On Tue, May 23, 2023 at 12:57 PM Jiawen Wu <jiawenwu@xxxxxxxxxxxxxx> wrote: > > > 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. And thank you for all this! Now you may suggest the fixes to the GPIO regmap with all your knowledge of the area. > 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. -- With Best Regards, Andy Shevchenko