From eaea9c987ccb00a60f8ca4c4332deb72c3761a70 Mon Sep 17 00:00:00 2001 From: Matt DeVillier Date: Mon, 31 Dec 2018 15:07:42 -0600 Subject: samsung/lumpy: add cpu/gpu pwm backlight register values Required for functional internal display on lumpy using libgfxinit or Tianocore GOP driver Test: boot/build lumpy, verify internal display functional prior to OS driver loading. Change-Id: If62a4ae58082548e8a645d1a2de40705bdd2946e Signed-off-by: Matt DeVillier Reviewed-on: https://review.coreboot.org/c/30566 Tested-by: build bot (Jenkins) Reviewed-by: Nico Huber --- src/mainboard/samsung/lumpy/devicetree.cb | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src') diff --git a/src/mainboard/samsung/lumpy/devicetree.cb b/src/mainboard/samsung/lumpy/devicetree.cb index 0362b2c6cd..b34d024d4d 100644 --- a/src/mainboard/samsung/lumpy/devicetree.cb +++ b/src/mainboard/samsung/lumpy/devicetree.cb @@ -14,6 +14,10 @@ chip northbridge/intel/sandybridge register "gpu_panel_power_backlight_on_delay" = "2100" # T5: 210ms register "gpu_panel_power_backlight_off_delay" = "2100" # TD: 210ms + # Set backlight PWM values + register "gpu_cpu_backlight" = "0x000001e8" + register "gpu_pch_backlight" = "0x03d00000" + register "max_mem_clock_mhz" = "666" device cpu_cluster 0 on -- cgit v1.2.3