Merge tag 'scmi-updates-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers

Arm SCMI updates for v6.8

Few minor updates:

1. Addition of protocol versioning checks to warn if the firmware version
   is newer or greater than the version supported by the kernel driver

2. Increment of the maximum OPP count in the perf protocol from 16 to 32
   as needed by a few recent/future qualcomm platforms

3. Optimisation of set performance operations by returning error
   immediately and avoiding to send the command to the platform(which
   would return error eventually) if the domain doesn't support perf
   operations. Similarly, the fastchannel handling is also optimised by
   avoiding to initialise the corresponding set operations fastchannels.

4. Extension of extended names helper to accomodate recently added new
   flags parameter to be able to properly configure the command used to
   query the extended name of a resource.

* tag 'scmi-updates-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_scmi: Add protocol versioning checks
  firmware: arm_scmi: Increase the maximum opp count in the perf protocol
  firmware: arm_scmi: Fix NULL pointer dereference during fastchannel init
  firmware: arm_scmi: Add optional flags to extended names helper
  firmware: arm_scmi: Populate fastchannel info only if set operations are allowed
  firmware: arm_scmi: Check beforehand if the perf domain set operations are allowed

Link: https://lore.kernel.org/r/20231213115953.3578115-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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