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From: Aurelien Jarno <aurelien@aurel32.net>
To: linux-kernel@vger.kernel.org, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>, Yixun Lan <dlan@kernel.org>,
	Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>
Cc: Aurelien Jarno <aurelien@aurel32.net>,
	devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
	FLATTENED DEVICE TREE BINDINGS),
	linux-riscv@lists.infradead.org (open list:RISC-V SPACEMIT SoC
	Support),
	spacemit@lists.linux.dev (open list:RISC-V SPACEMIT SoC Support)
Subject: [PATCH v2 1/4] riscv: dts: spacemit: Add cpu scaling for Milk-V Jupiter
Date: Wed, 29 Jul 2026 18:00:28 +0200	[thread overview]
Message-ID: <20260729160749.1621415-2-aurelien@aurel32.net> (raw)
In-Reply-To: <20260729160749.1621415-1-aurelien@aurel32.net>

Enable CPU DVFS on Milk-V Jupiter by including the OPP tables and wiring the
CPU nodes to the CPU regulator supply.

Reviewed-by: Yixun Lan <dlan@kernel.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
 .../boot/dts/spacemit/k1-milkv-jupiter.dts    | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
index c76b91ecb914d..635e95aad14a5 100644
--- a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
@@ -5,6 +5,7 @@
  */
 
 #include "k1.dtsi"
+#include "k1-opp.dtsi"
 #include "k1-pinctrl.dtsi"
 
 / {
@@ -107,6 +108,38 @@ &combo_phy {
 	status = "okay";
 };
 
+&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>;
+};
+
 &emmc {
 	bus-width = <8>;
 	mmc-hs400-1_8v;
@@ -209,7 +242,7 @@ 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: Aurelien Jarno <aurelien@aurel32.net>
To: linux-kernel@vger.kernel.org, Rob Herring <robh@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>, Yixun Lan <dlan@kernel.org>,
	Paul Walmsley <pjw@kernel.org>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Alexandre Ghiti <alex@ghiti.fr>
Cc: Aurelien Jarno <aurelien@aurel32.net>,
	devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND
	FLATTENED DEVICE TREE BINDINGS),
	linux-riscv@lists.infradead.org (open list:RISC-V SPACEMIT SoC
	Support),
	spacemit@lists.linux.dev (open list:RISC-V SPACEMIT SoC Support)
Subject: [PATCH v2 1/4] riscv: dts: spacemit: Add cpu scaling for Milk-V Jupiter
Date: Wed, 29 Jul 2026 18:00:28 +0200	[thread overview]
Message-ID: <20260729160749.1621415-2-aurelien@aurel32.net> (raw)
In-Reply-To: <20260729160749.1621415-1-aurelien@aurel32.net>

Enable CPU DVFS on Milk-V Jupiter by including the OPP tables and wiring the
CPU nodes to the CPU regulator supply.

Reviewed-by: Yixun Lan <dlan@kernel.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
---
 .../boot/dts/spacemit/k1-milkv-jupiter.dts    | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
index c76b91ecb914d..635e95aad14a5 100644
--- a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
+++ b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts
@@ -5,6 +5,7 @@
  */
 
 #include "k1.dtsi"
+#include "k1-opp.dtsi"
 #include "k1-pinctrl.dtsi"
 
 / {
@@ -107,6 +108,38 @@ &combo_phy {
 	status = "okay";
 };
 
+&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>;
+};
+
 &emmc {
 	bus-width = <8>;
 	mmc-hs400-1_8v;
@@ -209,7 +242,7 @@ 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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linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv

  reply	other threads:[~2026-07-29 16:08 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-29 16:00 [PATCH v2 0/4] riscv: dts: spacemit: Add cpu scaling for Milk-V Jupiter Aurelien Jarno
2026-07-29 16:00 ` Aurelien Jarno
2026-07-29 16:00 ` Aurelien Jarno [this message]
2026-07-29 16:00   ` [PATCH v2 1/4] " Aurelien Jarno
2026-07-29 16:00 ` [PATCH v2 2/4] riscv: dts: spacemit: Add a common board dtsi for Milk-V Jupiter boards Aurelien Jarno
2026-07-29 16:00   ` Aurelien Jarno
2026-07-29 16:00 ` [PATCH v2 3/4] dt-bindings: riscv: spacemit: add Milk-V Jupiter M1 compatible Aurelien Jarno
2026-07-29 16:00   ` Aurelien Jarno
2026-07-30  7:26   ` Krzysztof Kozlowski
2026-07-30  7:26     ` Krzysztof Kozlowski
2026-07-30 10:06     ` Aurelien Jarno
2026-07-30 10:06       ` Aurelien Jarno
2026-07-29 16:00 ` [PATCH v2 4/4] riscv: dts: spacemit: Add Milk-V Jupiter board (M1) Aurelien Jarno
2026-07-29 16:00   ` Aurelien Jarno
2026-07-30  8:54   ` Yixun Lan
2026-07-30  8:54     ` Yixun Lan
2026-07-30 10:13     ` Aurelien Jarno
2026-07-30 10:13       ` Aurelien Jarno
2026-07-30 11:29       ` Yixun Lan
2026-07-30 11:29         ` Yixun Lan

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