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authorShawn Guo <shawn.guo@linaro.org>2011-12-20 13:54:00 +0800
committerShawn Guo <shawn.guo@linaro.org>2011-12-28 21:29:30 +0800
commit759a2e30d288032130f1f77092e72d4ec87ad4d0 (patch)
treefa6e62b3823eddd4251a830a8d79c31ef305e0a2 /drivers/dma
parent0ebafefcaa7a383b728d977a718e23e69ce84050 (diff)
downloadop-kernel-dev-759a2e30d288032130f1f77092e72d4ec87ad4d0.zip
op-kernel-dev-759a2e30d288032130f1f77092e72d4ec87ad4d0.tar.gz
dma: mxs-dma: convert to clk_prepare/clk_unprepare
The patch converts mxs-dma driver to clk_prepare/clk_unprepare by using helper functions clk_prepare_enable/clk_disable_unprepare. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Marek Vasut <marek.vasut@gmail.com> Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/mxs-dma.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index b4588bd..fc903c0 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -334,7 +334,7 @@ static int mxs_dma_alloc_chan_resources(struct dma_chan *chan)
goto err_irq;
}
- ret = clk_enable(mxs_dma->clk);
+ ret = clk_prepare_enable(mxs_dma->clk);
if (ret)
goto err_clk;
@@ -372,7 +372,7 @@ static void mxs_dma_free_chan_resources(struct dma_chan *chan)
dma_free_coherent(mxs_dma->dma_device.dev, PAGE_SIZE,
mxs_chan->ccw, mxs_chan->ccw_phys);
- clk_disable(mxs_dma->clk);
+ clk_disable_unprepare(mxs_dma->clk);
}
static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg(
@@ -578,7 +578,7 @@ static int __init mxs_dma_init(struct mxs_dma_engine *mxs_dma)
{
int ret;
- ret = clk_enable(mxs_dma->clk);
+ ret = clk_prepare_enable(mxs_dma->clk);
if (ret)
goto err_out;
@@ -604,7 +604,7 @@ static int __init mxs_dma_init(struct mxs_dma_engine *mxs_dma)
writel(MXS_DMA_CHANNELS_MASK << MXS_DMA_CHANNELS,
mxs_dma->base + HW_APBHX_CTRL1 + MXS_SET_ADDR);
- clk_disable(mxs_dma->clk);
+ clk_disable_unprepare(mxs_dma->clk);
return 0;
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