diff options
Diffstat (limited to 'drivers/of')
| -rw-r--r-- | drivers/of/property.c | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/drivers/of/property.c b/drivers/of/property.c index 6f6e1d9644cf..69a6ec8711bd 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1018,10 +1018,10 @@ static bool of_is_ancestor_of(struct device_node *test_ancestor, * - -EINVAL if the supplier link is invalid and should not be created * - -ENODEV if there is no device that corresponds to the supplier phandle */ -static int of_link_to_phandle(struct device *dev, struct device_node *sup_np) +static int of_link_to_phandle(struct device *dev, struct device_node *sup_np, + u32 dl_flags) { struct device *sup_dev; - u32 dl_flags = DL_FLAG_AUTOPROBE_CONSUMER; int ret = 0; struct device_node *tmp_np = sup_np; @@ -1181,13 +1181,20 @@ static int of_link_property(struct device *dev, struct device_node *con_np, unsigned int i = 0; bool matched = false; int ret = 0; + u32 dl_flags; + + if (dev->of_node == con_np) + dl_flags = DL_FLAG_AUTOPROBE_CONSUMER; + else + dl_flags = DL_FLAG_SYNC_STATE_ONLY; /* Do not stop at first failed link, link all available suppliers. */ while (!matched && s->parse_prop) { while ((phandle = s->parse_prop(con_np, prop_name, i))) { matched = true; i++; - if (of_link_to_phandle(dev, phandle) == -EAGAIN) + if (of_link_to_phandle(dev, phandle, dl_flags) + == -EAGAIN) ret = -EAGAIN; of_node_put(phandle); } @@ -1205,10 +1212,10 @@ static int of_link_to_suppliers(struct device *dev, for_each_property_of_node(con_np, p) if (of_link_property(dev, con_np, p->name)) - ret = -EAGAIN; + ret = -ENODEV; for_each_child_of_node(con_np, child) - if (of_link_to_suppliers(dev, child)) + if (of_link_to_suppliers(dev, child) && !ret) ret = -EAGAIN; return ret; |