From: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Date: Mon, 20 Aug 2007 20:42:57 +0000 (+0200)
Subject: hpt34x: fix CONFIG_HPT34X_AUTODMA=n handling
X-Git-Tag: v2.6.23-rc4~102^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=76e1faa7cfd464fa06a9c2cafd633d643daafeae;p=pandora-kernel.git

hpt34x: fix CONFIG_HPT34X_AUTODMA=n handling

Programming DMA mode may destroy current PIO mode setting so if
CONFIG_HPT34X_AUTODMA=n (the default case) make ide_tune_dma() fail
early by disabling all host DMA masks and re-tune PIO mode.

This fix doesn't help with the driver being broken but is needed
for some other changes.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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