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pds_core: add PLDM firmware update support via devlink flash

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Implement PLDM FW Update in the pds_core driver using the upstream
pldmfw API. This allows updating an entire PLDM FW package at once
or updating specific firmware components by name.

Flash the entire image:
  devlink dev flash pci/0000:b5:00.0 file firmware.pldmfw

Flash a specific component from the PLDM FW package:
  devlink dev flash pci/0000:b5:00.0 \
    file firmware.pldmfw component fw.cpld

Per-component update uses driver-defined component names (fw, fw.cpld,
etc.). Not all components support per-component update - devlink will
reject the request if the specified component cannot be updated.

Signed-off-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Nikhil P. Rao <nikhil.rao@amd.com>
Link: https://patch.msgid.link/20260730-upstream_v8-v12-3-136cd174ee85@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Brett Creeley 2026-07-30 04:25:20 +00:00 • committed by Jakub Kicinski
commit fb918581d4
9 changed files with 1411 additions and 11 deletions
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