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lenovo/t440p: fix keyboard backlight

Change-Id: Ib4c2b1591d26e2bb33f9549e3933efe9a6e0b043
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
---
M src/mainboard/lenovo/t440p/cmos.layout
M src/mainboard/lenovo/t440p/devicetree.cb
2 files changed, 5 insertions(+), 3 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/50/38650/1

diff --git a/src/mainboard/lenovo/t440p/cmos.layout b/src/mainboard/lenovo/t440p/cmos.layout
index 8c5fb0b..e61886b 100644
--- a/src/mainboard/lenovo/t440p/cmos.layout
+++ b/src/mainboard/lenovo/t440p/cmos.layout
@@ -103,9 +103,10 @@
 8     1     Primary
 9     0     AHCI
 9     1     Compatible
-10    0     Both
-10    1     Keyboard only
-10    2     Thinklight only
+# Haswell ThinkPads has no Thinklight
+#10    0     Both
+10    1     Keyboard
+#10    2     Thinklight only
 10    3     None
 #12    0     Integrated Only
 #12    1     Discrete Only
diff --git a/src/mainboard/lenovo/t440p/devicetree.cb b/src/mainboard/lenovo/t440p/devicetree.cb
index 7e5e616..b63767e 100644
--- a/src/mainboard/lenovo/t440p/devicetree.cb
+++ b/src/mainboard/lenovo/t440p/devicetree.cb
@@ -83,6 +83,7 @@
 					register "config1" = "0x0d"
 					register "config2" = "0xa8"
 					register "config3" = "0xc4"
+					register "has_keyboard_backlight" = "1"
 					register "event2_enable" = "0xff"
 					register "event3_enable" = "0xff"
 					register "event4_enable" = "0xd0"

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