config DM_I2C bool "Enable Driver Model for I2C drivers" depends on DM help Enable driver model for I2C. The I2C uclass interface: probe, read, write and speed, is implemented with the bus drivers operations, which provide methods for bus setting and data transfer. Each chip device (bus child) info is kept as parent platdata. The interface is defined in include/i2c.h. When i2c bus driver supports the i2c uclass, but the device drivers not, then DM_I2C_COMPAT config can be used as compatibility layer. config DM_I2C_COMPAT bool "Enable I2C compatibility layer" depends on DM help Enable old-style I2C functions for compatibility with existing code. This option can be enabled as a temporary measure to avoid needing to convert all code for a board in a single commit. It should not be enabled for any board in an official release. config DM_I2C_GPIO bool "Enable Driver Model for software emulated I2C bus driver" depends on DM_I2C && DM_GPIO help Enable the i2c bus driver emulation by using the GPIOs. The bus GPIO configuration is given by the device tree. Kernel-style device tree bindings are supported. Binding info: doc/device-tree-bindings/i2c/i2c-gpio.txt config SYS_I2C_UNIPHIER bool "UniPhier I2C driver" depends on ARCH_UNIPHIER && DM_I2C default y help Support for Panasonic UniPhier I2C controller driver. This I2C controller is used on PH1-LD4, PH1-sLD8 or older UniPhier SoCs. config SYS_I2C_UNIPHIER_F bool "UniPhier FIFO-builtin I2C driver" depends on ARCH_UNIPHIER && DM_I2C default y help Support for Panasonic UniPhier FIFO-builtin I2C controller driver. This I2C controller is used on PH1-Pro4 or newer UniPhier SoCs. menuconfig SYS_I2C bool "I2C device support" if SYS_I2C config HARD_I2C bool config SYS_I2C_MXC bool "Freescale i.MX I2C controller" select HARD_I2C select I2C_QUIRK_REG if FSL_LSCH3 || SOC_LS102XA endif