mb/google/atlas: Add libgfxinit support
Add Kconfig, panel delays extracted from VBT (and confirmed by Linux)
Test: build/boot Atlas with libgfxinit and Tianocore payload
Change-Id: I94c227cd4f020db719bf81118d983493752bb00f
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37989
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/poppy/variants/atlas/devicetree.cb b/src/mainboard/google/poppy/variants/atlas/devicetree.cb
index ac86e79..52a2dc7 100644
--- a/src/mainboard/google/poppy/variants/atlas/devicetree.cb
+++ b/src/mainboard/google/poppy/variants/atlas/devicetree.cb
@@ -1,5 +1,12 @@
chip soc/intel/skylake
+ register "gpu_pp_up_delay_ms" = "200"
+ register "gpu_pp_down_delay_ms" = "50"
+ 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" = "200"
+
# Deep Sx states
register "deep_s3_enable_ac" = "0"
register "deep_s3_enable_dc" = "0"