linux-kernel - Re: [PATCH v4 1/2] dt-bindings: edac: al-mc-edac: Amazon's Annapurna Labs Memory Controller EDAC

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Message-ID: <20191011132904.GA15595@bogus>
Date:   Fri, 11 Oct 2019 08:29:04 -0500
From:   Rob Herring <robh@...nel.org>
To:     Talel Shenhar <talel@...zon.com>
Cc:     maz@...nel.org, mark.rutland@....com, arnd@...db.de, bp@...en8.de,
        mchehab@...nel.org, james.morse@....com, davem@...emloft.net,
        gregkh@...uxfoundation.org, paulmck@...ux.ibm.com,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-edac@...r.kernel.org, dwmw@...zon.co.uk,
        benh@...nel.crashing.org, hhhawa@...zon.com, ronenk@...zon.com,
        jonnyc@...zon.com, hanochu@...zon.com, amirkl@...zon.com,
        barakw@...zon.com
Subject: Re: [PATCH v4 1/2] dt-bindings: edac: al-mc-edac: Amazon's Annapurna
 Labs Memory Controller EDAC

On Thu, Oct 10, 2019 at 02:54:13PM +0300, Talel Shenhar wrote:
> Document Amazon's Annapurna Labs Memory Controller EDAC SoC binding.
> 
> Signed-off-by: Talel Shenhar <talel@...zon.com>
> ---
>  .../bindings/edac/amazon,al-mc-edac.yaml           | 50 ++++++++++++++++++++++
>  1 file changed, 50 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml
> 
> diff --git a/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml b/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml
> new file mode 100644
> index 00000000..f66b094
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.yaml
> @@ -0,0 +1,50 @@
> +# SPDX-License-Identifier: GPL-2.0

Forgot to mention, please make new bindings (GPL-2.0-only OR BSD-2-Clause).

> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/edac/amazon,al-mc-edac.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Amazon's Annapurna Labs Memory Controller EDAC
> +
> +maintainers:
> +  - Talel Shenhar <talel@...zon.com>
> +  - Talel Shenhar <talelshenhar@...il.com>
> +
> +description: |
> +  EDAC node is defined to describe on-chip error detection and correction for
> +  Amazon's Annapurna Labs Memory Controller.
> +
> +properties:
> +
> +  compatible:
> +    const: amazon,al-mc-edac
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 2
> +    items:
> +      - description: uncorrectable error interrupt
> +      - description: correctable error interrupt
> +
> +  interrupt-names:
> +    maxItems: 2
> +    items:
> +      - const: ue
> +      - const: ce

Now the example fails to build:

/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.example.dt.yaml: 
edac@...80000: interrupt-names: ['ue'] is too short
/builds/robherring/linux-dt-review/Documentation/devicetree/bindings/edac/amazon,al-mc-edac.example.dt.yaml: 
edac@...80000: interrupts: [[20, 4]] is too short

You either need to always have the CE irq or add 'minItems: 1' to both. 

> +
> +required:
> +  - compatible
> +  - reg
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    edac@...80000 {
> +      compatible = "amazon,al-mc-edac";
> +      reg = <0x0 0xf0080000 0x0 0x00010000>;
> +      interrupt-parent = <&amazon_al_system_fabric>;
> +      interrupt-names = "ue";
> +      interrupts = <20 IRQ_TYPE_LEVEL_HIGH>;
> +    };
> -- 
> 2.7.4
>