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Date: Wed, 20 Feb 2019 15:10:07 +0530
From: Amit Kucheria <amit.kucheria@...aro.org>
To: Eduardo Valentin <edubezval@...il.com>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
linux-arm-msm <linux-arm-msm@...r.kernel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Andy Gross <andy.gross@...aro.org>,
Daniel Lezcano <daniel.lezcano@...aro.org>,
David Brown <david.brown@...aro.org>,
Zhang Rui <rui.zhang@...el.com>,
DTML <devicetree@...r.kernel.org>
Subject: Re: [PATCH v1 23/24] arm64: dts: qcom: qcs404: Add thermal zones for
each sensor
On Wed, Feb 20, 2019 at 6:39 AM Eduardo Valentin <edubezval@...il.com> wrote:
>
> On Thu, Feb 07, 2019 at 04:19:41PM +0530, Amit Kucheria wrote:
> > qcs404 has 10 sensors connected to the single TSENS IP. Define a thermal
> > zone for each of those sensors to expose the temperature of each zone.
> >
> > Signed-off-by: Amit Kucheria <amit.kucheria@...aro.org>
> > ---
> > arch/arm64/boot/dts/qcom/qcs404.dtsi | 243 +++++++++++++++++++++++++++
> > 1 file changed, 243 insertions(+)
> >
> > diff --git a/arch/arm64/boot/dts/qcom/qcs404.dtsi b/arch/arm64/boot/dts/qcom/qcs404.dtsi
> > index 57d14d8f0c90..ca99c45864df 100644
> > --- a/arch/arm64/boot/dts/qcom/qcs404.dtsi
> > +++ b/arch/arm64/boot/dts/qcom/qcs404.dtsi
> > @@ -3,6 +3,7 @@
> >
> > #include <dt-bindings/interrupt-controller/arm-gic.h>
> > #include <dt-bindings/clock/qcom,gcc-qcs404.h>
> > +#include <dt-bindings/thermal/thermal.h>
> >
> > / {
> > interrupt-parent = <&intc>;
> > @@ -30,6 +31,7 @@
> > reg = <0x100>;
> > enable-method = "psci";
> > next-level-cache = <&L2_0>;
> > + #cooling-cells= <2>;
> > };
> >
> > CPU1: cpu@101 {
> > @@ -38,6 +40,7 @@
> > reg = <0x101>;
> > enable-method = "psci";
> > next-level-cache = <&L2_0>;
> > + #cooling-cells= <2>;
> > };
> >
> > CPU2: cpu@102 {
> > @@ -46,6 +49,7 @@
> > reg = <0x102>;
> > enable-method = "psci";
> > next-level-cache = <&L2_0>;
> > + #cooling-cells= <2>;
> > };
> >
> > CPU3: cpu@103 {
> > @@ -54,6 +58,7 @@
> > reg = <0x103>;
> > enable-method = "psci";
> > next-level-cache = <&L2_0>;
> > + #cooling-cells= <2>;
> > };
> >
> > L2_0: l2-cache {
> > @@ -507,4 +512,242 @@
> > #interrupt-cells = <2>;
> > };
> > };
> > +
> > + thermal-zones {
>
> There are several zones with passive trips and no cooling maps.
Indeed. The policy bits are still a WIP and in some cases the
throttling is handled by someone in userspace. But I'd like to expose
at least the temperatures at each of the sensors to make it easier for
others to use this information. See my reply to the cover letter.
Regards,
Amit
> > + aoss-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <1000>;
> > +
> > + thermal-sensors = <&tsens 0>;
> > +
> > + trips {
> > + aoss_alert0: trip-point@0 {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > + aoss_crit: aoss_crit {
> > + temperature = <110000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + };
> > +
> > + dsp-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <1000>;
> > +
> > + thermal-sensors = <&tsens 1>;
> > +
> > + trips {
> > + dsp_alert0: trip-point@0 {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > + dsp_crit: dsp_crit {
> > + temperature = <110000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + };
> > +
> > + lpass-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <1000>;
> > +
> > + thermal-sensors = <&tsens 2>;
> > +
> > + trips {
> > + lpass_alert0: trip-point@0 {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > + lpass_crit: lpass_crit {
> > + temperature = <110000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + };
> > +
> > + wlan-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <1000>;
> > +
> > + thermal-sensors = <&tsens 3>;
> > +
> > + trips {
> > + wlan_alert0: trip-point@0 {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > + wlan_crit: wlan_crit {
> > + temperature = <110000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + };
> > +
> > + cluster-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <1000>;
> > +
> > + thermal-sensors = <&tsens 4>;
> > +
> > + trips {
> > + cluster_alert0: trip-point@0 {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > + cluster_crit: cluster_crit {
> > + temperature = <110000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + };
> > +
> > + cpu0-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <1000>;
> > +
> > + thermal-sensors = <&tsens 5>;
> > +
> > + trips {
> > + cpu0_alert0: trip-point@0 {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > + cpu0_crit: cpu_crit {
> > + temperature = <110000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + cooling-maps {
> > + map0 {
> > + trip = <&cpu0_alert0>;
> > + cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> > + };
> > + };
> > + };
> > +
> > + cpu1-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <1000>;
> > +
> > + thermal-sensors = <&tsens 6>;
> > +
> > + trips {
> > + cpu1_alert0: trip-point@0 {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > + cpu1_crit: cpu_crit {
> > + temperature = <110000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + cooling-maps {
> > + map0 {
> > + trip = <&cpu1_alert0>;
> > + cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> > + };
> > + };
> > + };
> > +
> > + cpu2-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <1000>;
> > +
> > + thermal-sensors = <&tsens 7>;
> > +
> > + trips {
> > + cpu2_alert0: trip-point@0 {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > + cpu2_crit: cpu_crit {
> > + temperature = <110000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + cooling-maps {
> > + map0 {
> > + trip = <&cpu2_alert0>;
> > + cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> > + };
> > + };
> > + };
> > +
> > + cpu3-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <1000>;
> > +
> > + thermal-sensors = <&tsens 8>;
> > +
> > + trips {
> > + cpu3_alert0: trip-point@0 {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > + cpu3_crit: cpu_crit {
> > + temperature = <110000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + cooling-maps {
> > + map0 {
> > + trip = <&cpu3_alert0>;
> > + cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
> > + <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
> > + };
> > + };
> > + };
> > +
> > + gpu-thermal {
> > + polling-delay-passive = <250>;
> > + polling-delay = <1000>;
> > +
> > + thermal-sensors = <&tsens 9>;
> > +
> > + trips {
> > + gpu_alert0: trip-point@0 {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "passive";
> > + };
> > + gpu_crit: gpu_crit {
> > + temperature = <95000>;
> > + hysteresis = <2000>;
> > + type = "critical";
> > + };
> > + };
> > + };
> > + };
> > };
> > --
> > 2.17.1
> >
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