From: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Fix build errors in extcon-sm5502.c by making EXTCON_SM5502 depend on I2C since it selects REGMAP_I2C. The build errors happen when CONFIG_I2C=m and CONFIG_EXTCON_SM5502=y. This Kconfig change causes CONFIG_EXTCON_SM5502 to be =m when CONFIG_I2C=m. drivers/built-in.o: In function `regmap_smbus_byte_reg_read': regmap-i2c.c:(.text+0x5030a): undefined reference to `i2c_smbus_read_byte_data' drivers/built-in.o: In function `regmap_smbus_byte_reg_write': regmap-i2c.c:(.text+0x50338): undefined reference to `i2c_smbus_write_byte_data' drivers/built-in.o: In function `regmap_smbus_word_reg_read': regmap-i2c.c:(.text+0x50356): undefined reference to `i2c_smbus_read_word_data' drivers/built-in.o: In function `regmap_smbus_word_reg_write': regmap-i2c.c:(.text+0x50384): undefined reference to `i2c_smbus_write_word_data' drivers/built-in.o: In function `regmap_i2c_read': regmap-i2c.c:(.text+0x503cf): undefined reference to `i2c_transfer' drivers/built-in.o: In function `regmap_i2c_gather_write': regmap-i2c.c:(.text+0x50442): undefined reference to `i2c_transfer' drivers/built-in.o: In function `regmap_i2c_write': regmap-i2c.c:(.text+0x50474): undefined reference to `i2c_master_send' drivers/built-in.o: In function `sm5502_muic_i2c_init': extcon-sm5502.c:(.init.text+0x6630): undefined reference to `i2c_register_driver' Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Cc: MyungJoo Ham <myungjoo.ham@xxxxxxxxxxx> Cc: Chanwoo Choi <cw00.choi@xxxxxxxxxxx> --- drivers/extcon/Kconfig | 1 + 1 file changed, 1 insertion(+) Index: linux-next-20140813/drivers/extcon/Kconfig =================================================================== --- linux-next-20140813.orig/drivers/extcon/Kconfig +++ linux-next-20140813/drivers/extcon/Kconfig @@ -72,6 +72,7 @@ config EXTCON_PALMAS config EXTCON_SM5502 tristate "SM5502 EXTCON support" + depends on I2C select IRQ_DOMAIN select REGMAP_I2C select REGMAP_IRQ -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html