linux-kernel - Re: [PATCH] arm64: dts: qcom: sa8775p: pmic: enable rtc

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Message-ID: <89228c85-9b0e-477f-9cb9-e775850b2eb0@quicinc.com>
Date: Fri, 22 Nov 2024 18:38:29 +0800
From: Tingguo Cheng <quic_tingguoc@...cinc.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, <andersson@...nel.org>,
        <konradybcio@...nel.org>, <robh@...nel.org>, <krzk+dt@...nel.org>,
        <conor+dt@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <kernel@...cinc.com>,
        <quic_kotarake@...cinc.com>, <quic_kamalw@...cinc.com>,
        <quic_skakitap@...cinc.com>, <quic_fenglinw@...cinc.com>
Subject: Re: [PATCH] arm64: dts: qcom: sa8775p: pmic: enable rtc



On 9/19/2024 10:23 AM, Tingguo Cheng wrote:
> 
> 
> On 9/6/2024 8:22 PM, Krzysztof Kozlowski wrote:
>> On 02/09/2024 12:43, Tingguo Cheng wrote:
>>> Add RTC node, the RTC is controlled by PMIC device via spmi bus.
>>>
>>> Signed-off-by: Tingguo Cheng <quic_tingguoc@...cinc.com>
>>> ---
>>>   arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi | 8 ++++++++
>>>   1 file changed, 8 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi b/arch/ 
>>> arm64/boot/dts/qcom/sa8775p-pmics.dtsi
>>> index 1369c3d43f86..47d05b897d5a 100644
>>> --- a/arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi
>>> +++ b/arch/arm64/boot/dts/qcom/sa8775p-pmics.dtsi
>>
>> We achieved consensus allowing sa8775p to stay, but now Qualcomm changes
>> point of view and insists on new approach of dropping sa8775p. Therefore
>> this change does not make much sense in the new approach.
>>
> The new approach(QCS9100+sa8775p compatible) will still use the same 
> PMIC chip(As usually, include sa8775p-pmics.dtsi as it's pmic part). 
> Therefore, from this point, it does make sense in the new approach.
>  From another point, for old boards, this change should have been there.
> 
>> Best regards,
>> Krzysztof
>>
> 
We have aligned this internally again, "sa8775p-pmics.dtsi" still 
continue to be used for qcs9100-ride. Can you help review/apply this
change? We need this RTC function in some boards.

-- 
Thank you & BRs
Tingguo