Merge tag 'regmap-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie...

Pull regmap updates from Mark Brown:
 "The main change here is the implementation of a mechanism for
  generating register defaults via a callback rather than with a table
  in the driver.

  This is useful for devices where there are large ranges of registers
  with the same or generated values, it allows us to have a small amount
  of code instead of a larger amount of default data"

* tag 'regmap-v6.20' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
  regcache: Demote defaults readback from HW to debug print
  regmap: add KUnit coverage for reg_default_cb callback
  regmap: Add reg_default_cb callback for flat cache defaults
  regmap: Enable REGMAP when REGMAP_SLIMBUS is enabled