The gxp_i2c_slave_irq_handler() is hidden in an #ifdef, but the
caller uses an IS_ENABLED() check:
drivers/i2c/busses/i2c-gxp.c: In function 'gxp_i2c_irq_handler':
drivers/i2c/busses/i2c-gxp.c:467:29: error: implicit declaration of function 'gxp_i2c_slave_irq_handler'; did you mean 'gxp_i2c_irq_handler'? [-Werror=implicit-function-declaration]
It has to consistently use one method or the other to avoid warnings,
so move to IS_ENABLED() here for readability and build coverage, and
move the #ifdef in linux/i2c.h to allow building it as dead code.
Fixes:
4a55ed6f89f5 ("i2c: Add GXP SoC I2C Controller")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Nick Hawkins <nick.hawkins@hpe.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
writew(value, drvdata->base + GXP_I2CMCMD);
}
-#if IS_ENABLED(CONFIG_I2C_SLAVE)
static bool gxp_i2c_slave_irq_handler(struct gxp_i2c_drvdata *drvdata)
{
u8 value;
return true;
}
-#endif
static irqreturn_t gxp_i2c_irq_handler(int irq, void *_drvdata)
{
/* I2C slave support */
-#if IS_ENABLED(CONFIG_I2C_SLAVE)
enum i2c_slave_event {
I2C_SLAVE_READ_REQUESTED,
I2C_SLAVE_WRITE_REQUESTED,
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);
int i2c_slave_event(struct i2c_client *client,
enum i2c_slave_event event, u8 *val);
+#if IS_ENABLED(CONFIG_I2C_SLAVE)
+bool i2c_detect_slave_mode(struct device *dev);
#else
static inline bool i2c_detect_slave_mode(struct device *dev) { return false; }
#endif