From: maramaopercheseimorto@gmail.com (Alberto Panizzo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] regulator: mc13783: consider Power Gates as digital regulators.
Date: Tue, 19 Jan 2010 12:12:30 +0100 [thread overview]
Message-ID: <1263899550.6669.21.camel@realization> (raw)
In-Reply-To: <1263896816.3089.40.camel@odin>
On mar, 2010-01-19 at 10:26 +0000, Liam Girdwood wrote:
> > +static struct regulator_ops mc13783_gpo_regulator_ops = {
> > + .enable = mc13783_gpo_regulator_enable,
> > + .disable = mc13783_gpo_regulator_disable,
> > + .is_enabled = mc13783_gpo_regulator_is_enabled,
>
> How is the voltage output on the GPO regulator governed. Is it
> controlled by a parent regulator or fixed ?
>
> We probably want a way to query the voltage here or specify the parent
> relationship.
Good question.
>From datasheet GPO's are marked as LV (Low Voltage)-> 3.1V
Power Gates Driver are marked as EMV (Extended Medium Voltage) -> 5.5V
and no way to modify that -> they are fixed regulators.
I will add voltage query capability.
WARNING: multiple messages have this Message-ID (diff)
From: Alberto Panizzo <maramaopercheseimorto@gmail.com>
To: Liam Girdwood <lrg@slimlogic.co.uk>
Cc: "Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Samuel Ortiz" <sameo@linux.intel.com>,
"Sascha linux-arm" <s.hauer@pengutronix.de>,
"Mark Brown" <broonie@opensource.wolfsonmicro.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-arm-kernel-infradead <linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH] regulator: mc13783: consider Power Gates as digital regulators.
Date: Tue, 19 Jan 2010 12:12:30 +0100 [thread overview]
Message-ID: <1263899550.6669.21.camel@realization> (raw)
In-Reply-To: <1263896816.3089.40.camel@odin>
On mar, 2010-01-19 at 10:26 +0000, Liam Girdwood wrote:
> > +static struct regulator_ops mc13783_gpo_regulator_ops = {
> > + .enable = mc13783_gpo_regulator_enable,
> > + .disable = mc13783_gpo_regulator_disable,
> > + .is_enabled = mc13783_gpo_regulator_is_enabled,
>
> How is the voltage output on the GPO regulator governed. Is it
> controlled by a parent regulator or fixed ?
>
> We probably want a way to query the voltage here or specify the parent
> relationship.
Good question.
>From datasheet GPO's are marked as LV (Low Voltage)-> 3.1V
Power Gates Driver are marked as EMV (Extended Medium Voltage) -> 5.5V
and no way to modify that -> they are fixed regulators.
I will add voltage query capability.
next prev parent reply other threads:[~2010-01-19 11:12 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-18 16:02 [PATCH] regulator: mc13783: consider Power Gates as digital regulators Alberto Panizzo
2010-01-18 16:02 ` Alberto Panizzo
2010-01-18 16:32 ` Mark Brown
2010-01-18 16:32 ` Mark Brown
2010-01-18 17:26 ` Alberto Panizzo
2010-01-18 17:26 ` Alberto Panizzo
2010-01-18 17:37 ` Mark Brown
2010-01-18 17:37 ` Mark Brown
[not found] ` <1263834473.3632.31.camel@realization>
[not found] ` <20100118172002.GB6889@rakim.wolfsonmicro.main>
2010-01-18 17:50 ` Alberto Panizzo
2010-01-18 17:50 ` Alberto Panizzo
2010-01-18 17:56 ` Mark Brown
2010-01-18 17:56 ` Mark Brown
2010-01-18 19:04 ` Uwe Kleine-König
2010-01-18 19:04 ` Uwe Kleine-König
2010-01-18 21:01 ` Alberto Panizzo
2010-01-18 21:01 ` Alberto Panizzo
2010-01-19 10:26 ` Liam Girdwood
2010-01-19 10:26 ` Liam Girdwood
2010-01-19 11:12 ` Alberto Panizzo [this message]
2010-01-19 11:12 ` Alberto Panizzo
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