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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/leds/kinetic,ktd2692.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: KTD2692 Flash LED Driver from Kinetic Technologies
maintainers:
- Markuss Broks <markuss.broks@gmail.com>
description: |
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.
properties:
compatible:
const: kinetic,ktd2692
ctrl-gpios:
maxItems: 1
description: Specifier of the GPIO connected to CTRL pin.
aux-gpios:
maxItems: 1
description: Specifier of the GPIO connected to CTRL pin.
vin-supply:
description: LED supply (2.7V to 5.5V).
led:
type: object
$ref: common.yaml#
description: Properties for the LED.
properties:
function: true
color: true
flash-max-timeout-us:
description: Flash LED maximum timeout.
led-max-microamp:
maximum: 300000
description: Minimum Threshold for Timer protection
is defined internally (Maximum 300mA).
flash-max-microamp:
maximum: 300000
description: Flash LED maximum current
Formula - I(uA) = 15000000 / Rset.
additionalProperties: false
required:
- compatible
- ctrl-gpios
- led
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/leds/common.h>
ktd2692 {
compatible = "kinetic,ktd2692";
ctrl-gpios = <&gpc0 1 0>;
aux-gpios = <&gpc0 2 0>;
vin-supply = <&vbat>;
led {
function = LED_FUNCTION_FLASH;
color = <LED_COLOR_ID_WHITE>;
flash-max-timeout-us = <250000>;
flash-max-microamp = <150000>;
led-max-microamp = <25000>;
};
};
...
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