diff options
Diffstat (limited to 'drivers/platform')
| -rw-r--r-- | drivers/platform/chrome/cros_ec_proto.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/platform/chrome/cros_ec_proto.c b/drivers/platform/chrome/cros_ec_proto.c index 11a2db7cd0f7..b6b583b5868a 100644 --- a/drivers/platform/chrome/cros_ec_proto.c +++ b/drivers/platform/chrome/cros_ec_proto.c @@ -469,14 +469,26 @@ int cros_ec_query_all(struct cros_ec_device *ec_dev) &ver_mask); ec_dev->host_sleep_v1 = (ret >= 0 && (ver_mask & EC_VER_MASK(1))); - /* - * Get host event wake mask, assume all events are wake events - * if unavailable. - */ + /* Get host event wake mask. */ ret = cros_ec_get_host_event_wake_mask(ec_dev, proto_msg, &ec_dev->host_event_wake_mask); - if (ret < 0) - ec_dev->host_event_wake_mask = U32_MAX; + if (ret < 0) { + /* + * If the EC doesn't support EC_CMD_HOST_EVENT_GET_WAKE_MASK, + * use a reasonable default. Note that we ignore various + * battery, AC status, and power-state events, because (a) + * those can be quite common (e.g., when sitting at full + * charge, on AC) and (b) these are not actionable wake events; + * if anything, we'd like to continue suspending (to save + * power), not wake up. + */ + ec_dev->host_event_wake_mask = U32_MAX & + ~(BIT(EC_HOST_EVENT_AC_DISCONNECTED) | + BIT(EC_HOST_EVENT_BATTERY_LOW) | + BIT(EC_HOST_EVENT_BATTERY_CRITICAL) | + BIT(EC_HOST_EVENT_PD_MCU) | + BIT(EC_HOST_EVENT_BATTERY_STATUS)); + } ret = 0; |