From: Mark Brown <broonie@kernel.org>
To: Marco Felsch <m.felsch@pengutronix.de>
Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
Support Opensource <Support.Opensource@diasemi.com>,
"linux-aspeed@lists.ozlabs.org" <linux-aspeed@lists.ozlabs.org>,
"bgolaszewski@baylibre.com" <bgolaszewski@baylibre.com>,
"andrew@aj.id.au" <andrew@aj.id.au>,
"linus.walleij@linaro.org" <linus.walleij@linaro.org>,
"lgirdwood@gmail.com" <lgirdwood@gmail.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-gpio@vger.kernel.org" <linux-gpio@vger.kernel.org>,
"robh+dt@kernel.org" <robh+dt@kernel.org>,
"joel@jms.id.au" <joel@jms.id.au>,
"kernel@pengutronix.de" <kernel@pengutronix.de>,
Adam Thomson <Adam.Thomson.Opensource@diasemi.com>,
"lee.jones@linaro.org" <lee.jones@linaro.org>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH v3 3/6] dt-bindings: mfd: da9062: add regulator voltage selection documentation
Date: Tue, 7 Jan 2020 13:09:11 +0000 [thread overview]
Message-ID: <20200107130911.GD4877@sirena.org.uk> (raw)
In-Reply-To: <20200107083654.atgbjhrnhyax2gqq@pengutronix.de>
[-- Attachment #1: Type: text/plain, Size: 1223 bytes --]
On Tue, Jan 07, 2020 at 09:36:54AM +0100, Marco Felsch wrote:
> On 19-12-17 12:58, Mark Brown wrote:
> > This doesn't say anything about how the GPIO input is expected to be
> > controlled, for voltage setting any runtime control would need to be
> > done by the driver and it sounds like that's all that can be controlled.
> > The way this reads I'd expect one use of this to be for fast voltage
> > setting for example (you could even combine that with suspend sequencing
> > using the internal sequencer if you mux back to the sequencer during
> > suspend).
> The input signal is routed trough the da9062 gpio block to the
> regualtors. You can't set any voltage value using a gpio instead you
> decide which voltage setting is applied. The voltage values for
> runtime/suspend comes from the dt-data. No it's not just a fast
> switching option imagine the system suspend case where the cpu and soc
> voltage can be reduced to a very low value. Older soc's like the imx6
> signaling this state by a hard wired gpio line because the soc and
> cpu cores don't work properly on such low voltage values. This is
> my use case and I can't use the sequencer.
My point is that I can't tell any of this from the description.
[-- Attachment #2: signature.asc --]
[-- Type: application/pgp-signature, Size: 488 bytes --]
next prev parent reply other threads:[~2020-01-07 13:09 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-29 17:25 [PATCH v3 0/6] DA9062 PMIC features Marco Felsch
2019-11-29 17:25 ` [PATCH v3 1/6] gpio: treewide rename gpio_chip_hwgpio to gpiod_to_offset Marco Felsch
2019-12-02 2:59 ` Andrew Jeffery
2019-11-29 17:25 ` [PATCH v3 2/6] gpio: make gpiod_to_offset() available for other users Marco Felsch
2019-12-02 3:00 ` Andrew Jeffery
2019-11-29 17:25 ` [PATCH v3 3/6] dt-bindings: mfd: da9062: add regulator voltage selection documentation Marco Felsch
2019-12-04 13:46 ` Mark Brown
2019-12-10 9:41 ` Marco Felsch
2019-12-11 16:14 ` Adam Thomson
2019-12-11 17:09 ` Marco Felsch
2019-12-12 15:08 ` Linus Walleij
2019-12-12 15:55 ` Marco Felsch
2019-12-12 16:10 ` Mark Brown
2019-12-12 16:21 ` Marco Felsch
2019-12-12 16:51 ` Mark Brown
2019-12-16 8:55 ` Marco Felsch
2019-12-16 11:44 ` Mark Brown
2019-12-17 7:35 ` Marco Felsch
2019-12-17 12:58 ` Mark Brown
2020-01-07 8:36 ` Marco Felsch
2020-01-07 13:09 ` Mark Brown [this message]
2020-01-07 13:38 ` Marco Felsch
2020-01-14 15:43 ` Mark Brown
2019-12-16 16:32 ` Adam Thomson
2019-12-17 9:00 ` Marco Felsch
2019-12-17 9:12 ` Marco Felsch
2019-12-17 9:53 ` Adam Thomson
2019-12-17 12:31 ` Marco Felsch
2019-12-17 13:13 ` Adam Thomson
2019-12-16 16:32 ` Adam Thomson
2019-12-16 12:28 ` Linus Walleij
2019-11-29 17:25 ` [PATCH v3 4/6] regulator: da9062: add voltage selection gpio support Marco Felsch
2019-11-29 17:25 ` [PATCH v3 5/6] dt-bindings: mfd: da9062: add regulator gpio enable/disable documentation Marco Felsch
2019-12-13 22:23 ` Rob Herring
2019-12-16 16:31 ` Lee Jones
2019-11-29 17:25 ` [PATCH v3 6/6] regulator: da9062: add gpio based regulator dis-/enable support Marco Felsch
2019-12-02 11:44 ` [PATCH v3 0/6] DA9062 PMIC features Linus Walleij
2019-12-02 12:04 ` Lee Jones
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200107130911.GD4877@sirena.org.uk \
--to=broonie@kernel.org \
--cc=Adam.Thomson.Opensource@diasemi.com \
--cc=Support.Opensource@diasemi.com \
--cc=andrew@aj.id.au \
--cc=bgolaszewski@baylibre.com \
--cc=devicetree@vger.kernel.org \
--cc=joel@jms.id.au \
--cc=kernel@pengutronix.de \
--cc=lee.jones@linaro.org \
--cc=lgirdwood@gmail.com \
--cc=linus.walleij@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-aspeed@lists.ozlabs.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=m.felsch@pengutronix.de \
--cc=robh+dt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).