diff options
Diffstat (limited to 'drivers/i2c/i2c-core-of.c')
| -rw-r--r-- | drivers/i2c/i2c-core-of.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/i2c/i2c-core-of.c b/drivers/i2c/i2c-core-of.c index 6cb7ad608bcd..0f01cdba9d2c 100644 --- a/drivers/i2c/i2c-core-of.c +++ b/drivers/i2c/i2c-core-of.c @@ -121,6 +121,17 @@ static int of_dev_node_match(struct device *dev, void *data) return dev->of_node == data; } +static int of_dev_or_parent_node_match(struct device *dev, void *data) +{ + if (dev->of_node == data) + return 1; + + if (dev->parent) + return dev->parent->of_node == data; + + return 0; +} + /* must call put_device() when done with returned i2c_client device */ struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) { @@ -145,7 +156,8 @@ struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node) struct device *dev; struct i2c_adapter *adapter; - dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match); + dev = bus_find_device(&i2c_bus_type, NULL, node, + of_dev_or_parent_node_match); if (!dev) return NULL; |