From a934a5834d59d8529da228aec1f3f89d1be225e9 Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Tue, 27 Feb 2018 16:16:10 +0100 Subject: [PATCH] ARM: dts: imx7: add CPU PMU support Enable support for ARM Performance Monitoring Units available on the Cortex-A7 CPU. There is only a single interrupt for the PMU in both variants of the family, i.MX 7Solo and 7Dual. Tested with perf on a i.MX 7Dual: hw perfevents: enabled with armv7_cortex_a7 PMU driver, 5 counters available Signed-off-by: Stefan Agner Reviewed-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/boot/dts/imx7s.dtsi | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi index ec6292c5b2e4..6401b08d803e 100644 --- a/arch/arm/boot/dts/imx7s.dtsi +++ b/arch/arm/boot/dts/imx7s.dtsi @@ -130,6 +130,12 @@ #phy-cells = <0>; }; + pmu { + compatible = "arm,cortex-a7-pmu"; + interrupt-parent = <&gpc>; + interrupts = ; + interrupt-affinity = <&cpu0>; + }; replicator { /* -- 2.30.2