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dmaengine: tegra: Use managed DMA controller registration

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Switch to managed registration in probe. This simplifies the error
paths in the probe and also removes the requirement of the driver
remove function.

Signed-off-by: Akhil R <akhilrajeev@nvidia.com>
Suggested-by: Frank Li <frank.li@nxp.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://patch.msgid.link/20260331102303.33181-8-akhilrajeev@nvidia.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Akhil R 2026-03-31 15:53:00 +05:30 committed by Vinod Koul
parent 286632b9bf
commit 45921a3282
1 changed files with 4 additions and 15 deletions
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19
drivers/dma/tegra186-gpc-dma.c
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@ -1483,37 +1483,27 @@ 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");
return ret;
}
ret = of_dma_controller_register(pdev->dev.of_node,
tegra_dma_of_xlate, tdma);
ret = devm_of_dma_controller_register(&pdev->dev, pdev->dev.of_node,
tegra_dma_of_xlate, tdma);
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;
}
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)
{
struct tegra_dma *tdma = dev_get_drvdata(dev);
@ -1564,7 +1554,6 @@ static struct platform_driver tegra_dma_driver = {
.of_match_table = tegra_dma_of_match,
},
.probe = tegra_dma_probe,
.remove = tegra_dma_remove,
};
module_platform_driver(tegra_dma_driver);