1config DM_I2C 2 bool "Enable Driver Model for I2C drivers" 3 depends on DM 4 help 5 Enable driver model for I2C. The I2C uclass interface: probe, read, 6 write and speed, is implemented with the bus drivers operations, 7 which provide methods for bus setting and data transfer. Each chip 8 device (bus child) info is kept as parent platdata. The interface 9 is defined in include/i2c.h. When i2c bus driver supports the i2c 10 uclass, but the device drivers not, then DM_I2C_COMPAT config can 11 be used as compatibility layer. 12 13config DM_I2C_COMPAT 14 bool "Enable I2C compatibility layer" 15 depends on DM 16 help 17 Enable old-style I2C functions for compatibility with existing code. 18 This option can be enabled as a temporary measure to avoid needing 19 to convert all code for a board in a single commit. It should not 20 be enabled for any board in an official release. 21 22config DM_I2C_GPIO 23 bool "Enable Driver Model for software emulated I2C bus driver" 24 depends on DM_I2C && DM_GPIO 25 help 26 Enable the i2c bus driver emulation by using the GPIOs. The bus GPIO 27 configuration is given by the device tree. Kernel-style device tree 28 bindings are supported. 29 Binding info: doc/device-tree-bindings/i2c/i2c-gpio.txt 30 31config SYS_I2C_UNIPHIER 32 bool "UniPhier I2C driver" 33 depends on ARCH_UNIPHIER && DM_I2C 34 default y 35 help 36 Support for Panasonic UniPhier I2C controller driver. This I2C 37 controller is used on PH1-LD4, PH1-sLD8 or older UniPhier SoCs. 38 39config SYS_I2C_UNIPHIER_F 40 bool "UniPhier FIFO-builtin I2C driver" 41 depends on ARCH_UNIPHIER && DM_I2C 42 default y 43 help 44 Support for Panasonic UniPhier FIFO-builtin I2C controller driver. 45 This I2C controller is used on PH1-Pro4 or newer UniPhier SoCs. 46