Received: by 2002:a05:6a10:6d10:0:0:0:0 with SMTP id gq16csp1013278pxb; Fri, 22 Apr 2022 16:47:17 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwcJHfhPCOfZUirJINPi7pzKY7FN+wqxp7UBM4SWKkVPqgxkUUMOoiLCQVsziLP2JCi2qF3 X-Received: by 2002:a63:e355:0:b0:39d:7956:6d3c with SMTP id o21-20020a63e355000000b0039d79566d3cmr5895961pgj.385.1650671237686; Fri, 22 Apr 2022 16:47:17 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1650671237; cv=pass; d=google.com; s=arc-20160816; b=xPcs873+N6pEn+XB+VvcTL0a1Hx0+YF/kHl1PI40999YDXmrwJ+VTCZeQcUeht/9YP 06g28g5GhxvixwKDE9Cv8lHfoppI1h82EPSrDl0XifDKKuguRpwtanEnMwp7dw5aLBRk iiJXRfUZ7OeHMhywN1lUln80vEWr2Go0GCdQOpQ6Vs07vo2lDkifJHSAFAqMEixF7zq6 jv3tMnbbc0Hdb4g1q6JgqNJqhF0uSGvbJ0pNjdtRE4JzfXbpI5UatWf/Rtjw5/fuVhxj XW67J+l0zKVWzEo+D0UN5P2YbSWqKLu6YmG0Nb0IfY3mKz25nWsPLrrgI3KPnUWdiBEA VMbw== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :in-reply-to:from:references:cc:to:content-language:subject :user-agent:date:message-id:dkim-signature; bh=GzTJkwFu9v2KwFg8KqtdTXowFbJNRyJb12S2ODGPNUg=; b=oSxSXd7ohLlP8k4yUetcvaX8t4YJUozEoy2fBzrWbNRe3ibhBAWu4ZfVyZ/zyuCFYF Zwp0Y8k/zQ/NXdSsXSzF6U9ay/T3KsIE/2MHrcofuEJQDeBU4dy/uluwm+2jBOn8aVcI 9na+CiPxfRZyJ3WiGlAbkTw39T+cThRaNFSJz6PWwKpMucq5azU9Mv1aetFr84VV9+40 FuMFo53KcmTXq5QREmLlkFO0//sD+C1ESC4CFvfyzTijuiR3oq/kEKXle1/vsb9QFLZi fBQRgtj5UtFELlAtUgIWjFjl7mPifGe0x+R0GM5mLKFfMxxmrsv/4tu1cOy59H6Goegc jFGg== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@Nvidia.com header.s=selector2 header.b=EuvfOFMI; arc=pass (i=1 spf=pass spfdomain=nvidia.com dkim=pass dkdomain=nvidia.com dmarc=pass fromdomain=nvidia.com); spf=softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=nvidia.com Return-Path: Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net. [23.128.96.19]) by mx.google.com with ESMTPS id d125-20020a636883000000b003aa91344e53si5880947pgc.362.2022.04.22.16.47.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 22 Apr 2022 16:47:17 -0700 (PDT) Received-SPF: softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) client-ip=23.128.96.19; Authentication-Results: mx.google.com; dkim=pass header.i=@Nvidia.com header.s=selector2 header.b=EuvfOFMI; arc=pass (i=1 spf=pass spfdomain=nvidia.com dkim=pass dkdomain=nvidia.com dmarc=pass fromdomain=nvidia.com); spf=softfail (google.com: domain of transitioning linux-kernel-owner@vger.kernel.org does not designate 23.128.96.19 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=nvidia.