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[1/2] ARM: dts: r8a7745: Add PMU device node

Message ID 1540305035-22457-2-git-send-email-patryk.mungai-ndungu.kx@renesas.com (mailing list archive)
State Accepted
Delegated to: Nobuhiro Iwamatsu
Headers show
Series Add PMU support to iwg2[02]m | expand

Commit Message

Patryk Mungai Oct. 23, 2018, 2:30 p.m. UTC 
From: Geert Uytterhoeven <geert+renesas@glider.be>

Commit 9562a6b1d0f6a287f5dda16a4538526c59408927 upstream.

Enable support for the ARM Performance Monitor Units in the Cortex-A7
CPU cores on RZ/G1E by adding a device node for the PMU.

New Linux output:

    hw perfevents: enabled with armv7_cortex_a7 PMU driver, 5 counters available

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Patryk Mungai <patryk.mungai-ndungu.kx@renesas.com>
Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com>
---
 arch/arm/boot/dts/r8a7745.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

diff --git a/arch/arm/boot/dts/r8a7745.dtsi b/arch/arm/boot/dts/r8a7745.dtsi
index 69b383c..54b556b 100644
--- a/arch/arm/boot/dts/r8a7745.dtsi
+++ b/arch/arm/boot/dts/r8a7745.dtsi
@@ -93,6 +93,13 @@ 
 		};
 	};
 
+	pmu {
+		compatible = "arm,cortex-a7-pmu";
+		interrupts-extended = <&gic GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>,
+				      <&gic GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-affinity = <&cpu0>, <&cpu1>;
+	};
+
 	soc {
 		compatible = "simple-bus";
 		interrupt-parent = <&gic>;