linux-kernel - Re: [PATCH 1/2] dt-bindings: crypto: qcom,prng: document SM8550

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Date:   Tue, 22 Aug 2023 17:28:56 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Om Prakash Singh <quic_omprsing@...cinc.com>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Vinod Koul <vkoul@...nel.org>
Cc:     linux-arm-msm@...r.kernel.org, linux-crypto@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: crypto: qcom,prng: document SM8550

On 22/08/2023 16:54, Om Prakash Singh wrote:
> PRNG Block on most of newer target from Qualcomm have some configuration 
> where clock is configured by security firmware.
> 
> Adding separate compatible string for each platform is overhead.

I don't think PRNG is here different than others and for all others we
expect it. I understand that this is an overhead, like every work is
overhead.

> 
> We need to introduce common compatible string that can be used for all 
> platforms with same configuration.

It is already introduced, isn't it?

> 
> I would suggest to use "qcom,rng-ee" for newer platform, dropping "p" 
> also signifies it is not a Pseudo Random Number Generator.
> 

Best regards,
Krzysztof