From patchwork Wed May 16 10:14:45 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Rosin X-Patchwork-Id: 10403553 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 82D80601C8 for ; Wed, 16 May 2018 10:23:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 72DFB2886D for ; Wed, 16 May 2018 10:23:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6726C28872; Wed, 16 May 2018 10:23:52 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 057372886D for ; Wed, 16 May 2018 10:23:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752354AbeEPKXg (ORCPT ); Wed, 16 May 2018 06:23:36 -0400 Received: from mail-he1eur01on0132.outbound.protection.outlook.com ([104.47.0.132]:21089 "EHLO EUR01-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752338AbeEPKPf (ORCPT ); Wed, 16 May 2018 06:15:35 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axentia.se; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=eAqHveLBhg3gKuXdH/2foG9D2pIMvI20FTCGsTirHlo=; b=kFIeP5i9QqeECb9HXRe7zrNPxnuLruxziYKgPI/BtKEPH276tDKGqq4RX5t3p5A7EQxmPxqKbdZkXiLCLQk3v2Fd8RF4k0YGpJDlLHBMJnejAajWe1Cak0vq2zFkoodasMBvXm8A5lGoUXcLnbSQNv2Ce1gKvXkZQvofRhWDgZo= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=peda@axentia.se; Received: from orc.pedanet (85.226.244.23) by AM4PR0202MB2772.eurprd02.prod.outlook.com (2603:10a6:200:8c::22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.776.11; Wed, 16 May 2018 10:15:27 +0000 From: Peter Rosin To: linux-kernel@vger.kernel.org Cc: Peter Rosin , Archit Taneja , Andrzej Hajda , Laurent Pinchart , David Airlie , Martin Donnelly , Martyn Welch , Gustavo Padovan , Maarten Lankhorst , Sean Paul , Inki Dae , Joonyoung Shim , Seung-Woo Kim , Kyungmin Park , Kukjin Kim , Krzysztof Kozlowski , CK Hu , Philipp Zabel , Matthias Brugger , Rob Clark , Sandy Huang , =?UTF-8?q?Heiko=20St=C3=BCbner?= , Benjamin Gaignard , Vincent Abriou , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, Jyri Sarha , Daniel Vetter Subject: [PATCH v3 01/26] drm/bridge: allow optionally specifying an owner .odev device Date: Wed, 16 May 2018 12:14:45 +0200 Message-Id: <20180516101510.13215-2-peda@axentia.se> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180516101510.13215-1-peda@axentia.se> References: <20180516101510.13215-1-peda@axentia.se> MIME-Version: 1.0 X-Originating-IP: [85.226.244.23] X-ClientProxiedBy: HE1PR0102CA0013.eurprd01.prod.exchangelabs.com (2603:10a6:7:14::26) To AM4PR0202MB2772.eurprd02.prod.outlook.com (2603:10a6:200:8c::22) X-MS-PublicTrafficType: Email X-Microsoft-Antispam: UriScan:; BCL:0; PCL:0; RULEID:(7020095)(4652020)(7021125)(5600026)(4534165)(7022125)(4603075)(4627221)(201702281549075)(7048125)(7024125)(7027125)(7028125)(7023125)(2017052603328)(7153060)(7193020); SRVR:AM4PR0202MB2772; X-Microsoft-Exchange-Diagnostics: 1; AM4PR0202MB2772; 3:qJ8FhsPms+1FAxGebO8XyOXot2PhCD8g8jFL88JnPH2X26qg94S4gVhZY0Q1ehx7qmJl81u8LXkrEaTrTMRElhCF0Y3tXLl7R6zpRVgk18ZcSynp7VxJSMmLCjhh7GdrUevXvpFgxRnHMDOb9ln6K6GCbG+WgEIuWZPGuAnTNPYa5bC6xDOTzpHiglFlf1ppbpyfeljQL9J1uuFR6bKfF/2uqJ6fg/MLU5KX6fbSOHSA4fdUgwEObKyCjHRndLzu; 