ARM: dts: r8a7793: Add PMU device node

Enable support for the ARM Performance Monitor Units in the Cortex-A15
CPU cores on R-Car M2-N by adding a device node for the PMU.

New Linux output:

    hw perfevents: enabled with armv7_cortex_a15 PMU driver, 7 counters available

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/r8a7793.dtsi b/arch/arm/boot/dts/r8a7793.dtsi
index 6975b0efc46c..4c29de510481 100644
--- a/arch/arm/boot/dts/r8a7793.dtsi
+++ b/arch/arm/boot/dts/r8a7793.dtsi
@@ -110,6 +110,13 @@
                 clock-frequency = <0>;
         };
 
+        pmu {
+                compatible = "arm,cortex-a15-pmu";
+                interrupts-extended = <&gic GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>,
+                                      <&gic GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+                interrupt-affinity = <&cpu0>, <&cpu1>;
+        };
+
         /* External SCIF clock */
         scif_clk: scif {
                 compatible = "fixed-clock";