[coreboot-gerrit] Patch set updated for coreboot: lenovo/t60: Enable brightness controls (native graphics)
Stefan Reinauer (stefan.reinauer@coreboot.org)
gerrit at coreboot.org
Mon Nov 21 23:02:26 CET 2016
Stefan Reinauer (stefan.reinauer at coreboot.org) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/10552
-gerrit
commit adf8966abd6f00a9f3654f06d594038850592f37
Author: Francis Rowe <info at gluglug.org.uk>
Date: Mon Jun 15 19:59:46 2015 +0100
lenovo/t60: Enable brightness controls (native graphics)
This makes the Fn Home/End keys work for controlling the
brightness of the display. Value obtained by reading
BLC_PWM_CTL when running the VBIOS (option ROM).
On i945 legacy brightness control is enabled by a single
bit in BLC_PWM_CTL. It's bit 16 or bit 0 (the other one
reverses polarity). Set the bit to enable brightness
controls.
Change-Id: I22e261f2ce28ec81cd208a73e6311ec67146eb72
Signed-off-by: Francis Rowe <info at gluglug.org.uk>
---
src/mainboard/lenovo/t60/devicetree.cb | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/mainboard/lenovo/t60/devicetree.cb b/src/mainboard/lenovo/t60/devicetree.cb
index 2dc9f45..59fabcf 100644
--- a/src/mainboard/lenovo/t60/devicetree.cb
+++ b/src/mainboard/lenovo/t60/devicetree.cb
@@ -22,7 +22,7 @@ chip northbridge/intel/i945
register "gpu_hotplug" = "0x00000220"
register "gpu_lvds_use_spread_spectrum_clock" = "1"
- register "gpu_backlight" = "0x1280128"
+ register "gpu_backlight" = "0x58BF58BE"
device cpu_cluster 0 on
chip cpu/intel/socket_mFCPGA478
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