gma: Make cleaning the hardware state optional
In Initialize(), the state of the graphics hardware is reset to a
known state (i.e. everything is turned off first). That's unnecessary
in the coreboot case where we just came out of reset. Thus, make the
state cleaning optional with a `Clean_State` parameter that defaults
to `False`.
Change-Id: Ifee6ec9e9876fca8a715684718014917a3e35879
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/17758
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
diff --git a/common/hw-gfx-gma.ads b/common/hw-gfx-gma.ads
index 114f87e..87b464a 100644
--- a/common/hw-gfx-gma.ads
+++ b/common/hw-gfx-gma.ads
@@ -63,6 +63,7 @@
procedure Initialize
(MMIO_Base : in Word64 := 0;
Write_Delay : in Word64 := 0;
+ Clean_State : in Boolean := False;
Success : out Boolean)
with
Global =>