[PATCH v2 6/9] dmaengine: tegra: Use managed DMA controller registration

[Akhil R <akhilrajeev@nvidia.com>]

Switch to dmaenginem_async_device_register() for managed
registration and to simplify the error path in the probe.

Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Suggested-by: Frank Li <frank.li@nxp.com>
---
 drivers/dma/tegra186-gpc-dma.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/dma/tegra186-gpc-dma.c b/drivers/dma/tegra186-gpc-dma.c
index 753e86d05a02..5997edaba28e 100644
--- a/drivers/dma/tegra186-gpc-dma.c
+++ b/drivers/dma/tegra186-gpc-dma.c
@@ -1497,7 +1497,7 @@ static int tegra_dma_probe(struct platform_device *pdev)
 	tdma->dma_dev.device_synchronize = tegra_dma_chan_synchronize;
 	tdma->dma_dev.residue_granularity = DMA_RESIDUE_GRANULARITY_BURST;
 
-	ret = dma_async_device_register(&tdma->dma_dev);
+	ret = dmaenginem_async_device_register(&tdma->dma_dev);
 	if (ret < 0) {
 		dev_err_probe(&pdev->dev, ret,
 			      "GPC DMA driver registration failed\n");
@@ -1509,12 +1509,10 @@ static int tegra_dma_probe(struct platform_device *pdev)
 	if (ret < 0) {
 		dev_err_probe(&pdev->dev, ret,
 			      "GPC DMA OF registration failed\n");
-
-		dma_async_device_unregister(&tdma->dma_dev);
 		return ret;
 	}
 
-	dev_info(&pdev->dev, "GPC DMA driver register %lu channels\n",
+	dev_info(&pdev->dev, "GPC DMA driver registered %lu channels\n",
 		 hweight_long(tdma->chan_mask));
 
 	return 0;
@@ -1522,10 +1520,7 @@ static int tegra_dma_probe(struct platform_device *pdev)
 
 static void tegra_dma_remove(struct platform_device *pdev)
 {
-	struct tegra_dma *tdma = platform_get_drvdata(pdev);
-
 	of_dma_controller_free(pdev->dev.of_node);
-	dma_async_device_unregister(&tdma->dma_dev);
 }
 
 static int __maybe_unused tegra_dma_pm_suspend(struct device *dev)
-- 
2.50.1