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Diffstat (limited to 'Documentation/devicetree/bindings/mfd/maxim,max77686.yaml')
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diff --git a/Documentation/devicetree/bindings/mfd/maxim,max77686.yaml b/Documentation/devicetree/bindings/mfd/maxim,max77686.yaml new file mode 100644 index 000000000..d027aabe4 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/maxim,max77686.yaml @@ -0,0 +1,132 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/maxim,max77686.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Maxim MAX77686 Power Management IC + +maintainers: + - Chanwoo Choi <cw00.choi@samsung.com> + - Krzysztof Kozlowski <krzk@kernel.org> + +description: | + This is a part of device tree bindings for Maxim MAX77686 Power Management + Integrated Circuit (PMIC). + + The Maxim MAX77686 is a Power Management IC which includes voltage and + current regulators, RTC and clock outputs. + + The MAX77686 provides three 32.768khz clock outputs that can be controlled + (gated/ungated) over I2C. The clock IDs are defined as preprocessor macros + in dt-bindings/clock/maxim,max77686.h. + +properties: + compatible: + const: maxim,max77686 + + '#clock-cells': + const: 1 + + interrupts: + maxItems: 1 + + reg: + maxItems: 1 + + voltage-regulators: + $ref: ../regulator/maxim,max77686.yaml + description: + List of child nodes that specify the regulators. + + wakeup-source: true + +required: + - compatible + - '#clock-cells' + - reg + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + #include <dt-bindings/interrupt-controller/irq.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + max77686: pmic@9 { + compatible = "maxim,max77686"; + reg = <0x09>; + + interrupt-parent = <&gpx0>; + interrupts = <7 IRQ_TYPE_LEVEL_LOW>; + pinctrl-0 = <&max77686_irq>; + pinctrl-names = "default"; + wakeup-source; + #clock-cells = <1>; + + voltage-regulators { + LDO1 { + regulator-name = "VALIVE_1.0V_AP"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1000000>; + regulator-always-on; + }; + + LDO2 { + regulator-name = "VM1M2_1.2V_AP"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; + regulator-always-on; + regulator-state-mem { + regulator-on-in-suspend; + }; + }; + + // ... + + LDO22 { + regulator-name = "VMEM_VDD_2.8V"; + regulator-min-microvolt = <2800000>; + regulator-max-microvolt = <2800000>; + maxim,ena-gpios = <&gpk0 2 GPIO_ACTIVE_HIGH>; + }; + + // ... + + BUCK1 { + regulator-name = "VDD_MIF"; + regulator-min-microvolt = <850000>; + regulator-max-microvolt = <1100000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-off-in-suspend; + }; + }; + + BUCK2 { + regulator-name = "VDD_ARM"; + regulator-min-microvolt = <850000>; + regulator-max-microvolt = <1500000>; + regulator-always-on; + regulator-boot-on; + regulator-state-mem { + regulator-on-in-suspend; + }; + }; + + // ... + + BUCK9 { + regulator-name = "CAM_ISP_CORE_1.2V"; + regulator-min-microvolt = <1000000>; + regulator-max-microvolt = <1200000>; + maxim,ena-gpios = <&gpm0 3 GPIO_ACTIVE_HIGH>; + }; + }; + }; + }; |