On Thu, Oct 12, 2017 at 02:36:04PM +0200, Maciej Purski wrote:
> Add optional max expected current property which allows calibrating
> the ina sensor in order to achieve requested measure scale. Document
> the changes in Documentation/hwmon/ina2xx.
>
> Signed-off-by: Maciej Purski <[email protected]>
> ---
> Documentation/devicetree/bindings/hwmon/ina2xx.txt | 4 +++-
> Documentation/hwmon/ina2xx | 3 +++
> 2 files changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/hwmon/ina2xx.txt
> b/Documentation/devicetree/bindings/hwmon/ina2xx.txt
> index 02af0d9..49ef0be 100644
> --- a/Documentation/devicetree/bindings/hwmon/ina2xx.txt
> +++ b/Documentation/devicetree/bindings/hwmon/ina2xx.txt
> @@ -14,11 +14,13 @@ Optional properties:
>
> - shunt-resistor
> Shunt resistor value in micro-Ohm
> -
> +- ti-max-expected-current-microamp
> + Max expected current value in mA
ti,max-...
The property name is a bit long. Does "expected" add anything? Is there
a max unexpected current?
> Example:
>
> ina220@44 {
> compatible = "ti,ina220";
> reg = <0x44>;
> shunt-resistor = <1000>;
> + ti-max-expected-current-microamp = <3000>;
> };
> diff --git a/Documentation/hwmon/ina2xx b/Documentation/hwmon/ina2xx
> index cfd31d9..30620e8 100644
> --- a/Documentation/hwmon/ina2xx
> +++ b/Documentation/hwmon/ina2xx
> @@ -55,6 +55,9 @@ The shunt value in micro-ohms can be set via platform data
> or device tree at
> compile-time or via the shunt_resistor attribute in sysfs at run-time. Please
> refer to the Documentation/devicetree/bindings/i2c/ina2xx.txt for bindings
> if the device tree is used.
> +The max expected current value in miliamp can be set via platform data
> +or device tree at compile-time or via currX_max attribute in sysfs
> +at run-time.
>
> Additionally ina226 supports update_interval attribute as described in
> Documentation/hwmon/sysfs-interface. Internally the interval is the sum of
> --
> 2.7.4
>
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