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e39d87fd28
Convert the ArcticSand arc2c0608 LED driver to the dt-schema. Signed-off-by: Harrison Carter <hcarter@thegoodpenguin.co.uk> Acked-by: Conor Dooley <conor.dooley@microchip.com> Signed-off-by: Lee Jones <lee@kernel.org>
109 lines
2.7 KiB
YAML
109 lines
2.7 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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$id: http://devicetree.org/schemas/leds/backlight/arc,arc2c0608.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: ArcticSand arc2c0608 LED driver
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description: |
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The ArcticSand arc2c0608 LED driver provides ultra
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efficient notebook backlighting. Optional properties not
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specified will default to values in IC EPROM.
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Datasheet:
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https://www.murata.com/-/media/webrenewal/products/power/power-semiconductor/overview/lineup/led-boost/arc2/arc2c0608.ashx.
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maintainers:
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- Brian Dodge <bdodge@arcticsand.com>
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allOf:
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- $ref: /schemas/leds/common.yaml
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properties:
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compatible:
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const: arc,arc2c0608
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reg:
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maxItems: 1
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default-brightness:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 4095
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led-sources:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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description: List of enabled channels
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items:
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enum: [0, 1, 2, 3, 4, 5]
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minItems: 1
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uniqueItems: true
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arc,led-config-0:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Fading speed (period between intensity
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steps)
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arc,led-config-1:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: If set, sets ILED_CONFIG register. Used for
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fine tuning the maximum LED current.
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arc,dim-freq:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: PWM mode frequency setting (bits [3:0] used)
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arc,comp-config:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Setting for register CONFIG_COMP which
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controls internal resitances, feed forward freqs,
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and initial VOUT at startup. Consult the datasheet.
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arc,filter-config:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: RC and PWM Filter settings.
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Bit Assignment
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7654 3 2 1 0
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xxxx RCF1 RCF0 PWM1 PWM0
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RCF statuses PWM Filter Statues
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00 = OFF (default) 00 = OFF (default)
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01 = LOW 01 = 2 STEPS
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10 - MEDIUM 10 = 4 STEPS
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11 = HIGH 11 = 8 STEPS
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arc,trim-config:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Sets percentage increase of Maximum LED
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Current.
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0x00 = 0% increase.
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0x20 = 20.2%.
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0x3F = 41.5%
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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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examples:
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- |
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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@30 {
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compatible = "arc,arc2c0608";
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reg = <0x30>;
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default-brightness = <500>;
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label = "lcd-backlight";
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linux,default-trigger = "backlight";
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led-sources = <0 1 2 5>;
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};
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};
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...
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