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Message-Id: <20250617102025.3455544-2-joy.zou@nxp.com>
Date: Tue, 17 Jun 2025 18:20:24 +0800
From: Joy Zou <joy.zou@....com>
To: lgirdwood@...il.com,
broonie@...nel.org,
robh@...nel.org,
krzk+dt@...nel.org,
conor+dt@...nel.org
Cc: linux-kernel@...r.kernel.org,
devicetree@...r.kernel.org,
imx@...ts.linux.dev,
frank.li@....com,
ye.li@....com,
ping.bai@....com,
aisheng.dong@....com
Subject: [PATCH v1 1/2] dt-bindings: regulator: add PF0900 regulator yaml
Add device binding doc for PF0900 PMIC driver.
Signed-off-by: Joy Zou <joy.zou@....com>
---
.../regulator/nxp,pf0900-regulator.yaml | 179 ++++++++++++++++++
1 file changed, 179 insertions(+)
create mode 100644 Documentation/devicetree/bindings/regulator/nxp,pf0900-regulator.yaml
diff --git a/Documentation/devicetree/bindings/regulator/nxp,pf0900-regulator.yaml b/Documentation/devicetree/bindings/regulator/nxp,pf0900-regulator.yaml
new file mode 100644
index 000000000000..32e2ded92e2c
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/nxp,pf0900-regulator.yaml
@@ -0,0 +1,179 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/nxp,pf0900-regulator.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP PF0900 Power Management Integrated Circuit regulators
+
+maintainers:
+ - Joy Zou <joy.zou@....com>
+
+description:
+ The PF0900 is a power management integrated circuit (PMIC) optimized
+ for high performance i.MX9x based applications. It features five high
+ efficiency buck converters, three linear and one vaon regulators. It
+ provides low quiescent current in Standby and low power off Modes.
+
+properties:
+ compatible:
+ enum:
+ - nxp,pf0900
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ regulators:
+ type: object
+
+ properties:
+ "VAON":
+ type: object
+ $ref: regulator.yaml#
+
+ unevaluatedProperties: false
+
+ patternProperties:
+ "^LDO[1-3]$":
+ type: object
+ $ref: regulator.yaml#
+ description:
+ Properties for single LDO regulator.
+
+ unevaluatedProperties: false
+
+ "^SW[1-5]$":
+ type: object
+ $ref: regulator.yaml#
+ description:
+ Properties for single SW regulator.
+
+ properties:
+ nxp,dvs-run-microvolt:
+ minimum: 300000
+ maximum: 1350000
+ description:
+ PMIC default "RUN" state voltage in uV. SW1~5 have such
+ dvs(dynamic voltage scaling) property.
+
+ nxp,dvs-standby-microvolt:
+ minimum: 300000
+ maximum: 1350000
+ description:
+ PMIC default "STANDBY" state voltage in uV. SW1~5 have such
+ dvs(dynamic voltage scaling) property.
+
+ unevaluatedProperties: false
+
+ additionalProperties: false
+
+ nxp,i2c-crc-enable:
+ type: boolean
+ description: If the PMIC OTP_I2C_CRC_EN is enable, you need to add this property.
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - regulators
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmic@8 {
+ compatible = "nxp,pf0900";
+ reg = <0x08>;
+ interrupt-parent = <&pcal6524>;
+ interrupts = <89 IRQ_TYPE_LEVEL_LOW>;
+ nxp,i2c-crc-enable;
+
+ regulators {
+ VAON {
+ regulator-name = "VAON";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ SW1 {
+ regulator-name = "SW1";
+ regulator-min-microvolt = <500000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <1950>;
+ };
+
+ SW2 {
+ regulator-name = "SW2";
+ regulator-min-microvolt = <300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <1950>;
+ };
+
+ SW3 {
+ regulator-name = "SW3";
+ regulator-min-microvolt = <300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <1950>;
+ };
+
+ SW4 {
+ regulator-name = "SW4";
+ regulator-min-microvolt = <300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <1950>;
+ };
+
+ SW5 {
+ regulator-name = "SW5";
+ regulator-min-microvolt = <300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ regulator-ramp-delay = <1950>;
+ };
+
+ LDO1 {
+ regulator-name = "LDO1";
+ regulator-min-microvolt = <750000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ LDO2 {
+ regulator-name = "LDO2";
+ regulator-min-microvolt = <650000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+
+ LDO3 {
+ regulator-name = "LDO3";
+ regulator-min-microvolt = <650000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ regulator-always-on;
+ };
+ };
+ };
+ };
--
2.37.1
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