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From:   Nishanth Menon <nm@ti.com>
To:     Sudeep Holla <sudeep.holla@arm.com>, Suman Anna <s-anna@ti.com>,
        Dave Gerlach <d-gerlach@ti.com>
CC:     Tero Kristo <kristo@kernel.org>, Rob Herring <robh+dt@kernel.org>,
        <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>, Nishanth Menon <nm@ti.com>
Subject: [PATCH] arm64: dts: ti: k3*: Fixup PMU compatibility to be CPU specific
Date:   Wed, 20 Jan 2021 13:51:45 -0600
Message-ID: <20210120195145.32259-1-nm@ti.com>
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We can use CPU specific pmu configuration to expose the appropriate
CPU specific events rather than just the basic generic pmuv3 perf
events.

Reported-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
---

AM65: https://pastebin.ubuntu.com/p/TF2cCMySkt/
J721E: https://pastebin.ubuntu.com/p/jgGPNmNgG3/
J7200: https://pastebin.ubuntu.com/p/Kfc3VHHXNB/

Original report: https://lore.kernel.org/linux-arm-kernel/20210119172412.smsjdo2sjzqi5vcn@bogus/

I have'nt split this patch up for fixes tag primarily because the
basic functionality works and this is an improvement than a critical
fixup to backport for older kernels.

 arch/arm64/boot/dts/ti/k3-am65.dtsi  | 2 +-
 arch/arm64/boot/dts/ti/k3-j7200.dtsi | 2 +-
 arch/arm64/boot/dts/ti/k3-j721e.dtsi | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/boot/dts/ti/k3-am65.dtsi b/arch/arm64/boot/dts/ti/k3-am65.dtsi
index d84c0bc05023..a9fc1af03f27 100644
--- a/arch/arm64/boot/dts/ti/k3-am65.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65.dtsi
@@ -56,7 +56,7 @@ a53_timer0: timer-cl0-cpu0 {
 	};
 
 	pmu: pmu {
-		compatible = "arm,armv8-pmuv3";
+		compatible = "arm,cortex-a53-pmu";
 		/* Recommendation from GIC500 TRM Table A.3 */
 		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
 	};
diff --git a/arch/arm64/boot/dts/ti/k3-j7200.dtsi b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
index 66169bcf7c9a..b7005b803149 100644
--- a/arch/arm64/boot/dts/ti/k3-j7200.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j7200.dtsi
@@ -114,7 +114,7 @@ a72_timer0: timer-cl0-cpu0 {
 	};
 
 	pmu: pmu {
-		compatible = "arm,armv8-pmuv3";
+		compatible = "arm,cortex-a72-pmu";
 		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
 	};
 
diff --git a/arch/arm64/boot/dts/ti/k3-j721e.dtsi b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
index cc483f7344af..f0587fde147e 100644
--- a/arch/arm64/boot/dts/ti/k3-j721e.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
@@ -115,7 +115,7 @@ a72_timer0: timer-cl0-cpu0 {
 	};
 
 	pmu: pmu {
-		compatible = "arm,armv8-pmuv3";
+		compatible = "arm,cortex-a72-pmu";
 		/* Recommendation from GIC500 TRM Table A.3 */
 		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_HIGH>;
 	};
-- 
2.25.1.377.g2d2118b814c1