dongwoon,dw9768.yaml (2713B)
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2# Copyright (c) 2020 MediaTek Inc. 3%YAML 1.2 4--- 5$id: http://devicetree.org/schemas/media/i2c/dongwoon,dw9768.yaml# 6$schema: http://devicetree.org/meta-schemas/core.yaml# 7 8title: Dongwoon Anatech DW9768 Voice Coil Motor (VCM) Lens Device Tree Bindings 9 10maintainers: 11 - Dongchun Zhu <dongchun.zhu@mediatek.com> 12 13description: |- 14 The Dongwoon DW9768 is a single 10-bit digital-to-analog (DAC) converter 15 with 100 mA output current sink capability. VCM current is controlled with 16 a linear mode driver. The DAC is controlled via a 2-wire (I2C-compatible) 17 serial interface that operates at clock rates up to 1MHz. This chip 18 integrates Advanced Actuator Control (AAC) technology and is intended for 19 driving voice coil lenses in camera modules. 20 21properties: 22 compatible: 23 enum: 24 - dongwoon,dw9768 # for DW9768 VCM 25 - giantec,gt9769 # for GT9769 VCM 26 27 reg: 28 maxItems: 1 29 30 vin-supply: 31 description: 32 Definition of the regulator used as Digital I/O voltage supply. 33 34 vdd-supply: 35 description: 36 Definition of the regulator used as Digital core voltage supply. 37 38 dongwoon,aac-mode: 39 description: 40 Indication of AAC mode select. 41 $ref: "/schemas/types.yaml#/definitions/uint32" 42 enum: 43 - 1 # AAC2 mode(operation time# 0.48 x Tvib) 44 - 2 # AAC3 mode(operation time# 0.70 x Tvib) 45 - 3 # AAC4 mode(operation time# 0.75 x Tvib) 46 - 5 # AAC8 mode(operation time# 1.13 x Tvib) 47 default: 2 48 49 dongwoon,aac-timing: 50 description: 51 Number of AAC Timing count that controlled by one 6-bit period of 52 vibration register AACT[5:0], the unit of which is 100 us. 53 $ref: "/schemas/types.yaml#/definitions/uint32" 54 default: 0x20 55 minimum: 0x00 56 maximum: 0x3f 57 58 dongwoon,clock-presc: 59 description: 60 Indication of VCM internal clock dividing rate select, as one multiple 61 factor to calculate VCM ring periodic time Tvib. 62 $ref: "/schemas/types.yaml#/definitions/uint32" 63 enum: 64 - 0 # Dividing Rate - 2 65 - 1 # Dividing Rate - 1 66 - 2 # Dividing Rate - 1/2 67 - 3 # Dividing Rate - 1/4 68 - 4 # Dividing Rate - 8 69 - 5 # Dividing Rate - 4 70 default: 1 71 72required: 73 - compatible 74 - reg 75 - vin-supply 76 - vdd-supply 77 78additionalProperties: false 79 80examples: 81 - | 82 83 i2c { 84 #address-cells = <1>; 85 #size-cells = <0>; 86 87 dw9768: camera-lens@c { 88 compatible = "dongwoon,dw9768"; 89 reg = <0x0c>; 90 91 vin-supply = <&mt6358_vcamio_reg>; 92 vdd-supply = <&mt6358_vcama2_reg>; 93 dongwoon,aac-timing = <0x39>; 94 }; 95 }; 96 97...