[PATCH 0/1][SRU][OEM-5.13/U] Fix firmware reload failure of MT7921

Aaron Ma aaron.ma at canonical.com
Mon Jul 19 09:07:00 UTC 2021

BugLink: https://bugs.launchpad.net/bugs/1936790

SRU justification:

MT7921 is supported on 5.13 kernel, mt76 driver failed to work when
SRUed for 5.13+ kernel only.

MT7921 needs both driver and firmware, firmware is SRUed.
When reboot, the firmware is already reloaded, driver probe breaks.
Continue to probe if firmware status is OK.

Verified on hardware, After reboot system wifi works fine.

[Where problems could occur]
The MT7921 wifi may not work.

Aaron Ma (1):
  mt76: mt7921: continue to probe driver when fw already downloaded

 drivers/net/wireless/mediatek/mt76/mt7921/mcu.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)


More information about the kernel-team mailing list