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Subject[PATCH v5 12/23] i2c: core: Probe i2c adapters and devices on demand
Date
When looking up an i2c adapter or device through its OF 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@collabora.com>
---

Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

drivers/i2c/i2c-core.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 5f89f1e3c2f2..02da3acbbd35 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -1413,6 +1413,8 @@ struct i2c_client *of_find_i2c_device_by_node(struct device_node *node)
struct device *dev;
struct i2c_client *client;

+ of_device_probe(node);
+
dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match);
if (!dev)
return NULL;
@@ -1431,6 +1433,8 @@ struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node)
struct device *dev;
struct i2c_adapter *adapter;

+ of_device_probe(node);
+
dev = bus_find_device(&i2c_bus_type, NULL, node, of_dev_node_match);
if (!dev)
return NULL;
--
2.4.3


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