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dt-bindings: backlight: arcxcnn: Supply bindings for Arctic Sand backlight

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Signed-off-by: Olimpiu Dejeu <olimpiu@arcticsand.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Daniel Thompson <daniel.thompson@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Olimpiu Dejeu 2017-03-21 12:58:47 -04:00 committed by Lee Jones
parent c1ae3cfa0e
commit ce9d22573d
1 changed files with 33 additions and 0 deletions
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Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt Normal file
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Binding for ArcticSand arc2c0608 LED driver
Required properties:
- compatible: should be "arc,arc2c0608"
- reg: slave address
Optional properties:
- default-brightness: brightness value on boot, value from: 0-4095
- label: The name of the backlight device
See Documentation/devicetree/bindings/leds/common.txt
- led-sources: List of enabled channels from 0 to 5.
See Documentation/devicetree/bindings/leds/common.txt
- arc,led-config-0: setting for register ILED_CONFIG_0
- arc,led-config-1: setting for register ILED_CONFIG_1
- arc,dim-freq: PWM mode frequence setting (bits [3:0] used)
- arc,comp-config: setting for register CONFIG_COMP
- arc,filter-config: setting for register FILTER_CONFIG
- arc,trim-config: setting for register IMAXTUNE
Note: Optional properties not specified will default to values in IC EPROM
Example:
arc2c0608@30 {
compatible = "arc,arc2c0608";
reg = <0x30>;
default-brightness = <500>;
label = "lcd-backlight";
linux,default-trigger = "backlight";
led-sources = <0 1 2 5>;
};