On Sun, Jul 24, 2022 at 7:21 PM Marek Vasut <marex@xxxxxxx> wrote: > > Always configure GPIO pins which are used as interrupt source as INPUTs. > In case the default pin configuration is OUTPUT, or the prior stage does > configure the pins as OUTPUT, then Linux will not reconfigure the pin as > INPUT and no interrupts are received. > > Always configure interrupt source GPIO pin as input to fix the above case. the interrupt ... I'm wondering if it's configured as output (by who?) shouldn't you issue a warning? -- With Best Regards, Andy Shevchenko