From 30b0666a7d2b0d8265433cb308ed1bbbabd10674 Mon Sep 17 00:00:00 2001 From: Francis Rowe Date: Sat, 11 Oct 2014 16:43:28 +0100 Subject: [PATCH 06/17] lenovo/x60: 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: Id855c4e91fe71fb489739e62fbe99ca22841acd2 Signed-off-by: Francis Rowe --- src/mainboard/lenovo/x60/devicetree.cb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/mainboard/lenovo/x60/devicetree.cb b/src/mainboard/lenovo/x60/devicetree.cb index a3d31a6..9c3c524 100644 --- a/src/mainboard/lenovo/x60/devicetree.cb +++ b/src/mainboard/lenovo/x60/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" = "0" - register "gpu_backlight" = "0x1280128" + register "gpu_backlight" = "0x879F879E" device cpu_cluster 0 on chip cpu/intel/socket_mFCPGA478 -- 1.9.1