From: Leon Woestenberg <leon.woestenberg@gmail.com>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: spi-devel-general@lists.sourceforge.net,
Rini van Zetten <rini@arvoo.nl>,
linuxppc-dev list <Linuxppc-dev@ozlabs.org>
Subject: Re: [PATCH -mm][POWERPC] mpc8xxx : allow SPI without cs.
Date: Fri, 19 Jun 2009 13:45:46 +0200 [thread overview]
Message-ID: <c384c5ea0906190445u130a4fedv14c22c7f9abdb9d8@mail.gmail.com> (raw)
In-Reply-To: <EEB9B7B7-5456-4AE9-8BB9-96DA04320697@kernel.crashing.org>
Hello,
On Thu, Jun 18, 2009 at 4:04 PM, Kumar Gala<galak@kernel.crashing.org> wrot=
e:
> On Jun 18, 2009, at 8:09 AM, Anton Vorontsov wrote:
>> On Thu, Jun 18, 2009 at 08:19:44AM +0200, Rini van Zetten wrote:
>>>
>>> This patch adds the possibility to have a spi device without a cs.
>>>
> That is a good question. =A0What HW is this for (I don't think its for eS=
PI
> but I could be wrong).
>
We need SPI without CS too on our MPC8313E design.
In our case having a CS line to each slave (18 of them) is too
expensive and we use a chip select which piggy backs on another
signal.
Once the slave is selected, SPI is used to send large amounts of data.
Regards,
--=20
Leon
next prev parent reply other threads:[~2009-06-19 11:45 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-18 6:19 [PATCH -mm][POWERPC] mpc8xxx : allow SPI without cs Rini van Zetten
2009-06-18 12:42 ` Kumar Gala
2009-06-18 13:09 ` Anton Vorontsov
2009-06-18 14:04 ` Kumar Gala
2009-06-19 7:26 ` [PATCH -mm v3][POWERPC] " Rini van Zetten
2009-06-19 7:45 ` Kumar Gala
2009-06-19 11:16 ` Rini van Zetten
2009-06-19 13:45 ` Anton Vorontsov
2009-06-19 14:18 ` [PATCH -mm v4][POWERPC] " Rini van Zetten
2009-07-03 1:38 ` [spi-devel-general] " David Brownell
2009-06-19 11:45 ` Leon Woestenberg [this message]
2009-06-19 13:25 ` [PATCH -mm][POWERPC] " Anton Vorontsov
2009-06-19 15:31 ` Grant Likely
-- strict thread matches above, loose matches on Subject: below --
2009-06-11 9:10 [PATCH][POWERPC] mpc83xx " Rini van Zetten
2009-06-11 13:29 ` Kumar Gala
2009-06-12 8:59 ` [PATCH -mm][POWERPC] mpc8xxx " Rini van Zetten
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