linux-kernel - Re: [PATCH v2] dt-bindings: mailbox: qcom-ipcc: Document the QCS9100 IPCC

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Message-ID: <52eb566b-f45b-4c6f-aee1-eda8486d6079@quicinc.com>
Date: Mon, 29 Jul 2024 18:20:59 +0800
From: Tengfei Fan <quic_tengfan@...cinc.com>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
CC: Jassi Brar <jassisinghbrar@...il.com>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, <kernel@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
Subject: Re: [PATCH v2] dt-bindings: mailbox: qcom-ipcc: Document the QCS9100
 IPCC



On 7/21/2024 4:52 PM, Manivannan Sadhasivam wrote:
> On Tue, Jul 09, 2024 at 10:01:47PM +0800, Tengfei Fan wrote:
>> Document the Inter-Processor Communication Controller on the QCS9100
>> Platform.
>> QCS9100 is drived from SA8775p. Currently, both the QCS9100 and SA8775p
>> platform use non-SCMI resource. In the future, the SA8775p platform will
>> move to use SCMI resources and it will have new sa8775p-related device
>> tree. Consequently, introduce "qcom,qcs9100-ipcc" to describe non-SCMI
>> based IPCC.
>>
>> Signed-off-by: Tengfei Fan <quic_tengfan@...cinc.com>
> 
> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> 
> - Mani

After considering the feedback provided on the subject, We have decided
to keep current SA8775p compatible and ABI compatibility in drivers.
Let's close this session and ignore the current patche here.
Thank you for your input.

> 
>> ---
>> Introduce support for the QCS9100 SoC device tree (DTSI) and the
>> QCS9100 RIDE board DTS. The QCS9100 is a variant of the SA8775p.
>> While the QCS9100 platform is still in the early design stage, the
>> QCS9100 RIDE board is identical to the SA8775p RIDE board, except it
>> mounts the QCS9100 SoC instead of the SA8775p SoC.
>>
>> The QCS9100 SoC DTSI is directly renamed from the SA8775p SoC DTSI, and
>> all the compatible strings will be updated from "SA8775p" to "QCS9100".
>> The QCS9100 device tree patches will be pushed after all the device tree
>> bindings and device driver patches are reviewed.
>>
>> The final dtsi will like:
>> https://lore.kernel.org/linux-arm-msm/20240703025850.2172008-3-quic_tengfan@quicinc.com/
>>
>> The detailed cover letter reference:
>> https://lore.kernel.org/linux-arm-msm/20240703025850.2172008-1-quic_tengfan@quicinc.com/
>> ---
>> Changes in v2:
>>    - Split huge patch series into different patch series according to
>>      subsytems
>>    - Update patch commit message
>>
>> prevous disscussion here:
>> [1] v1: https://lore.kernel.org/linux-arm-msm/20240703025850.2172008-1-quic_tengfan@quicinc.com/
>> ---
>>   Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml | 1 +
>>   1 file changed, 1 insertion(+)
>>
>> diff --git a/Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml b/Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml
>> index 05e4e1d51713..916c47fbc238 100644
>> --- a/Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml
>> +++ b/Documentation/devicetree/bindings/mailbox/qcom-ipcc.yaml
>> @@ -24,6 +24,7 @@ properties:
>>     compatible:
>>       items:
>>         - enum:
>> +          - qcom,qcs9100-ipcc
>>             - qcom,qdu1000-ipcc
>>             - qcom,sa8775p-ipcc
>>             - qcom,sc7280-ipcc
>>
>> ---
>> base-commit: 0b58e108042b0ed28a71cd7edf5175999955b233
>> change-id: 20240709-document_qcs9100_ipcc_compatible-f5f933d24098
>>
>> Best regards,
>> -- 
>> Tengfei Fan <quic_tengfan@...cinc.com>
>>
> 

-- 
Thx and BRs,
Tengfei Fan