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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>