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

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Message-ID: <4DABF744.4010209@monstr.eu>
Date:	Mon, 18 Apr 2011 10:33:08 +0200
From:	Michal Simek <monstr@...str.eu>
To:	Wolfram Sang <w.sang@...gutronix.de>
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 Wolfram,

Wolfram Sang wrote:
> 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.

ok.

> 
>> Signed-off-by: Michal Simek <monstr@...str.eu>
> 
>> +		uioinfo->version = "dt";
> 
> Minor nit: "devicetree" is probably more descriptive.

no problem to change it

> 
>> +
>> +		/* 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().

I wasn't aware about platform_get_irq. You are right.

What "if()-block above" are you talking about?
Above is kzalloc uioinfo allocation.
I am going to send v3 that's why please comment this there.

> 
>> +#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?

ok, done.

Thanks,
Michal

-- 
Michal Simek, Ing. (M.Eng)
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/
Microblaze U-BOOT custodian
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