Received: by 2002:a25:824b:0:0:0:0:0 with SMTP id d11csp1804473ybn; Thu, 26 Sep 2019 02:27:29 -0700 (PDT) X-Google-Smtp-Source: APXvYqwW/aSrRgDoJ7ioPmp5t54qYbbmd5XsqUA0p9rI/16SYylRnCPqBXI7mdRjSx2ylulcCnoF X-Received: by 2002:a05:6402:17a2:: with SMTP id j2mr2435290edy.121.1569490048938; Thu, 26 Sep 2019 02:27:28 -0700 (PDT) ARC-Seal: i=2; a=rsa-sha256; t=1569490048; cv=pass; d=google.com; s=arc-20160816; b=rXiYc9f7teRzEVu+5mJoHGMwFTW+mrJhOrpna0wZNwKIRKABz+FOlvLT8eq9W4/ojw SS9iL5QEaIXxoFr6V/2vh/zJd5/aA4FziPwgnl1aSq8GkTitrfDrcvhZps79JtzBIhqQ t3jkVCN1kqrukCKyxpn6XD9ysX0D+hGVXPTJ6mfRom7rU4wlCcT2QAruHqmwIV+FAnae XuvCv0WC3kJVJF+rqobeZI8P6P6fSTxamDf+20NLxQhVuCytPQvywRiRO/q0Se5BgmxN UeuxEz3ec84ri/Vu4CVzxjv27Ju0owF471rglCMda3T0iGSwEm3HIHw6qpGZHiFvWeeX NnVA== ARC-Message-Signature: i=2; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:nodisclaimer :original-authentication-results:mime-version :content-transfer-encoding:content-id :authentication-results-original:user-agent:content-language :accept-language:in-reply-to:references:message-id:date:thread-index :thread-topic:subject:cc:to:from:dkim-signature:dkim-signature; bh=wT9TiMn8fCfYuFAz9/p8gjs8ol/FhfFwFX0TadnKOXA=; b=GCf8WCKbox+u3TyvCnukF8Bvssw02kZt4esHwuHM5cx21/M7agwj9xnZ3HJqY4V/A6 4xYQFI2oGKOX6sMgCau52WvpkehaKmSA42I/maZYhjEnsrvtUxZHERP8GCGz8LcMlofp K+qzMElhoZK7Pr9hrPqk6fsCmYqcjrPQa2oeJKSLUmZfU362dn6coeXaFc9ib09zn9ty Zs0+LASzjoIZqUtuCshybZd/2AEJwQ3Klc60JIdD7e0kOQhFdA0qyn7Uh+COgU+jbeKP WisRoHUen7OXNPN58cT3hKeqcpSQJPtVjsvGjSHSwXSwhEjWqJNZybzGIp97v/E3ak5Q 4Z2g== ARC-Authentication-Results: i=2; mx.google.com; dkim=pass header.i=@armh.onmicrosoft.com header.s=selector2-armh-onmicrosoft-com header.b=j7vKzcLh; dkim=pass header.i=@armh.onmicrosoft.com header.s=selector2-armh-onmicrosoft-com header.b=j7vKzcLh; arc=pass (i=1 spf=pass spfdomain=arm.com dkim=pass dkdomain=arm.com dmarc=pass fromdomain=arm.com); spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id v10si879495edc.224.2019.09.26.02.27.05; Thu, 26 Sep 2019 02:27:28 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@armh.onmicrosoft.com header.s=selector2-armh-onmicrosoft-com header.b=j7vKzcLh; dkim=pass header.i=@armh.onmicrosoft.com header.s=selector2-armh-onmicrosoft-com header.b=j7vKzcLh; arc=pass (i=1 spf=pass spfdomain=arm.com dkim=pass dkdomain=arm.com dmarc=pass fromdomain=arm.com); spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729314AbfIYJsb (ORCPT + 99 others); Wed, 25 Sep 2019 05:48:31 -0400 Received: from mail-eopbgr60069.outbound.protection.outlook.com ([40.107.6.69]:5345 "EHLO EUR04-DB3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729213AbfIYJsa (ORCPT ); Wed, 25 Sep 2019 05:48:30 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=wT9TiMn8fCfYuFAz9/p8gjs8ol/FhfFwFX0TadnKOXA=; b=j7vKzcLhM1P5jDRL/PZD/Ef/GR1bUZmvB9TlNP2eInZCrPiDJEV2q8jjkmLobD52p04rMPpOqBrSmbkUhNU6+JGSzHf0J2T3PF5dgcyyU2PBVXj6fLExf45QABQY+KFG08flrttyH4XBDR+2jddm3VAtMRb1A5rWbu84PjEraOw= Received: from VI1PR08CA0101.eurprd08.prod.outlook.com (2603:10a6:800:d3::27) by AM4PR0802MB2161.eurprd08.prod.outlook.com (2603:10a6:200:5b::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2284.25; Wed, 