111 lines
2.4 KiB
YAML
111 lines
2.4 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/leds/ti.lm36922.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Texas Instruments - LM3692x Highly Efficient White LED Driver
|
|
|
|
maintainers:
|
|
- Dan Murphy <dmurphy@ti.com>
|
|
|
|
description: |
|
|
The LM3692x is an ultra-compact, highly efficient,
|
|
white-LED driver designed for LCD display backlighting.
|
|
|
|
The main difference between the LM36922 and LM36923 is the number of
|
|
LED strings it supports. The LM36922 supports two strings while the LM36923
|
|
supports three strings.
|
|
|
|
For more product information please see the link below:
|
|
https://www.ti.com/lit/ds/snvsa29/snvsa29.pdf
|
|
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- ti,lm36922
|
|
- ti,lm36923
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
"#address-cells":
|
|
const: 1
|
|
|
|
"#size-cells":
|
|
const: 0
|
|
|
|
enable-gpios:
|
|
description: gpio pin to enable/disable the device.
|
|
|
|
vled-supply:
|
|
description: LED supply
|
|
|
|
ti,ovp-microvolt:
|
|
description: Overvoltage protection.
|
|
default: 29000000
|
|
enum: [17000000, 21000000, 25000000, 29000000]
|
|
|
|
patternProperties:
|
|
'^led@[0-3]$':
|
|
type: object
|
|
$ref: common.yaml
|
|
properties:
|
|
reg:
|
|
enum: [0, 1, 2, 3]
|
|
description: |
|
|
0 - Will enable all LED sync paths
|
|
1 - Will enable the LED1 sync
|
|
2 - Will enable the LED2 sync
|
|
3 - Will enable the LED3 sync (LM36923 only)
|
|
|
|
unevaluatedProperties: false
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- "#address-cells"
|
|
- "#size-cells"
|
|
|
|
allOf:
|
|
- if:
|
|
properties:
|
|
compatible:
|
|
contains:
|
|
const: ti,lm36922
|
|
then:
|
|
properties:
|
|
led@3: false
|
|
|
|
additionalProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/gpio/gpio.h>
|
|
#include <dt-bindings/leds/common.h>
|
|
|
|
i2c {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
led-controller@36 {
|
|
compatible = "ti,lm36922";
|
|
reg = <0x36>;
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
|
|
enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
|
|
vled-supply = <&vbatt>;
|
|
ti,ovp-microvolt = <29000000>;
|
|
|
|
led@0 {
|
|
reg = <0>;
|
|
function = LED_FUNCTION_BACKLIGHT;
|
|
color = <LED_COLOR_ID_WHITE>;
|
|
linux,default-trigger = "backlight";
|
|
led-max-microamp = <20000>;
|
|
};
|
|
};
|
|
};
|
|
|