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| @@ -1,2 +1,2 @@ | ||
| --- | ||
| refs/heads/master: 1a8f85d402a2bf3b86c08c696a0adf36656f770a | ||
| refs/heads/master: 4247bfe20ab1cb8cf1874b811c0dc60bcd0249e8 |
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37 changes: 37 additions & 0 deletions
37
trunk/Documentation/devicetree/bindings/regulator/gpio-regulator.txt
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| GPIO controlled regulators | ||
|
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| Required properties: | ||
| - compatible : Must be "regulator-gpio". | ||
| - states : Selection of available voltages and GPIO configs. | ||
| if there are no states, then use a fixed regulator | ||
|
|
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| Optional properties: | ||
| - enable-gpio : GPIO to use to enable/disable the regulator. | ||
| - gpios : GPIO group used to control voltage. | ||
| - startup-delay-us : Startup time in microseconds. | ||
| - enable-active-high : Polarity of GPIO is active high (default is low). | ||
|
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| Any property defined as part of the core regulator binding defined in | ||
| regulator.txt can also be used. | ||
|
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| Example: | ||
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| mmciv: gpio-regulator { | ||
| compatible = "regulator-gpio"; | ||
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| regulator-name = "mmci-gpio-supply"; | ||
| regulator-min-microvolt = <1800000>; | ||
| regulator-max-microvolt = <2600000>; | ||
| regulator-boot-on; | ||
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| enable-gpio = <&gpio0 23 0x4>; | ||
| gpios = <&gpio0 24 0x4 | ||
| &gpio0 25 0x4>; | ||
| states = <1800000 0x3 | ||
| 2200000 0x2 | ||
| 2600000 0x1 | ||
| 2900000 0x0>; | ||
|
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| startup-delay-us = <100000>; | ||
| enable-active-high; | ||
| }; |
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trunk/Documentation/devicetree/bindings/regulator/max8925-regulator.txt
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| Max8925 Voltage regulators | ||
|
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| Required nodes: | ||
| -nodes: | ||
| - SDV1 for SDV SDV1 | ||
| - SDV2 for SDV SDV2 | ||
| - SDV3 for SDV SDV3 | ||
| - LDO1 for LDO LDO1 | ||
| - LDO2 for LDO LDO2 | ||
| - LDO3 for LDO LDO3 | ||
| - LDO4 for LDO LDO4 | ||
| - LDO5 for LDO LDO5 | ||
| - LDO6 for LDO LDO6 | ||
| - LDO7 for LDO LDO7 | ||
| - LDO8 for LDO LDO8 | ||
| - LDO9 for LDO LDO9 | ||
| - LDO10 for LDO LDO10 | ||
| - LDO11 for LDO LDO11 | ||
| - LDO12 for LDO LDO12 | ||
| - LDO13 for LDO LDO13 | ||
| - LDO14 for LDO LDO14 | ||
| - LDO15 for LDO LDO15 | ||
| - LDO16 for LDO LDO16 | ||
| - LDO17 for LDO LDO17 | ||
| - LDO18 for LDO LDO18 | ||
| - LDO19 for LDO LDO19 | ||
| - LDO20 for LDO LDO20 | ||
|
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| Optional properties: | ||
| - Any optional property defined in bindings/regulator/regulator.txt | ||
|
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| Example: | ||
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| SDV1 { | ||
| regulator-min-microvolt = <637500>; | ||
| regulator-max-microvolt = <1425000>; | ||
| regulator-boot-on; | ||
| regulator-always-on; | ||
| }; | ||
|
|
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146
trunk/Documentation/devicetree/bindings/regulator/max8997-regulator.txt
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| * Maxim MAX8997 Voltage and Current Regulator | ||
|
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| The Maxim MAX8997 is a multi-function device which includes volatage 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. | ||
|
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| Required properties: | ||
| - compatible: Should be "maxim,max8997-pmic". | ||
| - reg: Specifies the i2c slave address of the pmic block. It should be 0x66. | ||
|
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| - 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. | ||
|
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| - 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. | ||
|
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| - 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. | ||
|
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| [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). | ||
|
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| If either of the 'max8997,pmic-buck[1/2/5]-uses-gpio-dvs' optional | ||
| property is specified, then all the eigth voltage values for the | ||
| 'max8997,pmic-buck[1/2/5]-dvs-voltage' should be specified. | ||
|
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| Optional properties: | ||
| - interrupt-parent: Specifies the phandle of the interrupt controller to which | ||
| the interrupts from max8997 are delivered to. | ||
| - interrupts: Interrupt specifiers for two interrupt sources. | ||
| - First interrupt specifier is for 'irq1' interrupt. | ||
| - Second interrupt specifier is for 'alert' interrupt. | ||
| - 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. | ||
|
