linux-kernel - [PATCH 2/2] arm64: dts: ti: k3-am62p-verdin: Adjust temperature trip points

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Message-Id: <20250623-b4-verdin-am62p-cooling-device-v1-2-cc185ba5843d@toradex.com>
Date: Mon, 23 Jun 2025 13:12:27 -0300
From: João Paulo Gonçalves <jpaulo.silvagoncalves@...il.com>
To: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>, 
 Tero Kristo <kristo@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>
Cc: linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 João Paulo Gonçalves <joao.goncalves@...adex.com>
Subject: [PATCH 2/2] arm64: dts: ti: k3-am62p-verdin: Adjust temperature
 trip points

From: João Paulo Gonçalves <joao.goncalves@...adex.com>

While the TI AM62P supports a junction temperature (Tj) of up to 125°C
for industrial and automotive parts, Toradex Verdin-AM62P hardware
lifetime guarantees consider a 105°C Tj. Change the passive trip points
to 95°C and the critical trip points to 105°C to be compliant with the
hardware specifications.

Signed-off-by: João Paulo Gonçalves <joao.goncalves@...adex.com>
---
 arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
index 226398c37fa9b348b8ea30e1e21f75e98bd3d60b..7676b24b13f67da81245c023e0fdc27294efec82 100644
--- a/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62p-verdin.dtsi
@@ -848,6 +848,30 @@ mbox_mcu_r5_0: mbox-mcu-r5-0 {
 	};
 };
 
+&main0_alert {
+	temperature = <95000>;
+};
+
+&main0_crit {
+	temperature = <105000>;
+};
+
+&main1_alert {
+	temperature = <95000>;
+};
+
+&main1_crit {
+	temperature = <105000>;
+};
+
+&main2_alert {
+	temperature = <95000>;
+};
+
+&main2_crit {
+	temperature = <105000>;
+};
+
 &main_gpio0 {
 	gpio-line-names =
 		"SODIMM_52",

-- 
2.43.0