Merge tag 'regmap-v3.19' of git://

Pull regmap updates from Mark Brown:
 "A couple of new features this time around, nothing that should have
  any impact on most users:

   - Cleanups and optimization of the path for reading back the register
     defaults from the hardware at startup, reducing boot times for
     devices that use this (most don't, either populating on demand or
     providing defaults).
   - A bus implementation for AC'97 devices"

* tag 'regmap-v3.19' of git://
  regmap: ac97: Add generic AC'97 callbacks
  regmap: cache: Sort include headers alphabetically
  regmap: cache: Fix possible ZERO_SIZE_PTR pointer dereferencing error.
  regmap: cache: use kmalloc_array instead of kmalloc
  regmap: cache: speed regcache_hw_init() up.
  regmap: cache: fix errno in regcache_hw_init()
  regmap: cache: cleanup regcache_hw_init()
  regmap: cache: fix errno in regcache_hw_init()