Hi, Rob
On 2015년 03월 21일 00:49, Rob Herring wrote:
> 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?
>
Yes, You are right.
"vin-supply" is more exact than before.
I'll fix it
Thanks
>> + 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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