From patchwork Mon May 18 13:27:30 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dongchun Zhu X-Patchwork-Id: 11555423 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6DEBA739 for ; Mon, 18 May 2020 13:29:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4E47A207E8 for ; Mon, 18 May 2020 13:29:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=mediatek.com header.i=@mediatek.com header.b="D6ZPgGvt" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727036AbgERN3I (ORCPT ); Mon, 18 May 2020 09:29:08 -0400 Received: from mailgw01.mediatek.com ([210.61.82.183]:62162 "EHLO mailgw01.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1726854AbgERN3I (ORCPT ); Mon, 18 May 2020 09:29:08 -0400 X-UUID: 608a92f25fcb4fe185d9f4044a9a2829-20200518 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=g15FnE7ziSkrJN0su29GRKgyMZyJ0r3PsMCp1097sRU=; b=D6ZPgGvtu0gDmyYZaSBiQ0LHw0vefDmvczo14vrXKBXf5r8MpZJyNh+wGZkow34axBMRFG4PNApKJNu8X59fl6CJg5nar/4cmJ7PTZBiHsIbFv8HKfZEApGc78SkAbG261fepTJibsX5BeXUjo3bC+d1Q31YMJKeCn6y2ycAq9w=; X-UUID: 608a92f25fcb4fe185d9f4044a9a2829-20200518 Received: from mtkcas07.mediatek.inc [(172.21.101.84)] by mailgw01.mediatek.com (envelope-from ) (Cellopoint E-mail Firewall v4.1.10 Build 0809 with TLS) with ESMTP id 1627975910; Mon, 18 May 2020 21:29:05 +0800 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Mon, 18 May 2020 21:29:03 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Mon, 18 May 2020 21:29:01 +0800 From: Dongchun Zhu To: , , , , , , , , , , CC: , , , , , , , , Subject: [V6, 1/2] media: dt-bindings: media: i2c: Document DW9768 bindings Date: Mon, 18 May 2020 21:27:30 +0800 Message-ID: <20200518132731.20855-2-dongchun.zhu@mediatek.com> X-Mailer: git-send-email 2.9.2 In-Reply-To: <20200518132731.20855-1-dongchun.zhu@mediatek.com> References: <20200518132731.20855-1-dongchun.zhu@mediatek.com> MIME-Version: 1.0 X-MTK: N Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add DeviceTree binding documentation for Dongwoon Anatech DW9768 voice coil actuator. Signed-off-by: Dongchun Zhu Reviewed-by: Rob Herring --- .../bindings/media/i2c/dongwoon,dw9768.yaml | 105 +++++++++++++++++++++ MAINTAINERS | 7 ++ 2 files changed, 112 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml diff --git a/Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml b/Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml new file mode 100644 index 0000000..b909e83 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml @@ -0,0 +1,105 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright (c) 2020 MediaTek Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/i2c/dongwoon,dw9768.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Dongwoon Anatech DW9768 Voice Coil Motor (VCM) Lens Device Tree Bindings + +maintainers: + - Dongchun Zhu + +description: |- + The Dongwoon DW9768 is a single 10-bit digital-to-analog (DAC) converter + with 100 mA output current sink capability. VCM current is controlled with + a linear mode driver. The DAC is controlled via a 2-wire (I2C-compatible) + serial interface that operates at clock rates up to 1MHz. This chip + integrates Advanced Actuator Control (AAC) technology and is intended for + driving voice coil lenses in camera modules. + +properties: + compatible: + enum: + # for DW9768 VCM + - dongwoon,dw9768 + # for GT9769 VCM + - giantec,gt9769 + + reg: + maxItems: 1 + + vin-supply: + description: + Definition of the regulator used as I2C I/O interface power supply. + + vdd-supply: + description: + Definition of the regulator used as VCM chip power supply. + + dongwoon,aac-mode: + description: + Indication of AAC mode select. + allOf: + - $ref: "/schemas/types.yaml#/definitions/uint32" + - enum: + - 0 # Direct (default) + - 1 # AAC2 (operation time# 0.48 x Tvib) + - 2 # AAC3 (operation time# 0.70 x Tvib) + - 3 # AAC4 (operation time# 0.75 x Tvib) + - 4 # Reserved + - 5 # AAC8 (operation time# 1.13 x Tvib) + - 6 # Reserved + - 7 # Reserved + + dongwoon,aac-timing: + description: + Indication of AAC Timing count, unit of 0.1 milliseconds. + Valid values vary from 0 to 63 (default 32). + allOf: + - $ref: "/schemas/types.yaml#/definitions/uint32" + + dongwoon,clock-dividing-rate: + description: + Indication of VCM internal clock dividing rate select, as one multiple + factor to calculate VCM ring periodic time Tvib. + allOf: + - $ref: "/schemas/types.yaml#/definitions/uint32" + - enum: + - 0 # Dividing Rate - 2 + - 1 # Dividing Rate - 1 (default) + - 2 # Dividing Rate - 1/2 + - 3 # Dividing Rate - 1/4 + - 4 # Dividing Rate - 8 + - 5 # Dividing Rate - 4 + - 6 # Dividing Rate - Reserved + - 7 # Dividing Rate - Reserved + +required: + - compatible + - reg + - vin-supply + - vdd-supply + +additionalProperties: false + +examples: + - | + + i2c { + clock-frequency = <400000>; + #address-cells = <1>; + #size-cells = <0>; + + dw9768: camera-lens@c { + compatible = "dongwoon,dw9768"; + reg = <0x0c>; + + vin-supply = <&mt6358_vcamio_reg>; + vdd-supply = <&mt6358_vcama2_reg>; + dongwoon,aac-mode = <2>; + dongwoon,aac-timing = <57>; + }; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index e64e5db..8d72c41 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5151,6 +5151,13 @@ T: git git://linuxtv.org/media_tree.git F: Documentation/devicetree/bindings/media/i2c/dongwoon,dw9714.txt F: drivers/media/i2c/dw9714.c +DONGWOON DW9768 LENS VOICE COIL DRIVER +M: Dongchun Zhu +L: linux-media@vger.kernel.org +S: Maintained +T: git git://linuxtv.org/media_tree.git +F: Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml + DONGWOON DW9807 LENS VOICE COIL DRIVER M: Sakari Ailus L: linux-media@vger.kernel.org