linux-kernel - Re: [PATCH 1/2] dt-bindings: power: supply: ltc3350-charger: Add bindings

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Date: Tue, 9 Apr 2024 10:27:44 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Mike Looijmans <mike.looijmans@...ic.nl>, linux-pm@...r.kernel.org
Cc: Conor Dooley <conor+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Rob Herring <robh@...nel.org>, Sebastian Reichel <sre@...nel.org>,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: power: supply: ltc3350-charger: Add
 bindings

On 08/04/2024 08:49, Mike Looijmans wrote:
> The LTC3350 is a backup power controller that can charge and monitor
> a series stack of one to four supercapacitors.
> 
> Signed-off-by: Mike Looijmans <mike.looijmans@...ic.nl>
> ---
> 
>  .../bindings/power/supply/ltc3350.yaml        | 55 +++++++++++++++++++


Missing vendor prefix, use compatible as filename.

>  1 file changed, 55 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/supply/ltc3350.yaml
> 
> diff --git a/Documentation/devicetree/bindings/power/supply/ltc3350.yaml b/Documentation/devicetree/bindings/power/supply/ltc3350.yaml
> new file mode 100644
> index 000000000000..607a62fd25ba
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/ltc3350.yaml
> @@ -0,0 +1,55 @@
> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
> +# Copyright (C) 2024 Topic Embedded Products
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/supply/ltc3350.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Linear Technology (Analog Devices) LTC3350 Supercap Charger
> +
> +maintainers:
> +  - Mike Looijmans <mike.looijmans@...ic.nl>
> +
> +description: |
> +  The LTC3350 is a  High Current Supercapacitor Backup Controller and System

Just one space after 'a'.

> +  Monitor.
> +  Specifications about the charger can be found at:
> +    https://www.analog.com/en/products/ltc3350.html
> +
> +properties:
> +  compatible:
> +    enum:
> +      - lltc,ltc3350
> +
> +  reg:
> +    maxItems: 1
> +    description: I2C address of the charger.

Drop description, it is obvious.

> +
> +  lltc,rsnsc-micro-ohms:
> +    description: Capacitor charger sense resistor in microohm.
> +    minimum: 1000
> +
> +  lltc,rsnsi-micro-ohms:
> +    description: Input current sense resistor in microohm.
> +    minimum: 1000

Looks like it is shunt-resistor-micro-ohms. Unless it is something
different?

> +
> +required:
> +  - compatible
> +  - reg
> +  - lltc,rsnsc-micro-ohms
> +  - lltc,rsnsi-micro-ohms
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    i2c {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +      charger: battery-charger@9 {
> +              compatible = "lltc,ltc3350";

Messed indentation. Keep it consistent.

Best regards,
Krzysztof