25:GbhjQX4cXpF8+RvjSOmtoquc9CDOiQZMcAwLX02UHhBldARq2eRwo8Dwc2JnSeAPfzI7KzNzlSe6RaasRw18ZteN2HzUbYUQU19CawTdqcQeL+XrLQSmA+vLflRhmFMNGPRQjtcrT6Qg/Nxs88ktFTy05nH13nDHoj92uuuZ3OBQYs+40K+kGv9orO9GLPNhw7bdjPngMEZc2YxxH4p3gPM95E2U5xXppRqqkyNb840fm7dTXeo2JlblvJcxN3HSi0ZDd9dpnM+9IOZndEFBjp9xXHb3iPhtvSho+nPUkKjuenomP/H+GXsXHo+PN9G9cPmofV7cgOhLR6xVEh00hA==; 31:fUUCCUMnJ7OevgBsKzIHsSySbwyyFRpuc3J0vNDdJWdLpmDYl44UuEKSYFqdL+bXT4BkgFp9hgMvLrH8Kp7pvFwe2fZGqyg9BmAW8Fqc/uRs1jONeRQ+IJmmciHN4TpwXtQ1pm/zyQ3wmEjRA3iISYEmk2izzNGkJLQG+CsAlJbdPmr6w+uy9JjNRYWVDASE0V4+gFkAgm0s/v2EwX1MM63YTdDe8QK+Yy7A8kIWDnM= X-MS-TrafficTypeDiagnostic: AM4PR0202MB2772: X-Microsoft-Antispam-PRVS: X-Exchange-Antispam-Report-Test: UriScan:(7411616537696); X-MS-Exchange-SenderADCheck: 1 X-Exchange-Antispam-Report-CFA-Test: BCL:0; PCL:0; RULEID:(6040522)(2401047)(5005006)(8121501046)(3231254)(944501410)(52105095)(93006095)(93001095)(3002001)(10201501046)(149027)(150027)(6041310)(2016111802025)(20161123558120)(20161123562045)(20161123560045)(20161123564045)(6072148)(6043046)(201708071742011); SRVR:AM4PR0202MB2772; BCL:0; PCL:0; RULEID:; SRVR:AM4PR0202MB2772; X-Microsoft-Exchange-Diagnostics: 1; AM4PR0202MB2772; 4:bscQNTTaRZeYmn7gIR0bJik3H+jmcVanXB19IpZXWyqrwUe4rwFwLvdyyjzHFS3EZ/KUoU+MUYxXLZLH3rV3BYEotuoAguAZfRpR1Nl0K1Y4XzTunI5YsroFSTNU5n1Ov/VxbzzdjAmr5QJI3O4cVzfQESstpTY6Gj4mFsPzpszTDpcYBtZC/TPs3ezEl/ohaAboRSLq8FKnmSMUkjeeJXmWJ6cbCbekwTh4tdUjvlSkhbToEjNm64C880xPEysuj8rK6YS2ZjwgSlZ40It930LHOABao7bTuwrSuL+ruMN9XKGMBMTWoUQCZJV799XW X-Forefront-PRVS: 0674DC6DD3 X-Forefront-Antispam-Report: SFV:NSPM; SFS:(10019020)(39380400002)(39830400003)(396003)(346002)(376002)(366004)(189003)(199004)(86362001)(7416002)(25786009)(48376002)(50466002)(68736007)(36756003)(2906002)(105586002)(97736004)(6666003)(6916009)(74482002)(7406005)(2351001)(3846002)(6116002)(1076002)(478600001)(106356001)(316002)(16586007)(2361001)(7736002)(50226002)(53936002)(6512007)(305945005)(51416003)(8936002)(52116002)(8676002)(16526019)(76176011)(446003)(66066001)(5660300001)(39060400002)(54906003)(47776003)(81156014)(476003)(2616005)(956004)(81166006)(186003)(386003)(6506007)(26005)(59450400001)(4326008)(11346002)(486006)(6486002)(142923001)(42262002); DIR:OUT; SFP:1102; SCL:1; SRVR:AM4PR0202MB2772; H:orc.pedanet; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; MX:1; A:1; Received-SPF: None (protection.outlook.com: axentia.se does not designate permitted sender hosts) X-Microsoft-Exchange-Diagnostics: =?us-ascii?Q?1; AM4PR0202MB2772; 23:M9oExva3nM9RGpXAEuEpnV2cvnw0M4vTfDK99LU?= =?us-ascii?Q?R0CnFjEniuN7iyO5hsV8ZBon4pO+1ROkLV8KM+Prb+eKn927ZpwB4qhfZUoq?= =?us-ascii?Q?wJ8kz5nV0MlSS20qIkpGodZN65umMcD0mQwsuCD1l3qHIlkfvXsFs6zpiYmD?= =?us-ascii?Q?Fe9N573oiXp+Vg2CsIBunlbn+kjv9JVkfO8rhzFnXzMlW18rFIs39BlKVThx?= =?us-ascii?Q?jRDce2W3e7raeeNJsGsKmqnGaHwnSiecLj1fh/wcLiHoD2k6Ya0auBXCBZYM?= =?us-ascii?Q?FSdfHH5Nqb8JvvrtHRrwBr+Tsk/mtetC8VMMOLJF33FOlumV4Fw7fZ+g3Zte?= =?us-ascii?Q?Yi9VbO3AELg0EnlS35WSlw5QGWZWUkKB2EDqdtAfrkckxb5ox8Fvwe/9vd2E?= =?us-ascii?Q?mSfwsvcOu7E8gKMWQv9whIfUIUJvS6Hyqebs6OlO+zcmQ41CwOftyMslGCOy?