103 lines
3.0 KiB
Plaintext
103 lines
3.0 KiB
Plaintext
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* ROHM BD70528 Power Management Integrated Circuit bindings
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BD70528MWV is an ultra-low quiescent current general purpose, single-chip,
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power management IC for battery-powered portable devices. The IC
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integrates 3 ultra-low current consumption buck converters, 3 LDOs and 2
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LED Drivers. Also included are 4 GPIOs, a real-time clock (RTC), a 32kHz
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clock gate, high-accuracy VREF for use with an external ADC, flexible
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dual-input power path, 10 bit SAR ADC for battery temperature monitor and
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1S battery charger with scalable charge currents.
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Required properties:
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- compatible : Should be "rohm,bd70528"
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- reg : I2C slave address.
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- interrupts : The interrupt line the device is connected to.
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- interrupt-controller : To indicate BD70528 acts as an interrupt controller.
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- #interrupt-cells : Should be 2. Usage is compliant to the 2 cells
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variant of ../interrupt-controller/interrupts.txt
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- gpio-controller : To indicate BD70528 acts as a GPIO controller.
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- #gpio-cells : Should be 2. The first cell is the pin number and
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the second cell is used to specify flags. See
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../gpio/gpio.txt for more information.
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- #clock-cells : Should be 0.
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- regulators: : List of child nodes that specify the regulators.
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Please see ../regulator/rohm,bd70528-regulator.txt
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Optional properties:
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- clock-output-names : Should contain name for output clock.
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Example:
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/* External oscillator */
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osc: oscillator {
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compatible = "fixed-clock";
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#clock-cells = <1>;
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clock-frequency = <32768>;
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clock-output-names = "osc";
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};
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pmic: pmic@4b {
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compatible = "rohm,bd70528";
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reg = <0x4b>;
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interrupt-parent = <&gpio1>;
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interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
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clocks = <&osc 0>;
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#clock-cells = <0>;
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clock-output-names = "bd70528-32k-out";
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#gpio-cells = <2>;
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gpio-controller;
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interrupt-controller;
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#interrupt-cells = <2>;
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regulators {
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buck1: BUCK1 {
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regulator-name = "buck1";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3400000>;
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regulator-boot-on;
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regulator-ramp-delay = <125>;
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};
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buck2: BUCK2 {
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regulator-name = "buck2";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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regulator-ramp-delay = <125>;
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};
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buck3: BUCK3 {
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regulator-name = "buck3";
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regulator-min-microvolt = <800000>;
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regulator-max-microvolt = <1800000>;
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regulator-boot-on;
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regulator-ramp-delay = <250>;
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};
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ldo1: LDO1 {
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regulator-name = "ldo1";
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regulator-min-microvolt = <1650000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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};
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ldo2: LDO2 {
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regulator-name = "ldo2";
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regulator-min-microvolt = <1650000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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};
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ldo3: LDO3 {
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regulator-name = "ldo3";
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regulator-min-microvolt = <1650000>;
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regulator-max-microvolt = <3300000>;
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};
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led_ldo1: LED_LDO1 {
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regulator-name = "led_ldo1";
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regulator-min-microvolt = <200000>;
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regulator-max-microvolt = <300000>;
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};
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led_ldo2: LED_LDO2 {
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regulator-name = "led_ldo2";
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regulator-min-microvolt = <200000>;
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regulator-max-microvolt = <300000>;
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};
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};
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};
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