Porting MIPS IRQ handler to ARM

[Måns Rullgård]

Mason <slash.tmp at free.fr> writes:

> On 01/09/2015 18:58, Florian Fainelli wrote:
>
>> On 01/09/15 09:14, Mason wrote:
>>
>>> I'm trying to port to my ARM platform: IRQ handling code written for MIPS.
>>> https://github.com/mansr/linux-tangox/blob/master/drivers/irqchip/irq-tangox.c
>> 
>> Calling clear_c0_status() and write_c0_status() in tangox_irq_handler()
>> sounds like a layering violation here, this should be taken care of by
>> the interrupt code once proper parenting between the MIPS IRQ controller
>> and your tangox controller is established.
>
> Following Mans' suggestion, I deleted the arch-specific code, and
> the driver now compiles and links.
>
> Unfortunately, I still can't get it to work, and I've been banging
> my head against the wall over this device tree monstrosity.
>
> tangox_irq_init() fails in irq_of_parse_and_map()
>
> I see that
> irqchip_init is called
> gic_of_init is called
> but of_irq_parse_one(dev, index, &oirq) fails... :-(

Use the latest DT from my tree.  It looks like you're missing some
changes.

-- 
Måns Rullgård
mans at mansr.com