linux-kernel - Re: [PATCH 4/5] arm64: dts: qcom: r0q: enable hardware clocks

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Message-ID: <99D0B281-03A5-447E-A6BF-892C99829D0B@gmail.com>
Date: Sun, 05 Oct 2025 00:50:16 -0300
From: Eric Gonçalves <ghatto404@...il.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>,
 Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konradybcio@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
CC: devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/5] arm64: dts: qcom: r0q: enable hardware clocks



On September 25, 2025 10:09:48 AM GMT-03:00, Konrad Dybcio <konrad.dybcio@....qualcomm.com> wrote:
>On 9/20/25 3:46 AM, Eric Gonçalves wrote:
>> Enable the real-time clocks found in R0Q board.
>> 
>> Signed-off-by: Eric Gonçalves <ghatto404@...il.com>
>> ---
>>  arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts | 15 +++++++++++++++
>>  1 file changed, 15 insertions(+)
>> 
>> diff --git a/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts b/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts
>> index c1b0b21c0ec5..c088f1acf6ea 100644
>> --- a/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts
>> +++ b/arch/arm64/boot/dts/qcom/sm8450-samsung-r0q.dts
>> @@ -225,6 +225,21 @@ vol_up_n: vol-up-n-state {
>>  	};
>>  };
>>  
>> +&pmk8350_rtc {
>> +	nvmem-cells = <&rtc_offset>;
>> +	nvmem-cell-names = "offset";
>> +
>> +	status = "okay";
>> +};
>> +
>> +&pmk8350_sdam_2 {
>> +	status = "okay";
>> +
>> +	rtc_offset: rtc-offset@bc {
>
>Is this an offset you took from somewhere downstream?
>
>Generally you *really don't want to* poke at random SDAM cells,
>as they contain a lot of important settings (incl. battery/charging)
From another sm8450 device, I'm sure it's okay.
>
>Konrad