[PATCH v2] wifi: mt76: mt7921e: fix random fw download fail

[AngeloGioacchino Del Regno]

Il 12/09/22 10:45, Deren Wu ha scritto:
> From: Deren Wu <deren.wu at mediatek.com>
> 
> In case of PCIe interoperability problem shows up, the firmware
> payload may be corrupted in download stage. Turn off L0s to keep
> fw download process accurately.
> 
> [ 1093.528363] mt7921e 0000:3b:00.0: Message 00000007 (seq 7) timeout
> [ 1093.528414] mt7921e 0000:3b:00.0: Failed to start patch
> [ 1096.600156] mt7921e 0000:3b:00.0: Message 00000010 (seq 8) timeout
> [ 1096.600207] mt7921e 0000:3b:00.0: Failed to release patch semaphore
> [ 1097.699031] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1098.758427] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1099.834408] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1100.915264] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1101.990625] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1103.077587] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1104.173258] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1105.248466] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1106.336969] mt7921e 0000:3b:00.0: Timeout for driver own
> [ 1106.397542] mt7921e 0000:3b:00.0: hardware init failed
> 
> Cc: stable at vger.kernel.org
> Fixes: bf3747ae2e25 ("mt76: mt7921: enable aspm by default")
> Signed-off-by: Deren Wu <deren.wu at mediatek.com>

[For MT8195 Acer Tomato Chromebook]
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>