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mb/google/brya/var/omniknight: Pull down USI_REPORT_EN in romstage

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Pull down USI_REPORT_EN(GPP_C6) in romstage to solve
an abnormal peek pull high before BL_EN.

Because power sequence no meet spec, pre #comment36,
it may have ghost touch.

BUG=b:326337003
TEST=FW_NAME=omnigul emerge-brya coreboot, measurement of HW and test
touch detection by evtest

Change-Id: I66f4a7915f135927fbc0a16254dece202dfc23a2
Signed-off-by: Jamie Chen <jamie_chen@compal.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/80769
Reviewed-by: Derek Huang <derekhuang@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
This commit is contained in:
Jamie Chen
2024-02-27 15:22:52 +08:00
committed by Felix Held
parent 6833e8c01a
commit 186907c4f7
1 changed files with 3 additions and 0 deletions
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3
src/mainboard/google/brya/variants/omnigul/gpio.c
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@@ -321,6 +321,9 @@ static const struct pad_config romstage_gpio_table[] = {
PAD_CFG_GPO(GPP_C0, 1, DEEP),
/* C1 : SMBDATA ==> USI_RST_L */
PAD_CFG_GPO(GPP_C1, 0, DEEP),
/* C6 : SML1CLK ==> USI_REPORT_EN */
PAD_CFG_GPO(GPP_C6, 0, DEEP),
// D1 : ISH_GP1 ==> FP_RST_ODL /
PAD_CFG_GPO(GPP_D1, 0, DEEP),
// D2 : ISH_GP2 ==> EN_FP_PWR /