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authorArnd Bergmann <arnd@arndb.de>2026-10-12 10:13:38 +0200
committerArnd Bergmann <arnd@arndb.de>2026-10-12 10:13:50 +0200
commit558c56d4bf7ea146e07dd97f5fca600adb175384 (patch)
tree21f109d09eef8f658cd99d6a5a504ead432b0416
parent182d918a68f69b693e59c64af2572bdde07cbed2 (diff)
parentb86eaddf467a9ddb69dbaa46eea9dda7f93347a3 (diff)
Merge tag 'tegra-for-7.3-arm64-dt-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into arm/fixes
arm64: tegra: Device tree fixes for v7.3 This contains various fixes for Tegra264. While the PWM and fan patches look like they'd be feature additions, I'd like to get them into stable kernels because without them, these devices either end up with the fan running at full speed or not at all, neither of which are great, but in case of the fan not running at all, it can cause the system to overheat. The remainder are some minor fixes for PCIe, mostly to satisfy the device tree validation. * tag 'tegra-for-7.3-arm64-dt-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: arm64: tegra: Add PCIe root ports on Tegra264 arm64: tegra: Reorder reg and reg-names to match bindings arm64: tegra: Add PWM fan on Jetson AGX Thor DevKit arm64: tegra: Add PWM controllers on Tegra264 Signed-off-by: Arnd Bergmann <arnd@arndb.de>
-rw-r--r--arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi13
-rw-r--r--arch/arm64/boot/dts/nvidia/tegra264.dtsi180
2 files changed, 169 insertions, 24 deletions
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 45f8df9bbfd6..4550e843f513 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
@@ -9,4 +9,17 @@
chosen {
stdout-path = "serial0:115200n8";
};
+
+ bus@0 {
+ pwm@c6a0000 {
+ status = "okay";
+ };
+ };
+
+ fan: pwm-fan {
+ compatible = "pwm-fan";
+ cooling-levels = <77 102 140 192 255>;
+ pwms = <&pwm4 0 40000>;
+ #cooling-cells = <2>;
+ };
};
diff --git a/arch/arm64/boot/dts/nvidia/tegra264.dtsi b/arch/arm64/boot/dts/nvidia/tegra264.dtsi
index 013228a81723..6b2e3a6ab810 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra264.dtsi
@@ -3356,6 +3356,18 @@
status = "disabled";
};
+ pwm4: pwm@c6a0000 {
+ compatible = "nvidia,tegra264-pwm";
+ reg = <0x0 0xc6a0000 0x0 0x10000>;
+ status = "disabled";
+
+ clocks = <&bpmp TEGRA264_CLK_PWM4>;
+ resets = <&bpmp TEGRA264_RESET_PWM4>;
+ reset-names = "pwm";
+
+ #pwm-cells = <2>;
+ };
+
pinmux_aon: pinmux@c7a2000 {
compatible = "nvidia,tegra264-pinmux-aon";
reg = <0x0 0x0c7a2000 0x0 0x2000>;
@@ -3537,11 +3549,11 @@
pci@c000000 {
compatible = "nvidia,tegra264-pcie";
- reg = <0xd0 0xb0000000 0x0 0x10000000>,
- <0x00 0x0c000000 0x0 0x00004000>,
+ reg = <0x00 0x0c000000 0x0 0x00004000>,
<0x00 0x0c004000 0x0 0x00001000>,
- <0x00 0x0c005000 0x0 0x00001000>;
- reg-names = "ecam", "xal", "xtl", "xtl-pri";
+ <0x00 0x0c005000 0x0 0x00001000>,
