linux-kernel - Re: [PATCH] of: Export of_irq

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Date:	Thu, 6 Jun 2013 15:26:31 +0200
From:	Michal Simek <michal.simek@...inx.com>
To:	Grant Likely <grant.likely@...aro.org>
CC:	Michal Simek <monstr@...str.eu>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
	Michal Simek <michal.simek@...inx.com>,
	devicetree-discuss <devicetree-discuss@...ts.ozlabs.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Rob Herring <rob.herring@...xeda.com>
Subject: Re: [PATCH] of: Export of_irq_count for using in modules

On 06/06/2013 01:55 PM, Grant Likely wrote:
> On Thu, Jun 6, 2013 at 9:39 AM, Michal Simek <monstr@...str.eu> wrote:
>> On 06/06/2013 10:29 AM, Jean-Christophe PLAGNIOL-VILLARD wrote:
>>> On 18:45 Fri 31 May     , Michal Simek wrote:
>>>> ok. good to know. Btw: Let's return to my origin point why not to
>>>> export of_irq_count for modules?
>>>> Or opposite question if platform_get_resource is correct way
>>>> why to export of_irq_to_resource for modules?
>>>
>>> for old ppc drivers that are not converted yet to pdev
>>>
>>> if you can do so just use pdev resource I should have fix the pb or irq_domain
>>> hopefully for 3.11
>>
>> ok. It means it is currently deprecated.
>> I just wanted to be sure that I understand it correctly.
> 
> It's deprecated for platform_devices, but should still be used for
> other bus types that don't provide the device driver with a list of
> irqs. For platform devices it is best to use the platform_bus irq
> table since that is portable regardless of how the device is
> instantiated.
> 
> As for not exporting of_irq_count(), I don't have a problem with it,
> but only if there is a user. It sounds like with the rework you
> discussed with Jean-Christophe that it is no longer the case.

We have talked about out of tree driver anyway
because it targets arm-arm remoteproc AMP which is not in mainline yet.
I have changed my drivers and using resource tables.
Interesting thing was that long interrupt list
is translated to resource table entry per cell and res->end is not
used to cover bigger ranges.

interrupts = < 0 29 0 0 30 0 0 31 0 0 32 0 0 33 0 0 34 0 0 35 0 0 36 0 0 52 0 0 53 0 0 54 0 0 55 0 0 56 0 0 57 0 0 58 0 0 59 0 0 37 0 0 38 0 0 39 0>;


BTW: can you please look at my microblaze email around interrupt
handlers?

Thanks,
Michal


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