= =?us-ascii?Q?duC9z83EVUu73sfmjuPYqEm7+hwdy9f0eBF+4EhcHgup8hnpz1o8cKFzybBY?= =?us-ascii?Q?2475Xq+rRge9XBwUunfrHSqMfhx6F1cVzU7J/cYstQWZ3bC7dPc24p/HDiP7?= =?us-ascii?Q?TNw9bIFlASS2LobtV/1CUGiFgDWXmgTin7skXDMfMGnnnhgmKDFPEg6gSytj?= =?us-ascii?Q?S9M84Y+rkAqWMhpIL8TugWZG8alW5XR/33LmWwuOEBW6BHV6VUp0DDcKoE7e?= =?us-ascii?Q?/liz8adcFWeuDT2jZlqv473w3rCaadMFGw9eNylL7Wb9zn2UzIJlXlveGY/z?= =?us-ascii?Q?7liZhTeIZAbaeWoofDGhy/hyWY1drLYa539mFUSzSsFPDAkp74giWbj98w/H?= =?us-ascii?Q?q5/4pHa26nbG+ZFGKC0ixY3t3YNMAX6/siDNHb4PPKr1ijWu0v3WCpYYZCdw?= =?us-ascii?Q?sgFwV3SNZ7fcZKPdbqva4trhA+STlQE1yrNYjsKLCdUa8cGuHIo8O+os9nGc?= =?us-ascii?Q?AlA1IiCKSELjqtYSA07kEfrwZu3KmJkM+7wH07zsaB4b19nH9gW4pLq4X11w?= =?us-ascii?Q?btD08qmpP8A9vgJLtEARPdcStDD7LPYGJdz60SXDsEzADuE6QUOLyR5S44Af?= =?us-ascii?Q?KOuuynX0e98Nm3ct65pbYUpv6ytEoT8/bezvuJT+GoduNG9C601+WW6N+5E0?= =?us-ascii?Q?KZ/ad5OdgHn9yz7SSyil8dDd9BMXnDtUycaBs1+DvLtnS4/ne8CQU9s+57GZ?= =?us-ascii?Q?F1TiWF7cTH28P+3jr66XTiuIxktff6+C9X400vVXi+3d9bLQd6RnRSKAu06T?= =?us-ascii?Q?/a24BcDYEI7pHSNZYPIo1odgsjk3EzHcF4hP3yA3nUOsyX1GBxSe5kPZIRCb?= =?us-ascii?Q?n4IEvcwx0uARXTY1vNAf+WO3ouQXCC5Ou83zmNpw4ymo7xwOkgZv1a+J/roN?= =?us-ascii?Q?SutJhEmEPai7fiMrzTZ6JAmsYpx/ShPVwxLTT84zynZPke4O76YdQ+X3E6pc?= =?us-ascii?Q?vQyjjAlPNFA=3D=3D?= X-Microsoft-Antispam-Message-Info: MPvjSu1Ugl4DmyxLjbTsccCht0nbG76khy5UIf9zpG3tBA1Ywe4kgbi4uj/CgEk+O0k+ovHLtdvV8aRnmYz1FDr5t038yG5uVTX00lmGbQLm3PZLVtlVQY1EzyZ4pwmDhlg01oWpsc6n5Bk6yjTeAeDpHdp+PSa4XyjgOaQ5O0PUA0UML9h7Ab00nAMbsu86 X-Microsoft-Exchange-Diagnostics: 1; AM4PR0202MB2772; 6:h9fhHR2973TRbemtqMDgbtOIJN0D6x5qj2eFhiLoBfFqUV6vOflhMR24zrubJqin5UfXQDlwm75mSbKCxqntF5R4gQsZQWrqMocfDWutO2VYvXcepYqp376AYQ7IUBFSr0ETM5OaYcGy1m+8wJYGQralRT8oje2jUgvVKUJx4FyoQZQEFD9+xRfN8E0eQPSXXZedCHWuTnCayVtXahh13vQ3Ng37+Y0p4PI/BdXwvs0HVuRdvhvFyS0/2CgMbIoW2Ao3aeNVVN0WKBArZbCB+srM0iDbYi+txEDFmrMKoLjf+C9QEZwrmDvcEez2pnERlpsNanLLyVGMK5Q9VD5rkUA9lhliJSzIMNWhuzWSJYg8lHOUPGJgK0PTspo/QqOETuXekFhAyto83ox8E3+RhHLen3QrHcBh4YIkydIMyzKzQOvNnPBZg7D9bfKNugCP9BI3ip3tpqeHRAAPFMGMig==; 5:4WX4lwPysnQTkL8LYCZ8JsLgYkJTPGfTn1aOLRM5iIAAYrNR/kF47xMpm1ise41VgxKQlUpJJ7qthDCuT3ybaJqEk1bn46ebZSMwbOhNVeJbWtloen0zQLUEYdtq/vKHU1pVdio37XNcEcddoZrhOooF4ZN5FwzSOnCEPRS9q4U=; 24:l2X7sKuVWLT5UqR2Rb1XAJJEDYgrvoInYggnrHtLfVF9iYnSA2U70sMJJ/txQGWbxCVM1N1K7HOJfH/Q3nhOdX6dDYtyUqP1Gzb7WqtI6r4= SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-Microsoft-Exchange-Diagnostics: 1; AM4PR0202MB2772; 7:wXuFDBw7DDp7chdOaDrgZhxGndPVHswBABIA4/jRCdbO12tSp7SZE1F9FGZdC33Va0VPdrJ4BEpwUB+WJP448g46ZqzQDspLLZ3ij0Sgj37kwpwGE3MyRkb7aDW9aXoVY3P5sVoaeyBnHZgt6OyVgf0ed9gfqu36tM33DVjpKjVi3hMbR/ZevzGfIeiUJM/7SXS/Y5iak4nsil24rtSKRuZEIAeLfvZdCyKGCK/WJSEGHziWrMztkqXMPbnkVKJh X-MS-Office365-Filtering-Correlation-Id: 026c54d3-cb4d-4bce-a6ed-08d5bb15f39c X-OriginatorOrg: axentia.se X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 May 2018 10:15:27.7923 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 026c54d3-cb4d-4bce-a6ed-08d5bb15f39c X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 4ee68585-03e1-4785-942a-df9c1871a234 