xref: /OK3568_Linux_fs/kernel/Documentation/devicetree/bindings/mfd/rk809.txt (revision 4882a59341e53eb6f0b4789bf948001014eff981)

RK809 Power Management Integrated Circuit

Required properties:
- compatible: "rockchip,rk809"
- reg: I2C slave address
- interrupt-parent: The parent interrupt controller.
- interrupts: the interrupt outputs of the controller.
- #clock-cells: from common clock binding; shall be set to 1 (multiple clock
  outputs). See <dt-bindings/clock/rockchip,rk808.h> for clock IDs.

Optional properties:
- clock-output-names: From common clock binding to override the
  default output clock name
- rockchip,system-power-controller: Telling whether or not this pmic is controlling
  the system power.
- vcc1-supply:  The input supply for DCDC_REG1
- vcc2-supply:  The input supply for DCDC_REG2
- vcc3-supply:  The input supply for DCDC_REG3
- vcc4-supply:  The input supply for DCDC_REG4
- vcc5-supply:  The input supply for LDO_REG1, LDO_REG2, LDO_REG3
- vcc6-supply:  The input supply for LDO_REG4, LDO_REG5, LDO_REG6
- vcc7-supply:  The input supply for LDO_REG7, LDO_REG8, LDO_REG9
- vcc8-supply:  The input supply for SWITCH_REG1
- vcc9-supply:  The input supply for DCDC_REG5, SWITCH_REG2

Regulators: All the regulators of RK809 to be instantiated shall be
listed in a child node named 'regulators'. Each regulator is represented
by a child node of the 'regulators' node.

	regulator-name {
		/* standard regulator bindings here */
	};

Following regulators of the RK809 PMIC block are supported. Note that
the 'n' in regulator name, as in DCDC_REGn or LDOn, represents the DCDC or LDO
number as described in RK808 datasheet.

	- DCDC_REGn
		- valid values for n are 1 to 5.
	- LDO_REGn
		- valid values for n are 1 to 9.
	- SWITCH_REGn
		- valid values for n are 1 to 2.

    The gpio_slp pin is for controlling the pmic states, as below:
        reset
        power down
        sleep

Standard regulator bindings are used inside regulator subnodes. Check
  Documentation/devicetree/bindings/regulator/regulator.txt
for more details

Example:
	rk809: pmic@20 {
		compatible = "rockchip,rk809";
		reg = <0x20>;
		interrupt-parent = <&gpio0>;
		interrupts = <7 IRQ_TYPE_LEVEL_LOW>;
		pinctrl-names = "default", "pmic-sleep",
				"pmic-power-off", "pmic-reset";
		pinctrl-0 = <&pmic_int>;
		pinctrl-1 = <&soc_slppin_slp>, <&rk817_slppin_slp>;
		pinctrl-2 = <&soc_slppin_gpio>, <&rk817_slppin_pwrdn>;
		pinctrl-3 = <&soc_slppin_rst>, <&rk817_slppin_rst>;
		rockchip,system-power-controller;
		wakeup-source;
		#clock-cells = <1>;
		clock-output-names = "rk808-clkout1", "rk808-clkout2";

		vcc1-supply = <&vcc5v0_sys>;
		vcc2-supply = <&vcc5v0_sys>;
		vcc3-supply = <&vcc5v0_sys>;
		vcc4-supply = <&vcc5v0_sys>;
		vcc5-supply = <&vcc3v3_sys>;
		vcc6-supply = <&vcc3v3_sys>;
		vcc7-supply = <&vcc3v3_sys>;
		vcc8-supply = <&vcc3v3_sys>;
		vcc9-supply = <&vcc5v0_sys>;

		pwrkey {
			status = "okay";
		};

		pinctrl_rk8xx: pinctrl_rk8xx {
			gpio-controller;
			#gpio-cells = <2>;

			rk817_slppin_null: rk817_slppin_null {
				pins = "gpio_slp";
				function = "pin_fun0";
			};

			rk817_slppin_slp: rk817_slppin_slp {
				pins = "gpio_slp";
				function = "pin_fun1";
			};

			rk817_slppin_pwrdn: rk817_slppin_pwrdn {
				pins = "gpio_slp";
				function = "pin_fun2";
			};

			rk817_slppin_rst: rk817_slppin_rst {
				pins = "gpio_slp";
				function = "pin_fun3";
			};
		};

		regulators {
			vdd_logic: DCDC_REG1 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <950000>;
				regulator-max-microvolt = <1350000>;
				regulator-ramp-delay = <6001>;
				regulator-initial-mode = <0x1>;
				regulator-name = "vdd_logic";
				regulator-state-mem {
					regulator-on-in-suspend;
					regulator-suspend-microvolt = <950000>;
				};
			};

