[coreboot-gerrit] Change in coreboot[master]: [TESTME] mb/lenovo/t410: Complete and fix hybrid-graphics config

[Nico Huber (Code Review)]

Attention is currently required from: Paul Menzel, Alexander Couzens.
Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/63530 )

Change subject: [TESTME] mb/lenovo/t410: Complete and fix hybrid-graphics config
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Patch Set 1:

(1 comment)

File src/mainboard/lenovo/t410/devicetree.cb:

https://review.coreboot.org/c/coreboot/+/63530/comment/87771d9e_ce7f47e4 
PS1, Line 143: 					register "ddc_mux_gpio" = "54"
> Can’t `has_ddc_mux_gpio` be derived from having `ddc_mux_gpio` set?

We don't know if a value is set. If it's not initialized, it's 0. But that
doesn't tell us if it's an implicit 0 or if somebody actually set it to 0.