[PATCH v4 5/5] ARM: EXYNOS: Add arm-pmu DT binding for exynos421x

[Chanho Park]

This patch adds a arm-pmu node to bind device tree for exynos4210.
The exynos4210 and 4212 have two cpus which includes a pmu. In contrast, the
exynos4412 has 4 cpus and pmus. We need to define two more pmus for this type
board. However, supporting arm-pmu for the exynos4412 will handle it later
because there is no dts support for 4412 based board.

Signed-off-by: Chanho Park <chanho61.park at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
---
 arch/arm/boot/dts/exynos4210.dtsi |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
index 214c557..90f9aed 100644
--- a/arch/arm/boot/dts/exynos4210.dtsi
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -42,6 +42,12 @@
 			     <0 12 0>, <0 13 0>, <0 14 0>, <0 15 0>;
 	};
 
+	pmu {
+		compatible = "arm,cortex-a9-pmu";
+		interrupt-parent = <&combiner>;
+		interrupts = <2 2>, <3 2>;
+	};
+
 	pinctrl_0: pinctrl at 11400000 {
 		compatible = "samsung,pinctrl-exynos4210";
 		reg = <0x11400000 0x1000>;
-- 
1.7.9.5