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Documentation: Add docs for max8925 dt
add docs for dt of max8925-mfd, max8925-backlight, and
max8925-battery
Signed-off-by: Qing Xu <qingx@marvell.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
authored by
Qing Xu
and committed by
Samuel Ortiz
ba3980df
58f1193e
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+64
Documentation/devicetree/bindings/mfd/max8925.txt
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Documentation/devicetree/bindings/mfd/max8925.txt
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* Maxim max8925 Power Management IC
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Required parent device properties:
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- compatible : "maxim,max8925"
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- reg : the I2C slave address for the max8925 chip
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- interrupts : IRQ line for the max8925 chip
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- interrupt-controller: describes the max8925 as an interrupt
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controller (has its own domain)
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- #interrupt-cells : should be 1.
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- The cell is the max8925 local IRQ number
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Optional parent device properties:
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- maxim,tsc-irq: there are 2 IRQ lines for max8925, one is indicated in
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interrupts property, the other is indicated here.
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max8925 consists of a large and varied group of sub-devices:
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Device Supply Names Description
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------ ------------ -----------
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max8925-onkey : : On key
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max8925-rtc : : RTC
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max8925-regulator : : Regulators
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max8925-backlight : : Backlight
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max8925-touch : : Touchscreen
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max8925-power : : Charger
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Example:
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pmic: max8925@3c {
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compatible = "maxim,max8925";
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reg = <0x3c>;
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interrupts = <1>;
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interrupt-parent = <&intcmux4>;
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interrupt-controller;
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#interrupt-cells = <1>;
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maxim,tsc-irq = <0>;
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regulators {
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SDV1 {
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regulator-min-microvolt = <637500>;
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regulator-max-microvolt = <1425000>;
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regulator-boot-on;
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regulator-always-on;
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};
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LDO1 {
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regulator-min-microvolt = <750000>;
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regulator-max-microvolt = <3900000>;
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regulator-boot-on;
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regulator-always-on;
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};
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};
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backlight {
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maxim,max8925-dual-string = <0>;
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};
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charger {
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batt-detect = <0>;
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topoff-threshold = <1>;
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fast-charge = <7>;
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no-temp-support = <0>;
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no-insert-detect = <0>;
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};
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};
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Documentation/devicetree/bindings/power_supply/max8925_batter.txt
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Documentation/devicetree/bindings/power_supply/max8925_batter.txt
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max8925-battery bindings
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~~~~~~~~~~~~~~~~
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Optional properties :
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- batt-detect: whether support battery detect
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- topoff-threshold: set charging current in topoff mode
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- fast-charge: set charging current in fast mode
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- no-temp-support: whether support temperature protection detect
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- no-insert-detect: whether support insert detect
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Example:
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charger {
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batt-detect = <0>;
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topoff-threshold = <1>;
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fast-charge = <7>;
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no-temp-support = <0>;
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no-insert-detect = <0>;
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};