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<set_>
Dang it.
<set_>
party is over, Rover. Send sleep on over!
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<kona>
sorry for the noise :(
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<vvn>
hi there -- does audio support interfere with gpio pinmux on the bbb?
<zmatt>
vvn: audio conflicts with certain pins, just as video conflicts with certain pins
<vvn>
ok
<zmatt>
the P9 tab of my pins spreadsheet marks which pins are used by hdmi audio (when enabled): https://goo.gl/Jkcg0w#gid=1775283126
<zmatt>
P9.25, P9.28, P9.29, P9.31
<zmatt>
(I'm pretty sure this could be reduced to only P9.25 + P9.28 by configuring McASP to send an S/PDIF signal and the HDMI framer to accept that, but I have no idea what would need to be done in the kernel and/or device tree to accomplish this)
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<vvn>
zmatt: great thanks, your document helped me confirm that I'm using most (of the pink) pins for gpios or uart so I can disable the audio feature in my build system to refect that.
<zmatt>
I mean, normally you *can't* use any of those pins for other purposes if audio is enabled, since they'll be in use by audio
<vvn>
true
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<vvn>
the bbb seems to have apm as well, is it part of the soc?
<zmatt>
apm? what's apm?
<vvn>
power management*
<zmatt>
oh that apm, I think the term "apm" specifically refers to an x86 thing
<zmatt>
but obviously there's power management
<zmatt>
yeah APM is an old bios feature that predates ACPI
<zmatt>
(neither of which applies to the bbb)
<vvn>
is power management on the bbb a feature of the SoC or something else?
<zmatt>
the SoC has power management features, the PMIC also plays a role
<zmatt>
like, power management is very general term that can cover many things
<zmatt>
most of them requiring a combination of software and hardware support
<zmatt>
there's dvfs (dynamic voltage and frequency scaling), cpuidle (allowing the system to automatically enter lower power states when idle), suspend (even lower power states enterable on explicit request), runtime power management of individual peripherals