linux-kernel - Re: [PATCH 4/4] arm64: dts: qcom: sa8775p-ride: Add QCS9100 compatible

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Message-ID: <0d1c44b9-3d5f-4d93-af64-1756e52f4fe3@quicinc.com>
Date: Mon, 12 Aug 2024 10:16:51 +0800
From: Tingwei Zhang <quic_tingweiz@...cinc.com>
To: Krzysztof Kozlowski <krzk@...nel.org>,
        Tengfei Fan
	<quic_tengfan@...cinc.com>,
        Bjorn Andersson <andersson@...nel.org>,
        "Konrad
 Dybcio" <konrad.dybcio@...aro.org>,
        Rob Herring <robh@...nel.org>,
        "Krzysztof
 Kozlowski" <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>
CC: <kernel@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/4] arm64: dts: qcom: sa8775p-ride: Add QCS9100
 compatible

On 8/8/2024 7:05 PM, Krzysztof Kozlowski wrote:
> On 07/08/2024 13:04, Tingwei Zhang wrote:
>> On 8/7/2024 5:35 PM, Krzysztof Kozlowski wrote:
>>> On 07/08/2024 11:17, Tengfei Fan wrote:
>>>>
>>>>
>>>> On 8/7/2024 3:28 PM, Krzysztof Kozlowski wrote:
>>>>> On 06/08/2024 06:19, Tengfei Fan wrote:
>>>>>> Add QCS9100 compatible in sa8775p ride and sa8775p ride r3 board DTS.
>>>>>> QCS9100 references SA8775p, they share the same SoC DTSI and board DTS.
>>>>>>
>>>>>
>>>>> I don't understand this. You claim here that QCS9100 references SA8775p
>>>>> but your diff says other way: SA8775p references QCS9100.
>>>>>
>>>>> Sorry, that's confusing.
>>>>>
>>>>> Best regards,
>>>>> Krzysztof
>>>>>
>>>>
>>>> I will update the compatible as follows to indicate that QCS9100
>>>> references SA8775p.
>>>>
>>>> compatible = "qcom,sa8775p-ride", "qcom,qcs9100", "qcom,sa8775p";
>>>
>>> Is this still correct, though? sa8775p won't come with qcs9100 SoC.
>> We have a new board. Hardware is same as sa877p-ride except sa8775p is
>> replaced with qcs9100. We add qcs9100 SoC compatible to sa8775p-ride
> 
> Does "new board" mean that "old board" disappears? No users to care
> about it? Or just the existing board is being changed (like new revision)?

We will support both boards. Sa8775p-ride board with sa8775p chipset and 
sa8775p-ride board with qcs9100 chipset. Both of them can be used for 
development.
> 
> Best regards,
> Krzysztof
> 

-- 
Thanks,
Tingwei