write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/drivers/usb/host/imx21-hcd.c
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@@ -224,7 +224,7 @@
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 		((u32) maxpacket << DW0_MAXPKTSIZ));
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 }
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-/**
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+/*
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  * Copy buffer to data controller data memory.
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  * We cannot use memcpy_toio() because the hardware requires 32bit writes
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  */
..
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@@ -1771,7 +1771,7 @@
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 	.product_desc = "IMX21 USB Host Controller",
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 	.hcd_priv_size = sizeof(struct imx21),
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-	.flags = HCD_USB11,
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+	.flags = HCD_DMA | HCD_USB11,
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 	.irq = imx21_irq,
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 	.reset = imx21_hc_reset,
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@@ -1836,10 +1836,8 @@
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 	if (!res)
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 		return -ENODEV;
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 	irq = platform_get_irq(pdev, 0);
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-	if (irq < 0) {
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-		dev_err(&pdev->dev, "Failed to get IRQ: %d\n", irq);
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+	if (irq < 0)
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 		return irq;
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-	}
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 	hcd = usb_create_hcd(&imx21_hc_driver,
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 		&pdev->dev, dev_name(&pdev->dev));