From 298d4de1ed003ad91cb49e068d744db0343cacb6 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Mon, 7 Nov 2016 12:47:38 +0000 Subject: i2c: Match using traditional OF methods, then by vendor-less compatible strings This function provides a single call for all I2C devices which need to match firstly using traditional OF means i.e by of_node, then if that fails we attempt to match using the supplied I2C client name with a list of supplied compatible strings with the ',' string removed. The latter is required due to the unruly naming conventions used currently by I2C devices. Acked-by: Grant Likely Signed-off-by: Lee Jones [Kieran: Fix static inline usage on !CONFIG_OF] Tested-by: Kieran Bingham Reviewed-by: Javier Martinez Canillas Tested-by: Javier Martinez Canillas Signed-off-by: Kieran Bingham Signed-off-by: Wolfram Sang --- include/linux/i2c.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'include') diff --git a/include/linux/i2c.h b/include/linux/i2c.h index 6422eef428c4..c0a4a12815aa 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -774,6 +774,10 @@ extern struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node) /* must call i2c_put_adapter() when done with returned i2c_adapter device */ struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node *node); +extern const struct of_device_id +*i2c_of_match_device(const struct of_device_id *matches, + struct i2c_client *client); + #else static inline struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) @@ -790,6 +794,14 @@ static inline struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node { return NULL; } + +static inline const struct of_device_id +*i2c_of_match_device(const struct of_device_id *matches, + struct i2c_client *client) +{ + return NULL; +} + #endif /* CONFIG_OF */ #if IS_ENABLED(CONFIG_ACPI) -- cgit v1.2.3