DW APB I2C slave code in fact depends on the DW I2C driver core, but not on the platform code as it used to be before commit 90bc1ee6de9f ("i2c: designware: Allow slave mode for PCI enumerated devices"). Yes, the I2C slave interface is currently supported by both the platform and PCI versions of the IP core, but it still depends on the DW I2C core functionality and must be available only if the last one is enabled. So make sure the DW APB I2C slave config is only available if the I2C_DESIGNWARE_CORE config is enabled. Signed-off-by: Serge Semin <Sergey.Semin@xxxxxxxxxxxxxxxxxxxx> Acked-by: Jarkko Nikula <jarkko.nikula@xxxxxxxxxxxxxxx> Cc: Alexey Malahov <Alexey.Malahov@xxxxxxxxxxxxxxxxxxxx> Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx> Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> Cc: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> Cc: Rob Herring <robh+dt@xxxxxxxxxx> Cc: linux-mips@xxxxxxxxxxxxxxx Cc: devicetree@xxxxxxxxxxxxxxx --- drivers/i2c/busses/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig index 1d940810e47e..7f92f6a96042 100644 --- a/drivers/i2c/busses/Kconfig +++ b/drivers/i2c/busses/Kconfig @@ -529,6 +529,7 @@ config I2C_DESIGNWARE_CORE config I2C_DESIGNWARE_SLAVE bool "Synopsys DesignWare Slave" + depends on I2C_DESIGNWARE_CORE select I2C_SLAVE help If you say yes to this option, support will be included for the -- 2.26.2