ChanServ changed the topic of #asahi-dev to: Asahi Linux: porting Linux to Apple Silicon macs | Non-development talk: #asahi | General development | GitHub: https://alx.sh/g | Wiki: https://alx.sh/w | Logs: https://alx.sh/l/asahi-dev
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<sven>
janneg: just to confirm: atcphy3 is used on e.g. j314 only for dp2hdmi but there are other t600x machines where that same atcphy3 is connected to a regular type c port?
<janneg>
sven: yes, both mac studios use atcphy3 for usb-c (on the first die)
<sven>
ok, guess that means we have no other choice than that apple,mode-fixed-dp property :/
<janneg>
can't we do the mode switching I did from dcp via phy_set_mode() conditionally
<sven>
haven't read that far yet. i've only looked at the atcphy code 'cause i'm merging your changes with my local new code
<janneg>
there is a `phy_set_mode_ext(dptx->atcphy, PHY_MODE_DP, dcp->index);` in dptxep.c
<janneg>
ignore the dcp->index that is required for dptx-phy since that has an integrated mux to select the dcp source
<janneg>
I still need to find a better solution for that
<sven>
ok, i'll take a look
<janneg>
not sure what the best solution for the dp-only phy is. I was also thinking about using the the typec_switch/mux directly to configure atc-phy to dp-only in normal orientation
<janneg>
but since I have the phy_set_mode call anyway to turn dptx-phy on that was the most abvious hack to make configure atcphy
<kettenis>
some SoCs use additional cells in the PHY specification to set the mode
<kettenis>
see for example how the "rockchip,rk3588-naneng-combphy" is switched between PCIE and SATA mode for certain boards
<janneg>
I think atcphy does already the same. that's used to get usb2, usb3 and dp phys from the single atcphy, see atcphy_xlate()
<kettenis>
right, although in the rk3588 case PCIE and SATA are mutually exclusive
<kettenis>
probably not the solution you'r looking for
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<sven>
is that dp only atcphy still connected to a tipd chip?
<janneg>
I don't think so
<janneg>
there are 4 cd3217 instances but I think the 4th one is magsafe since that should still use usb pd
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<nicolas17>
I heard the KDE booth at 37c7 has a Wayland Feedback Collection Bin, you should go leave feedback
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<chadmed>
the eco folks were also giving a talk iirc