diff options
Diffstat (limited to 'board/cr50/servo_state.c')
| -rw-r--r-- | board/cr50/servo_state.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/board/cr50/servo_state.c b/board/cr50/servo_state.c index f6ded01dd0..5c05d2bb77 100644 --- a/board/cr50/servo_state.c +++ b/board/cr50/servo_state.c @@ -146,6 +146,18 @@ static void servo_detect(void) if (state == DEVICE_STATE_IGNORED) return; + /* + * During EC-CR50 communication, do not change servo state because + * GPIO_DETECT_SERVO (DIOB5) is not available. Return now, and + * let it try to detect in the next second. + * + * Note: Though servo is not detectable, we do not want to change + * servo_state as UNDETECTABLE, otherwise "servo_is_connected()" + * might return false while servo is connected. + */ + if (ec_comm_is_uart_in_packet_mode(UART_EC)) + return; + /* If we're driving EC UART TX, we can't detect servo */ if (!servo_detectable()) { /* We're driving one port; might as well drive them all */ |