Port of_find_i2c_device_by_node() from Linux in order to allow looking
i2c_client up by corresponding DT node. Useful for interacting with
identical raw/driverless I2C devices that are not found on the same
bus between board variants.
Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
include/i2c/i2c.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/i2c/i2c.h b/include/i2c/i2c.h
index a694e4ab2..7eaa97dde 100644
--- a/include/i2c/i2c.h
+++ b/include/i2c/i2c.h
@@ -281,6 +281,14 @@ static inline int i2c_register_board_info(int busnum,
extern int i2c_add_numbered_adapter(struct i2c_adapter *adapter);
struct i2c_adapter *i2c_get_adapter(int busnum);
struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node);
+static inline struct i2c_client *
+of_find_i2c_device_by_node(struct device_node *node)
+{
+ struct device_d *dev = of_find_device_by_node(node);
+
+ return dev ? to_i2c_client(dev) : NULL;
+}
+
void i2c_parse_fw_timings(struct device_d *dev, struct i2c_timings *t, bool use_defaults);
--
2.21.0
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