25 Sep 2019 09:48:23 +0000 Received: from DB5EUR03FT054.eop-EUR03.prod.protection.outlook.com (2a01:111:f400:7e0a::201) by VI1PR08CA0101.outlook.office365.com (2603:10a6:800:d3::27) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2284.20 via Frontend Transport; Wed, 25 Sep 2019 09:48:23 +0000 Authentication-Results: spf=temperror (sender IP is 63.35.35.123) smtp.mailfrom=arm.com; vger.kernel.org; dkim=pass (signature was verified) header.d=armh.onmicrosoft.com;vger.kernel.org; dmarc=none action=none header.from=arm.com; Received-SPF: TempError (protection.outlook.com: error in processing during lookup of arm.com: DNS Timeout) Received: from 64aa7808-outbound-1.mta.getcheckrecipient.com (63.35.35.123) by DB5EUR03FT054.mail.protection.outlook.com (10.152.20.248) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2284.20 via Frontend Transport; Wed, 25 Sep 2019 09:48:21 +0000 Received: ("Tessian outbound 0cf06bf5c60e:v33"); Wed, 25 Sep 2019 09:48:20 +0000 X-CheckRecipientChecked: true X-CR-MTA-CID: e9612447dfafb14a X-CR-MTA-TID: 64aa7808 Received: from 3951e8f2968b.2 (ip-172-16-0-2.eu-west-1.compute.internal [104.47.2.58]) by 64aa7808-outbound-1.mta.getcheckrecipient.com id BFE2200B-9675-402D-A9F6-3130351B7EAF.1; Wed, 25 Sep 2019 09:48:14 +0000 Received: from EUR01-DB5-obe.outbound.protection.outlook.com (mail-db5eur01lp2058.outbound.protection.outlook.com [104.47.2.58]) by 64aa7808-outbound-1.mta.getcheckrecipient.com with ESMTPS id 3951e8f2968b.2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384); Wed, 25 Sep 2019 09:48:14 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=m/Gdz61n16ZY9vFBqtkOEQnpwjj7zztpDuzNHRViFR4ODURrJelmoY7vGMLlyCShknlGMmvuqlp0eS9GASL4EfkOLBTcWfQVGaWVcSi/5NamAOP9ed0k8xjPDVOM9dKaEhP1Nl+3FcHE+QwAw8Ur/QOaW8+9N5DYlWD0WSBnkPmTq21jK57k9VncLphRKBl1/IIGH3pO5tH8qAgXkH7INFwlrcLC8jG8xY28tUpzBv484bTt1qn4QUN5NjAR1TXQ970kyl12UeqGZHa+B0cCSR68zrnag62PV1v6u9iDLk7OOomzGeqitF+P4lnWeMhKdjMKG1KlU74/1GdA6JlD+Q== 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-SenderADCheck; bh=wT9TiMn8fCfYuFAz9/p8gjs8ol/FhfFwFX0TadnKOXA=; b=Pk8TUc9KWsywUVrNr5I5SaH+ZtW31s+FTZ/kMf/coVkAX7vqwyKjFrIgzJfUOWLmXCVnSuJpK6tEVBMd8hnVJ/nAsBkWOS8HFFSfdw90zvsHniCl0ouC/IfEKEUXJ757vyRd5Tw1lb1RNx2XzgBxrT6vmicFE7y1ozvJtxN6GePyz28R9eFvDo3orpb5x7qyVBI7209SdHCe96LzUFCidVowK7cpa8rI8FUg7r7KLi7Of1fzN8NVGz30n+MwtAtmqYzt6r4bDliq9opubabK1jKqXbIiP2VMbdGVbi6SEayrFxpimbzrxeqxzAu4Gxg6F+6jgSZerXEosJbqrnW5XA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=arm.com; dmarc=pass action=none header.from=arm.com; dkim=pass header.d=arm.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=armh.onmicrosoft.com; s=selector2-armh-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=wT9TiMn8fCfYuFAz9/p8gjs8ol/FhfFwFX0TadnKOXA=; b=j7vKzcLhM1P5jDRL/PZD/Ef/GR1bUZmvB9TlNP2eInZCrPiDJEV2q8jjkmLobD52p04rMPpOqBrSmbkUhNU6+JGSzHf0J2T3PF5dgcyyU2PBVXj6fLExf45QABQY+KFG08flrttyH4XBDR+2jddm3VAtMRb1A5rWbu84PjEraOw= Received: from AM6PR08MB3829.eurprd08.prod.outlook.com (20.178.89.14) by AM6PR08MB4231.eurprd08.prod.outlook.com (20.179.18.151) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2284.20; Wed, 