Re: [PATCH v4 12/18] usb: typec: qcom: Add Qualcomm PMIC TCPM support

Bryan O'Donoghue
2023-03-24T16:03:21Z

On 24/03/2023 15:09, Jianhua Lu wrote:
> I get schematics of same vendor's similar device, it shows usb vbus is
> connected to charger pump. It can be the main reason that can't detect vbus, but
> I don't know why type-c can work normally.

oki doki that all makes sense - the "charger pump" is supplying vbus
most likely - you can confirm or invalidate this theory by connecting a
1.0/2.0 device to your external hub - making sure it is unpowered.

vbus *should* flow through the Type-C port into your external hub and
into the 1.0/2.0 device, irrespective of vcon

Either way that's a 2x input on the VSafe5 - I'll downgrade this to a
dev_warn() or perhaps even a dev_dbg()

thx

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bod