137 lines
3.9 KiB
Text
137 lines
3.9 KiB
Text
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/*
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* Copyright (C) 2008 Shanghai awinic technology co.,ltd. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS
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* IN THE SOFTWARE.
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*/
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Awinic. AW2016 LED
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AW2016 LED device supports 3 LED channels and the driver
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register each channel as a single LED class device and
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exports interfaces to update brightness, set timer trigger
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and enable HW based blink functionalities.
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- compatible
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Usage: required
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Value type: <string>
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Definition: Must be "awinic,aw2016_led"
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- reg
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Usage: required
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Value type: <u32>
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Definition: The 7-bit I2C address for AW2016 chip.
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Properties for child properties:
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- awinic,name
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Usage: required
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Value type: <string>
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Definition: Name of the LED which will be register as the LED class
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device name.
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- awinic,id
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Usage: required
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Value type: <u32>
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Definition: It represents the LED hardware channel index. The valid
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values are: 0, 1, 2.
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- awinic,imax
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Usage: required
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Value type: <u32>
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Definition: The setting of the maximum current for the given LED channel,
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the valid values are: 0, 1, 2, 3, and the corresponding current
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setting are: 15mA, 30mA, 5mA, 10mA.
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- awinic,led-current
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Usage: required
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Value type: <u32>
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Definition: The setting of the current when the LED channel is enabled.
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- awinic,max-brightness
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Usage: required
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Value type: <u32>
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Definition: The maximum brightness value for the LED class device.
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- awinic,rise-time-ms
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Usage: required
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Value type <u32>
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Definition: The duration of the led ramping from 0 to maximum brightness
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when breath function is enabled.
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- awinic,hold-time-ms
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Usage: required
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Value type: <u32>
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Definition: The duration of the led staying at the maximum brightness
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when breath function is enabled.
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- awinic,fall-time-ms
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Usage: required
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Value type: <u32>
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Definition: The duration of the led ramping down from maximum brightness
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to 0 when breath function is enabled.
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- awinic,off-time-ms
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Usage: required
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Value type: <u32>
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Definition: The duration of the led staying at 0 brightness when breath
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function is enabled.
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Example:
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awinic@64 {
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compatible = "awinic,aw2016_led";
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reg = <0x64>;
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awinic,red {
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awinic,name = "red";
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awinic,id = <0>;
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awinic,imax = <2>;
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awinic,led-current = <3>;
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awinic,max-brightness = <255>;
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awinic,rise-time-ms = <6>;
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awinic,hold-time-ms = <0>;
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awinic,fall-time-ms = <6>;
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awinic,off-time-ms = <4>;
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};
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awinic,green {
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awinic,name = "green";
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awinic,id = <1>;
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awinic,imax = <2>;
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awinic,led-current = <3>;
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awinic,max-brightness = <255>;
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awinic,rise-time-ms = <6>;
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awinic,hold-time-ms = <0>;
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awinic,fall-time-ms = <6>;
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awinic,off-time-ms = <4>;
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};
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awinic,blue {
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awinic,name = "blue";
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awinic,id = <2>;
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awinic,imax = <2>;
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awinic,led-current = <3>;
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awinic,max-brightness = <255>;
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awinic,rise-time-ms = <6>;
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awinic,hold-time-ms = <0>;
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awinic,fall-time-ms = <6>;
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awinic,off-time-ms = <4>;
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};
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};
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