tree 87a020df25668d680eeac96fd2c033c8275f7136
parent 9e96a45649a8e7c8d945220bbaa0e37ff1af8adf
author Nico Huber <nico.h@gmx.de> 1568660600 +0200
committer Nico Huber <nico.h@gmx.de> 1570225033 +0000

gma config_helpers: Add dot-clock helper functions

Highest_Dotclock() returns the highest dot clock in a set of
pipe configurations.

Limit_Dotclocks() reduces any dot clock to the given maximum
if it exceeds the latter. To prove that Limit_Dotclocks() only
changes timing, we introduce Stable_FB().

Change-Id: Iaa25e774d38c7af12150523739d902cf8e758674
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/libgfxinit/+/35529
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>