diff options
author | Lee Jones <lee.jones@linaro.org> | 2016-11-07 12:47:38 +0000 |
---|---|---|
committer | Wolfram Sang <wsa@the-dreams.de> | 2016-11-17 16:10:20 +0100 |
commit | 298d4de1ed003ad91cb49e068d744db0343cacb6 (patch) | |
tree | d77c73fe75a2b6b54acef019f08ef55d466c13cd | |
parent | cabcf4f6be658b2d4bea26dee89d08fdf67d6811 (diff) | |
download | linux-298d4de1ed003ad91cb49e068d744db0343cacb6.tar.bz2 |
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 '<vendor>,' string
removed. The latter is required due to the unruly naming conventions
used currently by I2C devices.
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
[Kieran: Fix static inline usage on !CONFIG_OF]
Tested-by: Kieran Bingham <kieran@bingham.xyz>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Kieran Bingham <kieran@bingham.xyz>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
-rw-r--r-- | drivers/i2c/i2c-core.c | 16 | ||||
-rw-r--r-- | include/linux/i2c.h | 12 |
2 files changed, 28 insertions, 0 deletions
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index c588a8504c99..2151d0b353b3 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -1799,6 +1799,22 @@ i2c_of_match_device_sysfs(const struct of_device_id *matches, return NULL; } +const struct of_device_id +*i2c_of_match_device(const struct of_device_id *matches, + struct i2c_client *client) +{ + const struct of_device_id *match; + + if (!(client && matches)) + return NULL; + + match = of_match_device(matches, &client->dev); + if (match) + return match; + + return i2c_of_match_device_sysfs(matches, client); +} +EXPORT_SYMBOL_GPL(i2c_of_match_device); #else static void of_i2c_register_devices(struct i2c_adapter *adap) { } #endif /* CONFIG_OF */ 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) |