arm64: tegra: Enable DFLL clock on Jetson TX1

Enable DFLL clock for Jetson TX1 platform.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

arch/arm64/boot/dts/nvidia/tegra210-p2371-2180.dts

@@ -78,4 +78,25 @@ rom_13h {
 			};
 		};
 	};
+
+	clock@70110000 {
+		status = "okay";
+
+		nvidia,cf = <6>;
+		nvidia,ci = <0>;
+		nvidia,cg = <2>;
+		nvidia,droop-ctrl = <0x00000f00>;
+		nvidia,force-mode = <1>;
+		nvidia,sample-rate = <25000>;
+
+		nvidia,pwm-min-microvolts = <708000>;
+		nvidia,pwm-period-nanoseconds = <2500>; /* 2.5us */
+		nvidia,pwm-to-pmic;
+		nvidia,pwm-tristate-microvolts = <1000000>;
+		nvidia,pwm-voltage-step-microvolts = <19200>;
+
+		pinctrl-names = "dvfs_pwm_enable", "dvfs_pwm_disable";
+		pinctrl-0 = <&dvfs_pwm_active_state>;
+		pinctrl-1 = <&dvfs_pwm_inactive_state>;
+	};
 };