RE: Question: GPIO driver how to get irq_base

[Tomoya MORINAGA]

 Hi Lars, Grant

According to "/proc/interrupts", IRQ18 is not empty.
However, irq_alloc_descs returns "18".
I suspect irq_alloc_descs returns should not return "18".

> Grant,
Let me know your opinion.

With Best Regards,
-----------------------------------------
Tomoya MORINAGA
OKI SEMICONDUCTOR CO., LTD.

> -----Original Message-----
> From: Lars-Peter Clausen [mailto:lars@xxxxxxxxxx] 
> Sent: Thursday, May 12, 2011 4:20 AM
> To: Tomoya MORINAGA
> Cc: 'Grant Likely'; linux-kernel@xxxxxxxxxxxxxxx; 
> toshiharu-linux@xxxxxxxxxxxxxxx
> Subject: Re: Question: GPIO driver how to get irq_base
> 
> On 05/09/2011 10:54 PM, Tomoya MORINAGA wrote:
> > Hi Lars,
> > 
> > Did you see this email ?
> > I'm waiting for your response.
> > 
> 
> Hi
> 
> Well, it looks as if io-apic assumes that IRQ18 is reserved 
> for itself, while it actually is requested by your driver. 
> But that's all I can say. I'm not familiar with the x86 irq 
> code, so I've no idea what the proper fix would be.
> 
> - Lars
> 

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