From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Agner Subject: [PATCH] ARM: dts: imx7: add CPU PMU support Date: Tue, 27 Feb 2018 16:16:10 +0100 Message-ID: <20180227151610.21887-1-stefan@agner.ch> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: shawnguo@kernel.org, kernel@pengutronix.de Cc: fabio.estevam@nxp.com, devicetree@vger.kernel.org, Stefan Agner , linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.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