25 Sep 2019 09:48:12 +0000 Received: from AM6PR08MB3829.eurprd08.prod.outlook.com ([fe80::3d72:3e6c:cb97:8976]) by AM6PR08MB3829.eurprd08.prod.outlook.com ([fe80::3d72:3e6c:cb97:8976%7]) with mapi id 15.20.2284.023; Wed, 25 Sep 2019 09:48:12 +0000 From: Brian Starkey To: "james qian wang (Arm Technology China)" CC: "Lowry Li (Arm Technology China)" , Liviu Dudau , "maarten.lankhorst@linux.intel.com" , "seanpaul@chromium.org" , "airlied@linux.ie" , Mihail Atanassov , "Julien Yin (Arm Technology China)" , "Jonathan Chai (Arm Technology China)" , Ayan Halder , "dri-devel@lists.freedesktop.org" , "linux-kernel@vger.kernel.org" , nd Subject: Re: [PATCH] drm/komeda: Adds output-color format/depth support Thread-Topic: [PATCH] drm/komeda: Adds output-color format/depth support Thread-Index: AQHVb5fml3iiEtk+MEOqXjNduhm+kKc5MiiAgADp5ICAAhFyAA== Date: Wed, 25 Sep 2019 09:48:11 +0000 Message-ID: <20190925094810.fbeyt7fxvyhaip33@DESKTOP-E1NTVVP.localdomain> References: <20190920094329.17513-1-lowry.li@arm.com> <20190923121604.jqi6ewln27yvdajw@DESKTOP-E1NTVVP.localdomain> <20190924021313.GA15776@jamwan02-TSP300> In-Reply-To: <20190924021313.GA15776@jamwan02-TSP300> Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: NeoMutt/20180716-849-147d51-dirty x-originating-ip: [217.140.106.32] x-clientproxiedby: AM3PR05CA0091.eurprd05.prod.outlook.com (2603:10a6:207:1::17) To AM6PR08MB3829.eurprd08.prod.outlook.com (2603:10a6:20b:85::14) Authentication-Results-Original: spf=none (sender IP is ) smtp.mailfrom=Brian.Starkey@arm.com; x-ms-exchange-messagesentrepresentingtype: 1 x-ms-publictraffictype: Email X-MS-Office365-Filtering-Correlation-Id: e134c436-91da-40c7-9182-08d7419d807d X-MS-Office365-Filtering-HT: Tenant X-Microsoft-Antispam-Untrusted: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(5600167)(711020)(4605104)(1401327)(4618075)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(2017052603328)(7193020);SRVR:AM6PR08MB4231; X-MS-TrafficTypeDiagnostic: AM6PR08MB4231:|AM6PR08MB4231:|AM4PR0802MB2161: x-ms-exchange-transport-forked: True X-Microsoft-Antispam-PRVS: x-checkrecipientrouted: true x-ms-oob-tlc-oobclassifiers: OLM:6430;OLM:6430; x-forefront-prvs: 01713B2841 X-Forefront-Antispam-Report-Untrusted: SFV:NSPM;SFS:(10009020)(4636009)(396003)(346002)(366004)(136003)(39860400002)(376002)(189003)(199004)(102836004)(6436002)(305945005)(486006)(6862004)(44832011)(6246003)(1076003)(7736002)(2906002)(14454004)(86362001)(476003)(229853002)(66446008)(81166006)(81156014)(8676002)(11346002)(446003)(8936002)(6486002)(64756008)(66066001)(58126008)(316002)(66556008)(66476007)(54906003)(9686003)(6512007)(66946007)(256004)(99286004)(4744005)(25786009)(4326008)(478600001)(26005)(186003)(3846002)(71200400001)(71190400001)(6116002)(386003)(6506007)(6636002)(5660300002)(76176011)(52116002);DIR:OUT;SFP:1101;SCL:1;SRVR:AM6PR08MB4231;H:AM6PR08MB3829.eurprd08.