aboutsummaryrefslogtreecommitdiff
path: root/resources/libreboot/patch/0004-lenovo-x60-use-correct-BLC_PWM_CTL-value.patch
blob: 7f0d29a95a3b0d2cd6ed3c2a436907c03fef4eaa (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
From c18e0e855487069dd2c836d9a48b1e63fb7d47d3 Mon Sep 17 00:00:00 2001
From: Francis Rowe <info@gluglug.org.uk>
Date: Mon, 22 Jun 2015 17:37:06 +0100
Subject: [PATCH 04/13] lenovo/x60: use correct BLC_PWM_CTL value

Bit 16 in BLC_PWM_CTL enables brightness controls, but the
current value is generic. Use the proper value, obtained
by reading BLC_PWM_CTL while running the VBIOS.

Change-Id: Ib273359e1c285b405a9bb26fc217c2f7e255b99f
Signed-off-by: Francis Rowe <info@gluglug.org.uk>
---
 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 b20dde5..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" = "0x1290128"
+	register "gpu_backlight" = "0x879F879E"
 
 	device cpu_cluster 0 on
 		chip cpu/intel/socket_mFCPGA478
-- 
1.9.1