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Message-ID: <842c0616-f635-4443-99b6-c7b47ab145fb@roeck-us.net>
Date:   Sat, 28 Oct 2023 09:10:25 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Antoniu Miclaus <antoniu.miclaus@...log.com>
Cc:     Jean Delvare <jdelvare@...e.com>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Jonathan Corbet <corbet@....net>, linux-hwmon@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org,
        Conor Dooley <conor.dooley@...rochip.com>
Subject: Re: [PATCH v5 1/2] dt-bindings: hwmon: ltc2991: add bindings

On Thu, Oct 26, 2023 at 01:33:12PM +0300, Antoniu Miclaus wrote:
> Add dt-bindings for ltc2991 octal i2c voltage, current and temperature
> monitor.
> 
> Signed-off-by: Antoniu Miclaus <antoniu.miclaus@...log.com>
> Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>

Applied.

Thanks,
Guenter

> ---
> no changes in v5.
>  .../bindings/hwmon/adi,ltc2991.yaml           | 128 ++++++++++++++++++
>  1 file changed, 128 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/hwmon/adi,ltc2991.yaml
> 
> diff --git a/Documentation/devicetree/bindings/hwmon/adi,ltc2991.yaml b/Documentation/devicetree/bindings/hwmon/adi,ltc2991.yaml
> new file mode 100644
> index 000000000000..011e5b65c79c
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/hwmon/adi,ltc2991.yaml
> @@ -0,0 +1,128 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +
> +$id: http://devicetree.org/schemas/hwmon/adi,ltc2991.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Analog Devices LTC2991 Octal I2C Voltage, Current and Temperature Monitor
> +
> +maintainers:
> +  - Antoniu Miclaus <antoniu.miclaus@...log.com>
> +
> +description: |
> +  The LTC2991 is used to monitor system temperatures, voltages and currents.
> +  Through the I2C serial interface, the eight monitors can individually measure
> +  supply voltages and can be paired for differential measurements of current
> +  sense resistors or temperature sensing transistors.
> +
> +  Datasheet:
> +    https://www.analog.com/en/products/ltc2991.html
> +
> +properties:
> +  compatible:
> +    const: adi,ltc2991
> +
> +  reg:
> +    maxItems: 1
> +
> +  '#address-cells':
> +    const: 1
> +
> +  '#size-cells':
> +    const: 0
> +
> +  vcc-supply: true
> +
> +patternProperties:
> +  "^channel@[0-3]$":
> +    type: object
> +    description:
> +      Represents the differential/temperature channels.
> +
> +    properties:
> +      reg:
> +        description:
> +          The channel number. LTC2991 can monitor 4 currents/temperatures.
> +        items:
> +          minimum: 0
> +          maximum: 3
> +
> +      shunt-resistor-micro-ohms:
> +        description:
> +          The value of curent sense resistor in micro ohms. Pin configuration is
> +          set for differential input pair.
> +
> +      adi,temperature-enable:
> +        description:
> +          Enables temperature readings. Pin configuration is set for remote
> +          diode temperature measurement.
> +        type: boolean
> +
> +    required:
> +      - reg
> +
> +    allOf:
> +      - if:
> +          required:
> +            - shunt-resistor-micro-ohms
> +        then:
> +          properties:
> +            adi,temperature-enable: false
> +
> +    additionalProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - vcc-supply
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        hwmon@48 {
> +            compatible = "adi,ltc2991";
> +            reg = <0x48>;
> +            vcc-supply = <&vcc>;
> +        };
> +    };
> +  - |
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        hwmon@48 {
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +
> +            compatible = "adi,ltc2991";
> +            reg = <0x48>;
> +            vcc-supply = <&vcc>;
> +
> +            channel@0 {
> +                    reg = <0x0>;
> +                    shunt-resistor-micro-ohms = <100000>;
> +            };
> +
> +            channel@1 {
> +                    reg = <0x1>;
> +                    shunt-resistor-micro-ohms = <100000>;
> +            };
> +
> +            channel@2 {
> +                    reg = <0x2>;
> +                    adi,temperature-enable;
> +            };
> +
> +            channel@3 {
> +                    reg = <0x3>;
> +                    adi,temperature-enable;
> +            };
> +        };
> +    };
> +...

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