From 0a9a432f8c3322b8a7d7d17d1005fd456a338aec Mon Sep 17 00:00:00 2001 From: David Huang Date: Wed, 15 Dec 2021 09:56:04 +0800 Subject: Juniper: pull sensor SPI_NSS to low in S5 There is a leakage after changing the BMI160 to ICM42608 We should pull the sensor SPI_NSS to low in S5 to prevent a leakage BUG=b:175362114 BRANCH=kukui TEST=Check power consumption godd with ICM40608 and BMI160 in S5. Signed-off-by: David Huang Change-Id: I6b3732bb542cc8098fcd07b1526e057ccf5e95ee Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3337960 Reviewed-by: Ting Shen Commit-Queue: Ting Shen (cherry picked from commit 6270c3db53d72da30e894ce3a2f269928af7bb32) Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3343567 Tested-by: Ting Shen --- board/jacuzzi/board.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/board/jacuzzi/board.c b/board/jacuzzi/board.c index 7c77d8ef3b..cd6c37f41d 100644 --- a/board/jacuzzi/board.c +++ b/board/jacuzzi/board.c @@ -274,6 +274,9 @@ static void board_spi_disable(void) /* Set pins to a state calming the sensor down. */ gpio_set_flags(GPIO_EC_SENSOR_SPI_CK, GPIO_OUT_LOW); gpio_set_level(GPIO_EC_SENSOR_SPI_CK, 0); + /* Pull SPI_NSS pin to low to prevent a leakage. */ + gpio_set_flags(GPIO_EC_SENSOR_SPI_NSS, GPIO_OUT_LOW); + gpio_set_level(GPIO_EC_SENSOR_SPI_NSS, 0); gpio_config_module(MODULE_SPI_MASTER, 0); /* Disable spi peripheral and clocks. */ -- cgit v1.2.1