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drivers/intel/gma: Depend less on default fb values 

Instead of hard-coding a lot of default values of the framebuffer config,
we use the values provided by Display_Probing.Scan_Ports() and only
overwrite what is necessary. This way we are more independent from
changes inside libgfxinit.

Change-Id: I121bbd926532c27321446282aa334cc45cdbeef1
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/25452
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit is contained in:
Nico Huber 2018-03-29 15:15:10 +02:00 committed by Patrick Georgi
parent 06c8c0d1fe
commit 71cbd71eb5
2 changed files with 10 additions and 12 deletions
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11
src/drivers/intel/gma/hires_fb/gma.adb
View File

@ -79,12 +79,11 @@ is
min_v := pos16'min (min_v, configs (i).Mode.V_Visible);
end loop;
fb :=
(Width => Width_Type (min_h),
Height => Height_Type (min_v),
BPC => 8,
Stride => Div_Round_Up (Width_Type (min_h), 16) * 16,
Offset => 0);
fb := configs (Primary).Framebuffer;
fb.Width := Width_Type (min_h);
fb.Height := Height_Type (min_v);
fb.Stride := Div_Round_Up (fb.Width, 16) * 16;
for i in Pipe_Index loop
exit when configs (i).Port = Disabled;

11
src/drivers/intel/gma/text_fb/gma.adb
View File

@ -51,12 +51,11 @@ is
vga_io_init;
vga_textmode_init;
configs (Primary).Framebuffer :=
(Width => 640,
Height => 400,
BPC => Auto_BPC, -- ignored for VGA plane
Stride => 320, -- ignored
Offset => VGA_PLANE_FRAMEBUFFER_OFFSET);
-- override probed framebuffer config
configs (Primary).Framebuffer.Width := 640;
configs (Primary).Framebuffer.Height := 400;
configs (Primary).Framebuffer.Offset :=
VGA_PLANE_FRAMEBUFFER_OFFSET;
HW.GFX.GMA.Dump_Configs (configs);
HW.GFX.GMA.Update_Outputs (configs);