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Upgrade drivers/of to support Arm SystemReady IR

Al Stone requested to merge ahs3/edge-stream-9:of-v1 into main

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2071840

While POWER systems already use Open Firmware (drivers/of), it is not exactly the same as full DeviceTree support. Arm SystemReady IR platforms use DeviceTree extensively. This patch set brings this subsystem up to date with Linux 5.19 so that all of the DeviceTree functionality needed for Arm SystemReady IR can be supported.

NB: this is one of a series of patch sets needed to fully support Arm SystemReady IR in the kernel; drivers/base and drivers/firmware are also being updated and will end up depending on this patch set. Individual drivers for specific SystemReady IR compliant platforms will also be needed.

v3:

  • fixed incorrent commit ids in the last three commits

v2:

  • Added some labels for Omitted-fixes.
  • Added fixes noted in Mark's review

Signed-off-by: Al Stone ahs3@redhat.com

Edited by Al Stone

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