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slippy: set PWM values 

The dev screen was not displaying properly. With the
PWM values programmed the screen displays correctly.

Change-Id: I82b56a92e4168022082a2e519026977ee2ae0c9e
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/51472
Reviewed-on: http://review.coreboot.org/4172
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
This commit is contained in:
Aaron Durbin 2013-05-15 17:02:23 -07:00 committed by Alexandru Gagniuc
parent 270881af74
commit a54adc1bc7
1 changed files with 4 additions and 0 deletions
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4
src/mainboard/google/slippy/devicetree.cb
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@ -9,6 +9,10 @@ chip northbridge/intel/haswell
# Enable HDMI Hotplug with 6ms pulse # Enable HDMI Hotplug with 6ms pulse
register "gpu_dp_b_hotplug" = "0x06" register "gpu_dp_b_hotplug" = "0x06"
# Set backlight PWM values for eDP
register "gpu_cpu_backlight" = "0x00000200"
register "gpu_pch_backlight" = "0x04000000"
device cpu_cluster 0 on device cpu_cluster 0 on
chip cpu/intel/socket_rPGA989 chip cpu/intel/socket_rPGA989
device lapic 0 on end device lapic 0 on end