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-rw-r--r--include/linux/i2c.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 844d2662a875..bc17f7fa7d39 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -47,6 +47,7 @@ struct i2c_driver;
47union i2c_smbus_data; 47union i2c_smbus_data;
48struct i2c_board_info; 48struct i2c_board_info;
49 49
50#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
50/* 51/*
51 * The master routines are the ones normally used to transmit data to devices 52 * The master routines are the ones normally used to transmit data to devices
52 * on a bus (or read from them). Apart from two basic transfer functions to 53 * on a bus (or read from them). Apart from two basic transfer functions to
@@ -93,6 +94,7 @@ extern s32 i2c_smbus_read_i2c_block_data(struct i2c_client *client,
93extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client, 94extern s32 i2c_smbus_write_i2c_block_data(struct i2c_client *client,
94 u8 command, u8 length, 95 u8 command, u8 length,
95 const u8 *values); 96 const u8 *values);
97#endif /* I2C */
96 98
97/** 99/**
98 * struct i2c_driver - represent an I2C device driver 100 * struct i2c_driver - represent an I2C device driver
@@ -260,6 +262,7 @@ struct i2c_board_info {
260 .type = dev_type, .addr = (dev_addr) 262 .type = dev_type, .addr = (dev_addr)
261 263
262 264
265#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
263/* Add-on boards should register/unregister their devices; e.g. a board 266/* Add-on boards should register/unregister their devices; e.g. a board
264 * with integrated I2C, a config eeprom, sensors, and a codec that's 267 * with integrated I2C, a config eeprom, sensors, and a codec that's
265 * used in conjunction with the primary hardware. 268 * used in conjunction with the primary hardware.
@@ -283,6 +286,7 @@ extern struct i2c_client *
283i2c_new_dummy(struct i2c_adapter *adap, u16 address); 286i2c_new_dummy(struct i2c_adapter *adap, u16 address);
284 287
285extern void i2c_unregister_device(struct i2c_client *); 288extern void i2c_unregister_device(struct i2c_client *);
289#endif /* I2C */
286 290
287/* Mainboard arch_initcall() code should register all its I2C devices. 291/* Mainboard arch_initcall() code should register all its I2C devices.
288 * This is done at arch_initcall time, before declaring any i2c adapters. 292 * This is done at arch_initcall time, before declaring any i2c adapters.
@@ -299,7 +303,7 @@ i2c_register_board_info(int busnum, struct i2c_board_info const *info,
299{ 303{
300 return 0; 304 return 0;
301} 305}
302#endif 306#endif /* I2C_BOARDINFO */
303 307
304/* 308/*
305 * The following structs are for those who like to implement new bus drivers: 309 * The following structs are for those who like to implement new bus drivers:
@@ -394,6 +398,7 @@ struct i2c_client_address_data {
394 398
395/* administration... 399/* administration...
396 */ 400 */
401#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
397extern int i2c_add_adapter(struct i2c_adapter *); 402extern int i2c_add_adapter(struct i2c_adapter *);
398extern int i2c_del_adapter(struct i2c_adapter *); 403extern int i2c_del_adapter(struct i2c_adapter *);
399extern int i2c_add_numbered_adapter(struct i2c_adapter *); 404extern int i2c_add_numbered_adapter(struct i2c_adapter *);
@@ -435,6 +440,7 @@ static inline int i2c_adapter_id(struct i2c_adapter *adap)
435{ 440{
436 return adap->nr; 441 return adap->nr;
437} 442}
443#endif /* I2C */
438#endif /* __KERNEL__ */ 444#endif /* __KERNEL__ */
439 445
440/** 446/**