linux-kernel - [PATCH v2 11/13] dmaengine: fsl-edma: Use managed API dmaenginem_async_device

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Message-Id: <20260115-mxsdma-module-v2-11-0e1638939d03@nxp.com>
Date: Thu, 15 Jan 2026 11:06:50 -0500
From: Frank Li <Frank.Li@....com>
To: Rob Herring <robh@...nel.org>, Saravana Kannan <saravanak@...gle.com>, 
 Vinod Koul <vkoul@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>
Cc: dmaengine@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, Shawn Guo <shawn.guo@...escale.com>, 
 Frank Li <Frank.Li@....com>
Subject: [PATCH v2 11/13] dmaengine: fsl-edma: Use managed API
 dmaenginem_async_device_register()

Use managed API dmaenginem_async_device_register() and
devm_of_dma_controller_register() to simple code.

Signed-off-by: Frank Li <Frank.Li@....com>
---
 drivers/dma/fsl-edma-main.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/dma/fsl-edma-main.c b/drivers/dma/fsl-edma-main.c
index a753b7cbfa7a3369d17314bc5bc9139c9f8e5c27..c0305fd2ec06c41dfa8396bad6bfc225fd3861f0 100644
--- a/drivers/dma/fsl-edma-main.c
+++ b/drivers/dma/fsl-edma-main.c
@@ -882,20 +882,19 @@ static int fsl_edma_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, fsl_edma);
 
-	ret = dma_async_device_register(&fsl_edma->dma_dev);
+	ret = dmaenginem_async_device_register(&fsl_edma->dma_dev);
 	if (ret) {
 		dev_err(&pdev->dev,
 			"Can't register Freescale eDMA engine. (%d)\n", ret);
 		return ret;
 	}
 
-	ret = of_dma_controller_register(np,
+	ret = devm_of_dma_controller_register(&pdev->dev, np,
 			drvdata->dmamuxs ? fsl_edma_xlate : fsl_edma3_xlate,
 			fsl_edma);
 	if (ret) {
 		dev_err(&pdev->dev,
 			"Can't register Freescale eDMA of_dma. (%d)\n", ret);
-		dma_async_device_unregister(&fsl_edma->dma_dev);
 		return ret;
 	}
 
@@ -908,12 +907,9 @@ static int fsl_edma_probe(struct platform_device *pdev)
 
 static void fsl_edma_remove(struct platform_device *pdev)
 {
-	struct device_node *np = pdev->dev.of_node;
 	struct fsl_edma_engine *fsl_edma = platform_get_drvdata(pdev);
 
 	fsl_edma_irq_exit(pdev, fsl_edma);
-	of_dma_controller_free(np);
-	dma_async_device_unregister(&fsl_edma->dma_dev);
 	fsl_edma_cleanup_vchan(&fsl_edma->dma_dev);
 	fsl_disable_clocks(fsl_edma, fsl_edma->drvdata->dmamuxs);
 }

-- 
2.34.1