+ <0xd0 0xb0000000 0x0 0x10000000>;
+ reg-names = "xal", "xtl", "xtl-pri", "ecam";
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
@@ -3565,6 +3577,16 @@
nvidia,bpmp = <&bpmp 0>;
status = "disabled";
+
+ pcie@0 {
+ device_type = "pci";
+ compatible = "pciclass,0604";
+ reg = <0x0 0x0 0x0 0x0 0x0>;
+ bus-range = <0x01 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+ };
};
pinmux_main: pinmux@c281000 {
@@ -3661,6 +3683,66 @@
status = "disabled";
};
+ pwm2: pwm@c5e0000 {
+ compatible = "nvidia,tegra264-pwm";
+ reg = <0x0 0xc5e0000 0x0 0x10000>;
+ status = "disabled";
+
+ clocks = <&bpmp TEGRA264_CLK_PWM2>;
+ resets = <&bpmp TEGRA264_RESET_PWM2>;
+ reset-names = "pwm";
+
+ #pwm-cells = <2>;
+ };
+
+ pwm3: pwm@c5f0000 {
+ compatible = "nvidia,tegra264-pwm";
+ reg = <0x0 0xc5f0000 0x0 0x10000>;
+ status = "disabled";
+
+ clocks = <&bpmp TEGRA264_CLK_PWM3>;
+ resets = <&bpmp TEGRA264_RESET_PWM3>;
+ reset-names = "pwm";
+
+ #pwm-cells = <2>;
+ };
+
+ pwm5: pwm@c600000 {
+ compatible = "nvidia,tegra264-pwm";
+ reg = <0x0 0xc600000 0x0 0x10000>;
+ status = "disabled";
+
+ clocks = <&bpmp TEGRA264_CLK_PWM5>;
+ resets = <&bpmp TEGRA264_RESET_PWM5>;
+ reset-names = "pwm";
+
+ #pwm-cells = <2>;
+ };
+
+ pwm9: pwm@c610000 {
+ compatible = "nvidia,tegra264-pwm";
+ reg = <0x0 0xc610000 0x0 0x10000>;
+ status = "disabled";
+
+ clocks = <&bpmp TEGRA264_CLK_PWM9>;
+ resets = <&bpmp TEGRA264_RESET_PWM9>;
+ reset-names = "pwm";
+
+ #pwm-cells = <2>;
+ };
+
+ pwm10: pwm@c620000 {
+ compatible = "nvidia,tegra264-pwm";
+ reg = <0x0 0xc620000 0x0 0x10000>;
+ status = "disabled";
+
+ clocks = <&bpmp TEGRA264_CLK_PWM10>;
+ resets = <&bpmp TEGRA264_RESET_PWM10>;
+ reset-names = "pwm";
+
+ #pwm-cells = <2>;
+ };
+
i2c0: i2c@c630000 {
compatible = "nvidia,tegra264-i2c";
reg = <0x00 0x0c630000 0x0 0x10000>;
@@ -3990,12 +4072,12 @@
pci@8400000 {
compatible = "nvidia,tegra264-pcie";
- reg = <0xa8 0xb0000000 0x0 0x10000000>,
- <0x00 0x08400000 0x0 0x00004000>,
+ reg = <0x00 0x08400000 0x0 0x00004000>,
<0x00 0x08404000 0x0 0x00001000>,
<0x00 0x08405000 0x0 0x00001000>,
- <0x00 0x08410000 0x0 0x00010000>;
- reg-names = "ecam", "xal", "xtl", "xtl-pri", "xpl";
+ <0x00 0x08410000 0x0 0x00010000>,
+ <0xa8 0xb0000000 0x0 0x10000000>;
+ reg-names = "xal", "xtl", "xtl-pri", "xpl", "ecam";
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
@@ -4018,16 +4100,26 @@
nvidia,bpmp = <&bpmp 1>;
status = "disabled";
+
+ pcie@0 {
+ device_type = "pci";
+ compatible = "pciclass,0604";
+ reg = <0x0 0x0 0x0 0x0 0x0>;
+ bus-range = <0x01 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+ };
};
pci@8420000 {
compatible = "nvidia,tegra264-pcie";
- reg = <0xb0 0xb0000000 0x0 0x10000000>,
- <0x00 0x08420000 0x0 0x00004000>,
+ reg = <0x00 0x08420000 0x0 0x00004000>,
<0x00 0x08424000 0x0 0x00001000>,
<0x00 0x08425000 0x0 0x00001000>,
