From aabd986cbf69df00600e36da80e714f1d0128bc3 Mon Sep 17 00:00:00 2001 From: Stefan Adolfsson Date: Wed, 12 Jan 2022 15:26:10 +0100 Subject: scout: set microphone enable high per default Just trusting the pull-ups seems to not be enough. We are still seeing some missing microphones during acoustic testig. EE recommends to pull it high from the EC. BUG=b:214228751 BRANCH=puff TEST=Measure EC_MIC_OE with oscilloscope and sent before and after pictures to EE. Change-Id: I9d67b1841341679531ca415990b7b1fcec9ebc0c Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3382983 Reviewed-by: Joe Tessler Tested-by: Joe Tessler Commit-Queue: Stefan Adolfsson --- board/scout/gpio.inc | 1 + 1 file changed, 1 insertion(+) diff --git a/board/scout/gpio.inc b/board/scout/gpio.inc index fa3530a401..364d31c349 100644 --- a/board/scout/gpio.inc +++ b/board/scout/gpio.inc @@ -107,6 +107,7 @@ GPIO(EC_ENTERING_RW, PIN(E, 3), GPIO_OUT_LOW) GPIO(CCD_MODE_ODL, PIN(E, 5), GPIO_ODR_HIGH) GPIO(PACKET_MODE_EN, PIN(7, 5), GPIO_OUT_LOW) GPIO(EN_PP_MST_OD, PIN(9, 6), GPIO_OUT_HIGH) +GPIO(EC_MIC_OE, PIN(6, 0), GPIO_OUT_HIGH) /* HDMI/CEC */ GPIO(EN_PP5000_HDMI, PIN(5, 0), GPIO_OUT_LOW) -- cgit v1.2.1