From: Mike Hsieh <mike.quanta.115@gmail.com>
Date: Fri, 22 May 2026 10:07:59 +0000 (+0800)
Subject: ARM: dts: aspeed: clemente: Remove IOB NIC TMP421 nodes
X-Git-Url: http://git.ipfire.org/gitweb/index.cgi?a=commitdiff_plain;h=9c18b2048274d05bc78cdc309278a581e77c19a1;p=thirdparty%2Flinux.git

ARM: dts: aspeed: clemente: Remove IOB NIC TMP421 nodes

Remove the TMP421 sensor entry from the DTS, as it is no longer the
primary telemetry source.

Accessing the CX8 NIC via I2C while it is powered off causes voltage
leakage on the bus, leading to EEPROM corruption on shared I2C devices.
Removing this node prevents the BMC from initiating traffic to the NIC
during initialization, protecting the integrity of the shared bus.

Signed-off-by: Mike Hsieh <mike.quanta.115@gmail.com>
Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
---

diff --git a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts
index 2aff21442f11..820d39a92974 100644
--- a/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts
+++ b/arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-clemente.dts
@@ -443,11 +443,6 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0>;
-			// IOB0 NIC0 TEMP
-			temperature-sensor@1f {
-				compatible = "ti,tmp421";
-				reg = <0x1f>;
-			};
 		};
 
 		i2c0mux2ch1: i2c@1 {
@@ -466,11 +461,6 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <3>;
-			// IOB0 NIC1 TEMP
-			temperature-sensor@1f {
-				compatible = "ti,tmp421";
-				reg = <0x1f>;
-			};
 		};
 	};
 
@@ -637,11 +627,6 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <0>;
-			// IOB1 NIC0 TEMP
-			temperature-sensor@1f {
-				compatible = "ti,tmp421";
-				reg = <0x1f>;
-			};
 		};
 
 		i2c0mux5ch1: i2c@1 {
@@ -666,11 +651,6 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 			reg = <3>;
-			// IOB1 NIC1 TEMP
-			temperature-sensor@1f {
-				compatible = "ti,tmp421";
-				reg = <0x1f>;
-			};
 		};
 	};
 };