From 69e52712002cb6768b894cde9620fb426fd8728d Mon Sep 17 00:00:00 2001
From: Stefan Wahren <stefan.wahren@i2se.com>
Date: Fri, 16 Mar 2018 21:49:37 +0100
Subject: [PATCH] ARM: dts: bcm2837: Enable PMU on Raspberry Pi 3

This enables the PMU (performance monitoring unit) on Raspberry Pi 3.
In order to make it work on ARM and ARM64, we need to specify two
compatible strings.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
---
 arch/arm/boot/dts/bcm2837.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/bcm2837.dtsi b/arch/arm/boot/dts/bcm2837.dtsi
index 7704bb029605..1f5e5c782835 100644
--- a/arch/arm/boot/dts/bcm2837.dtsi
+++ b/arch/arm/boot/dts/bcm2837.dtsi
@@ -17,6 +17,12 @@
 		};
 	};
 
+	arm-pmu {
+		compatible = "arm,cortex-a53-pmu", "arm,cortex-a7-pmu";
+		interrupt-parent = <&local_intc>;
+		interrupts = <9 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
 	timer {
 		compatible = "arm,armv7-timer";
 		interrupt-parent = <&local_intc>;