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authorSeunghwan Kim <sh_.kim@samsung.corp-partner.google.com>2020-10-26 17:09:01 +0900
committerPatrick Georgi <pgeorgi@google.com>2020-10-28 10:43:25 +0000
commit71b546773daa57682c480196f4ed167dd060b54c (patch)
treebb6753a0488f683e9709170bbf7b34aa210b2b08 /src
parente828554ee046c3f5b1acdcef46a5e2724a42048a (diff)
mb/google/nightfury: Set internal pull-down for GPP_D19
Add internal pull-down for GPP_D19 to improve DMIC noise issue on nightfury. BUG=b:171669255 BRANCH=firmware-hatch-12672.B TEST=Built and checked GPP_D19 voltage after booting Change-Id: Ie63f260be3d6a55f91908db59312b3b0a8af98f4 Signed-off-by: Seunghwan Kim <sh_.kim@samsung.corp-partner.google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/46816 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Bob Moragues <moragues@google.com> Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src')
-rw-r--r--src/mainboard/google/hatch/variants/nightfury/gpio.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/mainboard/google/hatch/variants/nightfury/gpio.c b/src/mainboard/google/hatch/variants/nightfury/gpio.c
index 951723ebeb..eb6217ded9 100644
--- a/src/mainboard/google/hatch/variants/nightfury/gpio.c
+++ b/src/mainboard/google/hatch/variants/nightfury/gpio.c
@@ -37,6 +37,8 @@ static const struct pad_config gpio_table[] = {
/* D16 : TOUCHSCREEN_INT_L */
PAD_CFG_GPI_APIC(GPP_D16, NONE, PLTRST, LEVEL, INVERT),
+ /* D19 : DMIC_CLK_0_SNDW4_CLK */
+ PAD_CFG_NF(GPP_D19, DN_20K, DEEP, NF1),
/* E4 : M2_SSD_PE_WAKE_ODL ==> NC */
PAD_NC(GPP_E4, NONE),