From: Viresh Kumar <viresh.kumar@st.com>
Date: Fri, 5 Aug 2011 10:02:34 +0000 (+0530)
Subject: dmaengine/amba-pl08x: Simplify pl08x_ensure_on()
X-Git-Tag: v3.2-rc1~47^2~18^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=48a59ef3579492855d41405f8bf0a2983e061976;p=pandora-kernel.git

dmaengine/amba-pl08x: Simplify pl08x_ensure_on()

Simply writing 1 on bit 0 is sufficient instead of reading and clearing bits.
Also as per manual, for bit 3-31 of DMACConfiguration register:
"read undefined, write as 0"

So, we must not rely on values read from this registers bit 3-31.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---

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