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| author | Zhuohao Lee <zhuohao@chromium.org> | 2019-01-20 21:59:48 +0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2019-02-04 12:42:10 -0800 |
| commit | c2ebb5e88be7493a07a78533a28a2f1d51be719c (patch) | |
| tree | 0de20405dec3fec1a3cbbcb6849f55d8531ac058 /board/rammus | |
| parent | e1ce8ba84e9cc105f8394b3bdf41543fb72533df (diff) | |
| download | chrome-ec-c2ebb5e88be7493a07a78533a28a2f1d51be719c.tar.gz | |
rammus: turn the USB type-a charging off by default in suspend mode
This patch turns the USB type-a charging off by default in suspend mode.
If the DUT power on with connecting a USB device, the OS must send an
event to clear inhibit_charging_in_suspend. Otherwise, the USB device
will lost the power in suspend mode, and the wakeup event won't be
generated if the device is a wakeup source (eg. USB keyboard or mouse).
BUG=b:121438672
BRANCH=firmware-rammus-11275
CQ-DEPEND=CL:1423758
TEST=Power on DUT without connecting USB, then suspend the DUT.
Verfied the USB type-a charging off.
Change-Id: I39a0f85d7033b798a80e80cc302a2c72cebae8d6
Signed-off-by: Zhuohao Lee <zhuohao@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1424042
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Diffstat (limited to 'board/rammus')
| -rw-r--r-- | board/rammus/board.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/board/rammus/board.c b/board/rammus/board.c index 46afccbb2f..d4ec8ea13a 100644 --- a/board/rammus/board.c +++ b/board/rammus/board.c @@ -465,6 +465,19 @@ static void board_init(void) } DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT); +static void usb_charge_mode_init(void) +{ + /* + * By default, turn the charging off when system suspends. + * If system power on with connecting a USB device, + * the OS must send an event to EC to clear the + * inhibit_charging_in_suspend. + */ + usb_charge_set_mode(0, USB_CHARGE_MODE_CDP, + USB_DISALLOW_SUSPEND_CHARGE); +} +DECLARE_HOOK(HOOK_INIT, usb_charge_mode_init, HOOK_PRIO_DEFAULT + 1); + /** * Buffer the AC present GPIO to the PCH. */ |