Re: [PATCH v2 1/2] dt-bindings: power: supply: add adi,lt8491.yaml

[Conor Dooley <conor@kernel.org>]

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On Thu, Sep 03, 2026 at 06:46:36PM +0800, John Erasmus Mari Geronimo wrote:
> Add documentation for devicetree bindings for LT8491
> 
> Signed-off-by: John Erasmus Mari Geronimo <johnerasmusmari.geronimo@analog.com>
> ---
>  .../bindings/power/supply/adi,lt8491.yaml     | 92 +++++++++++++++++++
>  MAINTAINERS                                   |  6 ++
>  2 files changed, 98 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/supply/adi,lt8491.yaml
> 
> diff --git a/Documentation/devicetree/bindings/power/supply/adi,lt8491.yaml b/Documentation/devicetree/bindings/power/supply/adi,lt8491.yaml
> new file mode 100644
> index 0000000000000..bb364b48fee58
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/adi,lt8491.yaml
> @@ -0,0 +1,92 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/supply/adi,lt8491.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Linear Technology (Analog Devices) LT8491 Battery Charger
> +
> +maintainers:
> +  - John Erasmus Mari Geronimo <johnerasmusmari.geronimo@analog.com>
> +
> +description: |
> +  The LT8491 is a buck-boost switching regulator battery charger that implements
> +  a constant-current constant-voltage (CCCV) charging profile used for most
> +  battery types, including sealed lead-acid (SLA), flooded, gel and lithium-ion.
> +
> +  Specifications about the charger can be found at:
> +    https://www.analog.com/en/products/lt8491.html
> +
> +allOf:
> +  - $ref: power-supply.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - adi,lt8491
> +
> +  reg:
> +    maxItems: 1
> +
> +  adi,rsense1-micro-ohms:
> +    description: Resistance value of RSENSE1 in micro ohms.
> +
> +  adi,rimon-out-ohms:
> +    description: Resistance value of RIMON_OUT in ohms.
> +
> +  adi,rsense2-micro-ohms:
> +    description: Resistance value of RSENSE2 in micro ohms.
> +
> +  adi,rdaco-ohms:
> +    description: Resistance value of RDACO1 + RDACO2 in ohms.
> +
> +  adi,rfbout1-ohms:
> +    description: Resistance value of RFBOUT1 in ohms.
> +
> +  adi,rfbout2-ohms:
> +    description: Resistance value of RFBOUT2 in ohms.
> +
> +  adi,rdaci-ohms:
> +    description: Resistance value of RDACI1 + RDACI2 in ohms.
> +
> +  adi,rfbin2-ohms:
> +    description: Resistance value of RFBIN2 in ohms.
> +
> +  adi,rfbin1-ohms:
> +    description: Resistance value of RFBIN1 in ohms.
> +
> +required:
> +  - compatible
> +  - reg
> +  - adi,rsense1-micro-ohms
> +  - adi,rimon-out-ohms
> +  - adi,rsense2-micro-ohms
> +  - adi,rdaco-ohms
> +  - adi,rfbout1-ohms
> +  - adi,rfbout2-ohms
> +  - adi,rdaci-ohms
> +  - adi,rfbin2-ohms
> +  - adi,rfbin1-ohms
> +
> +additionalProperties: false

Valid point here from Sashiko.
pw-bot: changes-requested

Thanks,
Conor.

> +
> +examples:
> +  - |
> +    i2c {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        battery-charger@10 {
> +            compatible = "adi,lt8491";
> +            reg = <0x10>;
> +            adi,rsense1-micro-ohms = <5000>;
> +            adi,rimon-out-ohms = <124000>;
> +            adi,rsense2-micro-ohms = <3000>;
> +            adi,rdaco-ohms = <64900>;
> +            adi,rfbout1-ohms = <113000>;
> +            adi,rfbout2-ohms = <10000>;
> +            adi,rdaci-ohms = <7000>;
> +            adi,rfbin2-ohms = <3480>;
> +            adi,rfbin1-ohms = <102000>;
> +        };
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 2fb1c75afd163..d79187312f789 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -15170,6 +15170,12 @@ F:	Documentation/devicetree/bindings/hwmon/pmbus/adi,lt3074.yaml
>  F:	Documentation/hwmon/lt3074.rst
>  F:	drivers/hwmon/pmbus/lt3074.c
>  
> +LT8491 BATTERY CHARGER DRIVER
> +M:	John Erasmus Mari Geronimo <johnerasmusmari.geronimo@analog.com>
> +L:	linux-pm@vger.kernel.org
> +S:	Maintained
> +F:	Documentation/devicetree/bindings/power/supply/adi,lt8491.yaml
> +
>  LTC1660 DAC DRIVER
>  M:	Marcus Folkesson <marcus.folkesson@gmail.com>
>  L:	linux-iio@vger.kernel.org
> -- 
> 2.34.1
> 

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