wifi: mt76: mt7996: fix reg addr remap when addr is 0

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When addr is less than the hardcoded threshold in __mt7996_reg_addr,
it indicates that remapping is unnecessary.
Currently, the flow remaps address 0x0 to MT_HIF_REMAP_BASE_L2,
which is incorrect.
To address this, modify __mt7996_reg_addr to return INVALID_REG_ADDR
if the address is not below the hardcoded value or is not present in
the mt7996_reg_map array.
Additionally, update the remap condition to check if addr is equal to
INVALID_REG_ADDR.

Fixes: 3687854d3e ("wifi: mt76: mt7996: add locking for accessing mapped registers")
Signed-off-by: StanleyYP Wang <StanleyYP.Wang@mediatek.com>
Link: https://patch.msgid.link/20260727150434.1778520-5-nbd@nbd.name
Signed-off-by: Felix Fietkau <nbd@nbd.name>

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StanleyYP Wang 2026-07-27 15:04:24 +00:00 • committed by Felix Fietkau

parent 8370aebd26

commit eb906eeff2

1 changed files with 7 additions and 5 deletions

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drivers/net/wireless/mediatek/mt76/mt7996/mmio.c

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