Merge tag 'scmi-updates-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep...

Arm SCMI updates for v6.6

The main addition this time is the support for SCMI v3.2 perf level
indexing mode. SCMI v3.2 adds support for hardware which works on
performance indices, instead of levels. Certain platforms use indices
to identify performance levels. Level Indexing Mode is used to describe
such platform behavior. All commands which utilize performance level
as a parameter need to specify the corresponding level index instead of
the performance level when Level Indexing Mode is used.

While at it, these changes also include hardening of all the internal
accesses to the performance domain information.

* tag 'scmi-updates-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_scmi: Add v3.2 perf level indexing mode support
  firmware: arm_scmi: Harden perf domain info access

Link: https://lore.kernel.org/r/20230804123231.3258141-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>