From: Andrew Jackson <Andrew.Jackson@arm.com>
Date: Fri, 7 Nov 2014 14:14:47 +0000 (+0000)
Subject: serial: pl011: Don't enable RX DMA if residue processing not supported
X-Git-Tag: omap-for-v3.19/fixes-rc1~86^2~42
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2d3b7d6e7dc8785f9a6c0e4d38188dd1a0859d11;p=pandora-kernel.git

serial: pl011: Don't enable RX DMA if residue processing not supported

If the DMA engine doesn't support residue processing then the RX DMA
handling won't work terribly well if polling is enabled.  So, disable
RX DMA if residue handling isn't available.

Signed-off-by: Andrew Jackson <Andrew.Jackson@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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