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arm64: dts: ti: k3-am62p-j722s: Enable freq throttling on thermal alert

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Enable throttling down the CPU frequency when an alert temperature
threshold is reached before the critical temperature for shutdown.

Signed-off-by: João Paulo Gonçalves <joao.goncalves@toradex.com>
Link: https://lore.kernel.org/r/20250623-b4-verdin-am62p-cooling-device-v1-1-cc185ba5843d@toradex.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
This commit is contained in:
João Paulo Gonçalves 2025-06-23 13:12:26 -03:00 committed by Vignesh Raghavendra
parent 387727d7e5
commit f02dccbe96
3 changed files with 59 additions and 0 deletions
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51
arch/arm64/boot/dts/ti/k3-am62p-j722s-common-thermal.dtsi
View File

@ -12,12 +12,29 @@ main0_thermal: main0-thermal {
thermal-sensors = <&wkup_vtm0 0>;
trips {
main0_alert: main0-alert {
temperature = <115000>;
hysteresis = <2000>;
type = "passive";
};
main0_crit: main0-crit {
temperature = <125000>; /* milliCelsius */
hysteresis = <2000>; /* milliCelsius */
type = "critical";
};
};
cooling-maps {
map0 {
trip = <&main0_alert>;
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>;
};
};
};
main1_thermal: main1-thermal {
@ -26,12 +43,29 @@ main1_thermal: main1-thermal {
thermal-sensors = <&wkup_vtm0 1>;
trips {
main1_alert: main1-alert {
temperature = <115000>;
hysteresis = <2000>;
type = "passive";
};
main1_crit: main1-crit {
temperature = <125000>; /* milliCelsius */
hysteresis = <2000>; /* milliCelsius */
type = "critical";
};
};
cooling-maps {
map0 {
trip = <&main1_alert>;
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>;
};
};
};
main2_thermal: main2-thermal {
@ -40,11 +74,28 @@ main2_thermal: main2-thermal {
thermal-sensors = <&wkup_vtm0 2>;
trips {
main2_alert: main2-alert {
temperature = <115000>;
hysteresis = <2000>;
type = "passive";
};
main2_crit: main2-crit {
temperature = <125000>; /* milliCelsius */
hysteresis = <2000>; /* milliCelsius */
type = "critical";
};
};
cooling-maps {
map0 {
trip = <&main2_alert>;
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>;
};
};
};
};

4
arch/arm64/boot/dts/ti/k3-am62p5.dtsi
View File

@ -49,6 +49,7 @@ cpu0: cpu@0 {
next-level-cache = <&l2_0>;
operating-points-v2 = <&a53_opp_table>;
clocks = <&k3_clks 135 0>;
#cooling-cells = <2>;
};
cpu1: cpu@1 {
@ -65,6 +66,7 @@ cpu1: cpu@1 {
next-level-cache = <&l2_0>;
operating-points-v2 = <&a53_opp_table>;
clocks = <&k3_clks 136 0>;
#cooling-cells = <2>;
};
cpu2: cpu@2 {
@ -81,6 +83,7 @@ cpu2: cpu@2 {
next-level-cache = <&l2_0>;
operating-points-v2 = <&a53_opp_table>;
clocks = <&k3_clks 137 0>;
#cooling-cells = <2>;
};
cpu3: cpu@3 {
@ -97,6 +100,7 @@ cpu3: cpu@3 {
next-level-cache = <&l2_0>;
operating-points-v2 = <&a53_opp_table>;
clocks = <&k3_clks 138 0>;
#cooling-cells = <2>;
};
};

4
arch/arm64/boot/dts/ti/k3-j722s.dtsi
View File

@ -56,6 +56,7 @@ cpu0: cpu@0 {
d-cache-sets = <128>;
next-level-cache = <&l2_0>;
clocks = <&k3_clks 135 0>;
#cooling-cells = <2>;
};
cpu1: cpu@1 {
@ -71,6 +72,7 @@ cpu1: cpu@1 {
d-cache-sets = <128>;
next-level-cache = <&l2_0>;
clocks = <&k3_clks 136 0>;
#cooling-cells = <2>;
};
cpu2: cpu@2 {
@ -86,6 +88,7 @@ cpu2: cpu@2 {
d-cache-sets = <128>;
next-level-cache = <&l2_0>;
clocks = <&k3_clks 137 0>;
#cooling-cells = <2>;
};
cpu3: cpu@3 {
@ -101,6 +104,7 @@ cpu3: cpu@3 {
d-cache-sets = <128>;
next-level-cache = <&l2_0>;
clocks = <&k3_clks 138 0>;
#cooling-cells = <2>;
};
};