From: David Brownell <david-b@pacbell.net>
To: "Grant Likely" <grant.likely@secretlab.ca>
Cc: spi-devel-general@lists.sourceforge.net,
"Segher Boessenkool" <segher@kernel.crashing.org>,
linux-kernel@vger.kernel.org, linuxppc-dev@ozlabs.org,
fabrizio.garetto@gmail.com,
"Guennadi Liakhovetski" <g.liakhovetski@gmx.de>
Subject: Re: [spi-devel-general] [PATCH 3/4] spi: Add OF binding support for SPI busses
Date: Sat, 24 May 2008 00:13:27 -0700 [thread overview]
Message-ID: <200805240013.28044.david-b@pacbell.net> (raw)
In-Reply-To: <fa686aa40805232325w65d4f706i50798121a8cce263@mail.gmail.com>
On Friday 23 May 2008, Grant Likely wrote:
> Very good point. Okay, so we cannot assume any correlation between
> the number of CS lines and the number of child nodes to the SPI bus.
That wasn't what I was implying ... all the devices hooked
up to a given chipselect should be viewed as a single (albeit
composite) child node.
Now, the driver for that child node may want to expose lots
of substructure. But that's no different from any other
complex device, whose protocol happens to embed some notion
of component addressing.
It's just that in the case I mentioned, that addressing is
a bit more externally visible than it is in some other cases.
- Dave
next prev parent reply other threads:[~2008-05-24 16:50 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-16 19:35 [RFC PATCH 0/4] Describe SPI devices in the OF device tree and add mpc5200-spi driver Grant Likely
2008-05-16 19:36 ` [PATCH 1/4] spi: Change modalias from a pointer to a character array Grant Likely
2008-05-16 19:36 ` [PATCH 2/4] spi: split up spi_new_device() to allow two stage registration Grant Likely
2008-05-22 0:17 ` David Brownell
2008-05-24 6:43 ` Grant Likely
2008-05-24 6:54 ` Grant Likely
2008-06-30 4:08 ` David Brownell
2008-06-17 7:28 ` Grant Likely
2008-06-30 4:10 ` David Brownell
2008-05-16 19:36 ` [PATCH 3/4] spi: Add OF binding support for SPI busses Grant Likely
2008-05-16 20:47 ` Randy Dunlap
2008-05-16 20:51 ` Grant Likely
2008-05-16 22:03 ` Anton Vorontsov
2008-05-16 22:14 ` Grant Likely
2008-05-16 22:49 ` Anton Vorontsov
2008-05-17 5:02 ` Grant Likely
2008-05-22 1:16 ` David Brownell
2008-05-24 6:24 ` Grant Likely
2008-05-19 13:17 ` Guennadi Liakhovetski
2008-05-19 15:57 ` Grant Likely
2008-05-19 16:30 ` Guennadi Liakhovetski
2008-05-20 5:13 ` Grant Likely
2008-05-20 15:26 ` Guennadi Liakhovetski
2008-05-20 15:48 ` Grant Likely
2008-05-21 19:11 ` Segher Boessenkool
2008-05-21 19:33 ` Grant Likely
2008-05-23 2:26 ` [spi-devel-general] " David Brownell
2008-05-24 6:25 ` Grant Likely
2008-05-24 7:13 ` David Brownell [this message]
2008-05-19 17:09 ` Gary Jennejohn
2008-05-19 17:19 ` Anton Vorontsov
2008-05-21 15:19 ` Anton Vorontsov
2008-05-23 2:05 ` David Brownell
2008-05-24 6:26 ` Grant Likely
2008-05-24 16:50 ` Grant Likely
2008-05-24 17:14 ` Jochen Friedrich
2008-05-24 17:33 ` Grant Likely
2008-05-24 17:45 ` David Brownell
2008-05-25 4:56 ` Grant Likely
2008-05-24 17:43 ` David Brownell
2008-05-16 19:36 ` [PATCH 4/4] [CSB] Add new mpc5200-spi (non-psc) device driver Grant Likely
2008-05-16 19:42 ` Grant Likely
2008-05-16 20:27 ` [RFC PATCH 0/4] Describe SPI devices in the OF device tree and add mpc5200-spi driver Jon Smirl
2008-05-16 20:48 ` Grant Likely
2008-05-16 21:25 ` Jon Smirl
2008-05-16 21:32 ` Grant Likely
2008-05-16 21:42 ` Jon Smirl
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