From mboxrd@z Thu Jan 1 00:00:00 1970 From: stefan@agner.ch (Stefan Agner) Date: Tue, 27 Feb 2018 16:16:10 +0100 Subject: [PATCH] ARM: dts: imx7: add CPU PMU support Message-ID: <20180227151610.21887-1-stefan@agner.ch> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 --- 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 9aa2bb998552..a6d8f35c4255 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 { /* -- 2.16.2