mb/lenovo/x200/blc: Add LTN121AT07-L02 at 750Hz
Its EDID string is "LTN121AT07L02". The vendor sets BLC_PWM_CTL to
0x31313131.
This frequency seems working well on the x200 with this panel, which
is said to be LED.
Change-Id: I8b0ec04c6f6fcb6d4027a5114698db87d7718191
Signed-off-by: Bill XIE <persmule@hardenedlinux.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74182
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/mainboard/lenovo/x200/blc.c b/src/mainboard/lenovo/x200/blc.c
index c03b3e9..330f1bc 100644
--- a/src/mainboard/lenovo/x200/blc.c
+++ b/src/mainboard/lenovo/x200/blc.c
@@ -18,6 +18,7 @@
{"B121EW09 V3 ", 400},
{"HV121WX4-120", 110}, /* Aftermarket AFFS lcd, works well at low pwm */
{"LTN121AT03001", 110},
+ {"LTN121AT07L02", 750}, /* Its part name is LTN121AT07-L02 */
{"LTN121AP03001", 750},
/* TODO: untested panels found on thinkwiki */
/* Generally CCFL runs best at lower PWM */