linux-kernel - Re: [PATCH 1/2] dt-bindings: iio: adc: Add rtq6056 adc support

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Date:   Sat, 18 Jun 2022 19:00:19 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     ChiYuan Huang <u0084500@...il.com>
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        cy_huang <cy_huang@...htek.com>,
        linux-iio <linux-iio@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH 1/2] dt-bindings: iio: adc: Add rtq6056 adc support

On 18/06/2022 08:50, ChiYuan Huang wrote:
> Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org> 於 2022年6月18日 週六 上午9:45寫道：
>>
>> On 17/06/2022 02:32, cy_huang wrote:
>>> From: ChiYuan Huang <cy_huang@...htek.com>
>>>
>>> Add the documentation for Richtek RTQ6056.
>>>
>>> Signed-off-by: ChiYuan Huang <cy_huang@...htek.com>
>>> ---
>>>  .../bindings/iio/adc/richtek,rtq6056-adc.yaml      | 57 ++++++++++++++++++++++
>>>  1 file changed, 57 insertions(+)
>>>  create mode 100644 Documentation/devicetree/bindings/iio/adc/richtek,rtq6056-adc.yaml
>>>
>>> diff --git a/Documentation/devicetree/bindings/iio/adc/richtek,rtq6056-adc.yaml b/Documentation/devicetree/bindings/iio/adc/richtek,rtq6056-adc.yaml
>>> new file mode 100644
>>> index 00000000..6b4e0e0
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/iio/adc/richtek,rtq6056-adc.yaml
>>> @@ -0,0 +1,57 @@
>>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>>> +%YAML 1.2
>>> +---
>>> +$id: http://devicetree.org/schemas/iio/adc/richtek,rtq6056-adc.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: RTQ6056 Bi-Directional Current and Power Monitor with 16-bit ADC
>>> +
>>> +maintainers:
>>> +  - ChiYuan Huang <cy_huang@...htek.com>
>>> +
>>> +description: |
>>> +  The RTQ6056 is a high accuracy current-sense monitor with I2C and SMBus
>>> +  interface, and the device provides full information for system by reading
>>> +  out the loading current and power.
>>> +
>>> +  The device monitors both of the drops across sense resistor and the BUS
>>> +  voltage, converts into the current in amperes, and power in watts through
>>> +  internal analog-to-digital converter ADC. The programmable calibration,
>>> +  adjustable conversion time, and averaging function are also built in for
>>> +  more design flexibility.
>>> +
>>> +  Datasheet is available at
>>> +  https://www.richtek.com/assets/product_file/RTQ6056/DSQ6056-00.pdf
>>> +
>>> +properties:
>>> +  compatible:
>>> +    const: richtek,rtq6056
>>> +
>>> +  reg:
>>> +    maxItems: 1
>>> +
>>> +  "#io-channel-cells":
>>> +    const: 1
>>> +
>>> +  richtek,shunt-resistor-uohm:
>>
>> Use standard properties, so "-micro-ohms". Drop the unit from
>> description and drop the ref.
>>
> Use richtek.shunt-resistor-micro-ohms?

Yes.

> Or the prefix 'richtek,' can be removed?

No, the vendor prefix must stay.

Best regards,
Krzysztof