2023-08-30 17:31:07 +02:00
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mfd/st,stpmic1.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: STMicroelectonics STPMIC1 Power Management IC
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description: STMicroelectronics STPMIC1 Power Management IC
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maintainers:
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- pascal Paillet <p.paillet@foss.st.com>
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properties:
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compatible:
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const: st,stpmic1
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reg:
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const: 0x33
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interrupts:
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maxItems: 1
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"#interrupt-cells":
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const: 2
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interrupt-controller: true
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onkey:
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type: object
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$ref: ../input/input.yaml
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properties:
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compatible:
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const: st,stpmic1-onkey
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interrupts:
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items:
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- description: onkey-falling, happens when onkey is pressed. IT_PONKEY_F of pmic
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- description: onkey-rising, happens when onkey is released. IT_PONKEY_R of pmic
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interrupt-names:
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items:
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- const: onkey-falling
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- const: onkey-rising
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st,onkey-clear-cc-flag:
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description: onkey is able power on after an over-current shutdown event.
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$ref: /schemas/types.yaml#/definitions/flag
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st,onkey-pu-inactive:
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description: onkey pull up is not active
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$ref: /schemas/types.yaml#/definitions/flag
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power-off-time-sec:
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minimum: 1
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maximum: 16
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required:
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- compatible
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- interrupts
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- interrupt-names
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additionalProperties: false
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watchdog:
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type: object
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$ref: ../watchdog/watchdog.yaml
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properties:
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compatible:
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const: st,stpmic1-wdt
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timeout-sec: true
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required:
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- compatible
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additionalProperties: false
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regulators:
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type: object
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description: |
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Available Regulators in STPMIC1 device are:
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- buck1 for Buck BUCK1
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- buck2 for Buck BUCK2
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- buck3 for Buck BUCK3
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- buck4 for Buck BUCK4
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- ldo1 for LDO LDO1
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- ldo2 for LDO LDO2
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- ldo3 for LDO LDO3
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- ldo4 for LDO LDO4
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- ldo5 for LDO LDO5
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- ldo6 for LDO LDO6
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- vref_ddr for LDO Vref DDR
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- boost for Buck BOOST
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- pwr_sw1 for VBUS_OTG switch
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- pwr_sw2 for SW_OUT switch
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Switches are fixed voltage regulators with only enable/disable capability.
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properties:
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compatible:
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const: st,stpmic1-regulators
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ldo3:
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type: object
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properties:
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interrupts:
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maxItems: 1
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st,mask-reset:
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description: mask reset for this regulator, the regulator configuration
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is maintained during pmic reset.
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$ref: /schemas/types.yaml#/definitions/flag
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regulator-name: true
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regulator-boot-on: true
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regulator-always-on: true
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regulator-min-microvolt: true
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regulator-max-microvolt: true
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regulator-allow-bypass: true
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regulator-over-current-protection: true
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additionalProperties: false
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ldo4:
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type: object
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properties:
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interrupts:
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maxItems: 1
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st,mask-reset:
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description: mask reset for this regulator, the regulator configuration
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is maintained during pmic reset.
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$ref: /schemas/types.yaml#/definitions/flag
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regulator-name: true
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regulator-boot-on: true
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regulator-always-on: true
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regulator-over-current-protection: true
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additionalProperties: false
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vref_ddr:
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type: object
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properties:
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interrupts:
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maxItems: 1
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st,mask-reset:
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description: mask reset for this regulator, the regulator configuration
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is maintained during pmic reset.
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$ref: /schemas/types.yaml#/definitions/flag
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regulator-name: true
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regulator-boot-on: true
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regulator-always-on: true
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additionalProperties: false
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boost:
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type: object
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properties:
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interrupts:
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maxItems: 1
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st,mask-reset:
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description: mask reset for this regulator, the regulator configuration
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is maintained during pmic reset.
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$ref: /schemas/types.yaml#/definitions/flag
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regulator-name: true
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regulator-boot-on: true
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regulator-always-on: true
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regulator-over-current-protection: true
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additionalProperties: false
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patternProperties:
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2023-10-24 12:59:35 +02:00
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"^(buck[1-4]|ldo[1-6]|vref_ddr|boost|pwr_sw[1-2])-supply$":
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2023-08-30 17:31:07 +02:00
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description: STPMIC1 voltage regulators supplies
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"^(buck[1-4]|ldo[1-6]|boost|vref_ddr|pwr_sw[1-2])$":
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$ref: ../regulator/regulator.yaml
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"^ldo[1-2,5-6]$":
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type: object
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properties:
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interrupts:
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maxItems: 1
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st,mask-reset:
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description: mask reset for this regulator, the regulator configuration
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is maintained during pmic reset.
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$ref: /schemas/types.yaml#/definitions/flag
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regulator-name: true
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regulator-boot-on: true
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regulator-always-on: true
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regulator-min-microvolt: true
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regulator-max-microvolt: true
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regulator-over-current-protection: true
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regulator-enable-ramp-delay: true
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additionalProperties: false
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"^buck[1-4]$":
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type: object
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properties:
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interrupts:
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maxItems: 1
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st,mask-reset:
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description: mask reset for this regulator, the regulator configuration
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is maintained during pmic reset.
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$ref: /schemas/types.yaml#/definitions/flag
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regulator-name: true
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regulator-boot-on: true
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regulator-always-on: true
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regulator-min-microvolt: true
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regulator-max-microvolt: true
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regulator-initial-mode: true
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regulator-pull-down: true
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regulator-over-current-protection: true
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regulator-enable-ramp-delay: true
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additionalProperties: false
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"^pwr_sw[1-2]$":
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type: object
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properties:
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interrupts:
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maxItems: 1
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regulator-name: true
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regulator-boot-on: true
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regulator-always-on: true
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regulator-over-current-protection: true
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regulator-active-discharge: true
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additionalProperties: false
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required:
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- compatible
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additionalProperties: false
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additionalProperties: false
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required:
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- compatible
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- reg
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- interrupts
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- "#interrupt-cells"
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- interrupt-controller
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examples:
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- |
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#include <dt-bindings/mfd/st,stpmic1.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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pmic@33 {
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compatible = "st,stpmic1";
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reg = <0x33>;
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interrupt-parent = <&gpioa>;
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interrupts = <0 2>;
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interrupt-controller;
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#interrupt-cells = <2>;
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onkey {
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compatible = "st,stpmic1-onkey";
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interrupts = <IT_PONKEY_F 0>,<IT_PONKEY_R 1>;
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interrupt-names = "onkey-falling", "onkey-rising";
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power-off-time-sec = <10>;
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};
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watchdog {
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compatible = "st,stpmic1-wdt";
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};
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regulators {
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compatible = "st,stpmic1-regulators";
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ldo6-supply = <&v3v3>;
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buck1 {
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regulator-name = "vdd_core";
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interrupts = <IT_CURLIM_BUCK1 0>;
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st,mask-reset;
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regulator-boot-on;
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regulator-min-microvolt = <700000>;
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regulator-max-microvolt = <1200000>;
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};
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buck3 {
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regulator-name = "vdd";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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regulator-pull-down;
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};
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buck4 {
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regulator-name = "v3v3";
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interrupts = <IT_CURLIM_BUCK4 0>;
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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};
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ldo6 {
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regulator-name = "v1v8";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-over-current-protection;
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};
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};
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};
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};
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...
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