From: Dmitry Osipenko <digetx@gmail.com>
To: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Daniel Lezcano <daniel.lezcano@linaro.org>,
Nicolas Chauvet <kwizart@gmail.com>,
Matt Merhar <mattmerhar@protonmail.com>,
Peter Geis <pgwipeout@gmail.com>
Cc: linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 02/14] ARM: tegra: ventana: Support CPU thermal throttling
Date: Tue, 2 Mar 2021 15:09:51 +0300 [thread overview]
Message-ID: <20210302121003.15058-3-digetx@gmail.com> (raw)
In-Reply-To: <20210302121003.15058-1-digetx@gmail.com>
Enable CPU thermal throttling on Tegra20 Ventana board.
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
arch/arm/boot/dts/tegra20-ventana.dts | 41 +++++++++++++++++++++++++--
1 file changed, 39 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/tegra20-ventana.dts b/arch/arm/boot/dts/tegra20-ventana.dts
index 02b94ed722d0..99a356c1ccec 100644
--- a/arch/arm/boot/dts/tegra20-ventana.dts
+++ b/arch/arm/boot/dts/tegra20-ventana.dts
@@ -2,6 +2,7 @@
/dts-v1/;
#include <dt-bindings/input/input.h>
+#include <dt-bindings/thermal/thermal.h>
#include "tegra20.dtsi"
#include "tegra20-cpu-opp.dtsi"
#include "tegra20-cpu-opp-microvolt.dtsi"
@@ -528,9 +529,10 @@ ldo_rtc {
};
};
- temperature-sensor@4c {
+ nct1008: temperature-sensor@4c {
compatible = "onnn,nct1008";
reg = <0x4c>;
+ #thermal-sensor-cells = <1>;
};
};
@@ -614,11 +616,13 @@ cpus {
cpu0: cpu@0 {
cpu-supply = <&vdd_cpu>;
operating-points-v2 = <&cpu0_opp_table>;
+ #cooling-cells = <2>;
};
- cpu@1 {
+ cpu1: cpu@1 {
cpu-supply = <&vdd_cpu>;
operating-points-v2 = <&cpu0_opp_table>;
+ #cooling-cells = <2>;
};
};
@@ -716,4 +720,37 @@ sound {
<&tegra_car TEGRA20_CLK_CDEV1>;
clock-names = "pll_a", "pll_a_out0", "mclk";
};
+
+ thermal-zones {
+ cpu-thermal {
+ polling-delay-passive = <1000>; /* milliseconds */
+ polling-delay = <5000>; /* milliseconds */
+
+ thermal-sensors = <&nct1008 1>;
+
+ trips {
+ trip0: cpu-alert0 {
+ /* start throttling at 50C */
+ temperature = <50000>;
+ hysteresis = <200>;
+ type = "passive";
+ };
+
+ trip1: cpu-crit {
+ /* shut down at 60C */
+ temperature = <60000>;
+ hysteresis = <2000>;
+ type = "critical";
+ };
+ };
+
+ cooling-maps {
+ map0 {
+ trip = <&trip0>;
+ cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+ <&cpu1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+ };
+ };
+ };
+ };
};
--
2.29.2
next prev parent reply other threads:[~2021-03-02 13:01 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-02 12:09 [PATCH v3 00/14] NVIDIA Tegra ARM32 device-tree improvements Dmitry Osipenko
2021-03-02 12:09 ` [PATCH v3 01/14] ARM: tegra: ventana: Support CPU and Core voltage scaling Dmitry Osipenko
2021-03-02 12:09 ` Dmitry Osipenko [this message]
2021-03-02 12:09 ` [PATCH v3 03/14] ARM: tegra: cardhu: Support CPU frequency and voltage scaling on all board variants Dmitry Osipenko
2021-03-02 12:09 ` [PATCH v3 04/14] ARM: tegra: cardhu: Support CPU thermal throttling Dmitry Osipenko
2021-03-02 12:09 ` [PATCH v3 05/14] ARM: tegra: paz00: Enable full voltage scaling ranges for CPU and Core domains Dmitry Osipenko
2021-03-02 12:09 ` [PATCH v3 06/14] ARM: tegra: acer-a500: Enable core voltage scaling Dmitry Osipenko
2021-03-02 12:09 ` [PATCH v3 07/14] ARM: tegra: acer-a500: Reduce thermal throttling hysteresis to 0.2C Dmitry Osipenko
2021-03-02 12:09 ` [PATCH v3 08/14] ARM: tegra: acer-a500: Specify all CPU cores as cooling devices Dmitry Osipenko
2021-03-02 12:09 ` [PATCH v3 09/14] ARM: tegra: acer-a500: Rename avdd to vdda of touchscreen node Dmitry Osipenko
2021-03-24 15:11 ` Thierry Reding
2021-03-24 15:24 ` Dmitry Osipenko
2021-03-02 12:09 ` [PATCH v3 10/14] ARM: tegra: nexus7: Specify all CPU cores as cooling devices Dmitry Osipenko
2021-03-02 12:10 ` [PATCH v3 11/14] ARM: tegra: ouya: " Dmitry Osipenko
2021-03-02 12:10 ` [PATCH v3 12/14] ARM: tegra: Specify CPU suspend OPP in device-tree Dmitry Osipenko
2021-03-02 12:10 ` [PATCH v3 13/14] ARM: tegra: Specify memory " Dmitry Osipenko
2021-03-02 12:10 ` [PATCH v3 14/14] ARM: tegra: Specify tps65911 as wakeup source Dmitry Osipenko
2021-03-24 15:12 ` [PATCH v3 00/14] NVIDIA Tegra ARM32 device-tree improvements Thierry Reding
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