linux-kernel - Re: [PATCH v5 1/2] dt-bindings: dma: Add Loongson-1 DMA

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Date:   Sun, 8 Oct 2023 13:15:09 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Keguang Zhang <keguang.zhang@...il.com>,
        Conor Dooley <conor@...nel.org>
Cc:     dmaengine@...r.kernel.org, devicetree@...r.kernel.org,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        Vinod Koul <vkoul@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Subject: Re: [PATCH v5 1/2] dt-bindings: dma: Add Loongson-1 DMA

On 07/10/2023 07:45, Keguang Zhang wrote:

> 
>>> +  Loongson-1 DMA controller provides 3 independent channels for
>>> +  peripherals such as NAND and AC97.
>>> +
>>> +properties:
>>> +  compatible:
>>> +    enum:
>>> +      - loongson,ls1b-dma
>>> +      - loongson,ls1c-dma
>>
>> From a skim of the driver, these two devices seem to be compatible,
>> and therefore one should fall back to the other.
>>
> Got it. How about changing to one const?
>   compatible:
>     const: loongson,ls1-dma

No, because there is no fallback here.


Best regards,
Krzysztof