RK816 Power Management Integrated Circuit
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Required properties:
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- compatible: "rockchip,rk816"
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- reg: I2C slave address
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- interrupt-parent: The parent interrupt controller.
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- interrupts: the interrupt outputs of the controller.
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- #clock-cells: from common clock binding; shall be set to 1 (multiple clock
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outputs).
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Optional properties:
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- clock-output-names: From common clock binding to override the
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default output clock name
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- rockchip,system-power-controller: Telling whether or not this pmic is controlling
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the system power.
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- gpio-controller: Specifies that the node is a gpio controller when you attempt to
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use the TS pin of RK816 by GPIO general interface.
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- #gpio-cells: Should be two. The first cell is the GPIO number and the second cell
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is used to specify the GPIO polarity.
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- wakeup-source: Flag to indicate this device can wake system (suspend/resume)
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- vcc1-supply: The input supply for DCDC_REG1
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- vcc2-supply: The input supply for DCDC_REG2
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- vcc3-supply: The input supply for DCDC_REG3
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- vcc4-supply: The input supply for DCDC_REG4
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- vcc5-supply: The input supply for LDO_REG1, LDO_REG2, LDO_REG3
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- vcc6-supply: The input supply for LDO_REG4, LDO_REG5, LDO_REG6
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- regulator-initial-mode: default mode to set on startup
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- regulator-initial-mode is set as:
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REGULATOR_MODE_FAST 0x1
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REGULATOR_MODE_NORMAL 0x2
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Regulators: All the regulators of RK816 to be instantiated shall be
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listed in a child node named 'regulators'. Each regulator is represented
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by a child node of the 'regulators' node.
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regulator-name {
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/* standard regulator bindings here */
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};
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Following regulators of the RK816 PMIC block are supported. Note that
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the 'n' in regulator name, as in DCDC_REGn or LDOn, represents the DCDC or LDO
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number as described in RK816 datasheet.
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- DCDC_REGn
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- valid values for n are 1 to 4.
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- LDO_REGn
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- valid values for n are 1 to 6.
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Standard regulator bindings are used inside regulator subnodes. Check
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Documentation/devicetree/bindings/regulator/regulator.txt
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for more details
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Gpio, Rtc, Pwrkey: the node are represented like below. When you attempt to enable
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the module, setting the "status" to be "okay", otherwise "disabled".
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rtc {
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status = "okay";
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};
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pwrkey {
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status = "okay";
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};
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gpio {
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status = "okay";
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};
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Example:
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rk816: pmic@1a {
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compatible = "rockchip,rk816";
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status = "disabled";
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reg = <0x1a>;
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clock-output-names = "xin32k", "wifibt_32kin";
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interrupt-parent = <&gpio0>;
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interrupts = <1 IRQ_TYPE_LEVEL_LOW>;
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pinctrl-names = "default";
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pinctrl-0 = <&pmic_int>;
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rockchip,system-power-controller;
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wakeup-source;
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#clock-cells = <1>;
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gpio-controller;
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#gpio-cells = <2>;
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vcc1-supply = <&vcc_sys>;
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vcc2-supply = <&vcc_sys>;
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vcc3-supply = <&vcc_sys>;
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vcc4-supply = <&vcc_sys>;
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vcc5-supply = <&vcc_sys>;
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vcc6-supply = <&vcc_sys>;
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rtc {
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status = "okay";
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};
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pwrkey {
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status = "okay";
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};
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gpio {
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status = "okay";
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};
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regulators {
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vdd_cpu: DCDC_REG1 {
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regulator-name = "vdd_logic";
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <750000>;
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regulator-max-microvolt = <1450000>;
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regulator-ramp-delay = <6001>;
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regulator-initial-mode = <1>;
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regulator-state-mem {
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regulator-off-in-suspend;
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};
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};
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vdd_gpu: DCDC_REG2 {
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regulator-name = "vdd_gpu";
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <800000>;
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regulator-max-microvolt = <1250000>;
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regulator-ramp-delay = <6001>;
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regulator-initial-mode = <1>;
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regulator-state-mem {
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regulator-on-in-suspend;
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regulator-suspend-microvolt = <1000000>;
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};
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};
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vcc_ddr: DCDC_REG3 {
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regulator-always-on;
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regulator-boot-on;
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regulator-name = "vcc_ddr";
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regulator-initial-mode = <1>;
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regulator-state-mem {
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regulator-on-in-suspend;
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};
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};
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vcc33_io: DCDC_REG4 {
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-name = "vcc33_io";
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regulator-initial-mode = <1>;
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regulator-state-mem {
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regulator-on-in-suspend;
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regulator-suspend-microvolt = <3300000>;
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};
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};
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vccio_pmu: LDO_REG1 {
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-name = "vccio_pmu";
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regulator-state-mem {
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regulator-on-in-suspend;
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regulator-suspend-microvolt = <3300000>;
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};
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};
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vcc_tp: LDO_REG2 {
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-name = "vcc_tp";
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regulator-state-mem {
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regulator-off-in-suspend;
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};
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};
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vdd_10: LDO_REG3 {
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1000000>;
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regulator-name = "vdd_10";
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regulator-state-mem {
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regulator-on-in-suspend;
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regulator-suspend-microvolt = <1000000>;
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};
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};
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vcc18_lcd: LDO_REG4 {
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-name = "vcc18_lcd";
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regulator-state-mem {
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regulator-on-in-suspend;
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regulator-suspend-microvolt = <1800000>;
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};
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};
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vccio_sd: LDO_REG5 {
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <3300000>;
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regulator-name = "vccio_sd";
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regulator-state-mem {
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regulator-on-in-suspend;
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regulator-suspend-microvolt = <3300000>;
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};
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};
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vdd10_lcd: LDO_REG6 {
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regulator-always-on;
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regulator-boot-on;
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regulator-min-microvolt = <1000000>;
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regulator-max-microvolt = <1000000>;
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regulator-name = "vdd10_lcd";
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regulator-state-mem {
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regulator-on-in-suspend;
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regulator-suspend-microvolt = <1000000>;
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};
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};
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};
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};
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