Patch Set 5:
By comparing the gpio.c generated by autoport on a t430s that have a TB and the gpio.c in coreboot's tree, I fount that gpio27 is set as GPIO-INPUT on devices that have a TB, while it is set as GPIO-OUTPUT-HIGH on the gpio.c in coreboot's tree (it might reflex the config of devices that do not have a TB).
Is gpio27 the detection gpio for TB we are looking for? And if it is, what should be done to the code in the next step?
It might be used for TB, but I would expect the GPIO to be input on all boards. It would change level if TB is installed, compared to a board where it isn't.
If you want to add a TODO that's fine for me.
Patch set 5:Code-Review +2
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