From 7eb832b1dc813df4d8ea16617da28ede14c5dacd Mon Sep 17 00:00:00 2001 From: Cong Yang Date: Thu, 14 Aug 2025 13:56:29 +0800 Subject: [PATCH] mb/google/skywalker: Configure GPIO GPIO_AP_EDP_BKLTEN as output Config GPIO GPIO_AP_EDP_BKLTEN as output low. When skipping firmware display, it can prevent leakage to GPIO_AP_EDP_BKLTEN and cause it to be pulled up to a 0.6 V step. BUG=b:438353560 BRANCH=none TEST=skip fw display check GPIO_AP_EDP_BKLTEN Waveform Change-Id: Icea1e035d62c89ea26bc58afa1d64ab8a448cc04 Signed-off-by: Cong Yang Reviewed-on: https://review.coreboot.org/c/coreboot/+/88772 Reviewed-by: Yu-Ping Wu Tested-by: build bot (Jenkins) Reviewed-by: Yidi Lin Reviewed-by: Haikun Zhou --- src/mainboard/google/skywalker/chromeos.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/mainboard/google/skywalker/chromeos.c b/src/mainboard/google/skywalker/chromeos.c index 2bf47ed797..d5a04371df 100644 --- a/src/mainboard/google/skywalker/chromeos.c +++ b/src/mainboard/google/skywalker/chromeos.c @@ -33,6 +33,7 @@ void setup_chromeos_gpios(void) gpio_output(GPIO_EN_PWR_FP, 0); gpio_output(GPIO_FP_RST_1V8_S3_L, 0); gpio_output(GPIO_EN_SPKR, 0); + gpio_output(GPIO_AP_EDP_BKLTEN, 0); } void fill_lb_gpios(struct lb_gpios *gpios)