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Arm FF-A driver updates for v6.11

Browse source 
The main addition is the split of bus and driver into distinct modules
 The FF-A bus module is initialized at subsys_initcall level when builtin.
 
 FF-A drivers initialization is now changed to module_init level so that
 pKVM ffa proxy is all setup and running in case pKVM hypervisor needs to
 trap and handle FF-A calls.
 
 One of the reason for not having this split from the beginning is the
 need to workaround the FF-A v1.0 NULL UUID. The FF-A bus layer called
 into FF-A driver and populated the device UUID if it matches with the
 driver attempting to match. Moving the workaround away from the FF-A
 bus layer to the FF-A core driver as a bus notifier will help to remove
 the dependency.
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Merge tag 'ffa-updates-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers

Arm FF-A driver updates for  v6.11

The main addition is the split of bus and driver into distinct modules
The FF-A bus module is initialized at subsys_initcall level when builtin.

FF-A drivers initialization is now changed to module_init level so that
pKVM ffa proxy is all setup and running in case pKVM hypervisor needs to
trap and handle FF-A calls.

One of the reason for not having this split from the beginning is the
need to workaround the FF-A v1.0 NULL UUID. The FF-A bus layer called
into FF-A driver and populated the device UUID if it matches with the
driver attempting to match. Moving the workaround away from the FF-A
bus layer to the FF-A core driver as a bus notifier will help to remove
the dependency.

* tag 'ffa-updates-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
  firmware: arm_ffa: Split bus and driver into distinct modules
  firmware: arm_ffa: Move the FF-A v1.0 NULL UUID workaround to bus notifier

Link: https://lore.kernel.org/r/20240624103451.2870146-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2024-06-27 16:41:41 +02:00
commit 87dcb2f079
4 changed files with 58 additions and 29 deletions
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