Merge tag 'regmap-fix-v7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...

Merge tag 'regmap-fix-v7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap

Pull regmap fix from Mark Brown:
 "Some other fixing in an API user turned up the fact that we weren't
  correctly applying cache only mode to volatile registers in
  regmap_update_bits(), causing us to try to access hardware that was
  powered off or otherwise not in a state to accept I/O. This fix
  returns an error instead, avoiding more serious consequences"

* tag 'regmap-fix-v7.1-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regmap: reject volatile update_bits() in cache-only mode