linux-kernel - [PATCH 5.3 007/140] arm64: dts: allwinner: a64: Drop PMU node

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Message-Id: <20191108174901.368958757@linuxfoundation.org>
Date:   Fri,  8 Nov 2019 19:48:55 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Harald Geyer <harald@...ib.org>,
        "Jared D. McNeill" <jmcneill@...BSD.org>,
        Vasily Khoruzhick <anarsoul@...il.com>,
        Emmanuel Vadot <manu@...eBSD.org>,
        Maxime Ripard <mripard@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.3 007/140] arm64: dts: allwinner: a64: Drop PMU node

From: Vasily Khoruzhick <anarsoul@...il.com>

[ Upstream commit ed3e9406bcbc32f84dc4aa4cb4767852e5ab086c ]

Looks like PMU in A64 is broken, it generates no interrupts at all and
as result 'perf top' shows no events.

Tested on Pine64-LTS.

Fixes: 34a97fcc71c2 ("arm64: dts: allwinner: a64: Add PMU node")
Cc: Harald Geyer <harald@...ib.org>
Cc: Jared D. McNeill <jmcneill@...BSD.org>
Signed-off-by: Vasily Khoruzhick <anarsoul@...il.com>
Reviewed-by: Emmanuel Vadot <manu@...eBSD.org>
Signed-off-by: Maxime Ripard <mripard@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 9cc9bdde81ac2..cd92f546c4838 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -142,15 +142,6 @@
 		clock-output-names = "ext-osc32k";
 	};
 
-	pmu {
-		compatible = "arm,cortex-a53-pmu";
-		interrupts = <GIC_SPI 152 IRQ_TYPE_LEVEL_HIGH>,
-			     <GIC_SPI 153 IRQ_TYPE_LEVEL_HIGH>,
-			     <GIC_SPI 154 IRQ_TYPE_LEVEL_HIGH>,
-			     <GIC_SPI 155 IRQ_TYPE_LEVEL_HIGH>;
-		interrupt-affinity = <&cpu0>, <&cpu1>, <&cpu2>, <&cpu3>;
-	};
-
 	psci {
 		compatible = "arm,psci-0.2";
 		method = "smc";
-- 
2.20.1