linux-kernel - Re: [PATCH 1/7] mmc_spi: allow setting of spi mode 3

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Date:	Sun, 15 Mar 2009 12:20:11 +0100
From:	Pierre Ossman <drzeus@...eus.cx>
To:	Maxim Levitsky <maximlevitsky@...il.com>
Cc:	Wolfgang Mües <wolfgang.mues@...rswald.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Matt Fleming <matt@...sole-pimps.org>,
	David Brownell <dbrownell@...rs.sourceforge.net>,
	Mike Frysinger <vapier.adi@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/7] mmc_spi: allow setting of spi mode 3

On Thu, 12 Mar 2009 14:50:32 +0200
Maxim Levitsky <maximlevitsky@...il.com> wrote:

> Small question:
> 
> Do linux SDHCI driver support SD 4 wire mode?
> 
> Or it uses the SPI mode.
> 

I think you've managed to confuse yourself pretty good here. :)

This is a patch for the mmc_spi driver, which surprisingly enough is
for operating MMC/SD cards in SPI mode. ;)

The sdhci driver is completely unrelated (but yes, it supports 4-bit
mode).

Rgds
-- 
     -- Pierre Ossman

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