From: Aries Lee <arieslee@jmicron.com>
Date: Wed, 15 Dec 2010 07:14:24 +0000 (+0100)
Subject: mmc: Test bus-width for old MMC devices
X-Git-Tag: v2.6.38-rc1~418^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=22113efd00491310da802f3b1a9a66cfcf415fac;p=pandora-kernel.git

mmc: Test bus-width for old MMC devices

Some old MMC devices fail with the 4/8 bits the driver tries to use
exclusively.  This patch adds a test for the given bus setup and falls
back to the lower bit mode (until 1-bit mode) when the test fails.

[Major rework and refactoring by tiwai]
[Quirk addition and many fixes by prakity]

Signed-off-by: Aries Lee <arieslee@jmicron.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Philip Rakity <prakity@marvell.com>
Tested-by: Philip Rakity <prakity@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---

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