[PATCH v2 3/4] dt-bindings: hwmon: Add ti-max-expected-current-microamp property to ina2xx

Maciej Purski m.purski at samsung.com
Thu Oct 12 07:13:43 PDT 2017



On 10/12/2017 03:55 PM, Guenter Roeck wrote:
> On 10/12/2017 06:00 AM, Maciej Purski wrote:
>>
>>
>> On 10/12/2017 02:39 PM, Krzysztof Kozlowski wrote:
>>> On Thu, Oct 12, 2017 at 2:36 PM, Maciej Purski <m.purski at samsung.com> 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 <m.purski at samsung.com>
>>>> ---
>>>>   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
>>>>   Example:
>>>>
>>>>   ina220 at 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
>>>
>>> mili or micro?
>>>
>>> BR,
>>> Krzysztof
>>
>> Sorry, these should be mili everywhere. I'll fix this.
>>
> 
> You sure ? I think DT usually uses micro.
> 
> Guenter

Yeah, you're right. I was intending to make it milli, but I haven't checked that
all DTS use micro. Sorry for confusion.

Best Regards,

Maciej

> 
>>>
>>>> +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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