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Message-Id: <20250721-b4-pf09-v2-v2-1-e2c568548032@nxp.com>
Date: Mon, 21 Jul 2025 15:11:27 +0800
From: Joy Zou <joy.zou@....com>
To: Joy Zou <joy.zou@....com>, Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
imx@...ts.linux.dev, Frank Li <Frank.Li@....com>, Ye Li <ye.li@....com>,
Jacky Bai <ping.bai@....com>, Dong Aisheng <aisheng.dong@....com>
Subject: [PATCH v2 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>
---
Changes for v2:
1. modify the binding file name to match compatible string.
2. add one space for dt_binding_check warning.
3. remove unnecessary quotes from "VAON".
4. remove the unnecessary empty line.
5. move unevaluatedProperties after the $ref.
6. move additionalProperties after regulator type.
7. remove unnecessary regulator description
---
.../devicetree/bindings/regulator/nxp,pf0900.yaml | 169 +++++++++++++++++++++
1 file changed, 169 insertions(+)
diff --git a/Documentation/devicetree/bindings/regulator/nxp,pf0900.yaml b/Documentation/devicetree/bindings/regulator/nxp,pf0900.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..55cfe9ad5c5c24b47d5a806985e092e279755064
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/nxp,pf0900.yaml
@@ -0,0 +1,169 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/regulator/nxp,pf0900.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
+ additionalProperties: false
+
+ properties:
+ VAON:
+ type: object
+ $ref: regulator.yaml#
+ unevaluatedProperties: false
+
+ patternProperties:
+ "^LDO[1-3]$":
+ type: object
+ $ref: regulator.yaml#
+ unevaluatedProperties: false
+
+ "^SW[1-5]$":
+ type: object
+ $ref: regulator.yaml#
+ unevaluatedProperties: false
+
+ properties:
+ nxp,dvs-run-microvolt:
+ minimum: 300000
+ maximum: 1350000
+ description:
+ PMIC default "RUN" state voltage in uV.
+
+ nxp,dvs-standby-microvolt:
+ minimum: 300000
+ maximum: 1350000
+ description:
+ PMIC default "STANDBY" state voltage in uV.
+
+ 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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