[U-Boot] [PATCH V2 2/3] Kconfig: i2c: fix help message related to dm i2c

[Przemyslaw Marczak]

Signed-off-by: Przemyslaw Marczak <p.marczak at samsung.com>
Cc: Masahiro Yamada <yamada.masahiro at socionext.com>
Cc: Mike Frysinger <vapier at gentoo.org>
Cc: Simon Glass <sjg at chromium.org>
Cc: Heiko Schocher <hs at 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"
-- 
1.9.1