diff options
Diffstat (limited to 'src/mainboard/lenovo/x200/blc.c')
| -rw-r--r-- | src/mainboard/lenovo/x200/blc.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/src/mainboard/lenovo/x200/blc.c b/src/mainboard/lenovo/x200/blc.c new file mode 100644 index 0000000000..3d35460552 --- /dev/null +++ b/src/mainboard/lenovo/x200/blc.c @@ -0,0 +1,43 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2017 arthur@aheymans.xyz + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <stdint.h> +#include <commonlib/helpers.h> +#include <northbridge/intel/gm45/gm45.h> + +static const struct blc_pwm_t blc_entries[] = { + {"LTD121EWVB", 165}, + {"B121EW03 V6 ", 165}, + /* datasheets: between 100 and 20k, typical 200 */ + /* TESTED: works best at 400 */ + {"B121EW09 V3 ", 400}, + {"HV121WX4-120", 110}, /* Aftermarket AFFS lcd, works well at low pwm */ + {"LTN121AT03001", 110}, + {"LTN121AP03001", 750}, + /* TODO: untested panels found on thinkwiki */ + /* Generally CCFL runs best at lower PWM */ + /* {"B121EW09 V2 ", 450}, */ + /* {"N121IB-L05", 450}, */ + {"LP121WX3-TLC1", 400}, /* TESTED to work best at this value */ + /* {"LP121WX3-TLA1" 450}, */ + /* {"B121EW03 V3 " 110}, */ + /* {"LTN121AP02001" 110}, */ +}; + +int get_blc_values(const struct blc_pwm_t **entries) +{ + *entries = blc_entries; + return ARRAY_SIZE(blc_entries); +} |