diff options
| author | Frank Li <Frank.Li@nxp.com> | 2023-08-21 18:16:12 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-08-22 16:41:03 +0200 |
| commit | a9903de3aa16731846bf924342eca44bdabe9be6 (patch) | |
| tree | cf137d1043f32b3324d1bd36d0f76045500197d3 /drivers/dma | |
| parent | dmaengine: fsl-edma: simply ATTR_DSIZE and ATTR_SSIZE by using ffs() (diff) | |
| download | linux-a9903de3aa16731846bf924342eca44bdabe9be6.tar.xz linux-a9903de3aa16731846bf924342eca44bdabe9be6.zip | |
dmaengine: fsl-edma: refactor using devm_clk_get_enabled
Use devm_clk_get_enabled in probe code to reduce error checks,
thereby enhancing readability
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20230821161617.2142561-8-Frank.Li@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/fsl-edma-main.c | 19 |
1 files changed, 2 insertions, 17 deletions
diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c index c8b9f2eff111..7dfbdc89051a 100644 --- a/drivers/dma/fsl-edma-main.c +++ b/drivers/dma/fsl-edma-main.c @@ -276,17 +276,11 @@ static int fsl_edma_probe(struct platform_device *pdev) regs = &fsl_edma->regs; if (drvdata->flags & FSL_EDMA_DRV_HAS_DMACLK) { - fsl_edma->dmaclk = devm_clk_get(&pdev->dev, "dma"); + fsl_edma->dmaclk = devm_clk_get_enabled(&pdev->dev, "dma"); if (IS_ERR(fsl_edma->dmaclk)) { dev_err(&pdev->dev, "Missing DMA block clock.\n"); return PTR_ERR(fsl_edma->dmaclk); } - - ret = clk_prepare_enable(fsl_edma->dmaclk); - if (ret) { - dev_err(&pdev->dev, "DMA clk block failed.\n"); - return ret; - } } for (i = 0; i < fsl_edma->drvdata->dmamuxs; i++) { @@ -301,19 +295,12 @@ static int fsl_edma_probe(struct platform_device *pdev) } sprintf(clkname, "dmamux%d", i); - fsl_edma->muxclk[i] = devm_clk_get(&pdev->dev, clkname); + fsl_edma->muxclk[i] = devm_clk_get_enabled(&pdev->dev, clkname); if (IS_ERR(fsl_edma->muxclk[i])) { dev_err(&pdev->dev, "Missing DMAMUX block clock.\n"); /* on error: disable all previously enabled clks */ - fsl_disable_clocks(fsl_edma, i); return PTR_ERR(fsl_edma->muxclk[i]); } - - ret = clk_prepare_enable(fsl_edma->muxclk[i]); - if (ret) - /* on error: disable all previously enabled clks */ - fsl_disable_clocks(fsl_edma, i); - } fsl_edma->big_endian = of_property_read_bool(np, "big-endian"); @@ -374,7 +361,6 @@ static int fsl_edma_probe(struct platform_device *pdev) if (ret) { dev_err(&pdev->dev, "Can't register Freescale eDMA engine. (%d)\n", ret); - fsl_disable_clocks(fsl_edma, fsl_edma->drvdata->dmamuxs); return ret; } @@ -383,7 +369,6 @@ static int fsl_edma_probe(struct platform_device *pdev) dev_err(&pdev->dev, "Can't register Freescale eDMA of_dma. (%d)\n", ret); dma_async_device_unregister(&fsl_edma->dma_dev); - fsl_disable_clocks(fsl_edma, fsl_edma->drvdata->dmamuxs); return ret; } |