linux-kernel - Re: [PATCH v4 2/7] dt-bindings: memory: lpddr2: Convert to schema

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Message-ID: <0edef6e7-ea59-9919-d03a-0a5cd2a83a21@gmail.com>
Date:   Wed, 6 Oct 2021 20:31:59 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-tegra@...r.kernel.org
Subject: Re: [PATCH v4 2/7] dt-bindings: memory: lpddr2: Convert to schema

06.10.2021 20:23, Krzysztof Kozlowski пишет:
> On 06/10/2021 17:44, Dmitry Osipenko wrote:
>> 06.10.2021 18:41, Dmitry Osipenko пишет:
>>> 06.10.2021 13:57, Krzysztof Kozlowski пишет:
>>>>> +  density:
>>>>> +    description: |
>>>>> +      Density in megabits of SDRAM chip. Obtained from device datasheet.
>>>> You need here a type/ref, so uint32.
>>>>
>>>
>>> The type is uint32 by default. I can add it, but it's not really necessary.
>>>
>>
>> You may grep bindings for 'enum: [' to see that nobody is specifying the
>> type.
>>
> 
> Just because everyone makes a mistake, is not a proof it should be done
> like that. Please see example schema and vendor,int-property.
> 
> AFAIR, only properties defined by schema (directly or by unit suffix,
> e.g. microvolt) do not need types.

I'm not DT expert, but dt_binding_check says that binding is valid, even
with W=1. Meanwhile negative values are wrong. All integers are u32 by
default for DTB.

Alright, I'll just add the type since it won't hurt anyways.