diff options
| author | João Paulo Gonçalves <joao.goncalves@toradex.com> | 2025-06-23 13:12:26 -0300 |
|---|---|---|
| committer | Vignesh Raghavendra <vigneshr@ti.com> | 2025-07-09 16:08:24 +0530 |
| commit | f02dccbe9641c4be467d22f4d5712523d902e94d (patch) | |
| tree | a8690ac37ed406cec2d1ecb5bb0fb2effb558cc7 | |
| parent | 387727d7e5d9c2499aafbd04e22c9d39e8eec4c5 (diff) | |
arm64: dts: ti: k3-am62p-j722s: Enable freq throttling on thermal alert
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>
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am62p-j722s-common-thermal.dtsi | 51 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-am62p5.dtsi | 4 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/ti/k3-j722s.dtsi | 4 |
3 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-thermal.dtsi index c7486fb2a5b4..138b9c395be4 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-thermal.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62p-j722s-common-thermal.dtsi @@ -12,12 +12,29 @@ thermal_zones: thermal-zones { 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 @@ thermal_zones: thermal-zones { 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 @@ thermal_zones: thermal-zones { 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>; + }; + }; }; }; diff --git a/arch/arm64/boot/dts/ti/k3-am62p5.dtsi b/arch/arm64/boot/dts/ti/k3-am62p5.dtsi index 140587d02e88..202378d9d5cf 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p5.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62p5.dtsi @@ -49,6 +49,7 @@ 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 @@ 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 @@ 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 @@ next-level-cache = <&l2_0>; operating-points-v2 = <&a53_opp_table>; clocks = <&k3_clks 138 0>; + #cooling-cells = <2>; }; }; diff --git a/arch/arm64/boot/dts/ti/k3-j722s.dtsi b/arch/arm64/boot/dts/ti/k3-j722s.dtsi index 14c6c6a332ef..cdc8570e54b2 100644 --- a/arch/arm64/boot/dts/ti/k3-j722s.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j722s.dtsi @@ -56,6 +56,7 @@ d-cache-sets = <128>; next-level-cache = <&l2_0>; clocks = <&k3_clks 135 0>; + #cooling-cells = <2>; }; cpu1: cpu@1 { @@ -71,6 +72,7 @@ d-cache-sets = <128>; next-level-cache = <&l2_0>; clocks = <&k3_clks 136 0>; + #cooling-cells = <2>; }; cpu2: cpu@2 { @@ -86,6 +88,7 @@ d-cache-sets = <128>; next-level-cache = <&l2_0>; clocks = <&k3_clks 137 0>; + #cooling-cells = <2>; }; cpu3: cpu@3 { @@ -101,6 +104,7 @@ d-cache-sets = <128>; next-level-cache = <&l2_0>; clocks = <&k3_clks 138 0>; + #cooling-cells = <2>; }; }; |