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| 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. | ||
|
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| - 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. | ||
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| - 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. | ||
|
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| 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. | ||
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| regulator_name { | ||
| standard regulator bindings here | ||
| }; | ||
|
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| 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. | ||
|
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| - 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 | ||
|
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| - ENVICHG: Battery Charging Current Monitor Output. This is a fixed | ||
| voltage type regulator | ||
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| - ESAFEOUT1: (ldo19) | ||
| - ESAFEOUT2: (ld020) | ||
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| - CHARGER_CV: main battery charger voltage control | ||
| - CHARGER: main battery charger current control | ||
| - CHARGER_TOPOFF: end of charge current threshold level | ||
|
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| The bindings inside the regulator nodes use the standard regulator bindings | ||
| which are documented elsewhere. | ||
|
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| Example: | ||
|
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| max8997_pmic@66 { | ||
| compatible = "maxim,max8997-pmic"; | ||
| interrupt-parent = <&wakeup_eint>; | ||
| reg = <0x66>; | ||
| interrupts = <4 0>, <3 0>; | ||
|
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| max8997,pmic-buck1-uses-gpio-dvs; | ||
| max8997,pmic-buck2-uses-gpio-dvs; | ||
| max8997,pmic-buck5-uses-gpio-dvs; | ||
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| max8997,pmic-ignore-gpiodvs-side-effect; | ||
| max8997,pmic-buck125-default-dvs-idx = <0>; | ||
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| max8997,pmic-buck125-dvs-gpios = <&gpx0 0 1 0 0>, /* SET1 */ | ||
| <&gpx0 1 1 0 0>, /* SET2 */ | ||
| <&gpx0 2 1 0 0>; /* SET3 */ | ||
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| max8997,pmic-buck1-dvs-voltage = <1350000>, <1300000>, | ||
| <1250000>, <1200000>, | ||
| <1150000>, <1100000>, | ||
| <1000000>, <950000>; | ||
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| max8997,pmic-buck2-dvs-voltage = <1100000>, <1100000>, | ||
| <1100000>, <1100000>, | ||
| <1000000>, <1000000>, | ||
| <1000000>, <1000000>; | ||
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| max8997,pmic-buck5-dvs-voltage = <1200000>, <1200000>, | ||
| <1200000>, <1200000>, | ||
| <1200000>, <1200000>, | ||
| <1200000>, <1200000>; | ||
|
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| regulators { | ||
| ldo1_reg: LDO1 { | ||
| regulator-name = "VDD_ABB_3.3V"; | ||
| regulator-min-microvolt = <3300000>; | ||
| regulator-max-microvolt = <3300000>; | ||
| }; | ||
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| ldo2_reg: LDO2 { | ||
| regulator-name = "VDD_ALIVE_1.1V"; | ||
| regulator-min-microvolt = <1100000>; | ||
| regulator-max-microvolt = <1100000>; | ||
| regulator-always-on; | ||
| }; | ||
|
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| buck1_reg: BUCK1 { | ||
| regulator-name = "VDD_ARM_1.2V"; | ||
| regulator-min-microvolt = <950000>; | ||
| regulator-max-microvolt = <1350000>; | ||
| regulator-always-on; | ||
| regulator-boot-on; | ||
| }; | ||
| }; | ||
| }; |
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32
trunk/Documentation/devicetree/bindings/regulator/vexpress.txt
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| Versatile Express voltage regulators | ||
| ------------------------------------ | ||
|
|
||
| Requires node properties: | ||
| - "compatible" value: "arm,vexpress-volt" | ||
| - "arm,vexpress-sysreg,func" when controlled via vexpress-sysreg | ||
| (see Documentation/devicetree/bindings/arm/vexpress-sysreg.txt | ||
| for more details) | ||
|
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| Required regulator properties: | ||
| - "regulator-name" | ||
| - "regulator-always-on" | ||
|
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| Optional regulator properties: | ||
| - "regulator-min-microvolt" | ||
| - "regulator-max-microvolt" | ||
|
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| See Documentation/devicetree/bindings/regulator/regulator.txt | ||
| for more details about the regulator properties. | ||
|
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| When no "regulator-[min|max]-microvolt" properties are defined, | ||
| the device is treated as fixed (or rather "read-only") regulator. | ||
|
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| Example: | ||
| volt@0 { | ||
| compatible = "arm,vexpress-volt"; | ||
| arm,vexpress-sysreg,func = <2 0>; | ||
| regulator-name = "Cores"; | ||
| regulator-min-microvolt = <800000>; | ||
| regulator-max-microvolt = <1050000>; | ||
| regulator-always-on; | ||
| }; |
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