linux-kernel - RE: Question: GPIO driver how to get irq

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Message-ID: <A9DC7D6B9E604C0BB5B3B2E271273043@hacdom.okisemi.com>
Date:	Fri, 13 May 2011 14:42:42 +0900
From:	"Tomoya MORINAGA" <tomoya-linux@....okisemi.com>
To:	"'Lars-Peter Clausen'" <lars@...afoo.de>
Cc:	"'Grant Likely'" <grant.likely@...retlab.ca>,
	<linux-kernel@...r.kernel.org>, <toshiharu-linux@....okisemi.com>
Subject: RE: Question: GPIO driver how to get irq_base

Friday, May 13, 2011 12:19 PM,  Lars-Peter Clausen wrote:
> Well, you should be able to figure that out with some debug 
> printks, shouldn't you?
I can confirm "18" is not assigned at that time.
After loading gpio driver, other modules are assigned to "IRQ18".
(IRQ numbers shared system)

Thanks,
-----------------------------------------
Tomoya MORINAGA
OKI SEMICONDUCTOR CO., LTD.


> -----Original Message-----
> From: Lars-Peter Clausen [mailto:lars@...afoo.de] 
> Sent: Friday, May 13, 2011 12:19 PM
> To: Tomoya MORINAGA
> Cc: 'Grant Likely'; linux-kernel@...r.kernel.org; 
> toshiharu-linux@....okisemi.com
> Subject: Re: Question: GPIO driver how to get irq_base
> 
> On 05/12/2011 07:40 PM, Tomoya MORINAGA wrote:
> > Hi  Lars,
> > 
> > On Friday, May 13, 2011 4:43 AM, Lars-Peter Clausen wrote:
> >> Is it already used at the time when you call irq_alloc_descs?
> > 
> > Since gpio driver with interrupt function must be integrated as 
> > built-in, I don't know whether "18" is already used or NOT 
> at that time.
> > If you have any information, let me know.
> > 
> 
> Well, you should be able to figure that out with some debug 
> printks, shouldn't you?
> 
> - Lars
> 

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