From: ChiYuan Huang <cy_huang@xxxxxxxxxxx> Add Richtek RT5120 PMIC devicetree document. Signed-off-by: ChiYuan Huang <cy_huang@xxxxxxxxxxx> --- Since v2: - Add 'unevaluatedProperties: false' for regulator buck1~4/ldo/exten. - Fix indention and remove status for powerkey. - Refine powerkey description for more HW details. --- .../devicetree/bindings/mfd/richtek,rt5120.yaml | 178 +++++++++++++++++++++ 1 file changed, 178 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/richtek,rt5120.yaml diff --git a/Documentation/devicetree/bindings/mfd/richtek,rt5120.yaml b/Documentation/devicetree/bindings/mfd/richtek,rt5120.yaml new file mode 100644 index 00000000..f73b8b2 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/richtek,rt5120.yaml @@ -0,0 +1,178 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/richtek,rt5120.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Richtek RT5120 PMIC + +maintainers: + - ChiYuan Huang <cy_huang@xxxxxxxxxxx> + +description: | + The RT5120 provides four high-efficiency buck converters and one LDO voltage + regulator. The device is targeted at providingthe processor voltage, memory, + I/O, and peripheral rails in home entertainment devices. The I2C interface is + used for dynamic voltage scaling of the processor voltage, power rails on/off + sequence control, operation mode selection. + +properties: + compatible: + enum: + - richtek,rt5120 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + interrupt-controller: true + + "#interrupt-cells": + const: 1 + + wakeup-source: true + + richtek,enable-undervolt-hiccup: + type: boolean + description: | + If used, under voltage protection trigger hiccup behavior, else latchup as + default + + richtek,enable-overvolt-hiccup: + type: boolean + description: + Like as 'enable-uv-hiccup', it configures over voltage protection to + hiccup, else latchup as default + + vin1-supply: + description: phandle for buck1 input power source + + vin2-supply: + description: phandle for buck2 input power source + + vin3-supply: + description: phandle for buck3 input power source + + vin4-supply: + description: phandle for buck4 input power source + + vinldo-supply: + description: phandle for ldo input power source + + regulators: + type: object + + patternProperties: + "^buck[1-4]$": + type: object + $ref: /schemas/regulator/regulator.yaml# + unevaluatedProperties: false + + properties: + regulator-allowed-modes: + description: | + Used to specify the allowed buck converter operating mode + mode mapping: + 0: auto mode + 1: force pwm mode + items: + enum: [0, 1] + + "^(ldo|exten)$": + type: object + $ref: /schemas/regulator/regulator.yaml# + unevaluatedProperties: false + + additionalProperties: false + + powerkey: + type: object + description: + PON key that connected to RT5120 PMIC. + + properties: + compatible: + enum: + - richtek,rt5120-pwrkey + + required: + - compatible + + additionalProperties: false + +required: + - compatible + - reg + - interrupts + - '#interrupt-cells' + - interrupt-controller + - regulators + - powerkey + +additionalProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + pmic@62 { + compatible = "richtek,rt5120"; + reg = <0x62>; + interrupts-extended = <&gpio_intc 32 IRQ_TYPE_LEVEL_LOW>; + interrupt-controller; + #interrupt-cells = <1>; + wakeup-source; + + regulators { + buck1 { + regulator-name = "rt5120-buck1"; + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <1393750>; + regulator-allowed-modes = <0 1>; + regulator-boot-on; + }; + buck2 { + regulator-name = "rt5120-buck2"; + regulator-min-microvolt = <1100000>; + regulator-max-microvolt = <1100000>; + regulator-allowed-modes = <0 1>; + regulator-always-on; + }; + buck3 { + regulator-name = "rt5120-buck3"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-allowed-modes = <0 1>; + regulator-always-on; + }; + buck4 { + regulator-name = "rt5120-buck4"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-allowed-modes = <0 1>; + regulator-always-on; + }; + ldo { + regulator-name = "rt5120-ldo"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; + regulator-always-on; + }; + exten { + regulator-name = "rt5120-exten"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3000000>; + regulator-always-on; + }; + }; + powerkey { + compatible = "richtek,rt5120-pwrkey"; + }; + }; + }; -- 2.7.4
