[PATCH 1/3] misc: Add crossbar driver

Nishanth Menon nm at ti.com
Wed Jul 24 12:47:44 EDT 2013

On 07/24/2013 11:38 AM, Santosh Shilimkar wrote:
> On Wednesday 24 July 2013 12:08 PM, Nishanth Menon wrote:
>> That said, maybe a intermediate pinctrl approach might be more pragmatic and less theoretically flexible.
>> an option might be to "statically allocate" default number of interrupts to a domain - example:
>> * GIC IRQ 72->78 allotted to UARTs
>> * pinctrl mapping provided for those but only 6 can be used (rest are marked status="disabled" as default) at any given time (choice of pinctrl option determines GIC interrupt line to use)
>> * All modules will have a pinctrl definition to have a mapping - to avoid bootloader overriding default cross bar setting in ways un-expected by kernel.
>> Does that sound fair trade off?
> This sounds better. That way we can get all the devices in the DT at least.

Fair enough - if Linus and Tony are still ok with this approach to the 
problem, seeing a patch series with the effect would be beneficial.

Nishanth Menon

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