| Masahiro Yamada | b6036bc | 2015-01-13 12:44:35 +0900 | [diff] [blame] | 1 | config DM_I2C |
| 2 | bool "Enable Driver Model for I2C drivers" |
| 3 | depends on DM |
| 4 | help |
| Przemyslaw Marczak | 705fcf4 | 2015-03-31 18:57:17 +0200 | [diff] [blame] | 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. |
| Masahiro Yamada | 26f820f | 2015-01-13 12:44:36 +0900 | [diff] [blame] | 12 | |
| Simon Glass | 4bba9d3 | 2015-02-13 12:20:48 -0700 | [diff] [blame] | 13 | config 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 | |
| Przemyslaw Marczak | c54473c | 2015-03-31 18:57:18 +0200 | [diff] [blame] | 22 | config 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 | |
| Masahiro Yamada | 26f820f | 2015-01-13 12:44:36 +0900 | [diff] [blame] | 31 | config 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. |
| Masahiro Yamada | 238bd0b | 2015-01-13 12:44:37 +0900 | [diff] [blame] | 38 | |
| 39 | config 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. |