From: Anton Vorontsov <avorontsov@ru.mvista.com>
To: "Stepanov, Sergej" <Sergej.Stepanov@ids.de>
Cc: "linuxppc-dev@ozlabs.org" <linuxppc-dev@ozlabs.org>
Subject: Re: mmc_spi with GPIO_MODE_3
Date: Fri, 31 Oct 2008 16:45:43 +0300 [thread overview]
Message-ID: <20081031134542.GA4875@oksana.dev.rtsoft.ru> (raw)
In-Reply-To: <4206182445660643B9AEB8D4E55BBD0A17724C7E@HERMES2>
On Fri, Oct 31, 2008 at 01:49:31PM +0100, Stepanov, Sergej wrote:
> Hello Anton,
>
> could you say me please, would the mmc_spi-driver function with GPIO_MODE_3?
You mean SPI_MODE_3? Well, it should work, or even better it shouldn't
matter if it is 3 or 0. See Pierre's answer:
http://www.mail-archive.com/spi-devel-general@lists.sourceforge.net/msg00160.html
But in reality MODE_0 works better.
http://www.mail-archive.com/spi-devel-general@lists.sourceforge.net/msg00155.html
http://www.mail-archive.com/spi-devel-general@lists.sourceforge.net/msg00231.html
IIRC nobody knows why exactly this happens, or better, nobody bothered
to investigate, since MODE_0 works OK. ;-)
> I have seen in mmc_spi_probe() this spi->mode = SPI_MODE_0.
> What should come back if i have CI and CP other then in SPI_MODE_0?
Something like this I suppose:
http://www.mail-archive.com/spi-devel-general@lists.sourceforge.net/msg00153.html
--
Anton Vorontsov
email: cbouatmailru@gmail.com
irc://irc.freenode.net/bd2
next prev parent reply other threads:[~2008-10-31 13:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-31 12:49 mmc_spi with GPIO_MODE_3 Stepanov, Sergej
2008-10-31 13:45 ` Anton Vorontsov [this message]
2008-10-31 15:16 ` AW: " Stepanov, Sergej
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=20081031134542.GA4875@oksana.dev.rtsoft.ru \
--to=avorontsov@ru.mvista.com \
--cc=Sergej.Stepanov@ids.de \
--cc=linuxppc-dev@ozlabs.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).