RE: [PATCH net-next v8 6/9] net: txgbe: Support GPIO to SFP socket

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> > Anyway it is a bit complicated, could I use this version of GPIO implementation if
> > it's really tough?
> 
> It's possible but from GPIO subsystem point of view it's discouraged
> as long as there is no technical impediment to go the regmap way.

After these days of trying, I guess there are still some bugs on gpio - regmap - irq.
It looks like an compatibility issue with gpio_irq_chip and regmap_irq_chip (My rough
fixes seems to work).

Other than that, it seems to be no way to add interrupt trigger in regmap_irq_thread(),
to solve the both-edge problem for my hardware.

I'd be willing to use gpio-regmap if above issues worked out, I learned IRQ controller,
IRQ domain, etc. , after all. But if not, I'd like to implement GPIO in the original way,
it was tested to work. May I? Thanks for all your suggestions.




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