| /* SPDX-License-Identifier: GPL-2.0-only */ |
| |
| #include <commonlib/helpers.h> |
| #include <northbridge/intel/gm45/gm45.h> |
| |
| /* |
| * This contains a list of panel IDs and a known well working |
| * backlight PWM frequency. |
| */ |
| static const struct blc_pwm_t blc_entries[] = { |
| /* Vendor BIOS seems to intend to set PWM freq at 220Hz */ |
| /* T400 */ |
| {"B141EW04 V7 ", 110}, |
| {"B141EW05 V3 ", 450}, |
| {"LP141WX3-TLR1", 110}, |
| {"LP141WX5-TLP2", 450}, |
| {"LTN141AT12401", 450}, |
| {"LTN141W1-L05", 110}, |
| {"LTN141WD-L05", 110}, |
| /* T500 */ |
| {"LP154W02-TL06", 110}, |
| {"LTN154P2-L05", 110}, |
| {"LTN154P3-L02", 110}, |
| {"LTN154X3-L02", 110}, |
| {"LTN154U2-L05", 110}, |
| /* R500 */ |
| {"154WX5-TLB2", 220}, |
| }; |
| |
| int get_blc_values(const struct blc_pwm_t **entries) |
| { |
| *entries = blc_entries; |
| return ARRAY_SIZE(blc_entries); |
| } |