[coreboot-gerrit] Change in coreboot[master]: treewide: Configure PCI Bus Master based on Kconfig option

[Nico Huber (Code Review)]

Nico Huber has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/42460 )

Change subject: treewide: Configure PCI Bus Master based on Kconfig option
......................................................................

Patch Set 13:

(1 comment)

https://review.coreboot.org/c/coreboot/+/42460/13/src/soc/intel/broadwell/hd... 
File src/soc/intel/broadwell/hda.c:

https://review.coreboot.org/c/coreboot/+/42460/13/src/soc/intel/broadwell/hd... 
PS13, Line 96: 	pci_dev_request_bus_master(dev);
> AFAIUI, HDA init sequence sets bus master.

Why? we looked through many BSpecs/BWGs and didn't find much. I only recall
a single case where it was explicitly mentioned (GMA) but without any detail
why. For HDA, I could only find something in some sample assembler, likely
some copy-pasta that I wouldn't trust.