Merge: arm64: tegra: Add PWM fan for Jetson AGX Orin

MR: https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/1817

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2144639
Depends: https://bugzilla.redhat.com/show_bug.cgi?id=2135064
Tested: Simple boot tests and CKI

Minor change for DTS bindings and the use of those bindings.

Signed-off-by: Al Stone <ahs3@redhat.com>

Approved-by: Mark Langsdorf <mlangsdo@redhat.com>
Approved-by: Mark Salter <msalter@redhat.com>
Approved-by: Craig Magina <cmagina@redhat.com>

Signed-off-by: Herton R. Krzesinski <herton@redhat.com>

Author: Herton R. Krzesinski

arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts

@@ -2007,6 +2007,12 @@
 			status = "okay";
 		};
 
+		pwm@32a0000 {
+			assigned-clocks = <&bpmp TEGRA234_CLK_PWM3>;
+			assigned-clock-parents = <&bpmp TEGRA234_CLK_PLLP_OUT0>;
+			status = "okay";
+		};
+
 		hda@3510000 {
 			nvidia,model = "NVIDIA Jetson AGX Orin HDA";
 			status = "okay";
@@ -2184,4 +2190,12 @@
 		phy-names = "p2u-0", "p2u-1", "p2u-2", "p2u-3", "p2u-4",
 			    "p2u-5", "p2u-6", "p2u-7";
 	};
+
+	pwm-fan {
+		compatible = "pwm-fan";
+		pwms = <&pwm3 0 45334>;
+
+		cooling-levels = <0 95 178 255>;
+		#cooling-cells = <2>;
+	};
 };

arch/arm64/boot/dts/nvidia/tegra234.dtsi

@@ -870,8 +870,7 @@
 		};
 
 		pwm1: pwm@3280000 {
-			compatible = "nvidia,tegra194-pwm",
-				     "nvidia,tegra186-pwm";
+			compatible = "nvidia,tegra234-pwm", "nvidia,tegra194-pwm";
 			reg = <0x3280000 0x10000>;
 			clocks = <&bpmp TEGRA234_CLK_PWM1>;
 			clock-names = "pwm";
@@ -881,6 +880,72 @@
 			#pwm-cells = <2>;
 		};
 
+		pwm2: pwm@3290000 {
+			compatible = "nvidia,tegra234-pwm", "nvidia,tegra194-pwm";
+			reg = <0x3290000 0x10000>;
+			clocks = <&bpmp TEGRA234_CLK_PWM2>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA234_RESET_PWM2>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
+		pwm3: pwm@32a0000 {
+			compatible = "nvidia,tegra234-pwm", "nvidia,tegra194-pwm";
+			reg = <0x32a0000 0x10000>;
+			clocks = <&bpmp TEGRA234_CLK_PWM3>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA234_RESET_PWM3>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
+		pwm5: pwm@32c0000 {
+			compatible = "nvidia,tegra234-pwm", "nvidia,tegra194-pwm";
+			reg = <0x32c0000 0x10000>;
+			clocks = <&bpmp TEGRA234_CLK_PWM5>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA234_RESET_PWM5>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
+		pwm6: pwm@32d0000 {
+			compatible = "nvidia,tegra234-pwm", "nvidia,tegra194-pwm";
+			reg = <0x32d0000 0x10000>;
+			clocks = <&bpmp TEGRA234_CLK_PWM6>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA234_RESET_PWM6>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
+		pwm7: pwm@32e0000 {
+			compatible = "nvidia,tegra234-pwm", "nvidia,tegra194-pwm";
+			reg = <0x32e0000 0x10000>;
+			clocks = <&bpmp TEGRA234_CLK_PWM7>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA234_RESET_PWM7>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
+		pwm8: pwm@32f0000 {
+			compatible = "nvidia,tegra234-pwm", "nvidia,tegra194-pwm";
+			reg = <0x32f0000 0x10000>;
+			clocks = <&bpmp TEGRA234_CLK_PWM8>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA234_RESET_PWM8>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
 		spi@3300000 {
 			compatible = "nvidia,tegra234-qspi";
 			reg = <0x3300000 0x1000>;
@@ -1530,6 +1595,17 @@
 			gpio-controller;
 		};
 
+		pwm4: pwm@c340000 {
+			compatible = "nvidia,tegra234-pwm", "nvidia,tegra194-pwm";
+			reg = <0xc340000 0x10000>;
+			clocks = <&bpmp TEGRA234_CLK_PWM4>;
+			clock-names = "pwm";
+			resets = <&bpmp TEGRA234_RESET_PWM4>;
+			reset-names = "pwm";
+			status = "disabled";
+			#pwm-cells = <2>;
+		};
+
 		pmc: pmc@c360000 {
 			compatible = "nvidia,tegra234-pmc";
 			reg = <0x0c360000 0x10000>,