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From: Rini van Zetten <rini@arvoo.nl>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: spi-devel-general@lists.sourceforge.net,
	linuxppc-dev list <Linuxppc-dev@ozlabs.org>
Subject: Re: [PATCH -mm v3][POWERPC] mpc8xxx : allow SPI without cs.
Date: Fri, 19 Jun 2009 13:16:08 +0200	[thread overview]
Message-ID: <4A3B7378.8050003@arvoo.nl> (raw)
In-Reply-To: <292C3A97-D618-460C-BE3F-B8770F63C2E3@kernel.crashing.org>

> 
> On Jun 19, 2009, at 2:26 AM, Rini van Zetten wrote:
> 
>> This patch adds the possibility to have a spi device without a cs.
>>
>> For example, the dts file should look something like this:
>>
>> spi-controller {
>>       gpios = <&pio1 1 0      /* cs0 */
>>                0              /* cs1, no GPIO */
>>                &pio2 2 0>;    /* cs2 */
>>
>> Signed-off-by: Rini van Zetten <rini@arvoo.nl>
>> ---
>> Changes :
>>     patch against 2.6.30-rc8-mm1
>>     style updates
>>     compiler warning fix
>> comment :
>>     This feature is needed on our home made board to program an 
>> onboard fpga.
>>     The fpga needs some special pin toggling to put it in programming 
>> mode.
>>     That's why we want to skip the usual gpio cs and do the pin toggling
>>     in our driver
>>     
> 
> Which FSL chip are you using?

We use the MPC8377E

Rini

> 
> - k
> 
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@lists.ozlabs.org
> https://lists.ozlabs.org/listinfo/linuxppc-dev

-- 
Rini van Zetten
Senior Software Engineer

-------------------------
ARVOO Engineering B.V.
Tasveld 13
3417 XS Montfoort
The Netherlands

E-mail : <mailto:rini@arvoo.com> Rini van Zetten

Web : www.arvoo.com

  reply	other threads:[~2009-06-19 11:16 UTC|newest]

Thread overview: 13+ 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 [this message]
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     ` [PATCH -mm][POWERPC] " Leon Woestenberg
2009-06-19 13:25       ` Anton Vorontsov
2009-06-19 15:31         ` Grant Likely

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