diff options
| author | Kane Chen <kane_chen@pegatron.corp-partner.google.com> | 2019-11-08 15:52:29 +0800 |
|---|---|---|
| committer | Subrata Banik <subrata.banik@intel.com> | 2019-11-13 05:02:33 +0000 |
| commit | 799184397a06966403b9b2f3f5b53dba27eb272a (patch) | |
| tree | 9a6113226265e8c7317ddd0aa1dd55b6117567c3 | |
| parent | 87c52809b2b6208ba51fea3ec379fdb6bacf250f (diff) | |
mb/google/hatch/variants/helios: Fix leakage voltage problem on touchscreen
Set GPP_C4 default to low to fix leakage voltage problem on touchscreen during power on.
BUG=b:142368161
BRANCH=Master
TEST=emerge-hatch coreboot chromeos-ec chromeos-bootimage
Flash FW to DUT, and make sure touchscreen works.
Signed-off-by: Kane Chen <kane_chen@pegatron.corp-partner.google.com>
Change-Id: Ie9197192c9d6dfb30c10559990c6010b1b2d3a45
Reviewed-on: https://review.coreboot.org/c/coreboot/+/36670
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Shelley Chen <shchen@google.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
| -rw-r--r-- | src/mainboard/google/hatch/variants/helios/gpio.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mainboard/google/hatch/variants/helios/gpio.c b/src/mainboard/google/hatch/variants/helios/gpio.c index bebcf32662..85eb3fc156 100644 --- a/src/mainboard/google/hatch/variants/helios/gpio.c +++ b/src/mainboard/google/hatch/variants/helios/gpio.c @@ -33,6 +33,8 @@ static const struct pad_config gpio_table[] = { PAD_NC(GPP_B19, NONE), /* C1 : SMBDATA ==> NC */ PAD_NC(GPP_C1, NONE), + /* C4 : TOUCHSCREEN_DIS_L */ + PAD_CFG_GPO(GPP_C4, 0, DEEP), /* C6 : GPP_C6 ==> NC */ PAD_NC(GPP_C6, NONE), /* C7 : GPP_C7 ==> NC */ |