Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Date:   Fri, 13 Mar 2020 08:06:20 -0500
From:   Rob Herring <robh@kernel.org>
To:     Nicolas Belin <nbelin@baylibre.com>
Cc:     linux-kernel@vger.kernel.org, linux-leds@vger.kernel.org,
        jacek.anaszewski@gmail.com, pavel@ucw.cz, dmurphy@ti.com,
        devicetree@vger.kernel.org, baylibre-upstreaming@groups.io
Subject: Re: [PATCH v3 2/3] dt-bindings: leds: Shiji Lighting APA102C LED
Message-ID: <20200313130620.GA19369@bogus>
References: <1583502010-16210-1-git-send-email-nbelin@baylibre.com>
 <1583502010-16210-3-git-send-email-nbelin@baylibre.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <1583502010-16210-3-git-send-email-nbelin@baylibre.com>
User-Agent: Mutt/1.10.1 (2018-07-13)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Fri, Mar 06, 2020 at 02:40:09PM +0100, Nicolas Belin wrote:
> Document Shiji Lighting APA102C LED driver device tree bindings.
> 
> Signed-off-by: Nicolas Belin <nbelin@baylibre.com>
> ---
>  .../devicetree/bindings/leds/leds-apa102c.yaml     | 97 ++++++++++++++++++++++
>  1 file changed, 97 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/leds/leds-apa102c.yaml
> 
> diff --git a/Documentation/devicetree/bindings/leds/leds-apa102c.yaml b/Documentation/devicetree/bindings/leds/leds-apa102c.yaml
> new file mode 100644
> index 000000000000..21457fc3762d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-apa102c.yaml
> @@ -0,0 +1,97 @@
> +# SPDX-License-Identifier: GPL-2.0

Dual license new bindings:

(GPL-2.0-only OR BSD-2-Clause)

> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/leds/leds-apa102c.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: LED driver for Shiji Lighting - APA102C
> +
> +maintainers:
> +  - Nicolas Belin <nbelin@baylibre.com>
> +
> +description:
> +  Each RGB LED is represented as a rgb-led sub-node of the leds-apa102c
> +  device.  Each LED is a three color rgb LED with an additional 32 levels
> +  brightness adjustment. They can be cascaded so that multiple LEDs can be set
> +  with a single command.
> +
> +properties:
> +  compatible:
> +    const: shiji,apa102c
> +
> +  reg:
> +    maxItems: 1
> +
> +  spi-max-frequency:
> +    maximum: 1000000
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +patternProperties:
> +  "^rgb-led@[0-9]+$":
> +    type: object
> +    description: |
> +      Array of connected RGB LEDs.

This should reference leds/common.yaml:

allOf:
  - $ref: common.yaml#

> +
> +    properties:
> +      reg:
> +        description: |
> +          This property corresponds to the led index. It has to be between 0
> +          and the number of managed leds minus 1
> +        maxItems: 1
> +
> +      label:
> +        description: |
> +          This property corresponds to the name of the RGB led.
> +        maxItems: 1
> +
> +      linux,default-trigger: true
> +
> +      "#address-cells":
> +        const: 1
> +
> +      "#size-cells":
> +        const: 0
> +
> +    required:
> +      - reg
> +      - label
> +      - '#address-cells'
> +      - '#size-cells'
> +
> +required:
> +  - compatible
> +  - reg
> +  - spi-max-frequency
> +  - '#address-cells'
> +  - '#size-cells'

Add:

additionalProperties: false

> +
> +examples:
> +  - |
> +    spi {
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +        led-controller@0 {
> +            compatible = "shiji,apa102c";
> +            reg = <0>;
> +            spi-max-frequency = <1000000>;
> +            #address-cells = <1>;
> +            #size-cells = <0>;
> +            rgb-led@0 {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +                reg = <0>;
> +                label = "rgb_led1";
> +            };
> +            rgb-led@1 {
> +                #address-cells = <1>;
> +                #size-cells = <0>;
> +                reg = <1>;
> +                label = "rgb_led2";
> +            };
> +        };
> +    };
> -- 
> 2.7.4
>