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Date: Mon, 20 Oct 2008 10:11:27 +0100
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
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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.

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