Julia,

>  	iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> @@ -663,18 +663,11 @@ static int mxs_saif_probe(struct platform_device *pdev)
>  		goto failed_get_resource;
>  	}
> 
> -	if (!request_mem_region(iores->start, resource_size(iores),
> -				"mxs-saif")) {
> -		dev_err(&pdev->dev, "request_mem_region failed\n");
> -		ret = -EBUSY;
> -		goto failed_get_resource;
> -	}
> -
> -	saif->base = ioremap(iores->start, resource_size(iores));
> +	saif->base = devm_request_and_ioremap(&pdev->dev, iores);

You can skip checking 'iores', too. I also did that in the example, but
a lot of people seem to miss it. Where did you get the information how
to use devm_request_and_ioremap? I probably need to spread the word even
more...

Thanks,

   Wolfram

-- 
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |