Merge tag 'ffa-updates-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers

Arm FF-A + SMCCC updates for v7.2

1. The FF-A core is moved onto the driver model by reverting the earlier
   rootfs initcall change and registering the core as a platform driver with
   a synthetic arm-ffa platform device. Enumerated FF-A devices are now
   parented below the FF-A core device, and probing is deferred until pKVM
   has completed its FF-A proxy initialisation.

2. The platform-driver conversion is also adjusted so systems without FF-A
   support treat early unsupported transport/version discovery as a quiet
   probe miss rather than a failed matched probe.

3. The register-based partition discovery path now honors the descriptor
   size reported by FFA_PARTITION_INFO_GET_REGS. This keeps parsing aligned
   for newer FF-A descriptor layouts while still copying only the fields the
   driver understands.

4. Also included is an Arm SMCCC fix for the optional SOC_ID name call: the
   name query now uses the SMC64 function ID required for returning eight
   characters per register.

* tag 'ffa-updates-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_ffa: Treat missing FF-A feature on a platform as a probe miss
  firmware: smccc: Fix Arm SMCCC SOC_ID name call
  firmware: arm_ffa: Honor partition info descriptor size
  firmware: arm_ffa: Defer probe until pKVM is initialized
  firmware: arm_ffa: Set the core device as FF-A device parent
  firmware: arm_ffa: Register core as a platform driver
  Revert "firmware: arm_ffa: Change initcall level of ffa_init() to rootfs_initcall"
  firmware: arm_ffa: Fix sched-recv callback partition lookup
  firmware: arm_ffa: Snapshot notifier callbacks under lock
  firmware: arm_ffa: Align RxTx buffer size before mapping
  firmware: arm_ffa: Validate framework notification message layout
  firmware: arm_ffa: Keep framework RX release under lock
  firmware: arm_ffa: Bound PARTITION_INFO_GET_REGS copies
  firmware: arm_ffa: Unregister bus notifier on teardown for FF-A v1.0
  firmware: arm_ffa: Fix per-vcpu self notifications handling in workqueue
  firmware: arm_ffa: Avoid collapsing NPI work from different CPUs
  firmware: arm_ffa: Skip free_pages on RX buffer alloc failure
  firmware: arm_ffa: Check for NULL FF-A ID table while driver registration

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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