add dts config

hc

2023-12-06 08f87f769b595151be1afeff53e144f543faa614

 kernel/drivers/usb/host/r8a66597-hcd.c
..
..
@@ -475,16 +475,14 @@
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 static void clear_all_buffer(struct r8a66597 *r8a66597,
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 			     struct r8a66597_pipe *pipe)
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 {
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-	u16 tmp;
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-
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 	if (!pipe || pipe->info.pipenum == 0)
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 		return;
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 	pipe_stop(r8a66597, pipe);
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 	r8a66597_bset(r8a66597, ACLRM, pipe->pipectr);
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-	tmp = r8a66597_read(r8a66597, pipe->pipectr);
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-	tmp = r8a66597_read(r8a66597, pipe->pipectr);
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-	tmp = r8a66597_read(r8a66597, pipe->pipectr);
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+	r8a66597_read(r8a66597, pipe->pipectr);
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+	r8a66597_read(r8a66597, pipe->pipectr);
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+	r8a66597_read(r8a66597, pipe->pipectr);
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 	r8a66597_bclr(r8a66597, ACLRM, pipe->pipectr);
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 }
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..
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@@ -2410,12 +2408,6 @@
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 	if (usb_disabled())
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 		return -ENODEV;
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-
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-	if (pdev->dev.dma_mask) {
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-		ret = -EINVAL;
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-		dev_err(&pdev->dev, "dma not supported\n");
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-		goto clean_up;
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-	}
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 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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 	if (!res) {