Commit c807da53 authored by Luca Ceresoli's avatar Luca Ceresoli Committed by Wolfram Sang

i2c: remove unneeded 'extern' from function declatations

According to coding-style.rst, extern should not be specified for
exported functions.
Signed-off-by: default avatarLuca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent d1eef1c6
......@@ -50,7 +50,7 @@ struct property_entry;
* transmit an arbitrary number of messages without interruption.
* @count must be be less than 64k since msg.len is u16.
*/
extern int i2c_transfer_buffer_flags(const struct i2c_client *client,
int i2c_transfer_buffer_flags(const struct i2c_client *client,
char *buf, int count, u16 flags);
/**
......@@ -115,11 +115,9 @@ static inline int i2c_master_send_dmasafe(const struct i2c_client *client,
/* Transfer num messages.
*/
extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
int num);
int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num);
/* Unlocked flavor */
extern int __i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs,
int num);
int __i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num);
/* This is the very generalized SMBus access routine. You probably do not
want to use this, though; one of the functions below may be much easier,
......@@ -138,15 +136,13 @@ s32 __i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
/* Now follow the 'nice' access routines. These also document the calling
conventions of i2c_smbus_xfer. */
extern s32 i2c_smbus_read_byte(const struct i2c_client *client);
extern s32 i2c_smbus_write_byte(const struct i2c_client *client, u8 value);
extern s32 i2c_smbus_read_byte_data(const struct i2c_client *client,
u8 command);
extern s32 i2c_smbus_write_byte_data(const struct i2c_client *client,
s32 i2c_smbus_read_byte(const struct i2c_client *client);
s32 i2c_smbus_write_byte(const struct i2c_client *client, u8 value);
s32 i2c_smbus_read_byte_data(const struct i2c_client *client, u8 command);
s32 i2c_smbus_write_byte_data(const struct i2c_client *client,
u8 command, u8 value);
extern s32 i2c_smbus_read_word_data(const struct i2c_client *client,
u8 command);
extern s32 i2c_smbus_write_word_data(const struct i2c_client *client,
s32 i2c_smbus_read_word_data(const struct i2c_client *client, u8 command);
s32 i2c_smbus_write_word_data(const struct i2c_client *client,
u8 command, u16 value);
static inline s32
......@@ -165,19 +161,18 @@ i2c_smbus_write_word_swapped(const struct i2c_client *client,
}
/* Returns the number of read bytes */
extern s32 i2c_smbus_read_block_data(const struct i2c_client *client,
s32 i2c_smbus_read_block_data(const struct i2c_client *client,
u8 command, u8 *values);
extern s32 i2c_smbus_write_block_data(const struct i2c_client *client,
s32 i2c_smbus_write_block_data(const struct i2c_client *client,
u8 command, u8 length, const u8 *values);
/* Returns the number of read bytes */
extern s32 i2c_smbus_read_i2c_block_data(const struct i2c_client *client,
s32 i2c_smbus_read_i2c_block_data(const struct i2c_client *client,
u8 command, u8 length, u8 *values);
extern s32 i2c_smbus_write_i2c_block_data(const struct i2c_client *client,
s32 i2c_smbus_write_i2c_block_data(const struct i2c_client *client,
u8 command, u8 length, const u8 *values);
s32 i2c_smbus_read_i2c_block_data_or_emulated(const struct i2c_client *client,
u8 command, u8 length,
const u8 *values);
extern s32
i2c_smbus_read_i2c_block_data_or_emulated(const struct i2c_client *client,
u8 command, u8 length, u8 *values);
u8 *values);
int i2c_get_device_id(const struct i2c_client *client,
struct i2c_device_identity *id);
#endif /* I2C */
......@@ -337,9 +332,9 @@ struct i2c_client {
};
#define to_i2c_client(d) container_of(d, struct i2c_client, dev)
extern struct i2c_client *i2c_verify_client(struct device *dev);
extern struct i2c_adapter *i2c_verify_adapter(struct device *dev);
extern const struct i2c_device_id *i2c_match_id(const struct i2c_device_id *id,
struct i2c_client *i2c_verify_client(struct device *dev);
struct i2c_adapter *i2c_verify_adapter(struct device *dev);
const struct i2c_device_id *i2c_match_id(const struct i2c_device_id *id,
const struct i2c_client *client);
static inline struct i2c_client *kobj_to_i2c_client(struct kobject *kobj)
......@@ -369,9 +364,9 @@ enum i2c_slave_event {
I2C_SLAVE_STOP,
};
extern int i2c_slave_register(struct i2c_client *client, i2c_slave_cb_t slave_cb);
extern int i2c_slave_unregister(struct i2c_client *client);
extern bool i2c_detect_slave_mode(struct device *dev);
int i2c_slave_register(struct i2c_client *client, i2c_slave_cb_t slave_cb);
int i2c_slave_unregister(struct i2c_client *client);
bool i2c_detect_slave_mode(struct device *dev);
static inline int i2c_slave_event(struct i2c_client *client,
enum i2c_slave_event event, u8 *val)
......@@ -440,10 +435,10 @@ struct i2c_board_info {
* with integrated I2C, a config eeprom, sensors, and a codec that's
* used in conjunction with the primary hardware.
