diff options
| -rw-r--r-- | drivers/soundwire/bus.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c index 354d3f89366f..8b7a680f388e 100644 --- a/drivers/soundwire/bus.c +++ b/drivers/soundwire/bus.c @@ -1838,6 +1838,18 @@ int sdw_handle_slave_status(struct sdw_bus *bus, __func__, slave->dev_num); complete(&slave->initialization_complete); + + /* + * If the manager became pm_runtime active, the peripherals will be + * restarted and attach, but their pm_runtime status may remain + * suspended. If the 'update_slave_status' callback initiates + * any sort of deferred processing, this processing would not be + * cancelled on pm_runtime suspend. + * To avoid such zombie states, we queue a request to resume. + * This would be a no-op in case the peripheral was being resumed + * by e.g. the ALSA/ASoC framework. + */ + pm_request_resume(&slave->dev); } } |