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| author | Boris BREZILLON <b.brezillon@overkiz.com> | 2013-06-19 13:14:54 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2013-07-05 11:40:57 +0530 |
| commit | f784d9c90469d75a9f7a38c1568f47e95ae504ca (patch) | |
| tree | 1ab9f2905dfe2bd8e02a15ee076ca0c78661a944 /drivers/dma/at_hdmac.c | |
| parent | c3dbc60c9b2510fee6cea9b77b89a7708bf98bd3 (diff) | |
| download | op-kernel-dev-f784d9c90469d75a9f7a38c1568f47e95ae504ca.zip op-kernel-dev-f784d9c90469d75a9f7a38c1568f47e95ae504ca.tar.gz | |
dmaengine: at_hdmac: prepare clk before calling enable
Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to
avoid common clk framework warnings.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
[nicolas.ferre@atmel.com: remove return code checking in at_dma_resume_noirq()]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Diffstat (limited to 'drivers/dma/at_hdmac.c')
| -rw-r--r-- | drivers/dma/at_hdmac.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index 3e070d2..c787f38 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -1460,7 +1460,9 @@ static int __init at_dma_probe(struct platform_device *pdev) err = PTR_ERR(atdma->clk); goto err_clk; } - clk_enable(atdma->clk); + err = clk_prepare_enable(atdma->clk); + if (err) + goto err_clk_prepare; /* force dma off, just in case */ at_dma_off(atdma); @@ -1560,7 +1562,8 @@ err_of_dma_controller_register: err_pool_create: free_irq(platform_get_irq(pdev, 0), atdma); err_irq: - clk_disable(atdma->clk); + clk_disable_unprepare(atdma->clk); +err_clk_prepare: clk_put(atdma->clk); err_clk: iounmap(atdma->regs); @@ -1596,7 +1599,7 @@ static int at_dma_remove(struct platform_device *pdev) list_del(&chan->device_node); } - clk_disable(atdma->clk); + clk_disable_unprepare(atdma->clk); clk_put(atdma->clk); iounmap(atdma->regs); @@ -1615,7 +1618,7 @@ static void at_dma_shutdown(struct platform_device *pdev) struct at_dma *atdma = platform_get_drvdata(pdev); at_dma_off(platform_get_drvdata(pdev)); - clk_disable(atdma->clk); + clk_disable_unprepare(atdma->clk); } static int at_dma_prepare(struct device *dev) @@ -1672,7 +1675,7 @@ static int at_dma_suspend_noirq(struct device *dev) /* disable DMA controller */ at_dma_off(atdma); - clk_disable(atdma->clk); + clk_disable_unprepare(atdma->clk); return 0; } @@ -1702,7 +1705,7 @@ static int at_dma_resume_noirq(struct device *dev) struct dma_chan *chan, *_chan; /* bring back DMA controller */ - clk_enable(atdma->clk); + clk_prepare_enable(atdma->clk); dma_writel(atdma, EN, AT_DMA_ENABLE); /* clear any pending interrupt */ |
