Add a devicetree binding documentation for the pf8x00 regulator driver. Signed-off-by: Adrien Grassein <adrien.grassein@xxxxxxxxx> --- .../regulator/nxp,pf8x00-regulator.yaml | 220 ++++++++++++++++++ MAINTAINERS | 6 + 2 files changed, 226 insertions(+) create mode 100644 Documentation/devicetree/bindings/regulator/nxp,pf8x00-regulator.yaml diff --git a/Documentation/devicetree/bindings/regulator/nxp,pf8x00-regulator.yaml b/Documentation/devicetree/bindings/regulator/nxp,pf8x00-regulator.yaml new file mode 100644 index 000000000000..a17ab3b22913 --- /dev/null +++ b/Documentation/devicetree/bindings/regulator/nxp,pf8x00-regulator.yaml @@ -0,0 +1,220 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/regulator/nxp,pf8x00-regulator.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NXP PF8x00 Power Management Integrated Circuit regulators + +maintainers: + - Adrien Grassein <adrien.grassein@xxxxxxxxx> + +description: + pf8x00 are a 12-chanel regulator PMIC family. Regulators nodes should + be named to ldo<>, sw<> and vnss. The definition for each of these nodes + is defined using the standard binding for regulators at + Documentation/devicetree/bindings/regulator/regulator.txt. + Datasheet is available at https://www.nxp.com/docs/en/data-sheet/PF8100_PF8200.pdf + +properties: + compatible: + enum: + - nxp,pf8100 + - nxp,pf8121a + - nxp,pf8200 + + reg: + maxItems: 1 + + regulators: + type: object + description: + list of regulators provided by this controller + + patternProperties: + "^ldo[1-4]$": + type: object + $ref: regulator.yaml# + description: + Properties for single LDO regulator. + + properties: + nxp,hw-en: + $ref: /schemas/types.yaml#definitions/flag + description: + Only available for ldo2. If present, use LDO2EN input pin + to enable or disable ldo2. (LDO2EN should be in HIGH state + to enable LDO2 if nxp,hw-en is specified). + + nxp,vselect-en: + $ref: /schemas/types.yaml#definitions/flag + description: + Only available for ldo2. When specified, use the VSELECT + input pin of the chip to control the output voltage of the + ldo02 regulator. (3.3V if VSELECT is LOW, 1.8V if HIGH). + + unevaluatedProperties: false + + "^sw[1-7]$": + type: object + $ref: regulator.yaml# + description: + Properties for single SW regulator. + + properties: + nxp,phase: + $ref: /schemas/types.yaml#definitions/uint32 + minimum: 0 + maximum: 315 + enum: [ 0, 45, 90, 135, 180, 225, 270, 315 ] + description: + This controls the phase shift of the switching frequency. + Default value is the one written in the OTP configuration. + + nxp,fast-slew: + $ref: /schemas/types.yaml#definitions/flag + description: + Enables the fast DVS ramp of the regulator. + Default is slow DVS ramp. + Not available for sw7 regulator. + Default value is the one written in the OTP configuration. + + nxp,dual-phase: + $ref: /schemas/types.yaml#definitions/flag + description: + This allow regulators sw1 and sw2, sw3 and sw4, sw5 and sw6, + to work together to deliver a maximum 5A current. + Should be only specified for sw1, sw3 and sw5. + If set, sw2, sw4 and sw6 configuration will be totally ignored. + This is not a configuration property. It's only used to control + the consistency of the OTP confguration. + + nxp,quad-phase: + $ref: /schemas/types.yaml#definitions/flag + description: + This allow regulators sw1, sw2, sw3 and sw4 to work together + to deliver a maximum 10A current. Should be only specified for + sw1. If set, sw2, sw3 and sw4 configuration will be totally ignored. + This is not a configuration property. It's only used to control + the consistency of the OTP confguration. + + unevaluatedProperties: false + + properties: + vsnvs: + type: object + $ref: regulator.yaml# + description: + Properties for vsnvs regulator. + + unevaluatedProperties: false + + additionalProperties: false + +required: + - compatible + - reg + - regulators + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + pmic@8 { + compatible = "nxp,pf8100"; + reg = <0x08>; + + regulators { + reg_ldo1: ldo1 { + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <5000000>; + regulator-min-microvolt = <1500000>; + }; + + reg_ldo2: ldo2 { + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <5000000>; + regulator-min-microvolt = <1500000>; + }; + + reg_ldo3: ldo3 { + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <5000000>; + regulator-min-microvolt = <1500000>; + }; + + reg_ldo4: ldo4 { + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <5000000>; + regulator-min-microvolt = <1500000>; + }; + + reg_sw1: sw1 { + nxp,phase = <0>; + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <1800000>; + regulator-min-microvolt = <400000>; + regulator-max-microamp = <4500000>; + }; + + reg_sw2: sw2 { + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <1800000>; + regulator-min-microvolt = <400000>; + }; + + reg_sw3: sw3 { + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <1800000>; + regulator-min-microvolt = <400000>; + nxp,fast-slew; + }; + + reg_sw4: sw4 { + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <1800000>; + regulator-min-microvolt = <400000>; + nxp,fast-slew; + }; + + reg_sw5: sw5 { + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <1800000>; + regulator-min-microvolt = <400000>; + }; + + reg_sw6: sw6 { + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <1800000>; + regulator-min-microvolt = <400000>; + }; + + reg_sw7: sw7 { + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <4100000>; + regulator-min-microvolt = <1000000>; + }; + + reg_vsnvs: vsnvs { + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <1800000>; + }; + }; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index fb75813e23d4..878e6f25aab7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13804,6 +13804,12 @@ S: Maintained F: include/linux/personality.h F: include/uapi/linux/personality.h +PF8x00 PMIC REGULATORS DRIVERS +M: Adrien Grassein <adrien.grassein@xxxxxxxxx> +L: linux-kernel@xxxxxxxxxxxxxxx +S: Maintained +F: Documentation/devicetree/bindings/regulator/nxp,pf8x00-regulator.yaml + PHOENIX RC FLIGHT CONTROLLER ADAPTER M: Marcus Folkesson <marcus.folkesson@xxxxxxxxx> L: linux-input@xxxxxxxxxxxxxxx -- 2.20.1
