This patch modifies s3c64xx DMA driver to prepare and unprepare clocks
in addition to enableind and disabling, since it is required by common
clock framework.
Signed-off-by: NTomasz Figa <tomasz.figa@gmail.com>
Tested-by: NMark Brown <broonie@linaro.org>
Signed-off-by: NKukjin Kim <kgene.kim@samsung.com>