From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 13 Dec 2013 23:16:23 +0000 (+0100)
Subject: dma: pl08x: allow zero slave channels
X-Git-Tag: v3.14-rc1~48^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1080411c6bf9da8e815292ccdb22f64662a38bb2;p=pandora-kernel.git

dma: pl08x: allow zero slave channels

It might happen that a platform wants to use its DMA engine for
memcpy only, and then we have zero slave channels to initialize,
so allow the slave initialization to return zero.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
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