linux-kernel - [PATCH v2] arm64: dts: qcom: sc7280: Fix PMU nodes for Cortex A55 and A78

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Message-ID: <20240830191438.31613-1-danila@jiaxyga.com>
Date: Fri, 30 Aug 2024 22:14:38 +0300
From: Danila Tikhonov <danila@...xyga.com>
To: andersson@...nel.org,
	konradybcio@...nel.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	dmitry.baryshkov@...aro.org,
	stephan.gerhold@...aro.org,
	caleb.connolly@...aro.org
Cc: cros-qcom-dts-watchers@...omium.org,
	linux-arm-msm@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Danila Tikhonov <danila@...xyga.com>
Subject: [PATCH v2] arm64: dts: qcom: sc7280: Fix PMU nodes for Cortex A55 and A78

The SC7280, SM7325, and QCM6490 platforms feature an 8-core setup
consisting of:
- 1x Kryo 670 Prime (Cortex-A78) / Kryo 670 Gold Plus (Cortex-A78)
- 3x Kryo 670 Gold (Cortex-A78)
- 4x Kryo 670 Silver (Cortex-A55)
(The CPU cores in the SC7280 are simply called Kryo, but are
nevertheless based on the same Cortex A78 and A55).

Use the correct compatibility.

Signed-off-by: Danila Tikhonov <danila@...xyga.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Reviewed-by: Caleb Connolly <caleb.connolly@...aro.org>

---
Changes in v2:
- Add R-b tags (Dmitry & Caleb)
- Remove the ".dtsi" part from the commit message (Luca)
- Link to v1:
https://lore.kernel.org/all/20240818192905.120477-1-danila@jiaxyga.com/
---
 arch/arm64/boot/dts/qcom/sc7280.dtsi | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 3d8410683402..9d14a70c307e 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -845,8 +845,13 @@ wlan_smp2p_in: wlan-wpss-to-ap {
 		};
 	};
 
-	pmu {
-		compatible = "arm,armv8-pmuv3";
+	pmu-a55 {
+		compatible = "arm,cortex-a55-pmu";
+		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
+	};
+
+	pmu-a78 {
+		compatible = "arm,cortex-a78-pmu";
 		interrupts = <GIC_PPI 7 IRQ_TYPE_LEVEL_LOW>;
 	};
 
-- 
2.46.0