From: Michael Tretter <m.tretter@pengutronix.de> Date: Thu, 26 Aug 2021 09:47:36 +0000 (+0200) Subject: dmaengine: zynqmp_dma: simplify with dev_err_probe X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=5637abaab994a933d7f00c95bc1456c7a58c83f4;p=linux.git dmaengine: zynqmp_dma: simplify with dev_err_probe The clocks are provided by the ZynqMP firmware driver and are deferred until the firmware driver has probed. This leads to misleading error messages during probe of the zynqmp_dma driver. Use dev_err_probe for printing errors during probe to avoid error messages for -EPROBE_DEFER. Signed-off-by: Michael Tretter <m.tretter@pengutronix.de> Link: https://lore.kernel.org/r/20210826094742.1302009-2-m.tretter@pengutronix.de Signed-off-by: Vinod Koul <vkoul@kernel.org> --- diff --git a/drivers/dma/xilinx/zynqmp_dma.c b/drivers/dma/xilinx/zynqmp_dma.c index 97f02f8eb03a8..1d077a85f32b0 100644 --- a/drivers/dma/xilinx/zynqmp_dma.c +++ b/drivers/dma/xilinx/zynqmp_dma.c @@ -1061,16 +1061,14 @@ static int zynqmp_dma_probe(struct platform_device *pdev) p->dev = &pdev->dev; zdev->clk_main = devm_clk_get(&pdev->dev, "clk_main"); - if (IS_ERR(zdev->clk_main)) { - dev_err(&pdev->dev, "main clock not found.\n"); - return PTR_ERR(zdev->clk_main); - } + if (IS_ERR(zdev->clk_main)) + return dev_err_probe(&pdev->dev, PTR_ERR(zdev->clk_main), + "main clock not found.\n"); zdev->clk_apb = devm_clk_get(&pdev->dev, "clk_apb"); - if (IS_ERR(zdev->clk_apb)) { - dev_err(&pdev->dev, "apb clock not found.\n"); - return PTR_ERR(zdev->clk_apb); - } + if (IS_ERR(zdev->clk_apb)) + return dev_err_probe(&pdev->dev, PTR_ERR(zdev->clk_apb), + "apb clock not found.\n"); platform_set_drvdata(pdev, zdev); pm_runtime_set_autosuspend_delay(zdev->dev, ZDMA_PM_TIMEOUT); @@ -1085,7 +1083,7 @@ static int zynqmp_dma_probe(struct platform_device *pdev) ret = zynqmp_dma_chan_probe(zdev, pdev); if (ret) { - dev_err(&pdev->dev, "Probing channel failed\n"); + dev_err_probe(&pdev->dev, ret, "Probing channel failed\n"); goto err_disable_pm; } @@ -1097,7 +1095,7 @@ static int zynqmp_dma_probe(struct platform_device *pdev) ret = of_dma_controller_register(pdev->dev.of_node, of_zynqmp_dma_xlate, zdev); if (ret) { - dev_err(&pdev->dev, "Unable to register DMA to DT\n"); + dev_err_probe(&pdev->dev, ret, "Unable to register DMA to DT\n"); dma_async_device_unregister(&zdev->common); goto free_chan_resources; }