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- From e226918085e01a51916357b4c8d667e31e040fe4 Mon Sep 17 00:00:00 2001
- From: Francis Rowe <info@gluglug.org.uk>
- Date: Mon, 15 Jun 2015 19:59:46 +0100
- Subject: [PATCH 09/17] 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@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 fdced26..5f90a73 100644
- --- a/src/mainboard/lenovo/t60/devicetree.cb
- +++ b/src/mainboard/lenovo/t60/devicetree.cb
- @@ -27,7 +27,7 @@ chip northbridge/intel/i945
- register "gpu_hotplug" = "0x00000220"
- register "gpu_lvds_use_spread_spectrum_clock" = "1"
- register "gpu_lvds_is_dual_channel" = "1"
- - register "gpu_backlight" = "0x1280128"
- + register "gpu_backlight" = "0x58BF58BE"
-
- device cpu_cluster 0 on
- chip cpu/intel/socket_mFCPGA478
- --
- 1.9.1
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