Hello Simon,
On 03/28/2015 04:08 PM, Simon Glass wrote:
Hi Przemyslaw,
On 27 March 2015 at 11:33, Przemyslaw Marczak <[email protected]> wrote:
Signed-off-by: Przemyslaw Marczak <[email protected]>
Cc: Masahiro Yamada <[email protected]>
Cc: Mike Frysinger <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Heiko Schocher <[email protected]>
Changes V2:
- add i2c uclass description
---
drivers/i2c/Kconfig | 17 +++++++----------
1 file changed, 7 insertions(+), 10 deletions(-)
Acked-by: Simon Glass <[email protected]>
(see nit below)
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
Can we tweak this a bit?
write and speed, is implemented with the bus drivers' operations,
which provide methods for bus setting and data transfer. Each chip
Ok, will corrent this.
+ 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
Regards,
Simon
Best regards,
--
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
[email protected]
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