| Message ID | 20240830094118.15458-6-liaoyuanhong@vivo.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | dmaengine:Use devm_clk_get_enabled() helpers | expand |
On Fri, Aug 30, 2024 at 05:41:16PM +0800, Liao Yuanhong wrote: > Use devm_clk_get_prepared() instead of clk functions in imx-sdma. > > Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com> Reviewed-by: Frank Li <Frank.Li@nxp.com> > --- > v2:remove all enable related modifications, replace clk_prepare() with > devm_clk_get_prepared() > --- > drivers/dma/imx-sdma.c | 22 ++++------------------ > 1 file changed, 4 insertions(+), 18 deletions(-) > > diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c > index 72299a08af44..07a017c40a82 100644 > --- a/drivers/dma/imx-sdma.c > +++ b/drivers/dma/imx-sdma.c > @@ -2266,33 +2266,25 @@ static int sdma_probe(struct platform_device *pdev) > if (IS_ERR(sdma->regs)) > return PTR_ERR(sdma->regs); > > - sdma->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); > + sdma->clk_ipg = devm_clk_get_prepared(&pdev->dev, "ipg"); > if (IS_ERR(sdma->clk_ipg)) > return PTR_ERR(sdma->clk_ipg); > > - sdma->clk_ahb = devm_clk_get(&pdev->dev, "ahb"); > + sdma->clk_ahb = devm_clk_get_prepared(&pdev->dev, "ahb"); > if (IS_ERR(sdma->clk_ahb)) > return PTR_ERR(sdma->clk_ahb); > > - ret = clk_prepare(sdma->clk_ipg); > - if (ret) > - return ret; > - > - ret = clk_prepare(sdma->clk_ahb); > - if (ret) > - goto err_clk; > - > ret = devm_request_irq(&pdev->dev, irq, sdma_int_handler, 0, > dev_name(&pdev->dev), sdma); > if (ret) > - goto err_irq; > + return ret; > > sdma->irq = irq; > > sdma->script_addrs = kzalloc(sizeof(*sdma->script_addrs), GFP_KERNEL); > if (!sdma->script_addrs) { > ret = -ENOMEM; > - goto err_irq; > + return ret; > } > > /* initially no scripts available */ > @@ -2407,10 +2399,6 @@ static int sdma_probe(struct platform_device *pdev) > dma_async_device_unregister(&sdma->dma_device); > err_init: > kfree(sdma->script_addrs); > -err_irq: > - clk_unprepare(sdma->clk_ahb); > -err_clk: > - clk_unprepare(sdma->clk_ipg); > return ret; > } > > @@ -2422,8 +2410,6 @@ static void sdma_remove(struct platform_device *pdev) > devm_free_irq(&pdev->dev, sdma->irq, sdma); > dma_async_device_unregister(&sdma->dma_device); > kfree(sdma->script_addrs); > - clk_unprepare(sdma->clk_ahb); > - clk_unprepare(sdma->clk_ipg); > /* Kill the tasklet */ > for (i = 0; i < MAX_DMA_CHANNELS; i++) { > struct sdma_channel *sdmac = &sdma->channel[i]; > -- > 2.25.1 >
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 72299a08af44..07a017c40a82 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -2266,33 +2266,25 @@ static int sdma_probe(struct platform_device *pdev) if (IS_ERR(sdma->regs)) return PTR_ERR(sdma->regs); - sdma->clk_ipg = devm_clk_get(&pdev->dev, "ipg"); + sdma->clk_ipg = devm_clk_get_prepared(&pdev->dev, "ipg"); if (IS_ERR(sdma->clk_ipg)) return PTR_ERR(sdma->clk_ipg); - sdma->clk_ahb = devm_clk_get(&pdev->dev, "ahb"); + sdma->clk_ahb = devm_clk_get_prepared(&pdev->dev, "ahb"); if (IS_ERR(sdma->clk_ahb)) return PTR_ERR(sdma->clk_ahb); - ret = clk_prepare(sdma->clk_ipg); - if (ret) - return ret; - - ret = clk_prepare(sdma->clk_ahb); - if (ret) - goto err_clk; - ret = devm_request_irq(&pdev->dev, irq, sdma_int_handler, 0, dev_name(&pdev->dev), sdma); if (ret) - goto err_irq; + return ret; sdma->irq = irq; sdma->script_addrs = kzalloc(sizeof(*sdma->script_addrs), GFP_KERNEL); if (!sdma->script_addrs) { ret = -ENOMEM; - goto err_irq; + return ret; } /* initially no scripts available */ @@ -2407,10 +2399,6 @@ static int sdma_probe(struct platform_device *pdev) dma_async_device_unregister(&sdma->dma_device); err_init: kfree(sdma->script_addrs); -err_irq: - clk_unprepare(sdma->clk_ahb); -err_clk: - clk_unprepare(sdma->clk_ipg); return ret; } @@ -2422,8 +2410,6 @@ static void sdma_remove(struct platform_device *pdev) devm_free_irq(&pdev->dev, sdma->irq, sdma); dma_async_device_unregister(&sdma->dma_device); kfree(sdma->script_addrs); - clk_unprepare(sdma->clk_ahb); - clk_unprepare(sdma->clk_ipg); /* Kill the tasklet */ for (i = 0; i < MAX_DMA_CHANNELS; i++) { struct sdma_channel *sdmac = &sdma->channel[i];
Use devm_clk_get_prepared() instead of clk functions in imx-sdma. Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com> --- v2:remove all enable related modifications, replace clk_prepare() with devm_clk_get_prepared() --- drivers/dma/imx-sdma.c | 22 ++++------------------ 1 file changed, 4 insertions(+), 18 deletions(-)