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Document the Dongwoon Anatech DW9800K. Acked-by: Rob Herring (Arm) <robh@kernel.org> Signed-off-by: Griffin Kroah-Hartman <griffin.kroah@fairphone.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
90 lines
2.3 KiB
YAML
90 lines
2.3 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/media/i2c/dongwoon,dw9719.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Dongwoon Anatech DW9719 Voice Coil Motor (VCM) Controller
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maintainers:
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- André Apitzsch <git@apitzsch.eu>
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description:
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The Dongwoon DW9718S/9719/9761 is a single 10-bit digital-to-analog converter
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with 100 mA output current sink capability, designed for linear control of
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voice coil motors (VCM) in camera lenses. This chip provides a Smart Actuator
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Control (SAC) mode intended for driving voice coil lenses in camera modules.
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properties:
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compatible:
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enum:
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- dongwoon,dw9718s
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- dongwoon,dw9719
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- dongwoon,dw9761
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- dongwoon,dw9800k
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reg:
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maxItems: 1
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vdd-supply:
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description: VDD power supply
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dongwoon,sac-mode:
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description: |
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Slew Rate Control mode to use: direct, LSC (Linear Slope Control) or
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SAC1-SAC6 (Smart Actuator Control).
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$ref: /schemas/types.yaml#/definitions/uint32
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enum:
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- 0 # Direct mode
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- 1 # LSC mode
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- 2 # SAC1 mode (operation time# 0.32 x Tvib)
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- 3 # SAC2 mode (operation time# 0.48 x Tvib)
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- 4 # SAC3 mode (operation time# 0.72 x Tvib)
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- 5 # SAC4 mode (operation time# 1.20 x Tvib)
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- 6 # SAC5 mode (operation time# 1.64 x Tvib)
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- 7 # SAC6 mode (operation time# 1.88 x Tvib)
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default: 4
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dongwoon,vcm-prescale:
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description:
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Indication of VCM switching frequency dividing rate select.
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$ref: /schemas/types.yaml#/definitions/uint32
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required:
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- compatible
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- reg
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- vdd-supply
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allOf:
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- if:
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properties:
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compatible:
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contains:
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const: dongwoon,dw9718s
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then:
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properties:
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dongwoon,vcm-prescale:
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description:
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The final frequency is 10 MHz divided by (value + 2).
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maximum: 15
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default: 0
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additionalProperties: false
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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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actuator@c {
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compatible = "dongwoon,dw9718s";
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reg = <0x0c>;
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vdd-supply = <&pm8937_l17>;
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dongwoon,sac-mode = <4>;
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dongwoon,vcm-prescale = <0>;
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};
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};
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