From: Stefan Agner <stefan@agner.ch>
Date: Tue, 27 Feb 2018 15:16:10 +0000 (+0100)
Subject: ARM: dts: imx7: add CPU PMU support
X-Git-Tag: v4.17-rc1~105^2~6^2~16
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=a934a5834d59d8529da228aec1f3f89d1be225e9;p=uclinux-h8%2Flinux.git

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 <stefan@agner.ch>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

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 = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-affinity = <&cpu0>;
+	};
 
 	replicator {
 		/*