arm64: dts: ls1088a: add missing PMU node

The Performance Manager Unit was not described in the DTS
which meant performance event monitoring was not possible.

This was exposed by a change to the PMU handling in KVM
in 5.11-rc3 which now prevents a PMU being exposed to a
guest when the host does not provide one:
"KVM: arm64: Don't access PMCR_EL0 when no PMU is available"

Signed-off-by: Mathew McBride <matt@traverse.com.au>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
index 79ceadc..f85e437 100644 (file)
--- a/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1088a.dtsi
@@ -189,6 +189,11 @@
                             <1 10 IRQ_TYPE_LEVEL_LOW>;/* Hypervisor PPI */
        };
 
+       pmu {
+               compatible = "arm,cortex-a53-pmu";
+               interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
+       };
+
        psci {
                compatible = "arm,psci-0.2";
                method = "smc";