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 6250221D036; Fri, 22 Apr 2022 16:16:07 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231539AbiDVXSd (ORCPT + 99 others); Fri, 22 Apr 2022 19:18:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43658 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233192AbiDVXRd (ORCPT ); Fri, 22 Apr 2022 19:17:33 -0400 Received: from NAM10-MW2-obe.outbound.protection.outlook.com (mail-mw2nam10on2043.outbound.protection.outlook.com [40.107.94.43]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 95C341869E7; Fri, 22 Apr 2022 15:52:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=eM8ltXRKjKnd7qLxCrcGbP+3875IyADGTab667CFr7KWA31t9UyPw+JoyiGpF+bhKOSa7huyT27rbcwZYr0K6TRfl7uqkMQDCY6ZNZjI8V1zd8J4rxjBxdganiQGqxavOng70R23Ds55zhqPwzU915W3v+I1YCD6YTHWKOySpckU0l0gI6L2iajfwLzBR4yZuXDGB9N3jXsdXk2eLOwn5T17RDm/TRjurOSSWp7BGs4nVwMS7ktgBIjSOM9hOU+HAcf5aD64ogEXYCwey/LB7nhr78zDzY4W3i4wn4u8M5ogdPd57YQ5vsUMyl/8O9o0re3j9euljrmaQdYJ42BUCA== 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=GzTJkwFu9v2KwFg8KqtdTXowFbJNRyJb12S2ODGPNUg=; b=UxjziI7dhLlqkSzkvgmv5IoPiuUrH3B0YDxdTyu7J5rhfGlM7YoghLKSeLqzR8eTiSOBKOyQRsvnvm3uNMcpbAx48Z7LAN6WPGIy8kJ29XygWqKl/9elwEBZU97amoMLSzKzeF88g2ieoI8ykeGmVV92ENrUt9Ow2gRFFeUM5P2P0yMv5OOPAj0TI7sFjdGCldufw+5d94zyf/YZei/IhRhTjG5P1jXp1804NBP05E6NxdkKid592Ctxlz3uxucZi7+e6xITL8sfMjPlR3gJZ2hd9KUBoFC/hZiqsYy1xDMWb2ajzZh18LqWJNFfkVPni0KKEnXy+NhUST/YYK8jZQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=nvidia.com; dmarc=pass action=none header.from=nvidia.com; dkim=pass header.d=nvidia.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=GzTJkwFu9v2KwFg8KqtdTXowFbJNRyJb12S2ODGPNUg=; b=EuvfOFMIxqlrOsGuDmfQf7kGYkqo3mkHBDCQrsQZnDqoulzelGrZsv55xALbBC2E02ycCobmmAUcB3FO58Hqsoy6rTVLcbhOiSgnNjqqtzRKa54vA8QOahpq5jIhyqFhdCZQveL6HZMWIuKN5ujfquG7h82n6f5tUfRaIxnJw1bPDGKOiS5nOMWCkh4YPF+z5RQjreiMBkVQTsKOSBn3FTFd3LWZix2HV+2aA0goruiNtDi7Pw/vVNk+NfxuMf6aF8TczBBUEzbE23vH03ePzdhplXIIodtGwfgk4DZfARVmilEWJC0CiazeGqClxhMEc10dt+edeh4cd99+f6G3cw== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=nvidia.com; Received: from BY5PR12MB4116.namprd12.prod.outlook.com (2603:10b6:a03:210::13) by MWHPR1201MB0141.namprd12.prod.outlook.com (2603:10b6:301:56::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5186.14; Fri, 22 Apr 2022 22:52:05 +0000 Received: from BY5PR12MB4116.namprd12.prod.outlook.com ([fe80::b998:eed3:9088:780c]) by BY5PR12MB4116.namprd12.prod.outlook.com ([fe80::b998:eed3:9088:780c%9]) with mapi id 15.20.5186.015; Fri, 22 Apr 2022 22:52:00 +0000 Message-ID: <8cfc6478-2aa1-b864-88c9-99fe3c09e179@nvidia.com> Date: Fri, 22 Apr 2022 15:52:09 -0700 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 Subject: Re: [PATCH v5 00/11] Intro to Hardware timestamping engine Content-Language: en-US To: Linus Walleij , thierry.reding@gmail.com Cc: jonathanh@nvidia.com, smangipudi@nvidia.com, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org, linux-gpio@vger.kernel.org, bgolaszewski@baylibre.com, warthog618@gmail.com, devicetree@vger.kernel.org, linux-doc@vger.kernel.org, robh+dt@kernel.org