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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/leds/backlight/apple,dwi-bl.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Apple DWI 2-Wire Interface Backlight Controller
maintainers:
- Nick Chan <towinchenmi@gmail.com>
description:
Apple SoCs contain a 2-wire interface called DWI. On some Apple iPhones,
iPads and iPod touches with a LCD display, 1-2 backlight controllers
are connected via DWI. Interfacing with DWI controls all backlight
controllers at the same time. As such, the backlight controllers are
treated as a single controller regardless of the underlying
configuration.
allOf:
- $ref: common.yaml#
properties:
compatible:
items:
- enum:
- apple,s5l8960x-dwi-bl
- apple,t7000-dwi-bl
- apple,s8000-dwi-bl
- apple,t8010-dwi-bl
- apple,t8015-dwi-bl
- const: apple,dwi-bl
reg:
maxItems: 1
power-domains:
maxItems: 1
required:
- compatible
- reg
unevaluatedProperties: false
examples:
- |
soc {
#address-cells = <2>;
#size-cells = <2>;
dwi_bl: backlight@20e200010 {
compatible = "apple,s5l8960x-dwi-bl", "apple,dwi-bl";
reg = <0x2 0x0e200010 0x0 0x8>;
power-domains = <&ps_dwi>;
};
};
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