[PATCH V3 1/5] dt-bindings: mfd: ti,bq25703a: Add TI BQ25703A Charger

[Krzysztof Kozlowski]

On Mon, Jun 23, 2025 at 11:22:19AM -0500, Chris Morgan wrote:
> From: Chris Morgan <macromorgan at hotmail.com>
> 
> Document the Texas instruments BQ25703A series of charger managers/
> buck/boost regulators.
> 
> Signed-off-by: Chris Morgan <macromorgan at hotmail.com>
> ---
>  .../devicetree/bindings/mfd/ti,bq25703a.yaml  | 121 ++++++++++++++++++
>  1 file changed, 121 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/mfd/ti,bq25703a.yaml
> 
> diff --git a/Documentation/devicetree/bindings/mfd/ti,bq25703a.yaml b/Documentation/devicetree/bindings/mfd/ti,bq25703a.yaml
> new file mode 100644
> index 000000000000..0727f24b8e54
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/mfd/ti,bq25703a.yaml
> @@ -0,0 +1,121 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/mfd/ti,bq25703a.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: BQ25703A Charger Manager/Buck/Boost Converter
> +
> +maintainers:
> +  - Chris Morgan <macromorgan at hotmail.com>
> +
> +allOf:
> +  - $ref: /schemas/power/supply/power-supply.yaml#
> +
> +properties:
> +  compatible:
> +    const: ti,bq25703a
> +
> +  reg:
> +    const: 0x6b
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  power-supplies: true

Drop, redundant.

> +
> +  monitored-battery:
> +    description:
> +      The phandle for a simple-battery connected to this gauge.

This part is redundant. It cannot be anything else, according to
power-supply.yaml

> +      A minimum of constant-charge-current-max-microamp,
> +      constant-charge-voltage-max-microvolt, and
> +      voltage-min-design-microvolt are required.

This is fine.

> +
> +  input-current-limit-microamp:
> +    description:
> +      Maximum total input current allowed used for both charging and
> +      powering the device.
> +    minimum: 50000
> +    maximum: 6400000
> +    default: 3250000
> +
> +  regulators:
> +    type: object
> +    additionalProperties: false
> +    description:
> +      Boost converter regulator output of bq257xx.
> +
> +    properties:
> +      "usb-otg-vbus":

Drop quotes. Is this the name of regulator called in datasheet? To which
pin this corresponds to? I cannot find anything on usb-otg or usb_otg.


> +        type: object
> +        $ref: /schemas/regulator/regulator.yaml
> +
> +        properties:
> +          regulator-name: true
> +          regulator-min-microamp:
> +            minimum: 0
> +            maximum: 6350000
> +          regulator-max-microamp:
> +            minimum: 0
> +            maximum: 6350000
> +          regulator-min-microvolt:
> +            minimum: 4480000
> +            maximum: 20800000
> +          regulator-max-microvolt:
> +            minimum: 4480000
> +            maximum: 20800000
> +          enable-gpios:
> +            description:
> +              The BQ25703 may require both a register write and a GPIO
> +              toggle to enable the boost regulator.
> +
> +        additionalProperties: false

Please place it after $ref.

> +
> +        required:
> +          - regulator-name
> +          - regulator-min-microamp
> +          - regulator-max-microamp
> +          - regulator-min-microvolt
> +          - regulator-max-microvolt
> +
> +unevaluatedProperties: false
> +
> +required:
> +  - compatible
> +  - reg
> +  - input-current-limit-microamp
> +  - monitored-battery
> +  - power-supplies

Keep the same order as in properties.

Best regards,
Krzysztof