[PATCH 0/2][SRU][J][OEM-5.14] MT7921[14c3:7961] ASPM is disabled and it affects power consumption

AceLan Kao acelan.kao at canonical.com
Tue Mar 8 03:39:33 UTC 2022

From: "Chia-Lin Kao (AceLan)" <acelan.kao at canonical.com>

BugLink: https://bugs.launchpad.net/bugs/1955882

MT7921 is disabled by default, and it affects the power consumption.

MTK pointed out we need this commit which is included in v5.16-rc1
   bf3747ae2e25 mt76: mt7921: enable aspm by default
After ASPM is enabled, we found the card disappears after reboot sometimes,
so MTK provides another commit for it

Verified on Dell machines with MT7921 wifi card.

[Where problems could occur]
Enable device ASPM is always risky, we've done our best to test these
patches, and no regression could be found.

Sean Wang (1):
  mt76: mt7921: enable aspm by default

hsiao-yuan.kan (1):
  UBUNTU: SAUCE: mt76: mt7921e: fix possible probe failure after reboot

 .../net/wireless/mediatek/mt76/mt7921/dma.c   | 115 ----------------
 .../net/wireless/mediatek/mt76/mt7921/mcu.c   |  19 ++-
 .../wireless/mediatek/mt76/mt7921/mt7921.h    |   1 +
 .../net/wireless/mediatek/mt76/mt7921/pci.c   | 127 +++++++++++++++++-
 4 files changed, 141 insertions(+), 121 deletions(-)


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