void i2c_init(int speed, int slaveaddr);
void i2c_init_board(void);
-#ifdef CONFIG_SYS_I2C_LEGACY
+#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY)
/*
* i2c_get_bus_num:
*
* only for backwardcompatibility, should go away if we switched
* completely to new multibus support.
*/
-#if defined(CONFIG_SYS_I2C_LEGACY) || defined(CONFIG_I2C_MULTI_BUS)
+#if CONFIG_IS_ENABLED(SYS_I2C_LEGACY) || defined(CONFIG_I2C_MULTI_BUS)
# if !defined(CONFIG_SYS_MAX_I2C_BUS)
# define CONFIG_SYS_MAX_I2C_BUS 2
# endif