Signed-off-by: Przemyslaw Marczak p.marczak@samsung.com Cc: Masahiro Yamada yamada.masahiro@socionext.com Cc: Mike Frysinger vapier@gentoo.org Cc: Simon Glass sjg@chromium.org Cc: Heiko Schocher hs@denx.de
Changes V2: - add i2c uclass description --- drivers/i2c/Kconfig | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-)
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig index 692810d..979522f 100644 --- a/drivers/i2c/Kconfig +++ b/drivers/i2c/Kconfig @@ -2,16 +2,13 @@ config DM_I2C bool "Enable Driver Model for I2C drivers" depends on DM help - Enable driver model for I2C. This SPI flash interface - (spi_flash_probe(), spi_flash_write(), etc.) is then - implemented by the SPI flash uclass. There is one standard - SPI flash driver which knows how to probe most chips - supported by U-Boot. The uclass interface is defined in - include/spi_flash.h, but is currently fully compatible - with the old interface to avoid confusion and duplication - during the transition parent. SPI and SPI flash must be - enabled together (it is not possible to use driver model - for one and not the other). + Enable driver model for I2C. The I2C uclass interface: probe, read, + write or speed, is implemented with the bus drivers uclass operations, + which provides 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"