From patchwork Tue Jan 24 11:13:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manuel Traut X-Patchwork-Id: 646355 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1D6EDC25B4E for ; Tue, 24 Jan 2023 11:13:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232896AbjAXLNg (ORCPT ); Tue, 24 Jan 2023 06:13:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43704 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233279AbjAXLNf (ORCPT ); Tue, 24 Jan 2023 06:13:35 -0500 Received: from EUR03-DBA-obe.outbound.protection.outlook.com (mail-dbaeur03on2123.outbound.protection.outlook.com [40.107.104.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A91BFEC63; Tue, 24 Jan 2023 03:13:34 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=RVhvvgMxMWq8r6se6EOEMvym5azmhiDkJJkB689h2USgqTP1eOa8RVFl12az+I53VOUIg/YXoocE5F2H7M+C5lFF5Hk79aD6ipydwcb58c901HtIFUPCZqfGGZm1T+W02wFeUJIeGX9U7mQpAmDwUD1zxccte0yCQKrREZLj08uVEZuIjSCiPC919KNxteBlsnLWCxac0e0uCaMN0ByJULvX4X7xb6kXZvo9fCW9qprzh65tWi+pejHBUC2baFy+3eQCTW7HzcAU+C4uJzXqjns7ay7cvGI3ZF6MK6vE5em0ujkMZi3ehpe/8Yz99DbZdpj5a++UarsMk1dhjjs6+w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=WnodbyZMopN7JaAyoJy+8eyLEBzx5ZhK8voZ+UTUvUc=; b=UkD6qPtlPdzsB9cQwgWpId/tjTYcfQC08jdjI9DWHyT8P29nXVp5tl2EUHHUiOOczWgMt1twbqq3nDrxgjRGbrPNna1IXFsUlrThChSLh8zUpWOspRVgUhV57eqP96ITgCFkSs9pfHz8lFsarg5jzCjnirbThfCZ5oVGavko5+kiP913E9xPi4E8a9H+HzVfNZdN03i9XjPZNzyLsSzM1OJQuaB9h4V8uiozrCNED4UL8JebqQcHLei/Nypczvk+BnwilaDU4vRpfIyiPv0xWTFSvJj5dJ1bFPowtGVilNlBCJ7sThwQpXoCz6lVhysiZu0Yq2WNA3rm+//lvTjtzw== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=mt.com; dmarc=pass action=none header.from=mt.com; dkim=pass header.d=mt.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mt.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=WnodbyZMopN7JaAyoJy+8eyLEBzx5ZhK8voZ+UTUvUc=; b=CxaLKHjkcMMJvOMNccXgh/9aq8s6KUpqwfYdSb8rhFy8ilc28XRZrtOpN21tNsBjVOv9ex1MKU6j7XQlMxqc09A5XLsP0ZZXTSCpvJtCK9uNtG8shLej26DDJA/hd/58OxVeaHXrJNbA+oDOTZZrViJBG1jj+1yb0Z9JBdlLMJZiA/ln4X5Ovmr98WqHsSm7tm7K3cj4u2W1Q5zbTvzuofwuT9FgiskZE3gl7tjvviZ4pIlJ+tSSO9QP2Dl9jz4H7vVsCCqb3GdggLVejrglzYFTgbX8XGqatrcXCcX1LUCqrlKxujRBh/iU0WxcJ2JWxG0Ip/YH/XBebRnD9kAczA== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=mt.com; Received: from AS8PR03MB7621.eurprd03.prod.outlook.com (2603:10a6:20b:345::20) by DB9PR03MB9639.eurprd03.prod.outlook.com (2603:10a6:10:45b::11) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6002.33; Tue, 24 Jan 2023 11:13:31 +0000 Received: from AS8PR03MB7621.eurprd03.prod.outlook.com ([fe80::b42f:82f8:24cb:a225]) by