linux-kernel - Re: [PATCH 1/5] dt-bindings: memory: fsl: convert ifc binding to yaml schema

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Message-ID: <e42fa620-810b-fdcc-c827-602a14d10d97@canonical.com>
Date:   Mon, 4 Oct 2021 11:31:14 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Li Yang <leoyang.li@....com>
Cc:     Shawn Guo <shawnguo@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@...ts.infradead.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
        lkml <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/5] dt-bindings: memory: fsl: convert ifc binding to yaml
 schema

On 01/10/2021 18:17, Li Yang wrote:
> On Fri, Oct 1, 2021 at 5:01 AM Krzysztof Kozlowski
> <krzysztof.kozlowski@...onical.com> wrote:
>>

(...)

>>> +
>>> +  interrupts:
>>> +    minItems: 1
>>> +    maxItems: 2
>>> +    description: |
>>> +      IFC may have one or two interrupts.  If two interrupt specifiers are
>>> +      present, the first is the "common" interrupt (CM_EVTER_STAT), and the
>>> +      second is the NAND interrupt (NAND_EVTER_STAT).  If there is only one,
>>> +      that interrupt reports both types of event.
>>> +
>>> +  little-endian:
>>> +    $ref: '/schemas/types.yaml#/definitions/flag'
>>
>> type: boolean
> 
> It will not have a true or false value, but only present or not.  Is
> the boolean type taking care of this too?

boolean is for a property which does not accept values and true/false
depends on its presence.
See:
Documentation/devicetree/bindings/phy/lantiq,vrx200-pcie-phy.yaml
Documentation/devicetree/bindings/thermal/qoriq-thermal.yaml


Best regards,
Krzysztof