From: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
To: Rob Herring <robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
Cc: Akinobu Mita
<akinobu.mita-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Sergey Yanovich <ynvich-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Alessandro Zummo
<a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org>
Subject: Re: [PATCH v2 2/2] rtc: ds1302: support control with using GPIO lines
Date: Fri, 8 Jul 2016 16:28:53 +0200 [thread overview]
Message-ID: <20160708142853.GJ22202@piout.net> (raw)
In-Reply-To: <20160628205704.GT3737@rob-hp-laptop>
On 28/06/2016 at 15:57:04 -0500, Rob Herring wrote :
> On Mon, Jun 27, 2016 at 08:19:22PM +0900, Akinobu Mita wrote:
> > This adds support control with GPIO lines connected to the DS1302
> > which can communicate with three wires.
> >
> > Signed-off-by: Akinobu Mita <akinobu.mita-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > Cc: Sergey Yanovich <ynvich-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
> > Cc: Alessandro Zummo <a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org>
> > Cc: Alexandre Belloni <alexandre.belloni-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
> > ---
> > .../devicetree/bindings/rtc/maxim-ds1302.txt | 13 +
> > drivers/rtc/Kconfig | 17 +-
> > drivers/rtc/rtc-ds1302.c | 320 ++++++++++++++++++++-
> > 3 files changed, 331 insertions(+), 19 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/rtc/maxim-ds1302.txt b/Documentation/devicetree/bindings/rtc/maxim-ds1302.txt
> > index ba470c5..d489753 100644
> > --- a/Documentation/devicetree/bindings/rtc/maxim-ds1302.txt
> > +++ b/Documentation/devicetree/bindings/rtc/maxim-ds1302.txt
> > @@ -27,6 +27,12 @@ Required SPI properties:
> > - spi-cs-high: DS-1302 has active high chip select line. This is
> > required unless inverted in hardware.
> >
> > +Required properties when using GPIO lines:
> > +
> > +- gpio-ce: GPIO connected to CE pin
> > +- gpio-io: GPIO connected to I/O pin
> > +- gpio-reset: GPIO connected to SCLK pin
> > +
>
> IIRC, we got rid of the direct gpio bit-banging in this driver (or a
> similar one) and replaced it with SPI GPIO driver. We should do that
> here.
>
Well, the fact is that it is not actually SPI but microwire which has
different timings and we didn't reach a conclusion yet with Mark.
--
Alexandre Belloni, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
--
You received this message because you are subscribed to "rtc-linux".
Membership options at http://groups.google.com/group/rtc-linux .
Please read http://groups.google.com/group/rtc-linux/web/checklist
before submitting a driver.
---
You received this message because you are subscribed to the Google Groups "rtc-linux" group.
To unsubscribe from this group and stop receiving emails from it, send an email to rtc-linux+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
For more options, visit https://groups.google.com/d/optout.
prev parent reply other threads:[~2016-07-08 14:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-27 11:19 [PATCH v2 0/2] support control with using GPIO lines Akinobu Mita
[not found] ` <1467026362-29446-1-git-send-email-akinobu.mita-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-06-27 11:19 ` [PATCH v2 1/2] rtc: ds1302: add register access abstraction layer Akinobu Mita
[not found] ` <1467026362-29446-2-git-send-email-akinobu.mita-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-06-27 11:50 ` Sergei Ianovich
[not found] ` <1467028249.3182.11.camel-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-06-27 12:44 ` Alexandre Belloni
[not found] ` <20160627124432.GI29249-m++hUPXGwpdeoWH0uzbU5w@public.gmane.org>
2016-06-27 12:45 ` Alexandre Belloni
2016-06-27 15:15 ` Sergei Ianovich
[not found] ` <1467040517.3182.34.camel-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-07-19 15:13 ` Alexandre Belloni
[not found] ` <20160719151314.GH7132-m++hUPXGwpdeoWH0uzbU5w@public.gmane.org>
2016-07-27 18:47 ` Mark Brown
2016-06-27 11:19 ` [PATCH v2 2/2] rtc: ds1302: support control with using GPIO lines Akinobu Mita
[not found] ` <1467026362-29446-3-git-send-email-akinobu.mita-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-06-28 20:57 ` Rob Herring
2016-07-08 14:28 ` Alexandre Belloni [this message]
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=20160708142853.GJ22202@piout.net \
--to=alexandre.belloni-wi1+55scjutkeb57/3fjtnbpr1lh4cv8@public.gmane.org \
--cc=a.zummo-BfzFCNDTiLLj+vYz1yj4TQ@public.gmane.org \
--cc=akinobu.mita-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org \
--cc=rtc-linux-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org \
--cc=ynvich-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.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).