Messages in this thread | | | Date | Tue, 24 Oct 2023 14:33:39 -0500 | From | Rob Herring <> | Subject | Re: [PATCH v2 1/3] dt-bindings: usb: fsa4480: Add data-lanes property to endpoint |
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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.weiss@fairphone.com> > --- > .../devicetree/bindings/usb/fcs,fsa4480.yaml | 29 +++++++++++++++++++++- > 1 file changed, 28 insertions(+), 1 deletion(-) >
Reviewed-by: Rob Herring <robh@kernel.org>
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