From badbcde5425b587fe23f8bd6ce02c740913fdd1d Mon Sep 17 00:00:00 2001 From: Yu-Ping Wu Date: Wed, 10 Jul 2019 15:55:24 +0800 Subject: [PATCH] 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 Reviewed-on: https://review.coreboot.org/c/coreboot/+/34192 Reviewed-by: You-Cheng Syu Reviewed-by: Hung-Te Lin Tested-by: build bot (Jenkins) --- src/mainboard/google/kukui/boardid.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/src/mainboard/google/kukui/boardid.c b/src/mainboard/google/kukui/boardid.c index ad066666cb..ad7fb364df 100644 --- a/src/mainboard/google/kukui/boardid.c +++ b/src/mainboard/google/kukui/boardid.c @@ -51,15 +51,15 @@ static const int lcm_voltages[ADC_LEVELS] = { /* ID : Voltage (unit: uV) */ /* 0 : */ 0, /* 1 : */ 283000, - /* 2 : */ 440000, + /* 2 : */ 394000, /* 3 : */ 503000, /* 4 : */ 608000, - /* 5 : */ 703000, - /* 6 : */ 830000, - /* 7 : */ 865000, - /* 8 : */ 953000, - /* 9 : */ 1079000, - /* 10 : */ 1128000, + /* 5 : */ 712000, + /* 6 : */ 823000, + /* 7 : */ 937000, + /* 8 : */ 1046000, + /* 9 : */ 1155000, + /* 10 : */ 1277000, /* 11 : */ 1434000, };