AS8PR03MB7621.eurprd03.prod.outlook.com ([fe80::b42f:82f8:24cb:a225%5]) with mapi id 15.20.6002.033; Tue, 24 Jan 2023 11:13:31 +0000 Date: Tue, 24 Jan 2023 12:13:29 +0100 From: Manuel Traut To: linux-kernel@vger.kernel.org Cc: Dmitry Torokhov , Frieder Schrempf , linux-input@vger.kernel.org Subject: [PATCH 2/3 v6] input: pwm-beeper: add feature to set volume level Message-ID: References: Content-Disposition: inline In-Reply-To: X-ClientProxiedBy: AS4P189CA0036.EURP189.PROD.OUTLOOK.COM (2603:10a6:20b:5dd::7) To AS8PR03MB7621.eurprd03.prod.outlook.com (2603:10a6:20b:345::20) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: AS8PR03MB7621:EE_|DB9PR03MB9639:EE_ X-MS-Office365-Filtering-Correlation-Id: 8202e2c4-155f-43fa-98c1-08dafdfc06f9 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:AS8PR03MB7621.eurprd03.prod.outlook.com; PTR:; CAT:NONE; SFS:(13230022)(346002)(366004)(136003)(396003)(39860400002)(376002)(451199015)(2906002)(54906003)(41300700001)(4326008)(66476007)(66946007)(36756003)(6916009)(66556008)(8676002)(44832011)(5660300002)(2616005)(8936002)(316002)(186003)(6512007)(38350700002)(86362001)(6506007)(38100700002)(26005)(52116002)(6486002)(478600001); DIR:OUT; SFP:1102; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?q?ALRYwTHsNUWeE/PpSso016i1Y6zy?= =?utf-8?q?XJ4IlAeiRmlbhPyuiwMLFoMPaJ7kSKKzUmwiwEPVvT/tPuQkyyeVTSkqHY4Uec3Xu?= =?utf-8?q?vFAmD2e/2LFB9hZGqD/hZYtEpp/pIdUpqVLPxAAq3yOR5uIYeh0cweRPjj9KSHIfH?= =?utf-8?q?sMhmuLjYw4vrEb6GxVjB1KF6rLh8hm2CToYACWrxb7ywj72/qgdY8Q1+kLVez7kgN?= =?utf-8?q?8HCfazYuDW6ldWyRjF3KcGV0YVvyvF946ezyrRdK2ompQ6W8Rqq9VMs8GHQGIOHiC?= =?utf-8?q?tvIJ1ELjmJAFUozqWfEUgYygnfPJDqF3Bf6J3zeVWNEIiB+2u+0yYJRJPm3jDjwcI?= =?utf-8?q?P9RcTDsjKo/toNSoEGBhZKVwCZiry2NcE4xhecCkX0aRa6MA/5DqmUvpYsRONtlxv?= =?utf-8?q?8v+8eNSN+MC1SGCfuDgdF8SWRpflappK702RAyGPOLBMtSHF+ir/rqDj+4PemyJh8?= =?utf-8?q?fBu2y3x3L5OjIcBFNVKbkHYPCzB/0Hn4D8TNXz9nWP7Hb0DeiQYxhmWn3U2F7Bo3k?= =?utf-8?q?HIqEe7M8HZQUzJuEHz9eU50xqaZHgZIP7IIO9sm9auCJ9B6MeWS4mgqwX6xniRa0p?= =?utf-8?q?UTek2ShdImhn7ipQR8tG1Pp/bR4p0kS+9/cWUeeZVywxM0efl6k4KWk6YUFoF4AEN?= =?utf-8?q?AopiCLUP7oh6Y+F/mva42ZJslqhXq/VB4QGAxeAflVMJj0gWNL6383AFH37/JMijF?= =?utf-8?q?5XjHucnNU0sIcfWHF7qVVBTlnugpASt6HBo1tZ18kMbF4jrkaR6TI89Clm2LthpjU?= =?utf-8?q?YMKaRtletMFgQMWDG1WvYCuazSkWRoePv6SvAT0wp65VLKAbQcJJzTLMAutIisDSk?= =?utf-8?q?UW1l/hQbhnDxPA9fq7duWA30a3FIAe9VJDubOEpdm2drBPkb5lQuUh/46Ladq4d/o?= =?utf-8?q?33ocUAAlGWlQ0IpNSeFcqa21BjmL9d7RZ5SceoQtxjKgvE0/T2C/3eYyIm+VRRNtr?= =?utf-8?q?SM99Ka0LyEo+a2N4rA+3QdVS/ZSRZHdhvqq05CJcfZkEw00KYlrRUgSsn61OnQpMW?= =?utf-8?q?D+uU0JqprPAi07hCgvIYRiFjmrpP6vtFXrs2Cui7i33U+SnakDuaqSB6ufwz06p7H?