Re: [PATCH v1 4/4] arm64: dts: Add msm8939 Sony Xperia M4 Aqua

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On 20/04/2022 01:03, Bryan O'Donoghue wrote:
On 19/04/2022 20:27, Stephan Gerhold wrote:
tulip seems to have qcom,usbid-gpio = <&msm_gpio 110 0>; downstream.
Have you tried setting it up using linux,extcon-usb-gpio?
See e.g. msm8916-longcheer-l8910, it has a similar setup (it also uses
smb1360 for charging actually).

The advantage is that you don't need the manual role switching using
"usb-role-switch", USB OTG adapters should be detected automatically.

My understanding is "no new extcon" - certainly as driver implementations I assume that also extends to dts..

I think, if the driver supports only extcon interface, you have to use it (leaving aside a good nice option of rewriting qcom,ci-hdrc/ulpi to also support USB role switching mechanisms).


--
With best wishes
Dmitry



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