wifi: iwlwifi: mld: add BIOS revision compatibility check for PPAG command

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Prevent potential issues when newer BIOS revisions
are used with firmware that doesn't support them for
PER_PLATFORM_ANT_GAIN_CMD.

Without this check, the driver may attempt to use
BIOS configurations that are incompatible with the
current firmware version, leading to dropping of
command in firmware without any failure notification
to driver.

Signed-off-by: Pagadala Yesu Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20260320100746.79bf2bf398d0.I8161dbe1a04af3738e00ab0fc13fe3dbfa9094ec@changeid

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Pagadala Yesu Anjaneyulu 2026-03-20 10:09:14 +02:00 • committed by Miri Korenblit

parent 6e6d8f344d

commit 4aece67f1c

1 changed files with 16 additions and 0 deletions

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drivers/net/wireless/intel/iwlwifi/mld/regulatory.c

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