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From: Mark Brown <broonie@kernel.org>
To: Doug Anderson <dianders@chromium.org>
Cc: milo.kim@ti.com, Axel Lin <axel.lin@ingics.com>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Olof Johansson <olof@lixom.net>,
Javier Martinez Canillas <javier.martinez@collabora.co.uk>,
Paul Stewart <pstew@chromium.org>,
"stable@vger.kernel.org" <stable@vger.kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] regulator: core: Fix enable GPIO reference counting
Date: Wed, 4 Mar 2015 11:27:12 +0000 [thread overview]
Message-ID: <20150304112712.GI21293@sirena.org.uk> (raw)
In-Reply-To: <CAD=FV=V4jT=dGMNoLXb-Anuv9=uO5UDeo+mMFgcoGzccgENz1w@mail.gmail.com>
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On Tue, Mar 03, 2015 at 03:21:21PM -0800, Doug Anderson wrote:
> It looks as if "ena_gpio_state" is not quite what I thought it was and
> I think is not actually consistent in the regulator framework itself.
> In _regulator_do_enable() and _regulator_do_disable() is clear that
> ena_gpio_state is 1 when an "rdev" is enabled and 0 when the "rdev" is
> disabled. That was my assumption. It's also clear in
> _regulator_is_enabled().
> ...but then I looked in regulator_register(). There you can see that
> ena_gpio_state could be set to 1 if you've got an active low GPIO that
> is disabled at boot. That totally throws my logic for a loop. Also
> with my patch the reference counting will be all messed up for active
> high / boot on regulators. :(
Isn't that just a bug in the registration code? I'd not be entirely
surprised if that were the case.
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next prev parent reply other threads:[~2015-03-04 11:27 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-27 19:41 Doug Anderson
2015-02-27 20:08 ` Greg KH
2015-02-27 21:01 ` Javier Martinez Canillas
2015-03-02 18:57 ` Mark Brown
2015-03-02 20:21 ` Javier Martinez Canillas
2015-03-03 14:24 ` Mark Brown
2015-03-02 18:47 ` Mark Brown
2015-03-02 21:13 ` Doug Anderson
2015-03-03 14:23 ` Mark Brown
2015-03-03 23:21 ` Doug Anderson
2015-03-04 11:27 ` Mark Brown [this message]
2015-03-04 17:13 ` Doug Anderson
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