gma power: Allow to explicitly enable DDI/Aux power
We used to enable power for DP-aux channels quite implicitly by faking
configs that use a specific port. As Tiger Lake requires us to enable
a DDI port's power late during the modesetting sequence, we introduce
a new API for such cases, and also use it for the DP-aux case.
Tested on HSW, and BXT & CFL where we enable PW2 explicitly now.
Change-Id: I1fd6348ff4855557166495613c6a181f85a818f4
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.sourcearcade.org/c/libgfxinit/+/461
Tested-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/common/haswell/hw-gfx-gma-power_and_clocks.adb b/common/haswell/hw-gfx-gma-power_and_clocks.adb
index 6a00a5f..1aea48e 100644
--- a/common/haswell/hw-gfx-gma-power_and_clocks.adb
+++ b/common/haswell/hw-gfx-gma-power_and_clocks.adb
@@ -334,6 +334,14 @@
end if;
end Power_Set_To;
+ procedure Power_Up (Port : Active_Port_Type; Success : out Boolean) is
+ begin
+ if Port /= eDP then
+ PDW_On;
+ end if;
+ Success := True;
+ end Power_Up;
+
procedure Power_Up (Old_Configs, New_Configs : Pipe_Configs) is
begin
if not Need_PDW (Old_Configs) and Need_PDW (New_Configs) then