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From: Yuli Barcohen <yuli@arabellasw.com>
To: Grant Likely <glikely@gmail.com>
Cc: linuxppc-embedded@ozlabs.org
Subject: Re: [PATCH 0/3] Support for SPI busses and devices
Date: Mon, 25 Jul 2005 12:48:25 +0300	[thread overview]
Message-ID: <17124.46441.807442.139506@astp0002.localdomain> (raw)
In-Reply-To: <528646bc050723070419b8f914@mail.gmail.com>

>>>>> Grant Likely writes:

    Grant> Request for Comment: Here is a set of patches that adds SPI
    Grant> support to linux.  I'm looking for feedback on these and I'd
    Grant> like to eventually get the SPI infrastructure into mainline

[...deleted...]

SPI is very similar to I2C IMHO. I'm not sure separate infrastructure is
needed. We support SPI on MPC8xx/82xx/85xx using the standard I2C
infrastructure. I only had to add a couple of IOCTLs to control clock
frequency and polarity. Due to such an implementation, lm-sensors work
OK with SPI temperature sensors, for example.

-- 
========================================================================
 Yuli Barcohen       | Phone +972-9-765-1788 |  Software Project Leader
 yuli@arabellasw.com | Fax   +972-9-765-7494 | Arabella Software, Israel
========================================================================

  parent reply	other threads:[~2005-07-25  9:48 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-07-23 14:04 [PATCH 0/3] Support for SPI busses and devices Grant Likely
2005-07-23 14:30 ` Matt Porter
2005-07-25  9:48 ` Yuli Barcohen [this message]
2005-07-25 10:39   ` Kate Alhola
2005-07-25 13:54     ` Yuli Barcohen
2005-07-28 17:25       ` Grant Likely
2005-08-03 12:38         ` Yuli Barcohen
2005-08-04  8:07           ` Kate Alhola
2005-08-04 14:45             ` Yuli Barcohen

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