- <0x00 0x08430000 0x0 0x00010000>;
- reg-names = "ecam", "xal", "xtl", "xtl-pri", "xpl";
+ <0x00 0x08430000 0x0 0x00010000>,
+ <0xb0 0xb0000000 0x0 0x10000000>;
+ reg-names = "xal", "xtl", "xtl-pri", "xpl", "ecam";
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
@@ -4050,16 +4142,26 @@
nvidia,bpmp = <&bpmp 2>;
status = "disabled";
+
+ pcie@0 {
+ device_type = "pci";
+ compatible = "pciclass,0604";
+ reg = <0x0 0x0 0x0 0x0 0x0>;
+ bus-range = <0x01 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+ };
};
pci@8440000 {
compatible = "nvidia,tegra264-pcie";
- reg = <0xb8 0xb0000000 0x0 0x10000000>,
- <0x00 0x08440000 0x0 0x00004000>,
+ reg = <0x00 0x08440000 0x0 0x00004000>,
<0x00 0x08444000 0x0 0x00001000>,
<0x00 0x08445000 0x0 0x00001000>,
- <0x00 0x08450000 0x0 0x00010000>;
- reg-names = "ecam", "xal", "xtl", "xtl-pri", "xpl";
+ <0x00 0x08450000 0x0 0x00010000>,
+ <0xb8 0xb0000000 0x0 0x10000000>;
+ reg-names = "xal", "xtl", "xtl-pri", "xpl", "ecam";
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
@@ -4082,16 +4184,26 @@
nvidia,bpmp = <&bpmp 3>;
status = "disabled";
+
+ pcie@0 {
+ device_type = "pci";
+ compatible = "pciclass,0604";
+ reg = <0x0 0x0 0x0 0x0 0x0>;
+ bus-range = <0x01 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+ };
};
pci@8460000 {
compatible = "nvidia,tegra264-pcie";
- reg = <0xc0 0xb0000000 0x0 0x10000000>,
- <0x00 0x08460000 0x0 0x00004000>,
+ reg = <0x00 0x08460000 0x0 0x00004000>,
<0x00 0x08464000 0x0 0x00001000>,
<0x00 0x08465000 0x0 0x00001000>,
- <0x00 0x08470000 0x0 0x00010000>;
- reg-names = "ecam", "xal", "xtl", "xtl-pri", "xpl";
+ <0x00 0x08470000 0x0 0x00010000>,
+ <0xc0 0xb0000000 0x0 0x10000000>;
+ reg-names = "xal", "xtl", "xtl-pri", "xpl", "ecam";
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
@@ -4114,16 +4226,26 @@
nvidia,bpmp = <&bpmp 4>;
status = "disabled";
+
+ pcie@0 {
+ device_type = "pci";
+ compatible = "pciclass,0604";
+ reg = <0x0 0x0 0x0 0x0 0x0>;
+ bus-range = <0x01 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+ };
};
pci@8480000 {
compatible = "nvidia,tegra264-pcie";
- reg = <0xc8 0xb0000000 0x0 0x10000000>,
- <0x00 0x08480000 0x0 0x00004000>,
+ reg = <0x00 0x08480000 0x0 0x00004000>,
<0x00 0x08484000 0x0 0x00001000>,
<0x00 0x08485000 0x0 0x00001000>,
- <0x00 0x08490000 0x0 0x00010000>;
- reg-names = "ecam", "xal", "xtl", "xtl-pri", "xpl";
+ <0x00 0x08490000 0x0 0x00010000>,
+ <0xc8 0xb0000000 0x0 0x10000000>;
+ reg-names = "xal", "xtl", "xtl-pri", "xpl", "ecam";
#address-cells = <3>;
#size-cells = <2>;
device_type = "pci";
@@ -4146,6 +4268,16 @@
nvidia,bpmp = <&bpmp 5>;
status = "disabled";
+
+ pcie@0 {
+ device_type = "pci";
+ compatible = "pciclass,0604";
+ reg = <0x0 0x0 0x0 0x0 0x0>;
+ bus-range = <0x01 0xff>;
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges;
+ };
};
};