On Thu, Jun 8, 2023 at 5:58 PM Hawkins, Nick <nick.hawkins@xxxxxxx> wrote: > > > Is there any documents available describing how regmap_gpio > > > populates the GPIO lines? Does it automatically go through and add lines > > > for each successful regmap_read and bits per byte? > > > Nope, it assumes one bit per register or something different if xlate > > callback is defined. This is my understanding. That said, it might be > > that this is a limitation which does not allow you to switch to that > > library. > > Thank you for this feedback. After exploring the gpio_regmap it seems > it does not fit my needs. Some of the GPIOs are a combination of > several bits in a byte. For instance the Health LED or Identify LED have > more than 2 states. If acceptable I believe the gxp-gpio-pl.c file should > not use the gpio_regmap. Yes, just mention this reasoning in the cover letter. -- With Best Regards, Andy Shevchenko