linux-kernel - Re: [PATCH v2] uio/pdrv

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Date:	Thu, 14 Apr 2011 18:59:31 +0200
From:	Wolfram Sang <w.sang@...gutronix.de>
To:	Michal Simek <monstr@...str.eu>
Cc:	devicetree-discuss@...ts.ozlabs.org, grant.likely@...retlab.ca,
	john.williams@...alogix.com, linux-kernel@...r.kernel.org,
	hjk@...sjkoch.de, arnd@...db.de
Subject: Re: [PATCH v2] uio/pdrv_genirq: Add OF support

Hi Michal,

On Thu, Apr 14, 2011 at 11:41:46AM +0200, Michal Simek wrote:
> Support OF support. "generic-uio" compatible property is used.

This description is not true anymore. Please also add a short paragrpah how it
is intended to be used now.

> Signed-off-by: Michal Simek <monstr@...str.eu>

> +		uioinfo->version = "dt";

Minor nit: "devicetree" is probably more descriptive.

> +
> +		/* Multiple IRQs are not supported */
> +		if (pdev->num_resources > 1) {
> +			struct resource *r = &pdev->resource[1];

Are you sure the irq-ressource is always [1]? (Similar question for the
if()-block above). Try platform_get_irq().

> +#ifdef CONFIG_OF
> +/*
> + * Empty match table for of_platform binding

While it probably doesn't make change to put every supported device in
upstream, it still deosn't technically have to be empty. So, mabye drop this
comment and add something like "/* empty for now */" to the table?

Thanks,

   Wolfram

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

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