ARM: STi: STiH416: Enable PMU IRQs

This driver is used to enable System Configuration Register controlled
External, CTI (Core Sight), PMU (Performance Management), and PL310 L2
Cache IRQs prior to use.

Here we are enabling PMU IRQs on both channels.
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NMaxime Coquelin <maxime.coquelin@st.com>

arch/arm/boot/dts/stih416.dtsi

@@ -13,6 +13,7 @@
 #include <dt-bindings/phy/phy.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/reset-controller/stih416-resets.h>
+#include <dt-bindings/interrupt-controller/irq-st.h>
 / {
 	L2: cache-controller {
 		compatible = "arm,pl310-cache";
@@ -98,6 +99,15 @@
 			reg		= <0xfe4b5100 0x8>;
 		};
 
+		irq-syscfg {
+			compatible    = "st,stih416-irq-syscfg";
+			st,syscfg     = <&syscfg_cpu>;
+			st,irq-device = <ST_IRQ_SYSCFG_PMU_0>,
+					<ST_IRQ_SYSCFG_PMU_1>;
+			st,fiq-device = <ST_IRQ_SYSCFG_DISABLED>,
+					<ST_IRQ_SYSCFG_DISABLED>;
+		};
+
 		serial2: serial@fed32000{
 			compatible	= "st,asc";
 			status 		= "disabled";