ARM: tegra: add clock properties for devices of Tegra124

This patch adds clock properties for devices in the DT for basic support
of Tegra124 SoC.
Signed-off-by: Joseph Lo <josephl@nvidia.com>
[swarren, added missing unit address to "clock" node]
Signed-off-by: Stephen Warren <swarren@nvidia.com>

arch/arm/boot/dts/tegra124-venice2.dts

@@ -24,4 +24,17 @@ pmc@7000e400 {
 		nvidia,core-power-req-active-high;
 		nvidia,sys-clock-req-active-high;
 	};
+
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock@0 {
+			compatible = "fixed-clock";
+			reg=<0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
 };

arch/arm/boot/dts/tegra124.dtsi

+#include <dt-bindings/clock/tegra124-car.h>
 #include <dt-bindings/gpio/tegra-gpio.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 
@@ -28,6 +29,13 @@ timer@60005000 {
 			     <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>,
 			     <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&tegra_car TEGRA124_CLK_TIMER>;
+	};
+
+	tegra_car: clock@60006000 {
+		compatible = "nvidia,tegra124-car";
+		reg = <0x60006000 0x1000>;
+		#clock-cells = <1>;
 	};
 
 	gpio: gpio@6000d000 {
@@ -60,6 +68,7 @@ serial@70006000 {
 		reg = <0x70006000 0x40>;
 		reg-shift = <2>;
 		interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&tegra_car TEGRA124_CLK_UARTA>;
 		status = "disabled";
 	};
 
@@ -68,6 +77,7 @@ serial@70006040 {
 		reg = <0x70006040 0x40>;
 		reg-shift = <2>;
 		interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&tegra_car TEGRA124_CLK_UARTB>;
 		status = "disabled";
 	};
 
@@ -76,6 +86,7 @@ serial@70006200 {
 		reg = <0x70006200 0x40>;
 		reg-shift = <2>;
 		interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&tegra_car TEGRA124_CLK_UARTC>;
 		status = "disabled";
 	};
 
@@ -84,6 +95,7 @@ serial@70006300 {
 		reg = <0x70006300 0x40>;
 		reg-shift = <2>;
 		interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&tegra_car TEGRA124_CLK_UARTD>;
 		status = "disabled";
 	};
 
@@ -92,6 +104,7 @@ serial@70006400 {
 		reg = <0x70006400 0x40>;
 		reg-shift = <2>;
 		interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&tegra_car TEGRA124_CLK_UARTE>;
 		status = "disabled";
 	};
 
@@ -99,11 +112,14 @@ rtc@7000e000 {
 		compatible = "nvidia,tegra124-rtc", "nvidia,tegra20-rtc";
 		reg = <0x7000e000 0x100>;
 		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&tegra_car TEGRA124_CLK_RTC>;
 	};
 
 	pmc@7000e400 {
 		compatible = "nvidia,tegra124-pmc";
 		reg = <0x7000e400 0x400>;
+		clocks = <&tegra_car TEGRA124_CLK_PCLK>, <&clk32k_in>;
+		clock-names = "pclk", "clk32k_in";
 	};
 
 	cpus {