Merge tag 'gpio-v4.15-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio

Pull GPIO fix from Linus Walleij:
 "This is the (hopefully) last GPIO fix for v4.15, fixing the bit
  fiddling in the MMIO GPIO driver.

  Again the especially endowed screwer-upper who has been open coding
  bit fiddling is yours truly"

* tag 'gpio-v4.15-5' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: mmio: Also read bits that are zero