linux-kernel - Re: [PATCH v5 1/2] dt-bindings: power: Add the bq25790 dt bindings

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Date:   Wed, 10 Feb 2021 09:38:04 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Ricardo Rivera-Matos <r-rivera-matos@...com>
Cc:     sre@...nel.org, linux-pm@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        dmurphy@...com, Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v5 1/2] dt-bindings: power: Add the bq25790 dt bindings

On Tue, 2 Feb 2021 at 03:20, Ricardo Rivera-Matos <r-rivera-matos@...com> wrote:
>
> From: Dan Murphy <dmurphy@...com>
>
> Add the bindings for the bq25790.
>
> Reviewed-by: Rob Herring <robh@...nel.org>
> Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@...com>
> Signed-off-by: Dan Murphy <dmurphy@...com>

Order of tags is entirely wrong. Did Rob review it before Dan write
it?  Your Sob should be after Dan's (unless you wrote it at first?).\

> ---
>  .../bindings/power/supply/bq25790.yaml        | 95 +++++++++++++++++++
>  1 file changed, 95 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/power/supply/bq25790.yaml
>
> diff --git a/Documentation/devicetree/bindings/power/supply/bq25790.yaml b/Documentation/devicetree/bindings/power/supply/bq25790.yaml
> new file mode 100644
> index 000000000000..6d9178ce5a2b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/supply/bq25790.yaml
> @@ -0,0 +1,95 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +# Copyright (C) 2020 Texas Instruments Incorporated
> +%YAML 1.2
> +---
> +$id: "http://devicetree.org/schemas/power/supply/bq25790.yaml#"
> +$schema: "http://devicetree.org/meta-schemas/core.yaml#"
> +
> +title: TI BQ25790 Switch Mode Buck-Boost Charger
> +
> +maintainers:
> +  - Dan Murphy <dmurphy@...com>
> +
> +description: |
> +  BQ25790 is a highly integrated switch-mode buck-boost charger for 1-4 cell
> +  Li-ion batteries and Li-polymer batteries. The device charges a battery from a
> +  wide range of input sources including legacy USB adapters to high voltage USB
> +  PD adapters and traditional barrel adapters.
> +
> +allOf:
> +  - $ref: power-supply.yaml#
> +
> +properties:
> +  compatible:
> +    enum:
> +      - ti,bq25790
> +      - ti,bq25792
> +
> +  reg:
> +    maxItems: 1
> +
> +  ti,watchdog-timeout-ms:
> +    default: 0
> +    description: |
> +      Watchdog timer in milli seconds. 0 (default) disables the watchdog.
> +    minimum: 0
> +    maximum: 160000

Why do you need minimum/maximum if you enumerate the values?

> +    enum: [ 0, 500, 1000, 2000, 20000, 40000, 80000, 160000]
> +
> +  input-voltage-limit-microvolt:
> +    description: |
> +      Minimum input voltage limit in micro volts with a 100000 micro volt step.
> +    minimum: 3600000
> +    maximum: 22000000
> +
> +  input-current-limit-microamp:
> +    description: |
> +      Maximum input current limit in micro amps with a 100000 micro amp step.
> +    minimum: 100000
> +    maximum: 3300000
> +
> +  monitored-battery:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    description: phandle to the battery node being monitored
> +
> +  interrupts:
> +    maxItems: 1
> +    description: |
> +      Interrupt sends an active low, 256 μs pulse to host to report the charger
> +      device status and faults.
> +
> +required:
> +  - compatible
> +  - reg
> +  - monitored-battery
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +    bat: battery {
> +      compatible = "simple-battery";
> +      constant-charge-current-max-microamp = <2000000>;
> +      constant-charge-voltage-max-microvolt = <4200000>;
> +      precharge-current-microamp = <160000>;
> +      charge-term-current-microamp = <160000>;
> +    };
> +    #include <dt-bindings/gpio/gpio.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>

Includes go to the beginning of example (and to beginning of DTS).

Best regards,
Krzysztof