Quoting Prashant Malani (2022-06-28 13:56:22) > On Tue, Jun 28, 2022 at 1:40 PM Stephen Boyd <swboyd@xxxxxxxxxxxx> wrote: > > > > I suppose none of those things matter though as long as there is some > > typec switch registered here so that the driver can be informed of the > > pin assignment. Is it right that the "mode-switch" property is only > > required in DT if this device is going to control the mode of the > > connector, i.e. USB+DP, or just DP? Where this device can't do that > > because it doesn't support only DP. > > If the anx7625 is used just to route all lanes from 1 usb-c-connector (i.e > the USB+DP case), a mode-switch wouldn't be of much use, since one > would also route the CC lines to the built-in PD controller; so it will > already have knowledge of what mode the switch is in. > > The mode-switch is likely only relevant for this hardware configuration( > it's "DP only" in the sense that the USB pins to the SoC never go anywhere). > One only has 2 SS lanes each (from each usb-c-connector). > > Since there is no CC-line, the anx7625 needs to know which one has DP > enabled on it. Can the CC line be "captured" and not actually sent to the anx7625? I imagine if that is possible, maybe the CC lines would go to some micro-controller or something that did more typec management things and then the anx7625 driver would need to do software control of the mode and orientation control.
