linux-kernel - Re: [PATCH v2 1/2] [RFT] dt-bindings: leds: Add cznic,turris1x-leds.yaml binding

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Date:   Tue, 5 Jul 2022 19:51:37 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Pali Rohár <pali@...nel.org>,
        Pavel Machek <pavel@....cz>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Marek Behún <kabel@...nel.org>
Cc:     linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/2] [RFT] dt-bindings: leds: Add
 cznic,turris1x-leds.yaml binding

On 05/07/2022 17:59, Pali Rohár wrote:
> Add device-tree bindings documentation for Turris 1.x RGB LEDs.

The patchset is difficult to find because you attached it to some older
thread. Don't.

> 
> Signed-off-by: Pali Rohár <pali@...nel.org>
> 
> ---
> Changes in v2:
> * Fix schema errors
> ---
>  .../bindings/leds/cznic,turris1x-leds.yaml    | 118 ++++++++++++++++++
>  1 file changed, 118 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/leds/cznic,turris1x-leds.yaml
> 
> diff --git a/Documentation/devicetree/bindings/leds/cznic,turris1x-leds.yaml b/Documentation/devicetree/bindings/leds/cznic,turris1x-leds.yaml
> new file mode 100644
> index 000000000000..bcaab5b03128
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/cznic,turris1x-leds.yaml
> @@ -0,0 +1,118 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/leds/cznic,turris1x-leds.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: CZ.NIC's Turris 1.x LEDs driver
> +
> +maintainers:
> +  - Pali Rohár <pali@...nel.org>
> +
> +description:
> +  This module adds support for the RGB LEDs found on the front panel of the
> +  Turris 1.x routers. There are 8 RGB LEDs that are controlled by CZ.NIC CPLD
> +  firmware running on Lattice FPGA. Firmware is open source and available at
> +  https://gitlab.nic.cz/turris/hw/turris_cpld/-/blob/master/CZ_NIC_Router_CPLD.v
> +
> +properties:
> +  compatible:
> +    const: cznic,turris1x-leds
> +
> +  reg:
> +    description: CPLD address range where LED registers are mapped
> +    maxItems: 1
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +patternProperties:
> +  "^multi-led@[0-7]$":
> +    type: object
> +    $ref: leds-class-multicolor.yaml#
> +    unevaluatedProperties: false
> +
> +    properties:
> +      reg:
> +        minimum: 0
> +        maximum: 7
> +
> +    required:
> +      - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/leds/common.h>
> +
> +    cpld@3,0 {
> +        #address-cells = <1>;
> +        #size-cells = <1>;
> +        ranges = <0x0 0x3 0x0 0x00020000>;
> +
> +        led-controller@13 {
> +            compatible = "cznic,turris1x-leds";
> +            reg = <0x13 0x1d>;
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +
> +            multi-led@0 {
> +                    reg = <0x0>;
You have some weird indentation here. In other places of DTS example it
is correct four spaces, so here should be four spaces as well.

Best regards,
Krzysztof