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i2c: Export i2c_match_id() for direct use by device drivers
When there was no other way to match a I2C device to driver i2c_match_id() was exclusively used. However, now there are other types of tables which are commonly supplied, matching on an i2c_device_id table is used less frequently. Instead of _always_ calling i2c_match_id() from within the framework, we only need to do so from drivers which have no other way of matching. This patch makes i2c_match_id() available to the aforementioned device drivers. Acked-by: Grant Likely <grant.likely@linaro.org> Signed-off-by: Lee Jones <lee.jones@linaro.org> 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>
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@ -676,7 +676,7 @@ static inline int i2c_acpi_install_space_handler(struct i2c_adapter *adapter)
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/* ------------------------------------------------------------------------- */
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static const struct i2c_device_id *i2c_match_id(const struct i2c_device_id *id,
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const struct i2c_device_id *i2c_match_id(const struct i2c_device_id *id,
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const struct i2c_client *client)
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{
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if (!(id && client))
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@ -689,6 +689,7 @@ static const struct i2c_device_id *i2c_match_id(const struct i2c_device_id *id,
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}
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return NULL;
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}
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EXPORT_SYMBOL_GPL(i2c_match_id);
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static int i2c_device_match(struct device *dev, struct device_driver *drv)
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{
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@ -243,6 +243,8 @@ struct i2c_client {
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extern struct i2c_client *i2c_verify_client(struct device *dev);
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extern struct i2c_adapter *i2c_verify_adapter(struct device *dev);
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extern const struct i2c_device_id *i2c_match_id(const struct i2c_device_id *id,
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const struct i2c_client *client);
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static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj)
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{
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