diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 8393468fa1ee..d21669976ccf 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -1668,18 +1668,21 @@ static void rproc_auto_boot_callback(const struct firmware *fw, void *context) release_firmware(fw); } +static void rproc_attach_work(struct work_struct *work) +{ + struct rproc *rproc = container_of(work, struct rproc, attach_work); + + rproc_boot(rproc); +} + static int rproc_trigger_auto_boot(struct rproc *rproc) { int ret; - /* - * Since the remote processor is in a detached state, it has already - * been booted by another entity. As such there is no point in waiting - * for a firmware image to be loaded, we can simply initiate the process - * of attaching to it immediately. - */ - if (rproc->state == RPROC_DETACHED) - return rproc_boot(rproc); + if (rproc->state == RPROC_DETACHED) { + schedule_work(&rproc->attach_work); + return 0; + } /* * We're initiating an asynchronous firmware loading, so we can @@ -2520,6 +2523,7 @@ struct rproc *rproc_alloc(struct device *dev, const char *name, INIT_LIST_HEAD(&rproc->dump_segments); INIT_WORK(&rproc->crash_handler, rproc_crash_handler_work); + INIT_WORK(&rproc->attach_work, rproc_attach_work); rproc->state = RPROC_OFFLINE; diff --git a/include/linux/remoteproc.h b/include/linux/remoteproc.h index 7c1546d48008..f1d14d075bf3 100644 --- a/include/linux/remoteproc.h +++ b/include/linux/remoteproc.h @@ -259,6 +259,7 @@ enum rproc_features { * @subdevs: list of subdevices, to following the running state * @notifyids: idr for dynamically assigning rproc-wide unique notify ids * @index: index of this rproc device + * @attach_work: workqueue for attaching rproc * @crash_handler: workqueue for handling a crash * @crash_cnt: crash counter * @recovery_disabled: flag that state if recovery was disabled @@ -301,6 +302,7 @@ struct rproc { struct list_head subdevs; struct idr notifyids; int index; + struct work_struct attach_work; struct work_struct crash_handler; unsigned int crash_cnt; bool recovery_disabled;