linux-kernel - Re: [PATCH v2 1/2] dt-bindings: leds: ROHM BD2606MVV LED driver

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Message-ID: <a16a8071-3c67-0f40-d7da-3459f7dc584d@linaro.org>
Date:   Mon, 10 Apr 2023 17:34:00 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Andreas Kemnade <andreas@...nade.info>, pavel@....cz,
        lee@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, linux-leds@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Matti Vaittinen <mazziesaccount@...il.com>
Subject: Re: [PATCH v2 1/2] dt-bindings: leds: ROHM BD2606MVV LED driver

On 07/04/2023 07:08, Andreas Kemnade wrote:
> Document ROHM BD2606MVV LED driver devicetree bindings.

Subject: maybe drop "driver" (suggests it is for Linux drivers, although
maybe it matches the actual hardware here?) and add missing verb, e.g.
"Add ROHM ..."

> 
> Signed-off-by: Andreas Kemnade <andreas@...nade.info>
> ---
>  .../bindings/leds/rohm,bd2606mvv.yaml         | 83 +++++++++++++++++++
>  1 file changed, 83 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/leds/rohm,bd2606mvv.yaml
> 
> diff --git a/Documentation/devicetree/bindings/leds/rohm,bd2606mvv.yaml b/Documentation/devicetree/bindings/leds/rohm,bd2606mvv.yaml
> new file mode 100644
> index 0000000000000..7f53d09e7b054
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/rohm,bd2606mvv.yaml
> @@ -0,0 +1,83 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/leds/rohm,bd2606mvv.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: BD2606MVV LED controller

ROHM BD....

> +
> +maintainers:
> +  - Andreas Kemnade <andreas@...nade.info>
> +
> +description:
> +  The BD2606 MVV is a programmable LED controller connected via I2C that can
> +  drive 6 separate lines. Each of them can be individually switched on and off
> +  but the brightness setting is shared between two of them.
> +
> +  Datasheet is available at
> +  https://fscdn.rohm.com/en/products/databook/datasheet/ic/power/led_driver/bd2606mvv_1-e.pdf
> +
> +properties:
> +  compatible:
> +    const: rohm,bd2606mvv
> +
> +  reg:
> +    description: I2C slave address of the controller.

Drop description, it's obvious.

> +    maxItems: 1
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +  enable-gpios:
> +    maxItems: 1
> +    description: GPIO pin to enable/disable the device.
> +
> +patternProperties:
> +  "^led@[0-6]$":
> +    type: object
> +    $ref: common.yaml#
> +    unevaluatedProperties: false
> +
> +    properties:
> +      reg:
> +        minimum: 0
> +        maximum: 6
> +
> +    required:
> +      - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +
Drop blank line

> +    #include <dt-bindings/leds/common.h>
> +
> +    i2c0 {

i2c {

> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        led-controller@66 {
> +            compatible = "rohm,bd2606mvv";
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +            reg = <0x66>;

reg is always second property in DTS.

> +
> +            led@0 {
> +                color = <LED_COLOR_ID_RED>;
> +                function = LED_FUNCTION_POWER;
> +                reg = <0x0>;

Ditto



Best regards,
Krzysztof