linux-kernel - Re: [PATCH 1/2] dt-bindings: power: Add the BQ27561 fuel gauge bindings

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Date:   Thu, 30 Apr 2020 00:31:05 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Dan Murphy <dmurphy@...com>
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh@...nel.org>
Subject: Re: [PATCH 1/2] dt-bindings: power: Add the BQ27561 fuel gauge
 bindings

Hi,

On Fri, Apr 17, 2020 at 12:22:26PM -0500, Dan Murphy wrote:
> Introduce the Texas Instrument BQ27561 and BQ27750 fuel gauge device
> tree bindings.
> 
> Cc: Rob Herring <robh@...nel.org>
> Signed-off-by: Dan Murphy <dmurphy@...com>
> ---

I think its best to just add them to bq27xxx.txt. Conversion to YAML
would still be nice of course :)

In any case the binding is incomplete, since batteries should contain
a power-supplies node referencing their charger via a phandle, see
power_suppliy.txt (which still needs to be converted to YAML).

-- Sebastian

>  .../bindings/power/supply/bq27561.yaml        | 46 +++++++++++++++++++
>  1 file changed, 46 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/supply/bq27561.yaml
> 
> diff --git a/Documentation/devicetree/bindings/power/supply/bq27561.yaml b/Documentation/devicetree/bindings/power/supply/bq27561.yaml
> new file mode 100644
> index 000000000000..abc9acdbc704
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/bq27561.yaml
> @@ -0,0 +1,46 @@
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (C) 2020 Texas Instruments Incorporated
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/power/supply/bq27561.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: TI BQ27561 and BQ27750 Fuel Gauges
> +
> +maintainers:
> +  - Dan Murphy <dmurphy@...com>
> +
> +description: |
> +  The bq27z561 device provides a feature-rich gas gauging solution for
> +  single-cell battery pack applications.
> +
> +  Specifications about the charger can be found at:
> +    https://www.ti.com/lit/gpn/bq27z561
> +    https://www.ti.com/lit/gpn/bq27750
> +
> +properties:
> +  compatible:
> +    enum:
> +      - ti,bq27561
> +      - ti,bq27750
> +
> +  reg:
> +    maxItems: 1
> +    description: |
> +      I2C address of the device which is 0x55
> +
> +required:
> +  - compatible
> +  - reg
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    i2c0 {
> +      #address-cells = <1>;
> +      #size-cells = <0>;
> +      fuel_gauge@55 {
> +        compatible = "ti,bq27561";
> +        reg = <0x55>;
> +      };
> +    };
> -- 
> 2.25.1
> 

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