diff options
| author | Kim, Milo <Milo.Kim@ti.com> | 2013-05-10 09:17:51 +0200 |
|---|---|---|
| committer | Anton Vorontsov <anton@enomsg.org> | 2013-06-07 02:19:54 +0200 |
| commit | 17b4565b308ed31fa20b59842c75e685a101dc8a (patch) | |
| tree | 6f6462adc90736ce91d57bffc5c6b73865bda56e /Documentation/devicetree | |
| parent | twl4030_charger: Remove unnecessary platform_set_drvdata() (diff) | |
| download | linux-17b4565b308ed31fa20b59842c75e685a101dc8a.tar.xz linux-17b4565b308ed31fa20b59842c75e685a101dc8a.zip | |
lp8727_charger: Support the device tree feature
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>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/power_supply/lp8727_charger.txt | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/power_supply/lp8727_charger.txt b/Documentation/devicetree/bindings/power_supply/lp8727_charger.txt new file mode 100644 index 000000000000..2246bc5c874b --- /dev/null +++ b/Documentation/devicetree/bindings/power_supply/lp8727_charger.txt @@ -0,0 +1,44 @@ +Binding for TI/National Semiconductor LP8727 Charger + +Required properties: +- compatible: "ti,lp8727" +- reg: I2C slave address 27h + +Optional properties: +- interrupt-parent: interrupt controller node (see interrupt binding[0]) +- interrupts: interrupt specifier (see interrupt binding[0]) +- debounce-ms: interrupt debounce time. (u32) + +AC and USB charging parameters +- charger-type: "ac" or "usb" (string) +- eoc-level: value of 'enum lp8727_eoc_level' (u8) +- charging-current: value of 'enum lp8727_ichg' (u8) + +[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt + +Example) + +lp8727@27 { + compatible = "ti,lp8727"; + reg = <0x27>; + + /* GPIO 134 is used for LP8728 interrupt pin */ + interrupt-parent = <&gpio5>; /* base = 128 */ + interrupts = <6 0x2>; /* offset = 6, falling edge type */ + + debounce-ms = <300>; + + /* AC charger: 5% EOC and 500mA charging current */ + ac { + charger-type = "ac"; + eoc-level = /bits/ 8 <0>; + charging-current = /bits/ 8 <4>; + }; + + /* USB charger: 10% EOC and 400mA charging current */ + usb { + charger-type = "usb"; + eoc-level = /bits/ 8 <1>; + charging-current = /bits/ 8 <2>; + }; +}; |