linux-kernel - Re: [PATCH 3/3] gpio: Add reference counting for non-exclusive GPIOs

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Message-ID: <20181126165335.GP16508@imbe.wolfsonmicro.main>
Date:   Mon, 26 Nov 2018 16:53:35 +0000
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     Mark Brown <broonie@...nel.org>
CC:     Linus Walleij <linus.walleij@...aro.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        <patches@...nsource.cirrus.com>
Subject: Re: [PATCH 3/3] gpio: Add reference counting for non-exclusive GPIOs

On Mon, Nov 26, 2018 at 02:54:28PM +0000, Mark Brown wrote:
> On Mon, Nov 26, 2018 at 02:30:28PM +0000, Charles Keepax wrote:
> 
> > Would there perhaps be milage in looking at just making
> > the regulator core request the GPIO, rather than the end
> > drivers? Gives us a single request/free point. We don't need
> > any special flags in the GPIO layer, as its just a single
> > user as far as GPIO is concerned.
> 
> Yes, I did suggest that earlier in the thread :/

Sorry yes it seems I misread what you had written earlier, I will
have a quick look see what a patch to do this might look like.

Thanks,
Charles