*/
extern struct i2c_client *
struct i2c_client *
i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info);
extern struct i2c_client *
struct i2c_client *
i2c_new_client_device(struct i2c_adapter *adap, struct i2c_board_info const *info);
/* If you don't know the exact address of an I2C device, use this variant
......@@ -452,33 +447,33 @@ i2c_new_client_device(struct i2c_adapter *adap, struct i2c_board_info const *inf
* it must return 1 on successful probe, 0 otherwise. If it is not provided,
* a default probing method is used.
*/
extern struct i2c_client *
struct i2c_client *
i2c_new_scanned_device(struct i2c_adapter *adap,
struct i2c_board_info *info,
unsigned short const *addr_list,
int (*probe)(struct i2c_adapter *adap, unsigned short addr));
extern struct i2c_client *
struct i2c_client *
i2c_new_probed_device(struct i2c_adapter *adap,
struct i2c_board_info *info,
unsigned short const *addr_list,
int (*probe)(struct i2c_adapter *adap, unsigned short addr));
/* Common custom probe functions */
extern int i2c_probe_func_quick_read(struct i2c_adapter *adap, unsigned short addr);
int i2c_probe_func_quick_read(struct i2c_adapter *adap, unsigned short addr);
extern struct i2c_client *
struct i2c_client *
i2c_new_dummy_device(struct i2c_adapter *adapter, u16 address);
extern struct i2c_client *
struct i2c_client *
devm_i2c_new_dummy_device(struct device *dev, struct i2c_adapter *adap, u16 address);
extern struct i2c_client *
struct i2c_client *
i2c_new_ancillary_device(struct i2c_client *client,
const char *name,
u16 default_addr);
extern void i2c_unregister_device(struct i2c_client *client);
void i2c_unregister_device(struct i2c_client *client);
#endif /* I2C */
/* Mainboard arch_initcall() code should register all its I2C devices.
......@@ -486,7 +481,7 @@ extern void i2c_unregister_device(struct i2c_client *client);
* Modules for add-on boards must use other calls.
*/
#ifdef CONFIG_I2C_BOARDINFO
extern int
int
i2c_register_board_info(int busnum, struct i2c_board_info const *info,
unsigned n);
#else
......@@ -840,12 +835,12 @@ static inline void i2c_mark_adapter_resumed(struct i2c_adapter *adap)
/* administration...
*/
#if IS_ENABLED(CONFIG_I2C)
extern int i2c_add_adapter(struct i2c_adapter *adap);
extern void i2c_del_adapter(struct i2c_adapter *adap);
extern int i2c_add_numbered_adapter(struct i2c_adapter *adap);
int i2c_add_adapter(struct i2c_adapter *adap);
void i2c_del_adapter(struct i2c_adapter *adap);
int i2c_add_numbered_adapter(struct i2c_adapter *adap);
extern int i2c_register_driver(struct module *owner, struct i2c_driver *driver);
extern void i2c_del_driver(struct i2c_driver *driver);
int i2c_register_driver(struct module *owner, struct i2c_driver *driver);
void i2c_del_driver(struct i2c_driver *driver);
/* use a define to avoid include chaining to get THIS_MODULE */
#define i2c_add_driver(driver) \
......@@ -858,12 +853,12 @@ static inline bool i2c_client_has_driver(struct i2c_client *client)
/* call the i2c_client->command() of all attached clients with
* the given arguments */
extern void i2c_clients_command(struct i2c_adapter *adap,
void i2c_clients_command(struct i2c_adapter *adap,
unsigned int cmd, void *arg);
extern struct i2c_adapter *i2c_get_adapter(int nr);
extern void i2c_put_adapter(struct i2c_adapter *adap);
extern unsigned int i2c_adapter_depth(struct i2c_adapter *adapter);
struct i2c_adapter *i2c_get_adapter(int nr);
void i2c_put_adapter(struct i2c_adapter *adap);
unsigned int i2c_adapter_depth(struct i2c_adapter *adapter);
void i2c_parse_fw_timings(struct device *dev, struct i2c_timings *t, bool use_defaults);
......@@ -935,15 +930,15 @@ int i2c_handle_smbus_host_notify(struct i2c_adapter *adap, unsigned short addr);
#if IS_ENABLED(CONFIG_OF)
/* must call put_device() when done with returned i2c_client device */
extern struct i2c_client *of_find_i2c_device_by_node(struct device_node *node);
struct i2c_client *of_find_i2c_device_by_node(struct device_node *node);
/* must call put_device() when done with returned i2c_adapter device */
extern struct i2c_adapter *of_find_i2c_adapter_by_node(struct device_node *node);
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
const struct of_device_id
*i2c_of_match_device(const struct of_device_id *matches,
struct i2c_client *client);
......
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