Merge tag 'reset-for-4.6' of git://git.pengutronix.de/git/pza/linux into next/drivers

Reset controller changes for v4.6

- add support for the imgtec Pistachio SoC reset controller
- make struct reset_control_ops const
- move DT cell size check into the core to avoid code duplication
  in the drivers

* tag 'reset-for-4.6' of git://git.pengutronix.de/git/pza/linux

:
  reset: sti: Make reset_control_ops const
  reset: zynq: Make reset_control_ops const
  reset: socfpga: Make reset_control_ops const
  reset: hi6220: Make reset_control_ops const
  reset: ath79: Make reset_control_ops const
  reset: lpc18xx: Make reset_control_ops const
  reset: sunxi: Make reset_control_ops const
  reset: img: Make reset_control_ops const
  reset: berlin: Make reset_control_ops const
  reset: berlin: drop DT cell size check
  reset: img: Add Pistachio reset controller driver
  reset: img: Add pistachio reset controller binding document
  reset: hisilicon: check return value of reset_controller_register()
  reset: Move DT cell size check to the core
  reset: Make reset_control_ops const
  reset: remove unnecessary local variable initialization from of_reset_control_get_by_index

Signed-off-by: Olof Johansson <olof@lixom.net>