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| author | Przemyslaw Marczak <p.marczak@samsung.com> | 2015-03-31 18:57:17 +0200 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2015-04-18 11:11:17 -0600 |
| commit | 705fcf4de40383a47dc92c4c9d7dbeb37a9d1104 (patch) | |
| tree | e9accdc8a949c880e206a6ae6129c6b5f55efa68 /drivers/i2c | |
| parent | 2984e7a102aec85a39827b314bc898ebb5d2fdb9 (diff) | |
| download | talos-obmc-uboot-705fcf4de40383a47dc92c4c9d7dbeb37a9d1104.tar.gz talos-obmc-uboot-705fcf4de40383a47dc92c4c9d7dbeb37a9d1104.zip | |
Kconfig: i2c: fix help message related to dm i2c
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Acked-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers/i2c')
| -rw-r--r-- | drivers/i2c/Kconfig | 17 |
1 files changed, 7 insertions, 10 deletions
diff --git a/drivers/i2c/Kconfig b/drivers/i2c/Kconfig index 692810d057..c83a98459a 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 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" |
