[PATCH v2 1/1] ARM: dts: microchip: sama7d65: add Cortex-A7 PMU node

[Mihai Sain]

Add the Performance Monitoring Unit (PMU) node with the appropriate
compatible string and interrupt line so that perf and other
PMU-based tooling can function correctly on this SoC.

[root at SAMA7D65 ~]$ dmesg | grep -i pmu
[    1.487869] hw-perfevents: enabled with armv7_cortex_a7 PMU driver, 5 (8000000f) counters available

[root at SAMA7D65 ~]$ perf list hw
List of pre-defined events (to be used in -e or -M):

branch-instructions OR branches                    [Hardware event]
branch-misses                                      [Hardware event]
bus-cycles                                         [Hardware event]
cache-misses                                       [Hardware event]
cache-references                                   [Hardware event]
cpu-cycles OR cycles                               [Hardware event]
instructions                                       [Hardware event]

Signed-off-by: Mihai Sain <mihai.sain at microchip.com>
---
 arch/arm/boot/dts/microchip/sama7d65.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/microchip/sama7d65.dtsi b/arch/arm/boot/dts/microchip/sama7d65.dtsi
index e21556f46384..ed1ec952531c 100644
--- a/arch/arm/boot/dts/microchip/sama7d65.dtsi
+++ b/arch/arm/boot/dts/microchip/sama7d65.dtsi
@@ -45,6 +45,11 @@ L2: l2-cache {
 		};
 	};
 
+	pmu {
+		compatible = "arm,cortex-a7-pmu";
+		interrupts = <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
 	clocks {
 		main_xtal: clock-mainxtal {
 			compatible = "fixed-clock";
-- 
2.53.0