* [PATCH 0/3] arm64: tegra: Fix missing regulator for Jetson AGX Thor
@ 2026-11-06 12:02 Jon Hunter
2026-11-06 12:02 ` [PATCH 1/3] arm64: tegra: Add regulator for Jetson AGX Thor thermal sensor Jon Hunter
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: Jon Hunter @ 2026-11-06 12:02 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Thierry Reding
Cc: devicetree, linux-tegra, linux-kernel, Thierry Reding, Jon Hunter
This series add some missing regulators for the Jetson AGX Thor board in
order to fix the following warnings:
WARNING KERN at24 1-0050: supply vcc not found, using dummy regulator
WARNING KERN lm90 5-004c: supply vcc not found, using dummy regulator
WARNING KERN at24 1-0056: supply vcc not found, using dummy regulator
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
Jon Hunter (3):
arm64: tegra: Add regulator for Jetson AGX Thor thermal sensor
arm64: tegra: Add regulator for Jetson AGX Thor system EEPROM
arm64: tegra: Add regulator for Jetson AGX Thor module EEPROM
arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi | 19 +++++++++++++++++++
.../dts/nvidia/tegra264-p4071-0000+p3834-0008.dts | 4 ++++
.../boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi | 18 ++++++++++++++++++
3 files changed, 41 insertions(+)
---
base-commit: 2637bdec0535a2044cd830eba9a79363651d9043
change-id: 20261105-tegra-for-7-3-fixes-9fa9b3b71b19
Best regards,
--
Jon Hunter <jonathanh@nvidia.com>
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH 1/3] arm64: tegra: Add regulator for Jetson AGX Thor thermal sensor
2026-11-06 12:02 [PATCH 0/3] arm64: tegra: Fix missing regulator for Jetson AGX Thor Jon Hunter
@ 2026-11-06 12:02 ` Jon Hunter
2026-11-06 12:02 ` [PATCH 2/3] arm64: tegra: Add regulator for Jetson AGX Thor system EEPROM Jon Hunter
2026-11-06 12:03 ` [PATCH 3/3] arm64: tegra: Add regulator for Jetson AGX Thor module EEPROM Jon Hunter
2 siblings, 0 replies; 4+ messages in thread
From: Jon Hunter @ 2026-11-06 12:02 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Thierry Reding
Cc: devicetree, linux-tegra, linux-kernel, Thierry Reding, Jon Hunter
Add the 1.8V regulator that supplies the thermal sensor on the Jetson
AGX Thor module to fix the following warning:
WARNING KERN lm90 5-004c: supply vcc not found, using dummy regulator
Note that this 1.8V regulator is supplied by a 5.0V regulator that is
located on the carrier board for the Jetson AGX Thor platform.
Fixes: 56bb69f9b003 ("arm64: tegra: Add thermal sensor for Jetson AGX Thor")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi | 9 +++++++++
arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834-0008.dts | 4 ++++
arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi | 9 +++++++++
3 files changed, 22 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi b/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi
index f39f33a66cd2..707e2e79efa7 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi
@@ -61,10 +61,19 @@ i2c {
thermal-sensor@4c {
compatible = "ti,tmp451";
reg = <0x4c>;
+ vcc-supply = <&vdd_1v8_ao>;
};
};
};
+ vdd_1v8_ao: regulator-vdd-1v8-ao {
+ compatible = "regulator-fixed";
+ regulator-name = "VDD_1V8_AO";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
thermal-zones {
cpu-thermal {
polling-delay-passive = <40>;
diff --git a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834-0008.dts b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834-0008.dts
index 3bd4c4cf2871..d598c6925773 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834-0008.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834-0008.dts
@@ -20,4 +20,8 @@ pci@8480000 {
status = "okay";
};
};
+
+ regulator-vdd-1v8-ao {
+ vin-supply = <&vdd_5v0_sys>;
+ };
};
diff --git a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
index 9295f9c81296..0ed2335ea91f 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
@@ -64,6 +64,15 @@ key-power {
};
};
+ vdd_5v0_sys: regulator-vdd-5v0-sys {
+ compatible = "regulator-fixed";