X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM4PR0202MB2772 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Bridge drivers can now (temporarily, in a transition phase) select if they want to provide a full owner device or keep just providing an of_node. By providing a full owner device, the bridge drivers no longer need to provide an of_node since that node is available via the owner device. When all bridge drivers provide an owner device, that will become mandatory and the .of_node member will be removed. There is an interaction with the rockchip lvds driver, since that driver peeks into somewhat private parts of the bridge struct in order to find out things about the remote bridge. When there are now two ways to get to the remote bridge, the rockchip lvds driver has to adapt. That said, the correct thing to do for the rockchip lvds driver is to use some other way than DT to find things out about the remote bridge, but that is orthogonal to this patch. Reviewed-by: Andrzej Hajda Acked-by: Daniel Vetter Signed-off-by: Peter Rosin Acked-by: Heiko Stuebner --- drivers/gpu/drm/drm_bridge.c | 3 ++- drivers/gpu/drm/rockchip/rockchip_lvds.c | 4 +++- include/drm/drm_bridge.h | 2 ++ 3 files changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_bridge.c b/drivers/gpu/drm/drm_bridge.c index 1638bfe9627c..3872f5379998 100644 --- a/drivers/gpu/drm/drm_bridge.c +++ b/drivers/gpu/drm/drm_bridge.c @@ -365,7 +365,8 @@ struct drm_bridge *of_drm_find_bridge(struct device_node *np) mutex_lock(&bridge_lock); list_for_each_entry(bridge, &bridge_list, list) { - if (bridge->of_node == np) { + if ((bridge->odev && bridge->odev->of_node == np) || + bridge->of_node == np) { mutex_unlock(&bridge_lock); return bridge; } diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.c b/drivers/gpu/drm/rockchip/rockchip_lvds.c index 4bd94b167d2c..557e0079c98d 100644 --- a/drivers/gpu/drm/rockchip/rockchip_lvds.c +++ b/drivers/gpu/drm/rockchip/rockchip_lvds.c @@ -377,8 +377,10 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master, } if (lvds->panel) remote = lvds->panel->dev->of_node; - else + else if (lvds->bridge->of_node) remote = lvds->bridge->of_node; + else + remote = lvds->bridge->odev->of_node; if (of_property_read_string(dev->of_node, "rockchip,output", &name)) /* default set it as output rgb */ lvds->output = DISPLAY_OUTPUT_RGB; diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h index 3270fec46979..7c17977c3537 100644 --- a/include/drm/drm_bridge.h +++ b/include/drm/drm_bridge.h @@ -254,6 +254,7 @@ struct drm_bridge_timings { /** * struct drm_bridge - central DRM bridge control structure + * @odev: device that owns the bridge * @dev: DRM device this bridge belongs to * @encoder: encoder to which this bridge is connected * @next: the next bridge in the encoder chain @@ -265,6 +266,7 @@ struct drm_bridge_timings { * @driver_private: pointer to the bridge driver's internal context */ struct drm_bridge { + struct device *odev; struct drm_device *dev; struct drm_encoder *encoder; struct drm_bridge *next;