[PATCH/RFC 2/2] 5200: improve i2c bus error recovery

Grant Likely grant.likely at secretlab.ca
Wed Feb 17 06:33:34 EST 2010


On Fri, Jan 22, 2010 at 1:18 PM, Albrecht Dreß <albrecht.dress at arcor.de> wrote:
> Make the I2C adapter timeout configurable through a Device Tree property
> which gives the timeout in microseconds.
>
> Signed-off-by: Albrecht Dreß <albrecht.dress at arcor.de>
>
> ---
>
> --- linux-2.6.32-orig/Documentation/powerpc/dts-bindings/fsl/i2c.txt    2009-12-03 04:51:21.000000000 +0100
> +++ linux-2.6.32/Documentation/powerpc/dts-bindings/fsl/i2c.txt 2010-01-22 16:04:56.000000000 +0100
> @@ -21,6 +21,7 @@
>  - fsl,preserve-clocking : boolean; if defined, the clock settings
>    from the bootloader are preserved (not touched).
>  - clock-frequency : desired I2C bus clock frequency in Hz.
> + - timeout : I2C timeout in microseconds.

fsl,timeout to avoid namespace collisions please (ie. if a common i2c
'timeout' property is ever defined for all i2c busses)

g.


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