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[62.151.111.63]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-42f7d331af5sm14206871f8f.31.2025.12.06.05.45.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 06 Dec 2025 05:45:40 -0800 (PST) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: Alex Elder , Javier Martinez Canillas , Albert Ou , Alexandre Ghiti , Conor Dooley , Krzysztof Kozlowski , Palmer Dabbelt , Paul Walmsley , Rob Herring , Yixun Lan , devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev Subject: [PATCH 1/3] riscv: dts: spacemit: Enable i2c8 adapter for Milk-V Jupiter Date: Sat, 6 Dec 2025 14:44:53 +0100 Message-ID: <20251206134532.1741648-2-javierm@redhat.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251206134532.1741648-1-javierm@redhat.com> References: <20251206134532.1741648-1-javierm@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The adapter is used to access the SpacemiT P1 PMIC present in this board. Signed-off-by: Javier Martinez Canillas Reviewed-by: Yixun Lan --- arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts b/arch/riscv= /boot/dts/spacemit/k1-milkv-jupiter.dts index 28afd39b28da..aa425f02c1f4 100644 --- a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts +++ b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts @@ -72,6 +72,12 @@ &pdma { status =3D "okay"; }; =20 +&i2c8 { + pinctrl-0 =3D <&i2c8_cfg>; + pinctrl-names =3D "default"; + status =3D "okay"; +}; + &uart0 { pinctrl-names =3D "default"; pinctrl-0 =3D <&uart0_2_cfg>; --=20 2.52.0 From nobody Fri Dec 19 13:25:00 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 67F2A2FD7C6 for ; Sat, 6 Dec 2025 13:45:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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[62.151.111.63]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-42f7cbfee5bsm14698899f8f.16.2025.12.06.05.45.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 06 Dec 2025 05:45:42 -0800 (PST) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: Alex Elder , Javier Martinez Canillas , Albert Ou , Alexandre Ghiti , Conor Dooley , Krzysztof Kozlowski , Palmer Dabbelt , Paul Walmsley , Rob Herring , Yixun Lan , devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev Subject: [PATCH 2/3] riscv: dts: spacemit: Define fixed regulators for Milk-V Jupiter Date: Sat, 6 Dec 2025 14:44:54 +0100 Message-ID: <20251206134532.1741648-3-javierm@redhat.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251206134532.1741648-1-javierm@redhat.com> References: <20251206134532.1741648-1-javierm@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Define the DC power input and the 4v power as fixed regulator supplies. Signed-off-by: Javier Martinez Canillas Reviewed-by: Yixun Lan --- .../boot/dts/spacemit/k1-milkv-jupiter.dts | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts b/arch/riscv= /boot/dts/spacemit/k1-milkv-jupiter.dts index aa425f02c1f4..5babed4d7094 100644 --- a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts +++ b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts @@ -20,6 +20,25 @@ aliases { chosen { stdout-path =3D "serial0"; }; + + reg_dc_in: dc-in-12v { + compatible =3D "regulator-fixed"; + regulator-name =3D "dc_in_12v"; + regulator-min-microvolt =3D <12000000>; + regulator-max-microvolt =3D <12000000>; + regulator-boot-on; + regulator-always-on; + }; + + reg_vcc_4v: vcc-4v { + compatible =3D "regulator-fixed"; + regulator-name =3D "vcc_4v"; + regulator-min-microvolt =3D <4000000>; + regulator-max-microvolt =3D <4000000>; + regulator-boot-on; + regulator-always-on; + vin-supply =3D <®_dc_in>; + }; }; =20 ð0 { --=20 2.52.0 From nobody Fri Dec 19 13:25:00 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 425172D8360 for ; 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[62.151.111.63]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4793092ba4fsm143337315e9.4.2025.12.06.05.45.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 06 Dec 2025 05:45:45 -0800 (PST) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: Alex Elder , Javier Martinez Canillas , Albert Ou , Alexandre Ghiti , Conor Dooley , Krzysztof Kozlowski , Palmer Dabbelt , Paul Walmsley , Rob Herring , Yixun Lan , devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev Subject: [PATCH 3/3] riscv: dts: spacemit: Define the P1 PMIC regulators for Milk-V Jupiter Date: Sat, 6 Dec 2025 14:44:55 +0100 Message-ID: <20251206134532.1741648-4-javierm@redhat.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: <20251206134532.1741648-1-javierm@redhat.com> References: <20251206134532.1741648-1-javierm@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Define the SpacemiT P1 PMIC voltage regulators and their constraints. The power management hardware design on the Milk-V Jupiter is identical to the Banana Pi BPI-F3, so the DT Nodes were taken from k1-bananapi-f3.dts. Signed-off-by: Javier Martinez Canillas Reviewed-by: Yixun Lan --- .../boot/dts/spacemit/k1-milkv-jupiter.dts | 110 ++++++++++++++++++ 1 file changed, 110 insertions(+) diff --git a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts b/arch/riscv= /boot/dts/spacemit/k1-milkv-jupiter.dts index 5babed4d7094..800a112d5d70 100644 --- a/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts +++ b/arch/riscv/boot/dts/spacemit/k1-milkv-jupiter.dts @@ -95,6 +95,116 @@ &i2c8 { pinctrl-0 =3D <&i2c8_cfg>; pinctrl-names =3D "default"; status =3D "okay"; + + pmic@41 { + compatible =3D "spacemit,p1"; + reg =3D <0x41>; + interrupts =3D <64>; + vin-supply =3D <®_vcc_4v>; + + regulators { + buck1 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3450000>; + regulator-ramp-delay =3D <5000>; + regulator-always-on; + }; + + buck2 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3450000>; + regulator-ramp-delay =3D <5000>; + regulator-always-on; + }; + + buck3_1v8: buck3 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <1800000>; + regulator-ramp-delay =3D <5000>; + regulator-always-on; + }; + + buck4 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3300000>; + regulator-ramp-delay =3D <5000>; + regulator-always-on; + }; + + buck5 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3450000>; + regulator-ramp-delay =3D <5000>; + regulator-always-on; + }; + + buck6 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3450000>; + regulator-ramp-delay =3D <5000>; + regulator-always-on; + }; + + aldo1 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3400000>; + regulator-boot-on; + }; + + aldo2 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3400000>; + }; + + aldo3 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3400000>; + }; + + aldo4 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3400000>; + }; + + dldo1 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3400000>; + regulator-boot-on; + }; + + dldo2 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3400000>; + }; + + dldo3 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3400000>; + }; + + dldo4 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3400000>; + regulator-always-on; + }; + + dldo5 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3400000>; + }; + + dldo6 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3400000>; + regulator-always-on; + }; + + dldo7 { + regulator-min-microvolt =3D <500000>; + regulator-max-microvolt =3D <3400000>; + }; + }; + }; }; =20 &uart0 { --=20 2.52.0