Messages in this thread | | | Date | Mon, 23 Jan 2023 16:29:23 +0000 | Subject | Re: [PATCH v4 0/6] Add MSM8939 SoC support with two devices | From | Bryan O'Donoghue <> |
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On 23/01/2023 16:21, Konrad Dybcio wrote: >> Please change it to VDDMX (without _AO). It will most likely not make >> any difference > Wouldn't it make wake-on-wifi-with-cpus-off possible? > (obviously given the wlan chip supports it and can ping > the cpu etc etc) > > Konrad
WOWLAN is done via SMD not by raising of an interrupt between WCNSS and APSS directly and we do hit VDD min with AO in 4.19.
So, so counter-intuitively so long as the SMD interrupt is unmasked in suspend - not a specific WCNSS interrupt, we will wake on WLAN.
Its a complete tangent but, the WCNSS firmware has an SMD RPC call called "wake-on-wlan" or somesuch which *would* wake the system via interrupt but, appears to never have been implemented...
Anyway.
--- bod
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