GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

google/kukui: Adjust LCM ID voltages 

Currently some of the LCM ID voltage gaps are below 100mV. For example, the
voltage difference between ID 2 and 3 is 503-440=63mV. To reduce the risk of
misrecognition from the hardware level, the voltages are adjusted so that all
the voltage gaps are larger than 100mV. The RD2 resistor values are also
updated.

BUG=b:136987483
TEST=emerge-kukui coreboot

Change-Id: Ib5c1f927fb54d8c9579f030e42eeec5a27daaceb
Signed-off-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34192
Reviewed-by: You-Cheng Syu <youcheng@google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Yu-Ping Wu 2019-07-10 15:55:24 +08:00 committed by Martin Roth
parent e13a65c5ff
commit badbcde542
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/mainboard/google/kukui/boardid.c
View File

@ -51,15 +51,15 @@ static const int lcm_voltages[ADC_LEVELS] = {
/* ID : Voltage (unit: uV) */ /* ID : Voltage (unit: uV) */
/* 0 : */ 0, /* 0 : */ 0,
/* 1 : */ 283000, /* 1 : */ 283000,
/* 2 : */ 440000, /* 2 : */ 394000,
/* 3 : */ 503000, /* 3 : */ 503000,
/* 4 : */ 608000, /* 4 : */ 608000,
/* 5 : */ 703000, /* 5 : */ 712000,
/* 6 : */ 830000, /* 6 : */ 823000,
/* 7 : */ 865000, /* 7 : */ 937000,
/* 8 : */ 953000, /* 8 : */ 1046000,
/* 9 : */ 1079000, /* 9 : */ 1155000,
/* 10 : */ 1128000, /* 10 : */ 1277000,
/* 11 : */ 1434000, /* 11 : */ 1434000,
}; };