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mfd: da9055: Add DT binding documentation for PMIC

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Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Adam Thomson 2014-03-05 14:18:37 +00:00 committed by Lee Jones
parent 202f7680af
commit 94b6c3dac0
1 changed files with 72 additions and 0 deletions
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Documentation/devicetree/bindings/mfd/da9055.txt Normal file
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* Dialog DA9055 Power Management Integrated Circuit (PMIC)
DA9055 consists of a large and varied group of sub-devices (I2C Only):
Device Supply Names Description
------ ------------ -----------
da9055-gpio : : GPIOs
da9055-regulator : : Regulators
da9055-onkey : : On key
da9055-rtc : : RTC
da9055-hwmon : : ADC
da9055-watchdog : : Watchdog
The CODEC device in DA9055 has a separate, configurable I2C address and so
is instantiated separately from the PMIC.
For details on accompanying CODEC I2C device, see the following:
Documentation/devicetree/bindings/sound/da9055.txt
======
Required properties:
- compatible : Should be "dlg,da9055-pmic"
- reg: Specifies the I2C slave address (defaults to 0x5a but can be modified)
- interrupt-parent: Specifies the phandle of the interrupt controller to which
the IRQs from da9055 are delivered to.
- interrupts: IRQ line info for da9055 chip.
- interrupt-controller: da9055 has internal IRQs (has own IRQ domain).
- #interrupt-cells: Should be 1, is the local IRQ number for da9055.
Sub-nodes:
- regulators : Contain the regulator nodes. The DA9055 regulators are
bound using their names as listed below:
buck1 : regulator BUCK1
buck2 : regulator BUCK2
ldo1 : regulator LDO1
ldo2 : regulator LDO2
ldo3 : regulator LDO3
ldo4 : regulator LDO4
ldo5 : regulator LDO5
ldo6 : regulator LDO6
The bindings details of individual regulator device can be found in:
Documentation/devicetree/bindings/regulator/regulator.txt
Example:
pmic: da9055-pmic@5a {
compatible = "dlg,da9055-pmic";
reg = <0x5a>;
interrupt-parent = <&intc>;
interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
interrupt-controller;
#interrupt-cells = <1>;
regulators {
buck1: BUCK1 {
regulator-min-microvolt = <725000>;
regulator-max-microvolt = <2075000>;
};
buck2: BUCK2 {
regulator-min-microvolt = <925000>;
regulator-max-microvolt = <2500000>;
};
ldo1: LDO1 {
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <3300000>;
};
};
};