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Diffstat (limited to 'dts/Bindings/regulator/max8997-regulator.txt')
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diff --git a/dts/Bindings/regulator/max8997-regulator.txt b/dts/Bindings/regulator/max8997-regulator.txt deleted file mode 100644 index b53c5e2b33..0000000000 --- a/dts/Bindings/regulator/max8997-regulator.txt +++ /dev/null @@ -1,145 +0,0 @@ -* Maxim MAX8997 Voltage and Current Regulator - -The Maxim MAX8997 is a multi-function device which includes voltage and -current regulators, rtc, charger controller and other sub-blocks. It is -interfaced to the host controller using a i2c interface. Each sub-block is -addressed by the host system using different i2c slave address. This document -describes the bindings for 'pmic' sub-block of max8997. - -Required properties: -- compatible: Should be "maxim,max8997-pmic". -- reg: Specifies the i2c slave address of the pmic block. It should be 0x66. - -- max8997,pmic-buck1-dvs-voltage: A set of 8 voltage values in micro-volt (uV) - units for buck1 when changing voltage using gpio dvs. Refer to [1] below - for additional information. - -- max8997,pmic-buck2-dvs-voltage: A set of 8 voltage values in micro-volt (uV) - units for buck2 when changing voltage using gpio dvs. Refer to [1] below - for additional information. - -- max8997,pmic-buck5-dvs-voltage: A set of 8 voltage values in micro-volt (uV) - units for buck5 when changing voltage using gpio dvs. Refer to [1] below - for additional information. - -[1] If none of the 'max8997,pmic-buck[1/2/5]-uses-gpio-dvs' optional - property is specified, the 'max8997,pmic-buck[1/2/5]-dvs-voltage' - property should specify atleast one voltage level (which would be a - safe operating voltage). - - If either of the 'max8997,pmic-buck[1/2/5]-uses-gpio-dvs' optional - property is specified, then all the eight voltage values for the - 'max8997,pmic-buck[1/2/5]-dvs-voltage' should be specified. - -Optional properties: -- interrupts: Interrupt specifiers for two interrupt sources. - - First interrupt specifier is for 'irq1' interrupt. - - Second interrupt specifier is for 'alert' interrupt. -- charger-supply: regulator node for charging current. -- max8997,pmic-buck1-uses-gpio-dvs: 'buck1' can be controlled by gpio dvs. -- max8997,pmic-buck2-uses-gpio-dvs: 'buck2' can be controlled by gpio dvs. -- max8997,pmic-buck5-uses-gpio-dvs: 'buck5' can be controlled by gpio dvs. - -Additional properties required if either of the optional properties are used: -- max8997,pmic-ignore-gpiodvs-side-effect: When GPIO-DVS mode is used for - multiple bucks, changing the voltage value of one of the bucks may affect - that of another buck, which is the side effect of the change (set_voltage). - Use this property to ignore such side effects and change the voltage. - -- max8997,pmic-buck125-default-dvs-idx: Default voltage setting selected from - the possible 8 options selectable by the dvs gpios. The value of this - property should be between 0 and 7. If not specified or if out of range, the - default value of this property is set to 0. - -- max8997,pmic-buck125-dvs-gpios: GPIO specifiers for three host gpio's used - for dvs. The format of the gpio specifier depends in the gpio controller. - -Regulators: The regulators of max8997 that have to be instantiated should be -included in a sub-node named 'regulators'. Regulator nodes included in this -sub-node should be of the format as listed below. - - regulator_name { - standard regulator bindings here - }; - -The following are the names of the regulators that the max8997 pmic block -supports. Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number -as per the datasheet of max8997. - - - LDOn - - valid values for n are 1 to 18 and 21 - - Example: LDO0, LD01, LDO2, LDO21 - - BUCKn - - valid values for n are 1 to 7. - - Example: BUCK1, BUCK2, BUCK3, BUCK7 - - - ENVICHG: Battery Charging Current Monitor Output. This is a fixed - voltage type regulator - - - ESAFEOUT1: (ldo19) - - ESAFEOUT2: (ld020) - - - CHARGER_CV: main battery charger voltage control - - CHARGER: main battery charger current control - - CHARGER_TOPOFF: end of charge current threshold level - -The bindings inside the regulator nodes use the standard regulator bindings -which are documented elsewhere. - -Example: - - max8997_pmic@66 { - compatible = "maxim,max8997-pmic"; - interrupt-parent = <&wakeup_eint>; - reg = <0x66>; - interrupts = <4 0>, <3 0>; - - max8997,pmic-buck1-uses-gpio-dvs; - max8997,pmic-buck2-uses-gpio-dvs; - max8997,pmic-buck5-uses-gpio-dvs; - - max8997,pmic-ignore-gpiodvs-side-effect; - max8997,pmic-buck125-default-dvs-idx = <0>; - - max8997,pmic-buck125-dvs-gpios = <&gpx0 0 1 0 0>, /* SET1 */ - <&gpx0 1 1 0 0>, /* SET2 */ - <&gpx0 2 1 0 0>; /* SET3 */ - - max8997,pmic-buck1-dvs-voltage = <1350000>, <1300000>, - <1250000>, <1200000>, - <1150000>, <1100000>, - <1000000>, <950000>; - - max8997,pmic-buck2-dvs-voltage = <1100000>, <1100000>, - <1100000>, <1100000>, - <1000000>, <1000000>, - <1000000>, <1000000>; - - max8997,pmic-buck5-dvs-voltage = <1200000>, <1200000>, - <1200000>, <1200000>, - <1200000>, <1200000>, - <1200000>, <1200000>; - - regulators { - ldo1_reg: LDO1 { - regulator-name = "VDD_ABB_3.3V"; - regulator-min-microvolt = <3300000>; - regulator-max-microvolt = <3300000>; - }; - - ldo2_reg: LDO2 { - regulator-name = "VDD_ALIVE_1.1V"; - regulator-min-microvolt = <1100000>; - regulator-max-microvolt = <1100000>; - regulator-always-on; - }; - - buck1_reg: BUCK1 { - regulator-name = "VDD_ARM_1.2V"; - regulator-min-microvolt = <950000>; - regulator-max-microvolt = <1350000>; - regulator-always-on; - regulator-boot-on; - }; - }; - }; |