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[73.228.159.35]) by smtp.gmail.com with ESMTPSA id af79cd13be357-7d3ffdb190esm576783085a.86.2025.06.25.09.41.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Jun 2025 09:41:24 -0700 (PDT) From: Alex Elder To: lee@kernel.org, lgirdwood@gmail.com, broonie@kernel.org, alexandre.belloni@bootlin.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: mat.jonczyk@o2.pl, dlan@gentoo.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, troymitchell988@gmail.com, linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, spacemit@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v4 1/7] dt-bindings: mfd: add support the SpacemiT P1 PMIC Date: Wed, 25 Jun 2025 11:41:12 -0500 Message-ID: <20250625164119.1068842-2-elder@riscstar.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20250625164119.1068842-1-elder@riscstar.com> References: <20250625164119.1068842-1-elder@riscstar.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250625_094126_375729_7E743194 X-CRM114-Status: GOOD ( 12.95 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Enable the SpacemiT P1, which is an I2C-controlled PMIC. Initially only the RTC and regulators will be supported. Signed-off-by: Alex Elder --- .../devicetree/bindings/mfd/spacemit,p1.yaml | 86 +++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/spacemit,p1.yaml diff --git a/Documentation/devicetree/bindings/mfd/spacemit,p1.yaml b/Documentation/devicetree/bindings/mfd/spacemit,p1.yaml new file mode 100644 index 0000000000000..5cc34d4934b54 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/spacemit,p1.yaml @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/spacemit,p1.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: SpacemiT P1 Power Management Integrated Circuit + +maintainers: + - Troy Mitchell + +description: + P1 is an I2C-controlled PMIC produced by SpacemiT. It implements six + constant-on-time buck converters and twelve low-dropout regulators. + It also contains a load switch, watchdog timer, real-time clock, eight + 12-bit ADC channels, and six GPIOs. Additional details are available + in the "Power Stone/P1" section at the following link. + https://developer.spacemit.com/documentation + +properties: + compatible: + const: spacemit,p1 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + vin-supply: + description: Input supply phandle. + + regulators: + type: object + + patternProperties: + "^(buck[1-6]|aldo[1-4]|dldo[1-7])$": + type: object + $ref: /schemas/regulator/regulator.yaml# + unevaluatedProperties: false + + unevaluatedProperties: false + +required: + - compatible + - reg + - interrupts + +unevaluatedProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + pmic@41 { + compatible = "spacemit,p1"; + reg = <0x41>; + interrupts = <64>; + + regulators { + buck1 { + regulator-name = "buck1"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3450000>; + regulator-ramp-delay = <5000>; + regulator-always-on; + }; + + aldo1 { + regulator-name = "aldo1"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3400000>; + regulator-boot-on; + }; + + dldo1 { + regulator-name = "dldo1"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <3400000>; + regulator-boot-on; + }; + }; + }; + }; -- 2.45.2 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv