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diff --git a/Documentation/devicetree/bindings/mfd/max8998.txt b/Documentation/devicetree/bindings/mfd/max8998.txt deleted file mode 100644 index 4ed52184d0..0000000000 --- a/Documentation/devicetree/bindings/mfd/max8998.txt +++ /dev/null @@ -1,125 +0,0 @@ -* Maxim MAX8998, National/TI LP3974 multi-function device - -The Maxim MAX8998 is a multi-function device which includes voltage/current -regulators, real time clock, battery charging controller and several -other sub-blocks. It is interfaced using an I2C interface. Each sub-block -is addressed by the host system using different i2c slave address. - -PMIC sub-block --------------- - -The PMIC sub-block contains a number of voltage and current regulators, -with controllable parameters and dynamic voltage scaling capability. -In addition, it includes a real time clock and battery charging controller -as well. It is accessible at I2C address 0x66. - -Required properties: -- compatible: Should be one of the following: - - "maxim,max8998" for Maxim MAX8998 - - "national,lp3974" or "ti,lp3974" for National/TI LP3974. -- reg: Specifies the i2c slave address of the pmic block. It should be 0x66. - -Optional properties: -- interrupts: Interrupt specifiers for two interrupt sources. - - First interrupt specifier is for main interrupt. - - Second interrupt specifier is for power-on/-off interrupt. -- max8998,pmic-buck1-dvs-gpios: GPIO specifiers for two host gpios used - for buck 1 dvs. The format of the gpio specifier depends on the gpio - controller. -- max8998,pmic-buck2-dvs-gpio: GPIO specifier for host gpio used - for buck 2 dvs. The format of the gpio specifier depends on the gpio - controller. -- max8998,pmic-buck1-default-dvs-idx: Default voltage setting selected from - the possible 4 options selectable by the dvs gpios. The value of this - property should be 0, 1, 2 or 3. If not specified or out of range, - a default value of 0 is taken. -- max8998,pmic-buck2-default-dvs-idx: Default voltage setting selected from - the possible 2 options selectable by the dvs gpios. The value of this - property should be 0 or 1. If not specified or out of range, a default - value of 0 is taken. -- max8998,pmic-buck-voltage-lock: If present, disallows changing of - preprogrammed buck dvfs voltages. - -Additional properties required if max8998,pmic-buck1-dvs-gpios is defined: -- max8998,pmic-buck1-dvs-voltage: An array of 4 voltage values in microvolts - for buck1 regulator that can be selected using dvs gpio. - -Additional properties required if max8998,pmic-buck2-dvs-gpio is defined: -- max8998,pmic-buck2-dvs-voltage: An array of 2 voltage values in microvolts - for buck2 regulator that can be selected using dvs gpio. - -Regulators: All the regulators of MAX8998 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 MAX8998 PMIC block are supported. Note that -the 'n' in regulator name, as in LDOn or BUCKn, represents the LDO or BUCK -number as described in MAX8998 datasheet. - - - LDOn - - valid values for n are 2 to 17 - - Example: LDO2, LDO10, LDO17 - - BUCKn - - valid values for n are 1 to 4. - - Example: BUCK1, BUCK2, BUCK3, BUCK4 - - - ENVICHG: Battery Charging Current Monitor Output. This is a fixed - voltage type regulator - - - ESAFEOUT1: (ldo19) - - ESAFEOUT2: (ld020) - - - CHARGER: main battery charger current control - -Standard regulator bindings are used inside regulator subnodes. Check - Documentation/devicetree/bindings/regulator/regulator.txt -for more details. - -Example: - - pmic@66 { - compatible = "maxim,max8998-pmic"; - reg = <0x66>; - interrupt-parent = <&wakeup_eint>; - interrupts = <4 0>, <3 0>; - - /* Buck 1 DVS settings */ - max8998,pmic-buck1-default-dvs-idx = <0>; - max8998,pmic-buck1-dvs-gpios = <&gpx0 0 1 0 0>, /* SET1 */ - <&gpx0 1 1 0 0>; /* SET2 */ - max8998,pmic-buck1-dvs-voltage = <1350000>, <1300000>, - <1000000>, <950000>; - - /* Buck 2 DVS settings */ - max8998,pmic-buck2-default-dvs-idx = <0>; - max8998,pmic-buck2-dvs-gpio = <&gpx0 0 3 0 0>; /* SET3 */ - max8998,pmic-buck2-dvs-voltage = <1350000>, <1300000>; - - /* Regulators to instantiate */ - regulators { - 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; - }; - - charger_reg: CHARGER { - regulator-name = "CHARGER"; - regulator-min-microamp = <90000>; - regulator-max-microamp = <800000>; - }; - }; - }; |