[coreboot-gerrit] Change in coreboot[master]: src/ec/google/chromeec: Get Type-C Mux info from EC (TCPM)

[Tim Wawrzynczak (Code Review)]

Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/42078 )

Change subject: src/ec/google/chromeec: Get Type-C Mux info from EC (TCPM)
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Patch Set 14:

(1 comment)

https://review.coreboot.org/c/coreboot/+/42078/9/src/ec/google/chromeec/ec.c 
File src/ec/google/chromeec/ec.c:

https://review.coreboot.org/c/coreboot/+/42078/9/src/ec/google/chromeec/ec.c... 
PS9, Line 1490: 	*port_map = resp.reserved;
> i wanted to use this method in depthcharge but it was rejected there. […]

Ah, I see. That's true, it can be obtained that way, but we do not have any of that info in the devicetree yet.  It is being added right now, see CB:45878.

So then, the way to get at the data would be (on top of the patch mentioned above):
In ec_acpi, use the EC's `struct device *dev` config (chip_info) to get mux_conn[0] for port 0 and mux_conn[1] for port 1. Those dev's config has `usb2_port_number` and `usb3_port_number` fields, which are what we need here. That should go in the mainboard code too, as it's for chromeec boards right now.