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Message-ID: <ZnQmFFq/lCm63yuL@linaro.org>
Date: Thu, 20 Jun 2024 15:52:36 +0300
From: Abel Vesa <abel.vesa@...aro.org>
To: Konrad Dybcio <konrad.dybcio@...aro.org>
Cc: Bjorn Andersson <andersson@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Rajendra Nayak <quic_rjendra@...cinc.com>
Subject: Re: [PATCH v2] arm64: dts: qcom: x1e80100: Enable tsens and thermal
zone nodes
On 24-06-18 13:06:34, Konrad Dybcio wrote:
>
>
> On 6/14/24 12:50, Abel Vesa wrote:
> > From: Rajendra Nayak <quic_rjendra@...cinc.com>
> >
> > Add tsens and thermal zones nodes for x1e80100 SoC.
> >
> > Signed-off-by: Rajendra Nayak <quic_rjendra@...cinc.com>
> > Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
> > ---
>
> [...]
>
> > + tsens0: thermal-sensor@...1000 {
> > + compatible = "qcom,x1e80100-tsens", "qcom,tsens-v2";
> > + reg = <0 0x0c271000 0 0x1000>,
> > + <0 0x0c222000 0 0x1000>;
> > +
> > + interrupts = <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>,
> > + <GIC_SPI 641 IRQ_TYPE_LEVEL_HIGH>;
>
> These are normally wired up through PDC so that the system can shut down
> even if CPUSS is off
The upper-lower one is wired through PDC, but the critical doesn't seem
it is.
>
> [...]
>
> > + cpu0-0-top-thermal {
> > + thermal-sensors = <&tsens0 1>;
>
> Here you have passive trip points with no passive polling, this will
> only report threshold crossing events (so e.g. cpufreq throttling will
> be broken)
>
Sure, will add with 250 value for all cpu per-core sensors.
> > +
> > + trips {
> > + trip-point0 {
> > + temperature = <90000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > +
> > + trip-point1 {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > +
> > + cpu-critical {
> > + temperature = <110000>;
> > + hysteresis = <1000>;
> > + type = "critical";
> > + };
> > + };
> > + };
> > +
>
> [...]
>
>
> > +
> > + nsp1-thermal {
> > + polling-delay-passive = <10>;
>
> Here you have passive polling, but no passive trip point
>
Will drop the passive polling delay..
> > +
> > + thermal-sensors = <&tsens3 2>;
> > +
> > + trips {
> > + trip-point0 {
> > + temperature = <90000>;
> > + hysteresis = <2000>;
> > + type = "hot";
> > + };
> > +
> > + nsp1-critical {
> > + temperature = <125000>;
> > + hysteresis = <0>;
> > + type = "critical";
> > + };
> > + };
> > + };
>
>
> The rest looks okayish
>
> Konrad
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