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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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494d3c55d8
Add bindings for Texas Instruments' LP8864/LP8866 LED-backlight drivers. Note that multiple channels in these models are used for load-balancing and brightness is controlled gobally, so from a user perspective it's only one LED. Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Alexander Sverdlin <alexander.sverdlin@siemens.com> Link: https://lore.kernel.org/r/20241218210829.73191-2-alexander.sverdlin@siemens.com Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
81 lines
1.8 KiB
YAML
81 lines
1.8 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/leds/backlight/ti,lp8864.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Texas Instruments - LP8864/LP8866 4/6-Channel LED Driver family
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maintainers:
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- Andrew Davis <afd@ti.com>
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- Alexander Sverdlin <alexander.sverdlin@siemens.com>
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description: |
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LP8866-Q1, LP8866S-Q1, LP8864-Q1, LP8864S-Q1 are display LED-backlight drivers
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with 4/6 channels. LED brightness can be controlled globally through the I2C
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interface or PWM input.
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For more product information please see the links below:
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https://www.ti.com/product/LP8864-Q1
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https://www.ti.com/product/LP8864S-Q1
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https://www.ti.com/product/LP8866-Q1
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https://www.ti.com/product/LP8866S-Q1
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properties:
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compatible:
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const: ti,lp8864
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reg:
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maxItems: 1
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description: I2C slave address
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enable-gpios:
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maxItems: 1
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description: GPIO pin to enable (active high) / disable the device
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vled-supply:
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description: LED supply
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led:
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type: object
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$ref: common.yaml#
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properties:
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function: true
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color: true
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label: true
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linux,default-trigger: true
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additionalProperties: false
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required:
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- compatible
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- reg
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- led
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/leds/common.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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led-controller@3a {
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compatible = "ti,lp8864";
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reg = <0x3a>;
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enable-gpios = <&gpio1 28 GPIO_ACTIVE_HIGH>;
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vled-supply = <&vbatt>;
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led {
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function = LED_FUNCTION_BACKLIGHT;
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color = <LED_COLOR_ID_WHITE>;
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linux,default-trigger = "backlight";
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};
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};
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};
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...
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