linux-kernel - Re: [PATCH 1/2] dt-bindings: remoteproc: qcom: adsp: add qcom,sdm845-slpi-pas compatible

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Date:   Mon, 27 Mar 2023 14:25:41 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Dylan Van Assche <me@...anvanassche.be>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        Manivannan Sadhasivam <mani@...nel.org>,
        linux-arm-msm@...r.kernel.org, linux-remoteproc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org
Subject: Re: [PATCH 1/2] dt-bindings: remoteproc: qcom: adsp: add
 qcom,sdm845-slpi-pas compatible

On 27/03/2023 13:39, Dylan Van Assche wrote:
> Hi Krzysztof,
> 
> On Sun, 2023-03-26 at 10:53 +0200, Krzysztof Kozlowski wrote:
>> On 25/03/2023 14:21, Dylan Van Assche wrote:
>>> SLPI DSP remoteproc on DSP is defined by the 'qcom,sdm845-slpi-pas'
>>> compatible in the qcom_q6v5_pas driver. Add this compatible to the
>>> devicetree bindings.
>>>
>>> Signed-off-by: Dylan Van Assche <me@...anvanassche.be>
>>> ---
>>>  Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml | 3
>>> +++
>>>  1 file changed, 3 insertions(+)
>>>
>>> diff --git
>>> a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
>>> b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
>>> index 643ee787a81f..175be01ecd1c 100644
>>> --- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
>>> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
>>> @@ -26,6 +26,7 @@ properties:
>>>        - qcom,sdm660-adsp-pas
>>>        - qcom,sdm845-adsp-pas
>>>        - qcom,sdm845-cdsp-pas
>>> +      - qcom,sdm845-slpi-pas
>>>  
>>>    reg:
>>>      maxItems: 1
>>> @@ -63,6 +64,7 @@ allOf:
>>>                - qcom,msm8998-adsp-pas
>>>                - qcom,sdm845-adsp-pas
>>>                - qcom,sdm845-cdsp-pas
>>> +              - qcom,sdm845-slpi-pas
>>>      then:
>>>        properties:
>>>          clocks:
>>> @@ -104,6 +106,7 @@ allOf:
>>
>>
>> You miss also if:then: for power-domains.
> 
> I am not sure what to put for the power-domains, 

Doesn't your driver patch clearly state it?

> newer remoteprocs from
> SM8150/SM8250/SM8350 etc. are not in this binding either.

They have their own binding, but why is it an argument to add
sdm845-slpi a bit incomplete?

> 
> Could you elaborate a bit here? Thanks!

There are already examples of other remoteprocs which do it, so I do not
understand why this one is different. What to elaborate more?

Best regards,
Krzysztof