Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
68 lines
1.6 KiB
YAML
68 lines
1.6 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/leds/backlight/richtek,rt4831-backlight.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: Richtek RT4831 Backlight
|
|
|
|
maintainers:
|
|
- ChiYuan Huang <cy_huang@richtek.com>
|
|
|
|
description: |
|
|
RT4831 is a mutifunctional device that can provide power to the LCD display
|
|
and LCD backlight.
|
|
|
|
For the LCD backlight, it can provide four channel WLED driving capability.
|
|
Each channel driving current is up to 30mA
|
|
|
|
Datasheet is available at
|
|
https://www.richtek.com/assets/product_file/RT4831A/DS4831A-05.pdf
|
|
|
|
allOf:
|
|
- $ref: common.yaml#
|
|
|
|
properties:
|
|
compatible:
|
|
const: richtek,rt4831-backlight
|
|
|
|
default-brightness:
|
|
minimum: 0
|
|
maximum: 2048
|
|
|
|
max-brightness:
|
|
minimum: 0
|
|
maximum: 2048
|
|
|
|
richtek,pwm-enable:
|
|
description: |
|
|
Specify the backlight dimming following by PWM duty or by SW control.
|
|
type: boolean
|
|
|
|
richtek,bled-ovp-sel:
|
|
description: |
|
|
Backlight OVP level selection, currently support 17V/21V/25V/29V.
|
|
$ref: /schemas/types.yaml#/definitions/uint8
|
|
default: 1
|
|
minimum: 0
|
|
maximum: 3
|
|
|
|
richtek,bled-ocp-microamp:
|
|
description: |
|
|
Backlight over current protection level.
|
|
enum: [900000, 1200000, 1500000, 1800000]
|
|
|
|
richtek,channel-use:
|
|
description: |
|
|
Backlight LED channel to be used.
|
|
BIT 0/1/2/3 is used to indicate led channel 1/2/3/4 enable or disable.
|
|
$ref: /schemas/types.yaml#/definitions/uint8
|
|
minimum: 1
|
|
maximum: 15
|
|
|
|
required:
|
|
- compatible
|
|
- richtek,channel-use
|
|
|
|
additionalProperties: false
|