mmc: mxcmmc: fix falling back to PIO
authorSascha Hauer <s.hauer@pengutronix.de>
Fri, 11 Nov 2011 15:28:05 +0000 (16:28 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 21 Dec 2011 20:58:31 +0000 (12:58 -0800)
commit572b113fe89287f81dad1a0f9057d48e0b17e910
tree7bc45f4519f35f2f73b696338b3fa14d8102d3d6
parentf986d9886478c6761c9cc3f44cbe15f96db5d6e1
mmc: mxcmmc: fix falling back to PIO

commit e58f516ff4730c4047c3f104b061f7a03e9a263c upstream.

When we can't configure the dma channel we want to fall
back to PIO. We do this by setting host->do_dma to zero.
This does not work as do_dma is used to see whether dma
can be used for the current transfer. Instead, we have
to set host->dma to NULL.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/mmc/host/mxcmmc.c