linux-kernel - Re: [PATCH v1 2/2] arm64: dts: qcom: Enable TSENS support for QCS615 SoC

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Message-ID: <46cd600e-b388-4225-a839-a6af76524efe@quicinc.com>
Date: Mon, 14 Apr 2025 13:58:12 +0530
From: Gaurav Kohli <quic_gkohli@...cinc.com>
To: Konrad Dybcio <konrad.dybcio@....qualcomm.com>, <amitk@...nel.org>,
        <rafael@...nel.org>, <daniel.lezcano@...aro.org>,
        <rui.zhang@...el.com>, <lukasz.luba@....com>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <andersson@...nel.org>, <konradybcio@...nel.org>
CC: <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-msm@...r.kernel.org>, <quic_manafm@...cinc.com>
Subject: Re: [PATCH v1 2/2] arm64: dts: qcom: Enable TSENS support for QCS615
 SoC

thanks for review!

On 4/12/2025 5:13 AM, Konrad Dybcio wrote:
> On 4/10/25 4:00 PM, Gaurav Kohli wrote:
>> Add TSENS and thermal devicetree node for QCS615 SoC.
>>
>> Signed-off-by: Gaurav Kohli <quic_gkohli@...cinc.com>
>> ---
> 
> subject: "arm64: dts: qcom: qcs615: ..">  arch/arm64/boot/dts/qcom/qcs615.dtsi | 281 +++++++++++++++++++++++++++
>>   1 file changed, 281 insertions(+)
>>
will fix this.
>> diff --git a/arch/arm64/boot/dts/qcom/qcs615.dtsi b/arch/arm64/boot/dts/qcom/qcs615.dtsi
>> index edfb796d8dd3..f0d8aed7da29 100644
>> --- a/arch/arm64/boot/dts/qcom/qcs615.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/qcs615.dtsi
>> @@ -3668,6 +3668,17 @@ usb_2_dwc3: usb@...0000 {
>>   				maximum-speed = "high-speed";
>>   			};
>>   		};
>> +
>> +		tsens0: tsens@...2000 {
>> +			compatible = "qcom,qcs615-tsens", "qcom,tsens-v2";
>> +			reg = <0x0 0xc263000 0x0 0x1ff>,
>> +				<0x0 0xc222000 0x0 0x8>;
> Pad the address part to 8 hex digits with leading zeroes> +			interrupts = <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>,
> 
> &pdc 26
> 
>> +					<GIC_SPI 508 IRQ_TYPE_LEVEL_HIGH>;
> 
> &pdc 28
we don't want to mark this as wake up capable, so using this approach.
> 
> Please align the <s
> 
>> +			#qcom,sensors = <16>;
>> +			interrupt-names = "uplow", "critical";
> 
> it would make sense for interrupt-names to come right under interrupts
yes, will update in next patch set.
>> +			#thermal-sensor-cells = <1>;
>> +		};
>>   	};
>>   
>>   	arch_timer: timer {
>> @@ -3677,4 +3688,274 @@ arch_timer: timer {
>>   			     <GIC_PPI 3 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,
>>   			     <GIC_PPI 0 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>;
>>   	};
>> +
>> +	thermal-zones {
>> +		aoss-thermal {
>> +			thermal-sensors = <&tsens0 0>;
>> +
>> +			trips {
>> +
>> +				trip-point0 {
>> +					temperature = <110000>;
>> +					hysteresis = <5000>;
>> +					type = "passive";
>> +				};
>> +			};
>> +		};
>> +
>> +		cpuss-0-thermal {
>> +			thermal-sensors = <&tsens0 1>;
>> +
>> +			trips {
>> +
>> +				trip-point0 {
>> +					temperature = <115000>;
>> +					hysteresis = <5000>;
>> +					type = "passive";
>> +				};
>> +
>> +				trip-point1 {
>> +					temperature = <118000>;
>> +					hysteresis = <5000>;
>> +					type = "passive";
>> +				};
> 
> Please drop the passive trip point for the *CPU* tzones, see
> 

we are using trip-point 0 for cpu idle injection mitigation which i will 
add in subsequent patches, if you are fine i will add cpu idle injection 
cooling map in this series only ?
> commit 06eadce936971dd11279e53b6dfb151804137836
> ("arm64: dts: qcom: x1e80100: Drop unused passive thermal trip points for CPU")
> 
> and add a single critical point instead, see
> 
As critical shutdown is already supported by hardware, so we are not 
defining here.
> commit 03f2b8eed73418269a158ccebad5d8d8f2f6daa1
> ("arm64: dts: qcom: x1e80100: Apply consistent critical thermal shutdown")
> 
> Konrad