netdev - Re: [PATCH 2/3] net: irda: pxaficp_ir: convert to readl and writel

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Date:	Tue, 8 Sep 2015 22:24:09 +0200
From:	Petr Cvek <petr.cvek@....cz>
To:	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Samuel Ortiz <samuel@...tiz.org>,
	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH 2/3] net: irda: pxaficp_ir: convert to readl and writel

Dne 3.9.2015 v 08:20 Robert Jarzmik napsal(a):
> Convert the pxa IRDA driver to readl and writel primitives, and remove
> another set of direct registers access. This leaves only the DMA
> registers access, which will be dealt with dmaengine conversion.

Test on magician (nonvanilla, but there should not be any collision).

>  
> -	err = request_mem_region(__PREG(STUART), 0x24, "IrDA") ? 0 : -EBUSY;
> -	if (err)
> -		goto err_mem_1;
> +	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> +	ficp = devm_ioremap_resource(&pdev->dev, res);
> +	if (IS_ERR(ficp)) {
> +		dev_err(&pdev->dev, "resource ficp not defined\n");

Fails around here with:

[ 4245.368764] pxa2xx-ir pxa2xx-ir: invalid resource
[ 4245.369191] pxa2xx-ir pxa2xx-ir: resource ficp not defined
[ 4245.369364] pxa2xx-ir: probe of pxa2xx-ir failed with error -22

Did you defined resources somewhere? Actual resources are in "pxa_ir_resources" variable at:

	http://lxr.free-electrons.com/source/arch/arm/mach-pxa/devices.c#L386

or this pdata should be moved into specific machine files?

Cheers,
Petr
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