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From: Andre Heider <a.heider@gmail.com>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>, Yixun Lan <dlan@kernel.org>
Cc: Jonatan Hazell <jonatanh@hotmail.com>,
	devicetree@vger.kernel.org, linux-riscv@lists.infradead.org,
	spacemit@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH 3/3] riscv: dts: spacemit: orangepi-r2s: Add cpu scaling for K1 SoC
Date: Tue,  4 Aug 2026 15:32:34 +0200	[thread overview]
Message-ID: <20260804133236.205668-4-a.heider@gmail.com> (raw)
In-Reply-To: <20260804133236.205668-1-a.heider@gmail.com>

From: Jonatan Hazell <jonatanh@hotmail.com>

Enable CPU DVFS on OrangePi R2S by including the shared K1 OPP tables
and wiring the CPU cores to the P1 PMIC's buck1 rail.

This mirrors the existing cpu-scaling support for the Banana Pi BPI-F3
and OrangePi RV2. Tested on the R2S hardware.

Signed-off-by: Jonatan Hazell <jonatanh@hotmail.com>
---
 .../boot/dts/spacemit/k1-orangepi-r2s.dts     | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
index 2d1ba34cb00e..6ebd4334410e 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
@@ -6,6 +6,7 @@
 /dts-v1/;
 
 #include "k1.dtsi"
+#include "k1-opp.dtsi"
 #include "k1-pinctrl.dtsi"
 
 / {
@@ -50,6 +51,38 @@ vcc5v0_usb: regulator-vcc5v0-usb {
 	};
 };
 
+&cpu_0 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_1 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_2 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_3 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_4 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_5 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_6 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_7 {
+	cpu-supply = <&buck1_0v9>;
+};
+
 &combo_phy {
 	status = "okay";
 };
@@ -132,7 +165,7 @@ pmic@41 {
 		dldoin2-supply = <&buck5>;
 
 		regulators {
-			buck1 {
+			buck1_0v9: buck1 {
 				regulator-min-microvolt = <500000>;
 				regulator-max-microvolt = <1050000>;
 				regulator-ramp-delay = <5000>;
-- 
2.53.0


WARNING: multiple messages have this Message-ID (diff)
From: Andre Heider <a.heider@gmail.com>
To: Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>, Yixun Lan <dlan@kernel.org>
Cc: Jonatan Hazell <jonatanh@hotmail.com>,
	devicetree@vger.kernel.org, linux-riscv@lists.infradead.org,
	spacemit@lists.linux.dev, linux-kernel@vger.kernel.org
Subject: [PATCH 3/3] riscv: dts: spacemit: orangepi-r2s: Add cpu scaling for K1 SoC
Date: Tue,  4 Aug 2026 15:32:34 +0200	[thread overview]
Message-ID: <20260804133236.205668-4-a.heider@gmail.com> (raw)
In-Reply-To: <20260804133236.205668-1-a.heider@gmail.com>

From: Jonatan Hazell <jonatanh@hotmail.com>

Enable CPU DVFS on OrangePi R2S by including the shared K1 OPP tables
and wiring the CPU cores to the P1 PMIC's buck1 rail.

This mirrors the existing cpu-scaling support for the Banana Pi BPI-F3
and OrangePi RV2. Tested on the R2S hardware.

Signed-off-by: Jonatan Hazell <jonatanh@hotmail.com>
---
 .../boot/dts/spacemit/k1-orangepi-r2s.dts     | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
index 2d1ba34cb00e..6ebd4334410e 100644
--- a/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-orangepi-r2s.dts
@@ -6,6 +6,7 @@
 /dts-v1/;
 
 #include "k1.dtsi"
+#include "k1-opp.dtsi"
 #include "k1-pinctrl.dtsi"
 
 / {
@@ -50,6 +51,38 @@ vcc5v0_usb: regulator-vcc5v0-usb {
 	};
 };
 
+&cpu_0 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_1 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_2 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_3 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_4 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_5 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_6 {
+	cpu-supply = <&buck1_0v9>;
+};
+
+&cpu_7 {
+	cpu-supply = <&buck1_0v9>;
+};
+
 &combo_phy {
 	status = "okay";
 };
@@ -132,7 +165,7 @@ pmic@41 {
 		dldoin2-supply = <&buck5>;
 
 		regulators {
-			buck1 {
+			buck1_0v9: buck1 {
 				regulator-min-microvolt = <500000>;
 				regulator-max-microvolt = <1050000>;
 				regulator-ramp-delay = <5000>;
-- 
2.53.0


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  parent reply	other threads:[~2026-08-04 13:32 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-04 13:32 [PATCH 0/3] riscv: dts: spacemit: add cpu scaling for 3 boards Andre Heider
2026-08-04 13:32 ` Andre Heider
2026-08-04 13:32 ` [PATCH 1/3] riscv: dts: spacemit: k1-musepi-pro: add cpu scaling Andre Heider
2026-08-04 13:32   ` Andre Heider
2026-08-04 13:32 ` [PATCH 2/3] riscv: dts: spacemit: orangepi-rv2: Add cpu scaling for K1 SoC Andre Heider
2026-08-04 13:32   ` Andre Heider
2026-08-04 13:32 ` Andre Heider [this message]
2026-08-04 13:32   ` [PATCH 3/3] riscv: dts: spacemit: orangepi-r2s: " Andre Heider

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