On Fri, 20 Oct 2023 11:33:18 +0200, Luca Weiss wrote: > Allow specifying data-lanes to reverse the muxing orientation between > AUX+/- and SBU1/2 where necessary by the hardware design. > > In the mux there's a switch that needs to be controlled from the OS, and > it either connects AUX+ -> SBU1 and AUX- -> SBU2, or the reverse: AUX+ > -> SBU2 and AUX- -> SBU1, depending on the orientation of how the USB-C > connector is plugged in. > > With this data-lanes property we can now specify that AUX+ and AUX- > connections are swapped between the SoC and the mux, therefore the OS > needs to consider this and reverse the direction of this switch in the > mux. > > _______ _______ > | | | > |-- HP --| | > |-- MIC --| |or > SoC | | MUX |-- SBU1 ---> To the USB-C > Codec |-- AUX+ --| |-- SBU2 ---> connected > |-- AUX- --| | > ______| |_____| > > (thanks to Neil Armstrong for this ASCII art) > > Signed-off-by: Luca Weiss <luca.we...@fairphone.com> > --- > .../devicetree/bindings/usb/fcs,fsa4480.yaml | 29 > +++++++++++++++++++++- > 1 file changed, 28 insertions(+), 1 deletion(-) >
Reviewed-by: Rob Herring <r...@kernel.org>
