linux-kernel - Re: [PATCH V6 7/9] dt-bindings: firmware: qcom,scm: document IPQ5332 SCM

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Message-ID: <2d1661fe-92bd-a117-27a5-cf1803ce363f@linaro.org>
Date:   Wed, 8 Mar 2023 16:44:32 +0100
From:   Konrad Dybcio <konrad.dybcio@...aro.org>
To:     Kathiravan T <quic_kathirav@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, mturquette@...libre.com,
        sboyd@...nel.org, catalin.marinas@....com, will@...nel.org,
        arnd@...db.de, dmitry.baryshkov@...aro.org,
        geert+renesas@...der.be, nfraprado@...labora.com,
        broonie@...nel.org, rafal@...ecki.pl, robimarko@...il.com,
        quic_gurus@...cinc.com, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH V6 7/9] dt-bindings: firmware: qcom,scm: document IPQ5332
 SCM



On 8.03.2023 16:39, Kathiravan T wrote:
> 
> On 3/8/2023 4:31 PM, Konrad Dybcio wrote:
>>
>> On 7.03.2023 07:22, Kathiravan T wrote:
>>> Document the compatible for IPQ5332 SCM.
>>>
>>> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
>>> Signed-off-by: Kathiravan T <quic_kathirav@...cinc.com>
>>> ---
>> Does this board not have a crypto engine / CE1 clock exposed via
>> RPMCC? It will be enabled by default, but Linux should be aware
>> of it, so that we don't gate it by accident.
> 
> 
> IPQ5332 doesn't have the crypto engine and also it doesn't have RPMCC. Sorry, could you please help to explain how it is related to SCM?
SCM usually requires certain clocks to be up and that often includes
the CE1 clock on fairly recent designs.

Konrad
> 
> Thanks, Kathiravan T.