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Date: Fri, 28 Apr 2023 22:49:34 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Varadarajan Narayanan <quic_varada@...cinc.com>
Cc: agross@...nel.org, andersson@...nel.org, konrad.dybcio@...aro.org,
amitk@...nel.org, thara.gopinath@...il.com, rafael@...nel.org,
daniel.lezcano@...aro.org, rui.zhang@...el.com, robh+dt@...nel.org,
krzysztof.kozlowski+dt@...aro.org, linux-arm-msm@...r.kernel.org,
linux-pm@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
Praveenkumar I <quic_ipkumar@...cinc.com>
Subject: Re: [PATCH 4/4] arm64: dts: qcom: ipq9574: add thermal zone nodes
On Fri, 28 Apr 2023 at 17:53, Varadarajan Narayanan
<quic_varada@...cinc.com> wrote:
>
> This patch adds thermal zone nodes for the various
> sensors present in IPQ9574
>
> Signed-off-by: Praveenkumar I <quic_ipkumar@...cinc.com>
> Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> ---
> arch/arm64/boot/dts/qcom/ipq9574.dtsi | 208 ++++++++++++++++++++++++++++++++++
> 1 file changed, 208 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/ipq9574.dtsi b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> index 7cd5bdb..a7cb2b4c 100644
> --- a/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> +++ b/arch/arm64/boot/dts/qcom/ipq9574.dtsi
> @@ -947,6 +947,214 @@
> };
> };
>
> + thermal_zones: thermal-zones {
> + tsens_tz_sensor3 {
Please provide sensible names for all thermal zones. Please follow the
examples in other DT files.
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 3>;
> +
> + trips {
> + cpu-critical {
> + temperature = <125000>;
Can it really go up to 125 °C?
> + hysteresis = <1000>;
> + type = "critical";
> + };
Please provide also a passive trip point, so that the passive cooling
can be engaged.
> + };
> + };
> +
> + tsens_tz_sensor4 {
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 4>;
> +
> + trips {
> + cpu-critical {
> + temperature = <125000>;
> + hysteresis = <1000>;
> + type = "critical";
> + };
> + };
> + };
> +
> + tsens_tz_sensor5 {
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 5>;
> +
> + trips {
> + cpu-critical {
> + temperature = <125000>;
> + hysteresis = <1000>;
> + type = "critical";
> + };
> + };
> + };
> +
> + tsens_tz_sensor6 {
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 6>;
> +
> + trips {
> + cpu-critical {
> + temperature = <125000>;
> + hysteresis = <1000>;
> + type = "critical";
> + };
> + };
> + };
> +
> + tsens_tz_sensor7 {
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 7>;
> +
> + trips {
> + cpu-critical {
> + temperature = <125000>;
> + hysteresis = <1000>;
> + type = "critical";
> + };
> + };
> + };
> +
> + tsens_tz_sensor8 {
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 8>;
> +
> + trips {
> + cpu-critical {
> + temperature = <125000>;
> + hysteresis = <1000>;
> + type = "critical";
> + };
> + };
> + };
> +
> + tsens_tz_sensor9 {
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 9>;
> +
> + trips {
> + cpu-critical {
> + temperature = <125000>;
> + hysteresis = <1000>;
> + type = "critical";
> + };
> + };
> + };
> +
> + tsens_tz_sensor10 {
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 10>;
> +
> + trips {
> + cpu-critical {
> + temperature = <120000>;
> + hysteresis = <10000>;
> + type = "critical";
> + };
> +
> + cpu-passive {
> + temperature = <110000>;
> + hysteresis = <1000>;
> + type = "passive";
> + };
> + };
> + };
> +
> + tsens_tz_sensor11 {
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 11>;
> +
> + trips {
> + cpu-critical {
> + temperature = <120000>;
> + hysteresis = <10000>;
> + type = "critical";
> + };
> +
> + cpu-passive {
> + temperature = <110000>;
> + hysteresis = <1000>;
> + type = "passive";
> + };
> + };
> + };
> +
> + tsens_tz_sensor12 {
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 12>;
> +
> + trips {
> + cpu-critical {
> + temperature = <120000>;
> + hysteresis = <10000>;
> + type = "critical";
> + };
> +
> + cpu-passive {
> + temperature = <110000>;
> + hysteresis = <1000>;
> + type = "passive";
> + };
> + };
> + };
> +
> + tsens_tz_sensor13 {
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 13>;
> +
> + trips {
> + cpu-critical {
> + temperature = <120000>;
> + hysteresis = <10000>;
> + type = "critical";
> + };
> +
> + cpu-passive {
> + temperature = <110000>;
> + hysteresis = <1000>;
> + type = "passive";
> + };
> + };
> + };
> +
> + tsens_tz_sensor14 {
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 14>;
> +
> + trips {
> + cpu-critical {
> + temperature = <125000>;
> + hysteresis = <1000>;
> + type = "critical";
> + };
> + };
> + };
> +
> + tsens_tz_sensor15 {
> + polling-delay-passive = <0>;
> + polling-delay = <0>;
> + thermal-sensors = <&tsens 15>;
> +
> + trips {
> + cpu-critical {
> + temperature = <125000>;
> + hysteresis = <1000>;
> + type = "critical";
> + };
> + };
> + };
> + };
> +
> timer {
> compatible = "arm,armv8-timer";
> interrupts = <GIC_PPI 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
> --
> 2.7.4
>
--
With best wishes
Dmitry
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