143 lines
4 KiB
Text
143 lines
4 KiB
Text
Qualcomm Technologies, Inc. PM8008 Regulator
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PM8008 is an I2C based PMIC regulator chip.
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=======================
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Required Node Structure
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=======================
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==============================================
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PM8008 chip specific device
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==============================================
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PM8008 chip specific properties:
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- compatible:
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Usage: required
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Value type: <string>
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Definition: must be "qcom,pm8008-chip"
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- pinctrl-names:
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Usage: required
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Value type: <string>
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Definition: must be "default"
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- pinctrl-0:
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Usage: required
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Value type: <phandle>
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Definition: pinctrol handle for chip enable GPIO.
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- interrupts:
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Usage: optional
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Value type: <prop encoded array>
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Definition: PM8008 LDO over current protection (OCP) summary interrupt.
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- interrupt-names
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Usage: required if 'interrupts' property is specified.
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Value type: <string>
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Definition: This should be "ocp" for the PM8008 LDO OCP interrupt.
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- regulator sub-node:
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Usage: required
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Value type: <child sub node>
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Definition: Chip enable regulator device to control chip enable
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functionality. Must be "qcom,pm8008-chip-en".
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Example:
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qcom,pm8008-chip@900 {
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compatible = "qcom,pm8008-chip";
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interrupts = <0x09 4 IRQ_TYPE_EDGE_RISING>;
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interrupt-names = "ocp";
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PM8008_EN: qcom,pm8008-chip-en {
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regulator-name = "pm8008-chip-en";
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};
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};
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========================================================
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PM8008 regulator device
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========================================================
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PM8008 chip regulator specific properties:
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- compatible:
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Usage: required
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Value type: <string>
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Definition: must be "qcom,pm8008-regulator" or "qcom,pm8010-regulator"
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- <pin>-supply:
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Usage: optional
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Value type: <phandle>
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Definition: Reference to parent regulator supplying the input pin, as
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described in the data sheet.
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Must be one of the following:
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vdd_l1_l2-supply: supply for LDO1/LDO2 of PM8008
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vdd_l3_l4-supply: supply for LDO3/LDO4 of PM8008
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vdd_l5-supply: supply for LDO5 of PM8008
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vdd_l6-supply: supply for LDO6 of PM8008
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vdd_l7-supply: supply for LDO7 of PM8008
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- pm8008_en-supply:
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Usage: required
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Value type: <phandle>
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Definition: Reference to PM8008 chip enable regulator, which manages
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chip enable functionlity of PM8008.
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- qcom,enable-ocp-broadcast:
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Usage: optional
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Value type: <bool>
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Definition: Property if present enables the LDO OCP broadcast bit.
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This property is required only when the "ocp" interrupt
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in the pm8008 chip module is enabled.
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============================================================================
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Second Level Nodes - PM8008 regulator peripherals of PM8008 regulator device
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============================================================================
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- qcom,hpm-min-load:
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Usage: optional
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Value type: <u32>
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Definition: Load current in uA which corresponds to the minimum load
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which requires the regulator to be in high power mode.
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- qcom,min-dropout-voltage:
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Usage: optional
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Value type: <u32>
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Definition: Specifies the minimum voltage in microvolts that the parent
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supply regulator must output above the output of this
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regulator. It is only meaningful if the corresponding parent
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supply property has been specified in the first level node.
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- qcom,init-voltage
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Usage: optional
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Value type: <u32>
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Definition: Specifies the initial voltage in microvolts to for a regulator.
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- qcom,strong-pd
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Usage: optional
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Value type: <bool>
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Definition: Property if present enables strong pull-down.
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The content of each sub-node is defined by the standard binding for regulators -
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see regulator.txt - with additional custom properties described below:
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Example:
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qcom,pm8008-regulator {
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compatible = "qcom,pm8008-regulator";
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pm8008_en-supply = <&PM8008_EN>;
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vdd_l1_l2-supply = <&parent-supply>;
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qcom,enable-ocp-broadcast;
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...
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L1: qcom,pm8008-l1@4000 {
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reg = /bits/ 16 <0x4000>;
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regulator-name = "pm8008_l1";
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regulator-min-microvolt = <2900000>;
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regulator-max-microvolt = <3100000>;
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qcom,min-dropout-voltage = <100000>;
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qcom,hpm-min-load = <10000>;
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}
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.....
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};
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