[PATCH-V2 12/12] Documentation: binding: add sclk adjustment properties to i2c-pxa

[Rob Herring]

On Mon, Jun 15, 2015 at 10:49 AM, Vaibhav Hiremath
<vaibhav.hiremath at linaro.org> wrote:
> With addition of PXA910 family of devices, the TWSI module supports
> new feature which allows us to adjust SCLK.
> With DT properties i2c-pxa driver takes input configuration
> in nsec and converts it to respective bit-fields,
>
>  - i2c-sclk-low-time-ns : SCLK low time (tlow)
>    This property is used along with mode selection.
>  - i2c-sclk-high-time-ns : SCLK high time (thigh)
>
> Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath at linaro.org>
> ---
>  Documentation/devicetree/bindings/i2c/i2c-pxa.txt | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/i2c/i2c-pxa.txt b/Documentation/devicetree/bindings/i2c/i2c-pxa.txt
> index 9657db5..0fafd91 100644
> --- a/Documentation/devicetree/bindings/i2c/i2c-pxa.txt
> +++ b/Documentation/devicetree/bindings/i2c/i2c-pxa.txt
> @@ -23,12 +23,25 @@ Optional properties :
>   - i2c-disable-after-xfer : If set, driver will disable I2C module
>     after msg xfer and enable it again before xfer.
>
> +   (Applicable to PXA910 family):
> +
> + - i2c-sclk-low-time-ns : SCLK low time (tlow), for standard/fast/high
> +   speed mode.
> +   This property is used along with mode selection. Driver uses this property
> +   to set low/high time for standard and fast speed mode, as counter bit-field
> +   is same for both.

This belongs below both properties, and it should be clear that both
properties are required if present.

> + - i2c-sclk-high-time-ns : SCLK high time (thigh), Used in case of high speed
> +   mode.

Rob