linux-kernel - [PATCH 2/3] arm64: dts: ti: k3-am62a: Set Critical Temp. to 105C

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20250502142606.2840508-2-d.schultz@phytec.de>
Date: Fri, 2 May 2025 07:26:05 -0700
From: Daniel Schultz <d.schultz@...tec.de>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
	<krzk+dt@...nel.org>, <conor+dt@...nel.org>,
	<linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>
CC: <upstream@...ts.phytec.de>, Daniel Schultz <d.schultz@...tec.de>
Subject: [PATCH 2/3] arm64: dts: ti: k3-am62a: Set Critical Temp. to 105C

The AM62Ax SoC supports two temperature ranges:
* A: -40 to 105C - Extended Industrial
* I: -40 to 125C - Automotive

By default, use the lower limit (105 °C) so that any AM62A running
in Extended Industrial mode will shut down safely before overheating.

If the bootloader detects an Automotive-grade device, it should
override this and raise the critical trip point to 125 °C.

Signed-off-by: Daniel Schultz <d.schultz@...tec.de>
---
 arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi
index 39ff9118b6c4..40dcb9bab965 100644
--- a/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62a-thermal.dtsi
@@ -19,7 +19,7 @@ main0_alert: main0-alert {
 			};
 
 			main0_crit: main0-crit {
-				temperature = <125000>;	/* milliCelsius */
+				temperature = <105000>;	/* milliCelsius */
 				hysteresis = <2000>;	/* milliCelsius */
 				type = "critical";
 			};
@@ -50,7 +50,7 @@ main1_alert: main1-alert {
 			};
 
 			main1_crit: main1-crit {
-				temperature = <125000>;	/* milliCelsius */
+				temperature = <105000>;	/* milliCelsius */
 				hysteresis = <2000>;	/* milliCelsius */
 				type = "critical";
 			};
@@ -81,7 +81,7 @@ main2_alert: main2-alert {
 			};
 
 			main2_crit: main2-crit {
-				temperature = <125000>;	/* milliCelsius */
+				temperature = <105000>;	/* milliCelsius */
 				hysteresis = <2000>;	/* milliCelsius */
 				type = "critical";
 			};
-- 
2.25.1