[coreboot-gerrit] Change in coreboot[master]: soc/amd/common: Add placeholder GPIO macro, PAD_UNCHANGED

[Martin Roth (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Furquan Shaikh, Marshall Dawson, Felix Held.
Martin Roth has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/52763 )

Change subject: soc/amd/common: Add placeholder GPIO macro, PAD_UNCHANGED
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Patch Set 1:

(1 comment)

Commit Message:

https://review.coreboot.org/c/coreboot/+/52763/comment/ec791e2a_7c8bd4f8 
PS1, Line 9: GPIOs can only be updated in gpio_configure_pads_with_override() if they
           : are present in the base table.  If they are not there, the override
           : does not work.  This allows them to be in the base table so that they can
           : be overridden without changing the existing configuration.
> I totally agree with the sentiment, and I had a patch that updated the behavior previously, but the  […]

https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+...