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SubjectRe: [PATCH 1/3] misc: Add crossbar driver
On Friday 23 August 2013 11:41 AM, Sricharan R wrote:
> Hi,
> On Friday 23 August 2013 10:17 AM, Rajendra Nayak wrote:
>> On Thursday 22 August 2013 05:03 PM, Sricharan R wrote:
>>> maps crossbar number<-> to interrupt number and
>>> calls request_irq(int_no, crossbar_handler,..)
>> So will this mapping happen based on some data passed from DT or
>> just based on whats available when the device does a request_irq()?
>>
>> If its based on whats available then I see an issue when you need
>> to remap something thats already mapped by default (and not used)
>> since you run out of all free ones.
> Yes, when done based on what is available then there is a
> problem when we run out of free ones because we do not
> know which one to replace. I was thinking of something like
> this,
> 1) DT would give a list of all free ones, and also if some are
> mapped as default and not used, mark those also as free.
>
> 2) While mapping see if it has a default mapping and use it.
> otherwise, pick from free list.
>
> This should be ok right ?

yeah, sounds ok.

>
> Regards,
> Sricharan
>



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