Reporting a bug for QCA6174 802.11ac

Guilherme Íscaro cabelitostos at
Wed Apr 5 12:48:18 PDT 2017

Hi, I have a question

Are you sure this is an ASPM problem? I've disable pcie_aspm during
boot (Kernel boot option - pcie_aspm=off) and the problem still

2017-03-31 12:11 GMT-03:00 Adrian Chadd <adrian at>:
> hiya,
> hm, what's the reference driver do for pci powersave versus aspm? Does
> it change any pci config space register settings for allowable sleep
> states?
> -adrian
> On 31 March 2017 at 04:12, Kalle Valo <kvalo at> wrote:
>> Guilherme Íscaro <cabelitostos at> writes:
>>> I would like to inform that I "fixed" the problem. After my last
>>> email, I cloned the linux repo and started to hack around the driver
>>> source code. By looking at the dmesg output that I provided to you
>>> guys, I noticed that for some reason the board was not being properly
>>> awake ( ath10k_pci_wake_wait() returns ETIMEOUT). I so sick with this
>>> problem that I hardcoded "ar_pci->pci_ps" to false, thus the board
>>> can't sleep now.
>> Sounds like a problem with your PCI bus or the platform/laptop so try
>> different PCI settings both on BIOS and kernel. I have seen lots of talk
>> about ASPM, especially with some iwlwifi devices, so you should also
>> investigate about that.
>> Please let us know if you find anything, it's always valuable
>> information. Have fun googling :)
>> --
>> Kalle Valo
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