References: <20220329054521.14420-1-dipenp@nvidia.com> X-Nvconfidentiality: public From: Dipen Patel In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-ClientProxiedBy: SJ0P220CA0019.NAMP220.PROD.OUTLOOK.COM (2603:10b6:a03:41b::35) To BY5PR12MB4116.namprd12.prod.outlook.com (2603:10b6:a03:210::13) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: d6156c54-1320-4971-bbf9-08da24b2b614 X-MS-TrafficTypeDiagnostic: MWHPR1201MB0141:EE_ X-Microsoft-Antispam-PRVS: 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:BY5PR12MB4116.namprd12.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230001)(4636009)(366004)(38100700002)(6506007)(7416002)(8936002)(186003)(6512007)(2906002)(26005)(66476007)(66556008)(66946007)(4326008)(86362001)(5660300002)(8676002)(31696002)(316002)(31686004)(2616005)(36756003)(83380400001)(966005)(53546011)(6486002)(508600001)(45980500001)(43740500002);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?MUxCY2lWelVvaHJmSGIxSDd1SWd4ME1WSjFoVjNIQ1ViR1lQSUlWOTYyN04w?= =?utf-8?B?K3JBTjczQlVYNnBWbU4wenlRYk9lWHpkS2N5YWVheUFtbE1XMDNiaW1PSnpy?= =?utf-8?B?TDJGOXVpYmNnOHdLTVFoWnlUQnUxUTcwMXdoVFo0aEoyUWV1andmQWRQSVhx?= =?utf-8?B?NDRFbHBkRHFaOFJkdjltdE5NU01QQXJXY05jSEM3U3JYOXNWdVVSaHlXV2dC?= =?utf-8?B?eGNybmt4RktLS2FIQkNTTTRnT0tFemNmdXhwK3JSQUpWWTZoQjV4dmlaTHVM?= =?utf-8?B?akkzLzBQeEF3QjZzWmZMWWVaK1RwdkxVM0NaQ1pXb1puWHhkeDhleFkzTFgx?= =?utf-8?B?Qjlrc1puN01OUEk4UGduVWZaNzJzSDFXTC9vSkt5c1kyNWtHeFJaNjdsZ3RC?= =?utf-8?B?clNJRUhvYUtCbWVSNmFoN29tYkJDcWJ1elp1amhPZklkWS9UaUtiNFhITmxN?= =?utf-8?B?RWt2RFIwVjVCdUpaNTFINlRFd1NxTWdXZk9mQUZPa2oyQy9yZmJTYzJudFJ2?= =?utf-8?B?Q29pZktvRGw0U1hvc2p3a3IrSVA5TkhkUnllK0xlSEpZQVFvb1E4bDJFSS9C?= =?utf-8?B?a2pHVVpSTTJlNXZUaThCaVhNZ3UzVEVidWFGbGRFVHkzZVl5bkZtSUFIYnlC?= =?utf-8?B?TEYwd1o0NXljOVkvMEVsS0RMSzhCRlAzbU5TS2lhL0xNMWZlMmcwai9sRk1m?= =?utf-8?B?dTFVUVA0L3dvWDFVaENwaHZQanpsL2NYMjh0bHRqU1FIUHRqLzJxQWRBMXc4?= =?utf-8?B?UDVTdkVJa2ZjaUtOVEpmVWVqS2tuWHVOdUhLbFR2LzFDVXBLWTBhZmxzN2Vo?= =?utf-8?B?Rzl0N1dQK01GSnlYcjhVZDNWM2lQUmpiVnRoVWF4U0Uxdk5wUzd4dmEzdWpJ?= =?utf-8?B?SDFrUVpCa1VpbkVIWm9TVzRIVWx5a3BZS2Fwb2lINzlncktGVEpBUFJmQzRG?= =?utf-8?B?ekp5NVlaTU8wckNCT2NzNVhYbUYyOVpWVmY4dld4SlZ1QXpjSGlMRXBLTWlM?= =?utf-8?B?c1IrbFZFb2xuN1k2RTh2YW1CQVJPQm5BdVBrTGJTeXpjNXk1dnNyS0ZlejJ6?= =?utf-8?B?ODhVSFk4bG9zbE5TbWl1QjVWelRzb3hxYnRmTG1JQjduOTF2MjJaa3FCWi9H?= =?utf-8?B?dEp4NTJqSEh3VFl6ckNpTkw5b2RDdjRhVklKeHR2clVUek5rNHA5K0JGbUZC?= =?utf-8?B?VE9yRDlqS0FNdWlkYWpldGFSR3NleTRjNXlQNGpBeExrMXRseUtNN2ZwMHNu?= =?utf-8?B?RmpTRmwwV1Jxa0VpakdVQU9EajhmdStqQ1pvc2RYVGVPY3RQRndEMDduZFVh?= =?utf-8?B?TkF3ejFOS0hHYndSRUt3SEdISFVEa2JMa1NqVlZyWGltUmZhWXVvOWFvR1Bh?= =?utf-8?B?YjE4UExCUVN6diszVUJkaFcrSmFKRGhWMk4rRzhTcmk1cGEyVVdXWTRGdnZN?= =?utf-8?B?d1p1QnZ2YXRqV3d1S3lxNWhXU29uc0h3WWtReWt3UjRtT29uOEYvR2tnM0xO?