On 22/03/2024 11:52, Dmitry Baryshkov wrote:
The PMIC Type-C controller doesn't have separate role-switching signal.
Instead it has an HS signal connection between embedded USB-C connector
node and the HS port of the USB controller.
I take your point on port as a signal but the way type-c determines
data-role is via the DR_Swap message.
https://www.embedded.com/usb-type-c-and-power-delivery-101-power-delivery-protocol/
We receive an IRQ which is a packet containing DR_Swap - TCPM consumes
that data and does a data-role switch.
The port then establishes the link between typec-port and redriver or PHY.
So, I think HS should be dropped from the commit logs and names in both
series.
BTW for the GLINK devices I think the adsp firmware just notifies the
APSS of the data-role switch so, these types of devices probably should
have an epdoint with "usb_role_switch" in the name.
---
bod
