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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id : http://devicetree.org/schemas/regulator/richtek,rtmv20-regulator.yaml#
$schema : http://devicetree.org/meta-schemas/core.yaml#
title : Richtek RTMV20 laser diode regulator
maintainers :
- ChiYuan Huang <cy_huang@richtek.com>
description : |
Richtek RTMV20 is a load switch current regulator that can supply up to 6A.
It is used to drive laser diode. There're two signals for chip controls
(Enable/Fail), Enable pin to turn chip on, and Fail pin as fault indication.
There're still four pins for camera control, two inputs (strobe and vsync),
the others for outputs (fsin1 and fsin2). Strobe input to start the current
supply, vsync input from IR camera, and fsin1/fsin2 output for the optional.
properties :
compatible :
const : richtek,rtmv20
reg :
maxItems : 1
wakeup-source : true
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interrupts :
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maxItems : 1
enable-gpios :
description : A connection of the 'enable' gpio line.
maxItems : 1
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richtek,ld-pulse-delay-us :
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description : |
load current pulse delay in microsecond after strobe pin pulse high.
minimum : 0
maximum : 100000
default : 0
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richtek,ld-pulse-width-us :
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description : |
Load current pulse width in microsecond after strobe pin pulse high.
minimum : 0
maximum : 10000
default : 1200
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richtek,fsin1-delay-us :
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description : |
Fsin1 pulse high delay in microsecond after vsync signal pulse high.
minimum : 0
maximum : 100000
default : 23000
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richtek,fsin1-width-us :
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description : |
Fsin1 pulse high width in microsecond after vsync signal pulse high.
minimum : 40
maximum : 10000
default : 160
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richtek,fsin2-delay-us :
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description : |
Fsin2 pulse high delay in microsecond after vsync signal pulse high.
minimum : 0
maximum : 100000
default : 23000
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richtek,fsin2-width-us :
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description : |
Fsin2 pulse high width in microsecond after vsync signal pulse high.
minimum : 40
maximum : 10000
default : 160
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richtek,es-pulse-width-us :
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description : Eye safety function pulse width limit in microsecond.
minimum : 0
maximum : 10000
default : 1200
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richtek,es-ld-current-microamp :
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description : Eye safety function load current limit in microamp.
minimum : 0
maximum : 6000000
default : 3000000
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richtek,lbp-level-microvolt :
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description : Low battery protection level in microvolt.
minimum : 2400000
maximum : 3700000
default : 2700000
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richtek,lbp-enable :
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description : Low battery protection function enable control.
type : boolean
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richtek,strobe-polarity-high :
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description : Strobe pin active polarity control.
type : boolean
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richtek,vsync-polarity-high :
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description : Vsync pin active polarity control.
type : boolean
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richtek,fsin-enable :
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description : Fsin function enable control.
type : boolean
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richtek,fsin-output :
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description : Fsin function output control.
type : boolean
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richtek,es-enable :
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description : Eye safety function enable control.
type : boolean
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lsw :
description : load switch current regulator description.
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type : object
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$ref : regulator.yaml#
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required :
- compatible
- reg
- wakeup-source
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- interrupts
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- enable-gpios
- lsw
additionalProperties : false
examples :
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
rtmv20@34 {
compatible = "richtek,rtmv20";
reg = <0x34>;
wakeup-source;
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interrupts-extended = <&gpio26 2 IRQ_TYPE_LEVEL_LOW>;
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enable-gpios = <&gpio26 3 0>;
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richtek,strobe-polarity-high;
richtek,vsync-polarity-high;
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lsw {
regulator-name = "rtmv20,lsw";
regulator-min-microamp = <0>;
regulator-max-microamp = <6000000>;
};
};
};
...
