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

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Date:   Sat, 18 Jun 2022 23:50:32 +0800
From:   ChiYuan Huang <u0084500@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
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

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?
Or the prefix 'richtek,' can be removed?
> > +    description: Shunt IN+/IN- sensing node resistor in microohm.
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +
> > +required:
> > +  - compatible
> > +  - reg
> > +  - "#io-channel-cells"
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    i2c {
> > +      #address-cells = <1>;
> > +      #size-cells = <0>;
> > +      rtq6056@40 {
>
> Generic node name, so probably "adc" (or something else appropriate).
>
Ack in next.
> > +        compatible = "richtek,rtq6056";
> > +        reg = <0x40>;
> > +        #io-channel-cells = <1>;
> > +      };
> > +    };
>
>
> Best regards,
> Krzysztof