= =?utf-8?B?aUJQN0d1VWJyWnVURG9WbU1BVkpxYjJmVFRYczJqeXIrMVNIS1lJNUlXTXNB?= =?utf-8?B?aUllMUJKVEVCUm5LUW1Ga28yTGhrMklzdzk1bmw2VzVQT0VJTE4yTWpybUVp?= =?utf-8?B?UUhaZG5PcjFpWmkwcDZjM0YwdGJWR3NiWWlWMWZ2SCt2dnpXbWRpb1dQYy9I?= =?utf-8?B?eVROV2pyTHhveDBNQ293Qkc0N1IyenNDeDArUDliWmkvVU1IVVpiNW52Q0pl?= =?utf-8?B?WXYraVlwbVNIY2h6WCtOYk9MSW1hS2J3R3pkR3JWbHRuUHJnZjNEWWVjY1VR?= =?utf-8?B?Q2krb2M0UGxTNGRjLy9WblJhZ2JHeGRMRXR1S2w5cVZUMS9xb1hKemVVNkhZ?= =?utf-8?B?TW9KcUNnZExBSnVJdmJnc0Y3RXhZOVFvajIxVExqQXF0elVKU0FOdXZSN201?= =?utf-8?B?TjBRTU11amNIR3kzajdBSFhGYitmeVdaYytTcVpiaGswc3B0WUlKT0RNL3NH?= =?utf-8?B?WFNyNno4dXZMd3ZlYXdsMDVZazRSb0Q0QUJ1cHMwS3ltV0I5c0pwL21kdklx?= =?utf-8?B?NzJqQW1UWkRhY0hTYVl1UjNqbUZ3TVZDNXduVFI5dVBjR0VqZkJWZHF2T29u?= =?utf-8?B?d3p3L2hWZXhKR3lDc00rMnNTWDhPTTVqbGp1ZzlZRUY3djFTd082WU00SjFC?= =?utf-8?B?VVVmbWx2KzdZc3hkakswUlRZWVlqRFRReG1UcVlZTVgvVHdrNmkxLzZVVWg5?= =?utf-8?B?NnZSMDgya1ZKSit2eXVhbEw4OXdPb2RyVURiNTV6OFdlNHRIK2dxdTZLbjFl?= =?utf-8?B?b2lQb1pCbmJ0cDVwdjJGOTN6OEdidWYxVGJDTG5lejN1OHRXR1QvQT09?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: d6156c54-1320-4971-bbf9-08da24b2b614 X-MS-Exchange-CrossTenant-AuthSource: BY5PR12MB4116.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Apr 2022 22:52:00.6124 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 8Vm50xoicZ35tdHlV71eSX3/HODxDGwyF3rqT/wRlXqu9KAGmnsoqQNOWz0kP/w4mleK4jysk3GQFcMTMIUQnA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR1201MB0141 X-Spam-Status: No, score=-3.7 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,RDNS_NONE,SPF_HELO_NONE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Linus, Thanks for the feedback. I have just sent v6 version reflecting review comments in dt binding. I have also added some init APIs in hte core and moved few codes around. It does not change much from the consumer point of view. On 4/19/22 3:46 PM, Linus Walleij wrote: > On Tue, Mar 29, 2022 at 7:45 AM Dipen Patel wrote: > >> This patch series introduces new subsystem called hardware timestamping >> engine (HTE). It offers functionality such as timestamping through hardware >> means in realtime. The HTE subsystem centralizes HTE provider and consumers >> where providers can register themselves and the consumers can request >> interested entity which could be lines, GPIO, signals or buses. The >> HTE subsystem provides timestamp in nano seconds, having said that the provider >> need to convert the timestamp if its not in that unit. There was upstream >> discussion about the HTE at >> https://lore.kernel.org/lkml/4c46726d-fa35-1a95-4295-bca37c8b6fe3@nvidia.com/ > I like this. > > Can you put it in a public git and make it eligible for Stephen Rothwell to > pull into linux-next and ask him to do so, as we intend to merge this for > v5.19? > > Yours, > Linus Walleij