linux-kernel - Re: [PATCH 1/4] dt-bindings: remoteproc: qcom: adsp: document sm8550 adsp, cdsp & mpss compatible

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Date:   Thu, 17 Nov 2022 10:02:22 +0100
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Andy Gross <agross@...nel.org>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Amol Maheshwari <amahesh@....qualcomm.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        devicetree@...r.kernel.org, Abel Vesa <abel.vesa@...aro.org>,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-remoteproc@...r.kernel.org
Subject: Re: [PATCH 1/4] dt-bindings: remoteproc: qcom: adsp: document sm8550
 adsp, cdsp & mpss compatible

On 17/11/2022 00:39, Rob Herring wrote:
> On Wed, Nov 16, 2022 at 01:28:11PM +0100, Krzysztof Kozlowski wrote:
>> On 16/11/2022 11:20, Neil Armstrong wrote:
>>> This documents the compatible for the component used to boot the
>>> aDSP, cDSP and MPSS on the SM8550 SoC.
>>>
>>> The SM8550 boot process on SM8550 now requires a secondary "Devicetree"
>>> firmware to be passed along the main Firmware, and the cDSP a new power
>>> domain named "NSP".
>>>
>>> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
>>> ---
>>>   .../devicetree/bindings/remoteproc/qcom,adsp.yaml  | 60 +++++++++++++++++++++-
>>>   1 file changed, 59 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
>>> index db9e0f0c2bea..678cb73f10de 100644
>>> --- a/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
>>> +++ b/Documentation/devicetree/bindings/remoteproc/qcom,adsp.yaml
>>> @@ -55,6 +55,9 @@ properties:
>>>         - qcom,sm8450-cdsp-pas
>>>         - qcom,sm8450-mpss-pas
>>>         - qcom,sm8450-slpi-pas
>>> +      - qcom,sm8550-adsp-pas
>>> +      - qcom,sm8550-cdsp-pas
>>> +      - qcom,sm8550-mpss-pas
>>>   
>>>     reg:
>>>       maxItems: 1
>>> @@ -116,8 +119,13 @@ properties:
>>>       $ref: /schemas/types.yaml#/definitions/string
>>>       description: Firmware name for the Hexagon core
>>>   
>>> +  qcom,dtb-firmware-name:
>>> +    $ref: /schemas/types.yaml#/definitions/string
>>> +    description: Devicetree Firmware name for the Hexagon core
>>
>> Not sure about this one.
>>
>> Rob,
>> Don't we want rather to have multiple items in firmware-name?
> 
> Yes, I think we already have that for some users. Should have been
> 'firmware-names' I guess but I don't think it's worth dealing with
> another case of handling both (forever).

I'll be happy to switch to a single property but yeah, firmware-name isn't right
for multiple names...

Anyway, will follow qcom,sc7180-mss-pil.yaml since they already use 2 entries there.

Neil

> 
> Rob