[PATCH v2 13/22] i2c: core: Probe i2c master devices on demand
Tomeu Vizoso
tomeu.vizoso at collabora.com
Tue Jul 28 06:19:44 PDT 2015
When looking up an i2c master through its firmware node, probe it if it
hasn't already.
The goal is to reduce deferred probes to a minimum, as it makes it very
cumbersome to find out why a device failed to probe, and can introduce
very big delays in when a critical device is probed.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso at collabora.com>
---
Changes in v2: None
drivers/i2c/i2c-core.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index e6d4935161e4..5520b413e3db 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1353,6 +1353,8 @@ struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node)
{
struct device *dev;
+ fwnode_ensure_device(&node->fwnode);
+
dev = bus_find_device(&i2c_bus_type, NULL, node,
of_dev_node_match);
if (!dev)
--
2.4.3
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