mb/google/rammus: add libgfxinit support
Add libgfxinit support for rammus. Use panel init values from VBT.
Test: build/boot rammus with libgfxinit and Tianocore payload
Change-Id: I4775a36d83bd67a0064a162effaf96649e9c186d
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37312
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/mainboard/google/poppy/variants/rammus/devicetree.cb b/src/mainboard/google/poppy/variants/rammus/devicetree.cb
index 70a4667..f44f9ce 100644
--- a/src/mainboard/google/poppy/variants/rammus/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/rammus/devicetree.cb
@@ -1,5 +1,12 @@
chip soc/intel/skylake
+ register "gpu_pp_up_delay_ms" = "200"
+ register "gpu_pp_down_delay_ms" = "500"
+ register "gpu_pp_cycle_delay_ms" = "600"
+ register "gpu_pp_backlight_on_delay_ms" = " 1"
+ register "gpu_pp_backlight_off_delay_ms" = "200"
+ register "gpu_pch_backlight_pwm_hz" = "1000"
+
# Deep Sx states
register "deep_s3_enable_ac" = "0"
register "deep_s3_enable_dc" = "0"