[coreboot-gerrit] Change in ...coreboot[master]: google/butterfly: add cpu/gpu pwm backlight register values

[Matt DeVillier (Code Review)]

Matt DeVillier has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/30819

Change subject: google/butterfly: add cpu/gpu pwm backlight register values
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google/butterfly: add cpu/gpu pwm backlight register values

Required for functional internal display on lumpy using libgfxinit.

Test: boot/build butterfly, verify internal display functional
prior to OS driver loading.

Change-Id: Ib8060f2d1ad0694f0886d35c83763907f61b47b1
Signed-off-by: Matt DeVillier 
---
M src/mainboard/google/butterfly/devicetree.cb
1 file changed, 4 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/19/30819/1

diff --git a/src/mainboard/google/butterfly/devicetree.cb b/src/mainboard/google/butterfly/devicetree.cb
index 692414c..8f88c24 100644
--- a/src/mainboard/google/butterfly/devicetree.cb
+++ b/src/mainboard/google/butterfly/devicetree.cb
@@ -15,6 +15,10 @@
    register "gpu_panel_power_backlight_on_delay" = "2100"	# T3: 210ms
    register "gpu_panel_power_backlight_off_delay" = "2100"	# T4: 210ms

+	# Set backlight PWM values
+	register "gpu_cpu_backlight" = "0x000001e8"
+	register "gpu_pch_backlight" = "0x03d00000"
+
    register "max_mem_clock_mhz" = "666"			# DDR3-1333

device cpu_cluster 0 on