diff options
| author | Eric Yilun Lin <yllin@chromium.org> | 2021-08-19 09:10:06 +0800 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2021-08-20 06:40:54 +0000 |
| commit | 1fb82e8268c4c31b21f910a0682d35a22ee5c45d (patch) | |
| tree | 4bbed7318db1444dc02c1d319a3ec6337351605d | |
| parent | d7e8744e60998be4e8e4df18337171be67b093ff (diff) | |
| download | chrome-ec-1fb82e8268c4c31b21f910a0682d35a22ee5c45d.tar.gz | |
spherion: enable USM
Ultrasonic Module(USM) is used for noise cancelling the buzzing
sound while charging. The sound is louder if we have
USB peripheral connected. We only enable this function in S0,
and disable it in S3 because the power consumption is significant.
BUG=b:185978753
TEST=make buildall
BRANCH=asurada
Change-Id: Ic2bfbf5a1364f5da6d776a1be56abb66934f9496
Signed-off-by: Eric Yilun Lin <yllin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3105905
Tested-by: Eric Yilun Lin <yllin@google.com>
Reviewed-by: Aseda Aboagye <aaboagye@chromium.org>
Commit-Queue: Eric Yilun Lin <yllin@google.com>
| -rw-r--r-- | board/spherion/board.c | 12 | ||||
| -rw-r--r-- | board/spherion/gpio.inc | 2 |
2 files changed, 13 insertions, 1 deletions
diff --git a/board/spherion/board.c b/board/spherion/board.c index 670eb91dd9..395791649f 100644 --- a/board/spherion/board.c +++ b/board/spherion/board.c @@ -112,3 +112,15 @@ void board_usb_mux_init(void) PS8743_USB_EQ_RX_12_8_DB); } DECLARE_HOOK(HOOK_INIT, board_usb_mux_init, HOOK_PRIO_INIT_I2C + 1); + +static void board_suspend(void) +{ + gpio_set_level(GPIO_EN_5V_USM, 0); +} +DECLARE_HOOK(HOOK_CHIPSET_SUSPEND, board_suspend, HOOK_PRIO_DEFAULT); + +static void board_resume(void) +{ + gpio_set_level(GPIO_EN_5V_USM, 1); +} +DECLARE_HOOK(HOOK_CHIPSET_RESUME, board_resume, HOOK_PRIO_DEFAULT); diff --git a/board/spherion/gpio.inc b/board/spherion/gpio.inc index a1b565b7d8..b618911e02 100644 --- a/board/spherion/gpio.inc +++ b/board/spherion/gpio.inc @@ -77,8 +77,8 @@ GPIO(EC_BATT_PRES_ODL, PIN(C, 0), GPIO_INPUT) GPIO(BC12_DET_EN, PIN(J, 5), GPIO_OUT_LOW) /* EN_USB_C0_BC12_DET */ GPIO(EN_EC_ID_ODL, PIN(H, 5), GPIO_ODR_LOW) GPIO(ENTERING_RW, PIN(C, 5), GPIO_OUT_LOW) /* EC_ENTERING_RW */ -GPIO(EC_USB_C0_MUX_RESET_L, PIN(D, 7), GPIO_OUT_HIGH) GPIO(EC_KB_BL_EN, PIN(G, 3), GPIO_OUT_LOW) /* Keyboard backlight enable */ +GPIO(EN_5V_USM, PIN(D, 7), GPIO_OUT_LOW) /* I2C pins - Alternate function below configures I2C module on these pins */ GPIO(I2C_A_SCL, PIN(B, 3), GPIO_INPUT) /* I2C_CHG_BATT_SCL */ |