= =?utf-8?q?asfzUZApqGD7wGi5dtgRP+Cbta8Wf4KLAsxsZoeUeov7WjEmkn0Qll52jORYcensn?= =?utf-8?q?nHDiu66HWJH3aJbcZtUHiJEwnoTdafS4O3AKwZjLlACoIFgy0d/fTGpLs6erFzsJ1?= =?utf-8?q?1Cd3V8Anf+cuhOLc3Yt+FtJkcFCpe+8vsT/IMLa+vtdqIQQB/u7lrvzHGY4tLLm/s?= =?utf-8?q?Hzu38M0voRsSwq/omO3YhsR3MKIMQZA7E0J6S5C+pmpIjmDlcChBm564hPjCMa4/2?= =?utf-8?q?bdPuzVKpNvi9LiupbHKbe4KsFP9og+BXcJF3dGM3TX1VMBkfqg9lkGFDAhQFFdUJq?= =?utf-8?q?N4ptU0lU25TQFjtJsCu4MEvqNUuWrayT3eEbebYQPGJVFmgGF5vwAPCE+Rp1bJLr5?= =?utf-8?q?cHbpRN8RQcKzu5KOp80TJs7plBuWDBk8+g06+Gxi4JAqm7mW0uh4tgXDYIRSQDp8u?= =?utf-8?q?L93GZXnxzjQI?= X-OriginatorOrg: mt.com X-MS-Exchange-CrossTenant-Network-Message-Id: 8202e2c4-155f-43fa-98c1-08dafdfc06f9 X-MS-Exchange-CrossTenant-AuthSource: AS8PR03MB7621.eurprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 24 Jan 2023 11:13:31.7890 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: fb4c0aee-6cd2-482f-a1a5-717e7c02496b X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: b8JjyLNwiyv/EypsAcuvqcOmKhDu8S7ubHHQxR7ZzQ8NUqnRHKJv3UiTOOdrbyuKGOoSiHm2PlXiXw4koTFnpg== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB9PR03MB9639 Precedence: bulk List-ID: X-Mailing-List: linux-input@vger.kernel.org This patch adds the documentation for the devicetree bindings to set the volume levels. Signed-off-by: Frieder Schrempf Acked-by: Rob Herring --- .../devicetree/bindings/input/pwm-beeper.txt | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/devicetree/bindings/input/pwm-beeper.txt b/Documentation/devicetree/bindings/input/pwm-beeper.txt index 8fc0e48c20db..93cab5eee9f2 100644 --- a/Documentation/devicetree/bindings/input/pwm-beeper.txt +++ b/Documentation/devicetree/bindings/input/pwm-beeper.txt @@ -9,6 +9,15 @@ Required properties: Optional properties: - amp-supply: phandle to a regulator that acts as an amplifier for the beeper - beeper-hz: bell frequency in Hz +- volume-levels: Array of PWM duty cycle values that correspond to + linear volume levels. These need to be in the range of 0 to 500, + while 0 means 0% duty cycle (mute) and 500 means 50% duty cycle + (max volume). + Please note that the actual volume of most beepers is highly + non-linear, which means that low volume levels are probably somewhere + in the range of 1 to 30 (0.1-3% duty cycle). +- default-volume-level: the default volume level (index into the + array defined by the "volume-levels" property) Example: @@ -21,4 +30,6 @@ beeper { compatible = "pwm-beeper"; pwms = <&pwm0>; amp-supply = <&beeper_amp>; + volume-levels = <0 8 20 40 500>; + default-volume-level = <4>; };