linux-hardening - Re: [PATCH 1/3] dt-bindings: leds: Add Silergy SY7802 flash LED

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Message-ID: <20240328185036.GA79266-robh@kernel.org>
Date: Thu, 28 Mar 2024 13:50:36 -0500
From: Rob Herring <robh@...nel.org>
To: André Apitzsch <git@...tzsch.eu>
Cc: Pavel Machek <pavel@....cz>, Lee Jones <lee@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Kees Cook <keescook@...omium.org>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	Bjorn Andersson <andersson@...nel.org>,
	Konrad Dybcio <konrad.dybcio@...aro.org>,
	linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	~postmarketos/upstreaming@...ts.sr.ht
Subject: Re: [PATCH 1/3] dt-bindings: leds: Add Silergy SY7802 flash LED

On Wed, Mar 27, 2024 at 11:51:33PM +0100, André Apitzsch wrote:
> Document Silergy SY7802 flash LED driver devicetree bindings.
> 
> Signed-off-by: André Apitzsch <git@...tzsch.eu>
> ---
>  .../devicetree/bindings/leds/silergy,sy7802.yaml   | 96 ++++++++++++++++++++++
>  1 file changed, 96 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/leds/silergy,sy7802.yaml b/Documentation/devicetree/bindings/leds/silergy,sy7802.yaml
> new file mode 100644
> index 000000000000..d32efac8baa6
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/silergy,sy7802.yaml
> @@ -0,0 +1,96 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/leds/silergy,sy7802.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Silergy SY7802 1800mA Boost Charge Pump LED Driver
> +
> +maintainers:
> +  - André Apitzsch <git@...tzsch.eu>
> +
> +description: |
> +  The SY7802 is a current-regulated charge pump which can regulate two current
> +  levels for Flash and Torch modes.
> +
> +  The SY7802 is a high-current synchronous boost converter with 2-channel
> +  high side current sources. Each channel is able to deliver 900mA current.
> +
> +properties:
> +  compatible:
> +    enum:
> +      - silergy,sy7802
> +
> +  reg:
> +    maxItems: 1
> +
> +  enable-gpios:
> +    maxItems: 1
> +    description: A connection to the 'EN' pin.
> +
> +  flash-gpios:
> +    maxItems: 1
> +    description: A connection to the 'FLEN' pin.
> +
> +  vin-supply:
> +    description: Regulator providing power to the 'VIN' pin.
> +
> +  "#address-cells":
> +    const: 1
> +
> +  "#size-cells":
> +    const: 0
> +
> +patternProperties:
> +  "^led@[0-1]$":
> +    type: object
> +    $ref: common.yaml#
> +    unevaluatedProperties: false
> +
> +    properties:
> +      reg:
> +        description: Index of the LED.
> +        minimum: 0
> +        maximum: 1
> +
> +      led-sources:
> +        allOf:

Don't need allOf here.

> +          - minItems: 1
> +            maxItems: 2
> +            items:
> +              minimum: 0
> +              maximum: 1
> +
> +    required:
> +      - reg
> +      - led-sources
> +
> +required:
> +  - compatible
> +  - reg
> +  - "#address-cells"
> +  - "#size-cells"
> +  - enable-gpios
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/gpio/gpio.h>
> +    #include <dt-bindings/leds/common.h>
> +
> +    flash-led-controller@53 {

This needs to go under an appropriate bus node to fix the errors. i2c 
presumably.

> +        compatible = "silergy,sy7802";
> +        reg = <0x53>;
> +        #address-cells = <1>;
> +        #size-cells = <0>;
> +
> +        enable-gpios = <&tlmm 16 GPIO_ACTIVE_HIGH>;
> +
> +        led@0 {
> +            reg = <0>;
> +            function = LED_FUNCTION_FLASH;
> +            color = <LED_COLOR_ID_WHITE>;
> +            led-sources = <0>, <1>;
> +        };
> +    };
> 
> -- 
> 2.44.0
>