to
> DBVDD1 which is an independent regulator supplied by a separate
> regulator. I am really having some difficulty seeing how the
> patch interfers. It is definitely that patch which causes the
> issue, like you revert it and things work again?

Wait does the board still boot just you have an extra probe defer
now? Or does it actually fail?

Thanks,
Charles