			vdd_arm: DCDC_REG2 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <950000>;
				regulator-max-microvolt = <1350000>;
				regulator-ramp-delay = <6001>;
				regulator-initial-mode = <0x1>;
				regulator-name = "vdd_arm";
				regulator-state-mem {
					regulator-off-in-suspend;
					regulator-suspend-microvolt = <950000>;
				};
			};

			vcc_ddr: DCDC_REG3 {
				regulator-always-on;
				regulator-boot-on;
				regulator-name = "vcc_ddr";
				regulator-initial-mode = <0x1>;
				regulator-state-mem {
					regulator-on-in-suspend;
				};
			};

			vcc_3v0: DCDC_REG4 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <3000000>;
				regulator-max-microvolt = <3000000>;
				regulator-initial-mode = <0x1>;
				regulator-name = "vcc_3v0";
				regulator-state-mem {
					regulator-off-in-suspend;
					regulator-suspend-microvolt = <3000000>;
				};
			};

			vcc2v5_ddr: LDO_REG1 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <2500000>;
				regulator-max-microvolt = <2500000>;
				regulator-name = "vcc2v5_ddr";
				regulator-state-mem {
					regulator-on-in-suspend;
					regulator-suspend-microvolt = <2500000>;
				};
			};

			vcc1v8_soc: LDO_REG2 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <1800000>;

				regulator-name = "vcc1v8_soc";
				regulator-state-mem {
					regulator-on-in-suspend;
					regulator-suspend-microvolt = <1800000>;
				};
			};

			vdd1v0_soc: LDO_REG3 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <1000000>;
				regulator-max-microvolt = <1000000>;

				regulator-name = "vcc1v0_soc";
				regulator-state-mem {
					regulator-on-in-suspend;
					regulator-suspend-microvolt = <1000000>;
				};
			};

			vcc3v0_pmu: LDO_REG4 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <3000000>;
				regulator-max-microvolt = <3000000>;

				regulator-name = "vcc3v0_pmu";
				regulator-state-mem {
					regulator-on-in-suspend;
					regulator-suspend-microvolt = <3000000>;

				};
			};

			vccio_sd: LDO_REG5 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3300000>;

				regulator-name = "vccio_sd";
				regulator-state-mem {
					regulator-on-in-suspend;
					regulator-suspend-microvolt = <3300000>;
				};
			};

			vcc_sd: LDO_REG6 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3300000>;

				regulator-name = "vcc_sd";
				regulator-state-mem {
					regulator-on-in-suspend;
					regulator-suspend-microvolt = <3300000>;

				};
			};

			vcc2v8_dvp: LDO_REG7 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <2800000>;
				regulator-max-microvolt = <2800000>;

				regulator-name = "vcc2v8_dvp";
				regulator-state-mem {
					regulator-off-in-suspend;
					regulator-suspend-microvolt = <2800000>;
				};
			};

			vcc1v8_dvp: LDO_REG8 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <1800000>;
				regulator-max-microvolt = <1800000>;

				regulator-name = "vcc1v8_dvp";
				regulator-state-mem {
					regulator-on-in-suspend;
					regulator-suspend-microvolt = <1800000>;
				};
			};

			vdd1v5_dvp: LDO_REG9 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <1500000>;
				regulator-max-microvolt = <1500000>;

				regulator-name = "vdd1v5_dvp";
				regulator-state-mem {
					regulator-off-in-suspend;
					regulator-suspend-microvolt = <1500000>;
				};
			};

			vcc3v3_sys: DCDC_REG5 {
				regulator-always-on;
				regulator-boot-on;
				regulator-min-microvolt = <3300000>;
				regulator-max-microvolt = <3300000>;
				regulator-name = "vcc3v3_sys";
				regulator-state-mem {
					regulator-on-in-suspend;
					regulator-suspend-microvolt = <3300000>;
				};
			};

			vcc3v3_lcd: SWITCH_REG1 {
				regulator-boot-on;
				regulator-name = "vcc3v3_lcd";
			};

			vcc5v0_host: SWITCH_REG2 {
				regulator-always-on;
				regulator-boot-on;
				regulator-name = "vcc5v0_host";
			};
		};

		rk809_codec: codec {
			#sound-dai-cells = <0>;
			compatible = "rockchip,rk809-codec", "rockchip,rk817-codec";
			clocks = <&cru SCLK_I2S1_OUT>;
			clock-names = "mclk";
			pinctrl-names = "default";
			pinctrl-0 = <&i2s1_2ch_mclk>;
			hp-volume = <20>;
			spk-volume = <3>;
			status = "okay";
		};
	}