| Message ID | 20240814214328.14155-1-alessandro.zini@siemens.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm64: dts: ti: k3-am62: enable cpu freq throttling on thermal alert | expand |
Hi A. Zini, On Wed, 14 Aug 2024 23:43:28 +0200, A. Zini wrote: > Enable throttling down the cpu frequency when an alert temperature > threshold (lower than the critical threshold) is reached. > > I have applied the following to branch ti-k3-dts-next on [1] with minor capitilization fixups. Thank you! [1/1] arm64: dts: ti: k3-am62: enable cpu freq throttling on thermal alert commit: 10e7bfd8114c207acd3858086f07061e447dd04f All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent up the chain during the next merge window (or sooner if it is a relevant bug fix), however if problems are discovered then the patch may be dropped or reverted. You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed. If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced. Please add any relevant lists and maintainers to the CCs when replying to this mail. [1] https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux.git
diff --git a/arch/arm64/boot/dts/ti/k3-am62-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-am62-thermal.dtsi index a358757e26f0..c1683bbb241d 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-thermal.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-thermal.dtsi @@ -9,12 +9,29 @@ main0_thermal: main0-thermal { thermal-sensors = <&wkup_vtm0 0>; trips { + main0_alert: main0-alert { + temperature = <95000>; + hysteresis = <2000>; + type = "passive"; + }; + main0_crit: main0-crit { temperature = <105000>; /* 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 { @@ -23,11 +40,28 @@ main1_thermal: main1-thermal { thermal-sensors = <&wkup_vtm0 1>; trips { + main1_alert: main1-alert { + temperature = <95000>; + hysteresis = <2000>; + type = "passive"; + }; + main1_crit: main1-crit { temperature = <105000>; /* 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>; + }; + }; }; }; diff --git a/arch/arm64/boot/dts/ti/k3-am625.dtsi b/arch/arm64/boot/dts/ti/k3-am625.dtsi index 4193c2b3eed6..091aebb41dd9 100644 --- a/arch/arm64/boot/dts/ti/k3-am625.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am625.dtsi @@ -50,6 +50,7 @@ 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 { @@ -66,6 +67,7 @@ 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 { @@ -82,6 +84,7 @@ 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 { @@ -98,6 +101,7 @@ cpu3: cpu@3 { next-level-cache = <&L2_0>; operating-points-v2 = <&a53_opp_table>; clocks = <&k3_clks 138 0>; + #cooling-cells = <2>; }; };