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Signed-off-by: Liao Yuanhong --- drivers/dma/uniphier-mdmac.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) diff --git a/drivers/dma/uniphier-mdmac.c b/drivers/dma/uniphier-mdmac.c index ad7125f6e2ca..6b3570440b70 100644 --- a/drivers/dma/uniphier-mdmac.c +++ b/drivers/dma/uniphier-mdmac.c @@ -66,7 +66,6 @@ struct uniphier_mdmac_chan { struct uniphier_mdmac_device { struct dma_device ddev; - struct clk *clk; void __iomem *reg_base; struct uniphier_mdmac_chan channels[]; }; @@ -383,6 +382,7 @@ static int uniphier_mdmac_probe(struct platform_device *pdev) struct uniphier_mdmac_device *mdev; struct dma_device *ddev; int nr_chans, ret, i; + struct clk *clk; nr_chans = platform_irq_count(pdev); if (nr_chans < 0) @@ -401,16 +401,12 @@ static int uniphier_mdmac_probe(struct platform_device *pdev) if (IS_ERR(mdev->reg_base)) return PTR_ERR(mdev->reg_base); - mdev->clk = devm_clk_get(dev, NULL); - if (IS_ERR(mdev->clk)) { + clk = devm_clk_get_enabled(dev, NULL); + if (IS_ERR(clk)) { dev_err(dev, "failed to get clock\n"); - return PTR_ERR(mdev->clk); + return PTR_ERR(clk); } - ret = clk_prepare_enable(mdev->clk); - if (ret) - return ret; - ddev = &mdev->ddev; ddev->dev = dev; dma_cap_set(DMA_PRIVATE, ddev->cap_mask); @@ -429,12 +425,12 @@ static int uniphier_mdmac_probe(struct platform_device *pdev) for (i = 0; i < nr_chans; i++) { ret = uniphier_mdmac_chan_init(pdev, mdev, i); if (ret) - goto disable_clk; + return ret; } ret = dma_async_device_register(ddev); if (ret) - goto disable_clk; + return ret; ret = of_dma_controller_register(dev->of_node, of_dma_xlate_by_chan_id, ddev); @@ -447,9 +443,6 @@ static int uniphier_mdmac_probe(struct platform_device *pdev) unregister_dmac: dma_async_device_unregister(ddev); -disable_clk: - clk_disable_unprepare(mdev->clk); - return ret; } @@ -482,7 +475,6 @@ static void uniphier_mdmac_remove(struct platform_device *pdev) of_dma_controller_free(pdev->dev.of_node); dma_async_device_unregister(&mdev->ddev); - clk_disable_unprepare(mdev->clk); } static const struct of_device_id uniphier_mdmac_match[] = {