linux-kernel - [PATCH] arm64: dts: imx8mp: Correct thermal sensor index

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Message-Id: <20250905-imx8mp-thermal-v1-1-64401ac8edb0@nxp.com>
Date: Fri, 05 Sep 2025 11:01:09 +0800
From: Peng Fan <peng.fan@....com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, 
 Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, 
 Amit Kucheria <amit.kucheria@...aro.org>
Cc: devicetree@...r.kernel.org, imx@...ts.linux.dev, 
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Peng Fan <peng.fan@....com>
Subject: [PATCH] arm64: dts: imx8mp: Correct thermal sensor index

The TMU has two temperature measurement sites located on the chip. The
probe 0 is located inside of the ANAMIX, while the probe 1 is located near
the ARM core. This has been confirmed by checking with HW design team and
checking RTL code.

So correct the {cpu,soc}-thermal sensor index.

Fixes: 30cdd62dce6b ("arm64: dts: imx8mp: Add thermal zones support")
Signed-off-by: Peng Fan <peng.fan@....com>
---
 arch/arm64/boot/dts/freescale/imx8mp.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 5d10de3950c3488acc80f574c8c59b55b6fbf575..91e47b1d6902fc22a368511a57522aa7d55ae167 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -298,7 +298,7 @@ thermal-zones {
 		cpu-thermal {
 			polling-delay-passive = <250>;
 			polling-delay = <2000>;
-			thermal-sensors = <&tmu 0>;
+			thermal-sensors = <&tmu 1>;
 			trips {
 				cpu_alert0: trip0 {
 					temperature = <85000>;
@@ -331,7 +331,7 @@ map0 {
 		soc-thermal {
 			polling-delay-passive = <250>;
 			polling-delay = <2000>;
-			thermal-sensors = <&tmu 1>;
+			thermal-sensors = <&tmu 0>;
 			trips {
 				soc_alert0: trip0 {
 					temperature = <85000>;

---
base-commit: 4ac65880ebca1b68495bd8704263b26c050ac010
change-id: 20250905-imx8mp-thermal-08271c5cb5c7

Best regards,
-- 
Peng Fan <peng.fan@....com>