diff options
Diffstat (limited to 'drivers/remoteproc/remoteproc_core.c')
| -rw-r--r-- | drivers/remoteproc/remoteproc_core.c | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 564061dcc019..eab14b414bf0 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -794,7 +794,7 @@ static void rproc_remove_subdevices(struct rproc *rproc) { struct rproc_subdev *subdev; - list_for_each_entry(subdev, &rproc->subdevs, node) + list_for_each_entry_reverse(subdev, &rproc->subdevs, node) subdev->remove(subdev); } @@ -1119,7 +1119,7 @@ static void rproc_crash_handler_work(struct work_struct *work) } /** - * __rproc_boot() - boot a remote processor + * rproc_boot() - boot a remote processor * @rproc: handle of a remote processor * * Boot a remote processor (i.e. load its firmware, power it on, ...). @@ -1129,7 +1129,7 @@ static void rproc_crash_handler_work(struct work_struct *work) * * Returns 0 on success, and an appropriate error value otherwise. */ -static int __rproc_boot(struct rproc *rproc) +int rproc_boot(struct rproc *rproc) { const struct firmware *firmware_p; struct device *dev; @@ -1180,15 +1180,6 @@ unlock_mutex: mutex_unlock(&rproc->lock); return ret; } - -/** - * rproc_boot() - boot a remote processor - * @rproc: handle of a remote processor - */ -int rproc_boot(struct rproc *rproc) -{ - return __rproc_boot(rproc); -} EXPORT_SYMBOL(rproc_boot); /** @@ -1369,7 +1360,7 @@ static void rproc_type_release(struct device *dev) kfree(rproc); } -static struct device_type rproc_type = { +static const struct device_type rproc_type = { .name = "remoteproc", .release = rproc_type_release, }; @@ -1440,6 +1431,7 @@ struct rproc *rproc_alloc(struct device *dev, const char *name, rproc->dev.parent = dev; rproc->dev.type = &rproc_type; rproc->dev.class = &rproc_class; + rproc->dev.driver_data = rproc; /* Assign a unique device index and name */ rproc->index = ida_simple_get(&rproc_dev_index, 0, 0, GFP_KERNEL); @@ -1579,6 +1571,23 @@ void rproc_remove_subdev(struct rproc *rproc, struct rproc_subdev *subdev) EXPORT_SYMBOL(rproc_remove_subdev); /** + * rproc_get_by_child() - acquire rproc handle of @dev's ancestor + * @dev: child device to find ancestor of + * + * Returns the ancestor rproc instance, or NULL if not found. + */ +struct rproc *rproc_get_by_child(struct device *dev) +{ + for (dev = dev->parent; dev; dev = dev->parent) { + if (dev->type == &rproc_type) + return dev->driver_data; + } + + return NULL; +} +EXPORT_SYMBOL(rproc_get_by_child); + +/** * rproc_report_crash() - rproc crash reporter function * @rproc: remote processor * @type: crash type |