[PATCH 04/12] dma: mxs-dma: convert to clk_prepare/clk_unprepare

[Marek Vasut]

> 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 at linaro.org>
> Cc: Vinod Koul <vinod.koul at intel.com>
> ---
>  drivers/dma/mxs-dma.c |    8 ++++----
>  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;

Acked-by: Marek Vasut <marek.vasut at gmail.com>