From 8cd118308a8649c649533a0133af0ce731d223bb Mon Sep 17 00:00:00 2001
From: Micky Ching <micky_ching@realsil.com.cn>
Date: Fri, 6 Jun 2014 15:05:44 +0800
Subject: [PATCH] mfd: rtsx: Add dma transfer function

rtsx driver using a single function for transfer data, dma map/unmap are
placed in one fix function. We need map/unmap dma in different place(for
mmc async driver), so add three function for dma map, dma transfer and
dma unmap.

Signed-off-by: Micky Ching <micky_ching@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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