Quoting kostap@marvell.com (2021-01-14 02:26:41)

From: Konstantin Porotchkin <redacted>

These patches enable usage of Arm Trusted Firmware SIP services on
Marvell Armada plaforms for accessing system registers that are not
normally accessible from kernel or user space (EL1/EL0), like DFX
registers group.

v2:
* use separate legacy/smc regmap functions registered at ap-cpu
  clock driver probe according to FW response

Please fix kbuild robot errors. Probably some Kconfig dependency is
needed?