lenovo/t440p: fix keyboard backlight
It is found that keyboard backlight in T440p is enabled by clearing
bit 3 of EC RAM 0x01. This patch sets has_keyboard_backlight in
devicetree.cb and also corrects the CMOS configuration.
Change-Id: Ib4c2b1591d26e2bb33f9549e3933efe9a6e0b043
Signed-off-by: Iru Cai <mytbk920423@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38650
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Dennis Witzig <dennis@wtzg.de>
Reviewed-by: Alexander Couzens <lynxis@fe80.eu>
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"