Failure of request_irq() for MPC8313 using arch=powerpc

[Liu Dave]

Hi Nguyen,
 
If current PowerPC linux is using the virq to request_irq,
you need do the irq_of_parse_and_map(np, 0) to get the virq.
 
like.
virq = irq_of_parse_and_map(np, 0)
request_irq(virq,...);
 
Hope it can help you.
Thanks,
Dave

________________________________

	From: linuxppc-embedded-bounces+daveliu=freescale.com at ozlabs.org [mailto:linuxppc-embedded-bounces+daveliu=freescale.com at ozlabs.org] On Behalf Of Duy-Ky Nguyen
	Sent: 2008?7?16? 8:59 AM
	To: linuxppc-embedded at ozlabs.org
	Subject: Failure of request_irq() for MPC8313 using arch=powerpc
	
	
	Hello,
	 
	I had no problem in using request_irq() for MPC8272 with arch=ppc from Montavista Linux
	 
	But I have failure for MPC8313 with arch=powerpc from FreeScale LTIB Linux with error code -38
	 
	I found its header file mpc83xx.h under include/asm-ppc, while it's supposed to be under include/asm-powerpc.
	 
	I did try to copy the header file to directory asm-powerpc
	 
	From MPC8313 datasheet, I have 
	 
	GPIO_IRQ = 74
	 
	and I use
	 
	DEVICE_NAME = "ppc"
	IRQ_FLAG = IRQF_SHARED    // use new flag
	here my function call
	 
	request_irq (GPIO_IRQ,
	      ppc_ISR,  
	      IRQ_FLAG,
	      DEVICE_NAME,   
	      NULL);   
	
	I'd appreciate any help on this problem.
	 
	Best Regards,
	 
	Duy-Kyng
	 
	 

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