add gpio led uart

hc

2024-05-10 748e4f3d702def1a4bff191e0cf93b6a05340f01

 kernel/drivers/ata/pata_arasan_cf.c
..
..
@@ -528,7 +528,8 @@
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 	/* dma_request_channel may sleep, so calling from process context */
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 	acdev->dma_chan = dma_request_chan(acdev->host->dev, "data");
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 	if (IS_ERR(acdev->dma_chan)) {
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-		dev_err(acdev->host->dev, "Unable to get dma_chan\n");
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+		dev_err_probe(acdev->host->dev, PTR_ERR(acdev->dma_chan),
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+			      "Unable to get dma_chan\n");
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 		acdev->dma_chan = NULL;
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 		goto chan_request_fail;
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 	}