linux-kernel - [PATCH 2/2] ARM: dts: imx6dl: add pmu interrupt-affinity

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Date:   Fri, 18 Jan 2019 14:59:07 +0100
From:   Stefan Agner <stefan@...er.ch>
To:     shawnguo@...nel.org, s.hauer@...gutronix.de
Cc:     max.krummenacher@...adex.com, marcel.ziswiler@...adex.com,
        dev@...henker.ch, kernel@...gutronix.de, fabio.estevam@....com,
        linux-imx@....com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Stefan Agner <stefan@...er.ch>
Subject: [PATCH 2/2] ARM: dts: imx6dl: add pmu interrupt-affinity

Explicitly specify interrupt affinity to avoid HW perfevents
need to guess. This avoids the following error upon boot:
  hw perfevents: no interrupt-affinity property for /pmu, guessing.

Specifying all four CPUs shows no aversive effects on i.MX 6Solo
SoCs.

Signed-off-by: Stefan Agner <stefan@...er.ch>
---
 arch/arm/boot/dts/imx6dl-tx6s-8034.dts | 4 ++++
 arch/arm/boot/dts/imx6dl-tx6s-8035.dts | 4 ++++
 arch/arm/boot/dts/imx6dl.dtsi          | 5 +++++
 3 files changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/imx6dl-tx6s-8034.dts b/arch/arm/boot/dts/imx6dl-tx6s-8034.dts
index 9eb2ef17339c..f1606f63d687 100644
--- a/arch/arm/boot/dts/imx6dl-tx6s-8034.dts
+++ b/arch/arm/boot/dts/imx6dl-tx6s-8034.dts
@@ -68,3 +68,7 @@
 		MX6QDL_PAD_SD3_CMD__GPIO7_IO02		0x170b0 /* SD1 CD */
 	>;
 };
+
+&pmu {
+	interrupt-affinity = <&{/cpus/cpu@0}>;
+};
diff --git a/arch/arm/boot/dts/imx6dl-tx6s-8035.dts b/arch/arm/boot/dts/imx6dl-tx6s-8035.dts
index a5532ecc18c5..b3bf1f80aff0 100644
--- a/arch/arm/boot/dts/imx6dl-tx6s-8035.dts
+++ b/arch/arm/boot/dts/imx6dl-tx6s-8035.dts
@@ -84,3 +84,7 @@
 		>;
 	};
 };
+
+&pmu {
+	interrupt-affinity = <&{/cpus/cpu@0}>;
+};
diff --git a/arch/arm/boot/dts/imx6dl.dtsi b/arch/arm/boot/dts/imx6dl.dtsi
index f0607eb41df4..3c8b533b3039 100644
--- a/arch/arm/boot/dts/imx6dl.dtsi
+++ b/arch/arm/boot/dts/imx6dl.dtsi
@@ -386,6 +386,11 @@
 			<0x28 0x0000000c>; /* DCIC2_MUX_CTL */
 };
 
+&pmu {
+	interrupt-affinity = <&{/cpus/cpu@0}>,
+			     <&{/cpus/cpu@1}>;
+};
+
 &vpu {
 	compatible = "fsl,imx6dl-vpu", "cnm,coda960";
 };
-- 
2.20.1