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| author | Russell King (Oracle) <rmk+kernel@armlinux.org.uk> | 2023-01-11 10:54:21 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-06-21 14:35:40 +0200 |
| commit | ef1e9b624d99b9dc48c33bf5404e4f046de3d9c9 (patch) | |
| tree | 55ba5c9d5411c1102f06626524403510b95c1f13 /include | |
| parent | c0cd2d88006450be2d1ef6677d58fa141fcc4a41 (diff) | |
| download | linux-ef1e9b624d99b9dc48c33bf5404e4f046de3d9c9.tar.gz linux-ef1e9b624d99b9dc48c33bf5404e4f046de3d9c9.tar.bz2 linux-ef1e9b624d99b9dc48c33bf5404e4f046de3d9c9.zip | |
i2c: add fwnode APIs
[ Upstream commit 373c612d72461ddaea223592df31e62c934aae61 ]
Add fwnode APIs for finding and getting I2C adapters, which will be
used by the SFP code. These are passed the fwnode corresponding to
the adapter, and return the I2C adapter. It is the responsibility of
the caller to find the appropriate fwnode.
We keep the DT and ACPI interfaces, but where appropriate, recode them
to use the fwnode interfaces internally.
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Stable-dep-of: 3f858bbf04db ("i2c: acpi: Unbind mux adapters before delete")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/i2c.h | 24 |
1 files changed, 21 insertions, 3 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h index f7c49bbdb8a1..cfc59c3371cb 100644 --- a/include/linux/i2c.h +++ b/include/linux/i2c.h @@ -964,15 +964,33 @@ int i2c_handle_smbus_host_notify(struct i2c_adapter *adap, unsigned short addr); #endif /* I2C */ +/* must call put_device() when done with returned i2c_client device */ +struct i2c_client *i2c_find_device_by_fwnode(struct fwnode_handle *fwnode); + +/* must call put_device() when done with returned i2c_adapter device */ +struct i2c_adapter *i2c_find_adapter_by_fwnode(struct fwnode_handle *fwnode); + +/* must call i2c_put_adapter() when done with returned i2c_adapter device */ +struct i2c_adapter *i2c_get_adapter_by_fwnode(struct fwnode_handle *fwnode); + #if IS_ENABLED(CONFIG_OF) /* must call put_device() when done with returned i2c_client device */ -struct i2c_client *of_find_i2c_device_by_node(struct device_node *node); +static inline struct i2c_client *of_find_i2c_device_by_node(struct device_node *node) +{ + return i2c_find_device_by_fwnode(of_fwnode_handle(node)); +} /* must call put_device() when done with returned i2c_adapter device */ -struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node); +static inline struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node) +{ + return i2c_find_adapter_by_fwnode(of_fwnode_handle(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); +static inline struct i2c_adapter *of_get_i2c_adapter_by_node(struct device_node *node) +{ + return i2c_get_adapter_by_fwnode(of_fwnode_handle(node)); +} const struct of_device_id *i2c_of_match_device(const struct of_device_id *matches, |