Merge tag 'gpio-updates-for-v5.7-part1' of git://git.kernel.org/pub/scm/linux/kernel...

gpio updates for v5.7 part 1

- make irqs optional in gpio-pxa
- improve the logic behind the get() and set() callbacks in gpio-wcd934x
- add new kfifo helpers (acked by kfifo maintainer)
- rework the locking mechanism for lineevent kfifo
- implement a new ioctl() for watching changes on GPIO lines