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; received-spf: None (protection.outlook.com: arm.com does not designate permitted sender hosts) X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam-Message-Info-Original: sDkKLmIQzTa44AB9zscpluNU4dhVKCTfuhMlcOgpqvaC4WsZHnxYw9whVJreYTq8707VCYArvGCZzYzj4RgJ56caHBj7nevRky8zl18u86mgwx/6XoDkvZVPX+XPmzLdtKqhWM/DEaosL60dH1sd9y9M2hTMLNuMSLu3naszfxaJvXW1cjNMJXALXcpXPfYMH1RSSwsyJD/7ClNuzDWVIfjCWKW4kzbjDOP4EdaeuBYFZ4rZtzZ4Yj9W1UalZ+Rlr0J1FmFYlrioOwHzUSwpBS1Lssr/Y7WTGXEzcNeOD9G6kXBQOqcLMQ+UiOk/FTxXhok2XpPvIDRCi5ioQL25qBh43EoMycJJwCaCzD6r/k5sloNBz3W7DmjLxQcec9zOLLsSK0CtXHEWPYHFocKPTTCABwt4gNpBD+5qR9xVFDM= Content-Type: text/plain; charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR08MB4231 Original-Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=Brian.Starkey@arm.com; X-EOPAttributedMessage: 0 X-MS-Exchange-Transport-CrossTenantHeadersStripped: DB5EUR03FT054.eop-EUR03.prod.protection.outlook.com X-Forefront-Antispam-Report: CIP:63.35.35.123;IPV:CAL;SCL:-1;CTRY:IE;EFV:NLI;SFV:NSPM;SFS:(10009020)(4636009)(346002)(39860400002)(396003)(376002)(136003)(199004)(189003)(81166006)(58126008)(4744005)(2906002)(316002)(50466002)(23726003)(76176011)(99286004)(22756006)(63350400001)(14454004)(47776003)(229853002)(6486002)(25786009)(97756001)(478600001)(3846002)(66066001)(86362001)(476003)(486006)(81156014)(126002)(356004)(46406003)(7736002)(26826003)(5660300002)(8676002)(8746002)(305945005)(6862004)(26005)(6506007)(9686003)(6636002)(6246003)(6512007)(54906003)(186003)(76130400001)(6116002)(4326008)(336012)(70206006)(446003)(8936002)(1076003)(386003)(70586007)(102836004)(11346002);DIR:OUT;SFP:1101;SCL:1;SRVR:AM4PR0802MB2161;H:64aa7808-outbound-1.mta.getcheckrecipient.com;FPR:;SPF:TempError;LANG:en;PTR:ec2-63-35-35-123.eu-west-1.compute.amazonaws.com;A:1;MX:1; X-MS-Office365-Filtering-Correlation-Id-Prvs: 79ba2cde-347d-4f03-34a0-08d7419d7a51 X-Microsoft-Antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600167)(710020)(711020)(4605104)(1401327)(4618075)(2017052603328)(7193020);SRVR:AM4PR0802MB2161; NoDisclaimer: True X-Forefront-PRVS: 01713B2841 X-Microsoft-Antispam-Message-Info: 9dfwUntRTQs7uznmJBIwQI5p6Wun2bPwMSs2kYozaA8PELwnj5DVOMtP1Li/GDb28gg97UleUmulSCwHjAXGqQnWbgw2HKAhVO9Xz+Bhx45Z6X4QmybMLIdc2avig219Y/qSdJnPvmnKSFfxdJXtfg2P6rqc/6MPWt6QkZORVr6RKaIW8s3/iiqvsYbM1nXqBOaEnpeNSNzhxSNgd0DGqPgn/UvpdXLmvYDoEns2TOffLo94JEsSJQ1r8fG2A5pD1lHSm8KeXUVS4x7MwkJiLZpYkvFAeCcDZDOGfse/g2dlPopJcL1fRGEsMMvnPyswcyrXUYDLhJWPSEq+Hhd2apdZDEuVi/dDDHEMY0sKyCsVMQplPF9rOLayCeDH0mNygPOe2wRMlSWmcVoKmn9J/dP3/bARvXotO7YKGN9f63w= X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Sep 2019 09:48:21.7067 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e134c436-91da-40c7-9182-08d7419d807d X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM4PR0802MB2161 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi James, On Tue, Sep 24, 2019 at 02:13:27AM +0000, james qian wang (Arm Technology C= hina) wrote: >=20 > Hi Brian: >=20 > Since one monitor can support mutiple color-formats, this DT property > supply a way for user to select a specific one from this supported > color-formats. Modifying DT is a _really_ user-unfriendly way of specifying preferences. If we want a user to be able to pick a preferred format, then it should probably be via the atomic API as Ville mentioned. Cheers, -Brian