On Fri, Mar 20, 2015 at 12:31 AM, Ingi Kim <ingi2.kim@xxxxxxxxxxx> wrote:
> This patch adds the device tree bindings for ktd2692 flash LEDs.
> Add optional properties 'flash-timeout-us' to control flash timeout
> and 'vin-supply' for flash-led regulator
>
> Signed-off-by: Ingi Kim <ingi2.kim@xxxxxxxxxxx>
> ---
> .../devicetree/bindings/leds/leds-ktd2692.txt | 34 ++++++++++++++++++++++
> 1 file changed, 34 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/leds/leds-ktd2692.txt
>
> diff --git a/Documentation/devicetree/bindings/leds/leds-ktd2692.txt b/Documentation/devicetree/bindings/leds/leds-ktd2692.txt
> new file mode 100644
> index 0000000..75e16f8
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/leds-ktd2692.txt
> @@ -0,0 +1,34 @@
> +* Kinetic Technologies - KTD2692 Flash LED Driver
> +
> +KTD2692 is the ideal power solution for high-power flash LEDs.
> +It uses ExpressWire single-wire programming for maximum flexibility.
> +
> +The ExpressWire interface through CTRL pin can control LED on/off and
> +enable/disable the IC, Movie(max 1/3 of Flash current) / Flash mode current,
> +Flash timeout, LVP(low voltage protection).
> +
> +Also, When the AUX pin is pulled high while CTRL pin is high,
> +LED current will be ramped up to the flash-mode current level.
> +
> +Required properties:
> + - compatible: "kinetic,ktd2692"
> + - ctrl-gpio, aux-gpio : gpio pin in order control ktd2692 flash led.
> + There is an internal 300kOhm pull-down resistor at each pin
> + - supply : "vin" LED supply (2.7V to 5.5V)
This should be "vin-supply", right?
> + See Documentation/devicetree/bindings/regulator/regulator.txt
> +
> +Optional property:
> + - flash-timeout-us : Maximum flash timeout in microseconds.
> + flash timeout ranges from 0 to 1835000us and
> + default is 1049000us.
> +
> +Example:
> +
> +flash-led {
> + compatible = "kinetic,ktd2692";
> + ctrl-gpio = <&gpc0 1 0>;
> + aux-gpio = <&gpc0 2 0>;
> + flash-timeout-us = <1835000>;
> + vin-supply = <&vbat>;
> +};
> +
> --
> 2.0.5
>
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