+ regulator-name = "VIN_SYS_5V0";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
thermal-zones {
tj-thermal {
trips {
--
2.43.0
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH 2/3] arm64: tegra: Add regulator for Jetson AGX Thor system EEPROM
2026-11-06 12:02 [PATCH 0/3] arm64: tegra: Fix missing regulator for Jetson AGX Thor Jon Hunter
2026-11-06 12:02 ` [PATCH 1/3] arm64: tegra: Add regulator for Jetson AGX Thor thermal sensor Jon Hunter
@ 2026-11-06 12:02 ` Jon Hunter
2026-11-06 12:03 ` [PATCH 3/3] arm64: tegra: Add regulator for Jetson AGX Thor module EEPROM Jon Hunter
2 siblings, 0 replies; 4+ messages in thread
From: Jon Hunter @ 2026-11-06 12:02 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Thierry Reding
Cc: devicetree, linux-tegra, linux-kernel, Thierry Reding, Jon Hunter
Add the 1.8V regulator that supplies the EEPROM on the Jetson AGX Thor
carrier board to fix the following warning:
WARNING KERN at24 1-0056: supply vcc not found, using dummy regulator
Fixes: 6285ff371e83 ("arm64: tegra: Add NVIDIA Jetson AGX Thor system EEPROM")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
index 0ed2335ea91f..8b9108634ace 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
@@ -29,6 +29,7 @@ eeprom@56 {
compatible = "atmel,24c02";
reg = <0x56>;
label = "system";
+ vcc-supply = <&vdd_1v8_sys>;
address-width = <8>;
pagesize = <8>;
size = <256>;
@@ -64,6 +65,14 @@ key-power {
};
};
+ vdd_1v8_sys: regulator-vdd-1v8-sys {
+ compatible = "regulator-fixed";
+ regulator-name = "VDD_1V8_SYS";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ regulator-always-on;
+ };
+
vdd_5v0_sys: regulator-vdd-5v0-sys {
compatible = "regulator-fixed";
regulator-name = "VIN_SYS_5V0";
--
2.43.0
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH 3/3] arm64: tegra: Add regulator for Jetson AGX Thor module EEPROM
2026-11-06 12:02 [PATCH 0/3] arm64: tegra: Fix missing regulator for Jetson AGX Thor Jon Hunter
2026-11-06 12:02 ` [PATCH 1/3] arm64: tegra: Add regulator for Jetson AGX Thor thermal sensor Jon Hunter
2026-11-06 12:02 ` [PATCH 2/3] arm64: tegra: Add regulator for Jetson AGX Thor system EEPROM Jon Hunter
@ 2026-11-06 12:03 ` Jon Hunter
2 siblings, 0 replies; 4+ messages in thread
From: Jon Hunter @ 2026-11-06 12:03 UTC (permalink / raw)
To: Rob Herring, Krzysztof Kozlowski, Conor Dooley, Thierry Reding
Cc: devicetree, linux-tegra, linux-kernel, Thierry Reding, Jon Hunter
Add the 1.8V regulator that supplies the EEPROM on the Jetson AGX Thor
module to fix the following warning:
WARNING KERN at24 1-0050: supply vcc not found, using dummy regulator
Fixes: 056329beb73e ("arm64: tegra: Add NVIDIA Jetson AGX Thor module EEPROM")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi b/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi
index 707e2e79efa7..765d1c62c597 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi
@@ -46,6 +46,7 @@ eeprom@50 {
compatible = "atmel,24c02";
reg = <0x50>;
label = "module";
+ vcc-supply = <&vdd_1v8_ls>;
address-width = <8>;
pagesize = <8>;
size = <256>;
@@ -66,6 +67,15 @@ thermal-sensor@4c {
};
};
+ vdd_1v8_ls: regulator-vdd-1v8-ls {
+ compatible = "regulator-fixed";
+ regulator-name = "VDD_1V8_LS";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <&vdd_1v8_ao>;
+ regulator-always-on;
+ };
+
vdd_1v8_ao: regulator-vdd-1v8-ao {
compatible = "regulator-fixed";
regulator-name = "VDD_1V8_AO";
--
2.43.0
^ permalink raw reply [flat|nested] 4+ messages in thread
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2026-11-06 12:02 [PATCH 0/3] arm64: tegra: Fix missing regulator for Jetson AGX Thor Jon Hunter
2026-11-06 12:02 ` [PATCH 1/3] arm64: tegra: Add regulator for Jetson AGX Thor thermal sensor Jon Hunter
2026-11-06 12:02 ` [PATCH 2/3] arm64: tegra: Add regulator for Jetson AGX Thor system EEPROM Jon Hunter
2026-11-06 12:03 ` [PATCH 3/3] arm64: tegra: Add regulator for Jetson AGX Thor module EEPROM Jon Hunter
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