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>
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0ebafefcaa
Коммит
759a2e30d2
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@ -334,7 +334,7 @@ static int mxs_dma_alloc_chan_resources(struct dma_chan *chan)
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goto err_irq;
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}
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ret = clk_enable(mxs_dma->clk);
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ret = clk_prepare_enable(mxs_dma->clk);
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if (ret)
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goto err_clk;
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@ -372,7 +372,7 @@ static void mxs_dma_free_chan_resources(struct dma_chan *chan)
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dma_free_coherent(mxs_dma->dma_device.dev, PAGE_SIZE,
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mxs_chan->ccw, mxs_chan->ccw_phys);
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clk_disable(mxs_dma->clk);
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clk_disable_unprepare(mxs_dma->clk);
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}
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static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg(
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@ -578,7 +578,7 @@ static int __init mxs_dma_init(struct mxs_dma_engine *mxs_dma)
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{
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int ret;
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ret = clk_enable(mxs_dma->clk);
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ret = clk_prepare_enable(mxs_dma->clk);
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if (ret)
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goto err_out;
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@ -604,7 +604,7 @@ static int __init mxs_dma_init(struct mxs_dma_engine *mxs_dma)
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writel(MXS_DMA_CHANNELS_MASK << MXS_DMA_CHANNELS,
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mxs_dma->base + HW_APBHX_CTRL1 + MXS_SET_ADDR);
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clk_disable(mxs_dma->clk);
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clk_disable_unprepare(mxs_dma->clk);
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return 0;
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