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From: Ben Dooks <ben-linux@fluff.org>
To: David Brownell <david-b@pacbell.net>
Cc: Magnus Damm <magnus.damm@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
spi-devel-general@lists.sourceforge.net,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [spi-devel-general] [patch 2.6.27-git] spi_gpio driver
Date: Mon, 20 Oct 2008 10:11:27 +0100 [thread overview]
Message-ID: <20081020091127.GA4413@trinity.fluff.org> (raw)
In-Reply-To: <200810192124.36402.david-b@pacbell.net>
On Sun, Oct 19, 2008 at 09:24:36PM -0700, David Brownell wrote:
> From: David Brownell <dbrownell@users.sourceforge.net>
>
> Generalize the old at91rm9200 "bootstrap" bitbanging SPI master driver
> as "spi_gpio", so it works with arbitrary GPIOs and can be configured
> through platform_data. Such SPI masters support:
>
> - any number of bus instances (bus_num is the platform_device.id)
> - any number of chipselects (one GPIO per spi_device)
> - all four SPI_MODE values, and SPI_CS_HIGH
> - i/o word sizes from 1 to 32 bits;
> - devices configured as with any other spi_master controller
Probably worth looking at removing the s3c24xx gpio specific driver and
replacing it with this.
--
Ben
Q: What's a light-year?
A: One-third less calories than a regular year.
next prev parent reply other threads:[~2008-10-20 8:11 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-20 19:46 [PATCH v3] Add SPI over GPIO driver Michael Buesch
2008-10-17 3:14 ` Magnus Damm
2008-10-17 8:52 ` Michael Buesch
2008-10-17 9:52 ` Magnus Damm
2008-10-17 11:18 ` Michael Buesch
2008-10-18 4:36 ` Andrew Morton
2008-10-18 9:32 ` Michael Buesch
2008-10-18 20:41 ` Piotr Skamruk
2008-10-18 20:54 ` David Brownell
2008-10-20 2:44 ` Magnus Damm
2008-10-20 4:16 ` David Brownell
2008-10-20 9:48 ` Michael Buesch
2008-10-20 4:24 ` [patch 2.6.27-git] spi_gpio driver David Brownell
2008-10-20 9:11 ` Ben Dooks [this message]
2008-10-20 8:37 ` [spi-devel-general] " David Brownell
2008-10-21 12:40 ` Magnus Damm
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