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17b4565b30
The interrupt and charging parameters are configurable in the device tree structure. In the board test, a GPIO is used for handling LP8727 interrupts. The device tree binding documentation is added also. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Anton Vorontsov <anton@enomsg.org>
45 lines
1.1 KiB
Plaintext
45 lines
1.1 KiB
Plaintext
Binding for TI/National Semiconductor LP8727 Charger
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Required properties:
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- compatible: "ti,lp8727"
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- reg: I2C slave address 27h
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Optional properties:
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- interrupt-parent: interrupt controller node (see interrupt binding[0])
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- interrupts: interrupt specifier (see interrupt binding[0])
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- debounce-ms: interrupt debounce time. (u32)
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AC and USB charging parameters
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- charger-type: "ac" or "usb" (string)
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- eoc-level: value of 'enum lp8727_eoc_level' (u8)
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- charging-current: value of 'enum lp8727_ichg' (u8)
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[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
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Example)
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lp8727@27 {
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compatible = "ti,lp8727";
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reg = <0x27>;
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/* GPIO 134 is used for LP8728 interrupt pin */
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interrupt-parent = <&gpio5>; /* base = 128 */
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interrupts = <6 0x2>; /* offset = 6, falling edge type */
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debounce-ms = <300>;
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/* AC charger: 5% EOC and 500mA charging current */
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ac {
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charger-type = "ac";
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eoc-level = /bits/ 8 <0>;
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charging-current = /bits/ 8 <4>;
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};
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/* USB charger: 10% EOC and 400mA charging current */
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usb {
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charger-type = "usb";
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eoc-level = /bits/ 8 <1>;
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charging-current = /bits/ 8 <2>;
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};
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};
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