linux-kernel - Re: [PATCH 3/4] dt-bindings: power: reset: convert nvmem-reboot-mode bindings to YAML

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Date:   Sun, 16 Apr 2023 17:20:05 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Bartosz Golaszewski <brgl@...ev.pl>,
        Sebastian Reichel <sre@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>
Cc:     linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [PATCH 3/4] dt-bindings: power: reset: convert nvmem-reboot-mode
 bindings to YAML

On 13/04/2023 15:17, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> Convert the DT binding document for nvmem-reboot-mode from .txt to YAML.

Thank you for your patch. There is something to discuss/improve.

> diff --git a/Documentation/devicetree/bindings/power/reset/nvmem-reboot-mode.yaml b/Documentation/devicetree/bindings/power/reset/nvmem-reboot-mode.yaml
> new file mode 100644
> index 000000000000..64a7d224c7dd
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/reset/nvmem-reboot-mode.yaml
> @@ -0,0 +1,52 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/power/reset/nvmem-reboot-mode.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Generic NVMEM reboot mode driver

Drop "driver".
> +
> +maintainers:
> +  - Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> +
> +description: |

Do not need '|' unless you need to preserve formatting.

> +  This driver gets the reboot mode magic value from the reboot-mode driver
> +  and stores it in the NVMEM cell named "reboot-mode". The bootloader can
> +  then read it and take different action according to the value.
> +
> +properties:
> +  compatible:
> +    const: nvmem-reboot-mode
> +
> +  nvmem-cells:
> +    description: |

Do not need '|' unless you need to preserve formatting.

> +      A phandle pointing to the nvmem-cells node where the vendor-specific
> +      magic value representing the reboot mode is stored.
> +    maxItems: 1
> +
> +  nvmem-cell-names:
> +    items:
> +      - const: reboot-mode
> +
> +patternProperties:
> +  "^mode-.+":
> +    $ref: /schemas/types.yaml#/definitions/uint32
> +    description: Vendor-specific mode value written to the mode register
> +
> +additionalProperties: false
> +
> +required:
> +  - compatible
> +  - nvmem-cells
> +  - nvmem-cell-names

put required: before additionalProperties

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof