{"id":2227119,"url":"http://patchwork.ozlabs.org/api/patches/2227119/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-tegra/patch/20260423-drm-bridge-connector-attach_encoder-v2-1-2ae6ca69b390@bootlin.com/","project":{"id":21,"url":"http://patchwork.ozlabs.org/api/projects/21/?format=json","name":"Linux Tegra Development","link_name":"linux-tegra","list_id":"linux-tegra.vger.kernel.org","list_email":"linux-tegra@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260423-drm-bridge-connector-attach_encoder-v2-1-2ae6ca69b390@bootlin.com>","list_archive_url":null,"date":"2026-04-23T09:16:55","name":"[v2,01/41] drm/display: bridge-connector: attach the encoder to the created connector","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"553ca18ed1982db00c627a8c533338a57d8c9450","submitter":{"id":83908,"url":"http://patchwork.ozlabs.org/api/people/83908/?format=json","name":"Luca Ceresoli","email":"luca.ceresoli@bootlin.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-tegra/patch/20260423-drm-bridge-connector-attach_encoder-v2-1-2ae6ca69b390@bootlin.com/mbox/","series":[{"id":501167,"url":"http://patchwork.ozlabs.org/api/series/501167/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-tegra/list/?series=501167","date":"2026-04-23T09:16:54","name":"drm/display: bridge-connector: attach encoder to the connector","version":2,"mbox":"http://patchwork.ozlabs.org/series/501167/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2227119/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2227119/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-tegra@vger.kernel.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=bootlin.com header.i=@bootlin.com header.a=rsa-sha256\n header.s=dkim header.b=DYfzuQ+8;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; helo=tor.lore.kernel.org;\n envelope-from=linux-tegra+bounces-13869-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com\n header.b=\"DYfzuQ+8\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=185.246.85.4","smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=bootlin.com","smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=bootlin.com"],"Received":["from tor.lore.kernel.org (tor.lore.kernel.org\n [IPv6:2600:3c04:e001:36c::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4g1VsS1Ykdz1yD5\n\tfor ; Thu, 23 Apr 2026 19:19:24 +1000 (AEST)","from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby tor.lore.kernel.org (Postfix) with ESMTP id 0045230764DC\n\tfor ; Thu, 23 Apr 2026 09:18:13 +0000 (UTC)","from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 912063BC69B;\n\tThu, 23 Apr 2026 09:18:13 +0000 (UTC)","from smtpout-03.galae.net (smtpout-03.galae.net [185.246.85.4])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id DB6BB3E3C6C;\n\tThu, 23 Apr 2026 09:18:06 +0000 (UTC)","from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233])\n\tby smtpout-03.galae.net (Postfix) with ESMTPS id 972294E42AC1;\n\tThu, 23 Apr 2026 09:18:04 +0000 (UTC)","from mail.galae.net (mail.galae.net [212.83.136.155])\n\tby smtpout-01.galae.net (Postfix) with ESMTPS id 68540604EB;\n\tThu, 23 Apr 2026 09:18:04 +0000 (UTC)","from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon)\n with ESMTPSA id 289FB10460BE8;\n\tThu, 23 Apr 2026 11:17:43 +0200 (CEST)"],"ARC-Seal":"i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1776935892; cv=none;\n b=gHvaB/QJ2Apd0RSchD0n05wE3gezeFljjYCvFD1leTXmHMXwAKru+YNTeOY8+JupYwzclvBFZDob7bxpafNLyH3Xt2e/yLUylncSozS8woZpXFXOFKvLpWOpTup9o17+5wZ/Inm01RpSMoIMRVbn1SO3ACQJTH36qUcBma9+eT8=","ARC-Message-Signature":"i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1776935892; c=relaxed/simple;\n\tbh=vrFv6hv5Ag+ymbX3OhiKDRhmyJbBbhMJ7RJ+t+E5oe4=;\n\th=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References:\n\t In-Reply-To:To:Cc;\n b=sDSfRiVE9wyC6N72aVIGf26BTMKWmKMnufUzGzp659wn/YdE7KG5MfaJjhq4nLsVejNvpKV/kMZkf+zcF8xBVifUpgJQhBJS4HLFZ9HBFCpvppwJuHADPOjuf26E9lKCMfwINSY5QGvmb6xNUK9JrLvep+DSgZhSSZxjlqfZubM=","ARC-Authentication-Results":"i=1; smtp.subspace.kernel.org;\n dmarc=pass (p=reject dis=none) header.from=bootlin.com;\n spf=pass smtp.mailfrom=bootlin.com;\n dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com\n header.b=DYfzuQ+8; arc=none smtp.client-ip=185.246.85.4","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim;\n\tt=1776935879; h=from:subject:date:message-id:to:cc:mime-version:content-type:\n\t content-transfer-encoding:in-reply-to:references;\n\tbh=JTQu1VFc55tMJ5Kf8cEraJfGlUo7z70tzytohmVl8ac=;\n\tb=DYfzuQ+8Yo0Q07abngAXIn2uouP+c+o4dfzY/TJfSFmnYY71GE398rY9/HvUa4pQHKz1LQ\n\taCEUi9nG2hE7aJe6kvoKzUgToLR34i+feCACCzzwgEhbRBoY2teGGABcGN8E6RYfsWiadj\n\tj7Dn9i1zn14i1K1OuBiG2sJ979E7xhK8CVp0jYhCPEU1nX4AgA3jWYx8oFeWF+Gj9rqsBA\n\tjLs+7duE2svwsr5DhQNeNr+P8KxzVOMjwAfrPgrKrtM13dhOHx0QccpTUbjz3T+P548sQi\n\t6AOh4HkMTRHn++a5iCEDgqkrA6r8DHi82zSchQH1f1MnZl6aSdJzJaYEEqQ5xA==","From":"Luca Ceresoli ","Date":"Thu, 23 Apr 2026 11:16:55 +0200","Subject":"[PATCH v2 01/41] drm/display: bridge-connector: attach the encoder\n to the created connector","Precedence":"bulk","X-Mailing-List":"linux-tegra@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","Message-Id":"\n <20260423-drm-bridge-connector-attach_encoder-v2-1-2ae6ca69b390@bootlin.com>","References":"\n <20260423-drm-bridge-connector-attach_encoder-v2-0-2ae6ca69b390@bootlin.com>","In-Reply-To":"\n <20260423-drm-bridge-connector-attach_encoder-v2-0-2ae6ca69b390@bootlin.com>","To":"Dmitry Baryshkov ,\n Andrzej Hajda ,\n Neil Armstrong , Robert Foss ,\n Laurent Pinchart ,\n Jonas Karlman , Jernej Skrabec ,\n Maarten Lankhorst ,\n Maxime Ripard , Thomas Zimmermann ,\n David Airlie , Simona Vetter ,\n Sasha Finkelstein , Janne Grunau ,\n Liu Ying , Douglas Anderson ,\n Laurentiu Palcu ,\n Lucas Stach , Frank Li ,\n Sascha Hauer ,\n Pengutronix Kernel Team ,\n Fabio Estevam , Philipp Zabel ,\n Paul Cercueil ,\n Anitha Chrisanthus ,\n Chun-Kuang Hu ,\n Matthias Brugger ,\n AngeloGioacchino Del Regno ,\n Kevin Hilman , Jerome Brunet ,\n Martin Blumenstingl ,\n Rob Clark ,\n Dmitry Baryshkov ,\n Abhinav Kumar ,\n Jessica Zhang , Sean Paul ,\n Marijn Suijten ,\n Tomi Valkeinen ,\n Sandy Huang ,\n =?utf-8?q?Heiko_St=C3=BCbner?= ,\n Andy Yan ,\n Thierry Reding ,\n Mikko Perttunen ,\n Jonathan Hunter ,\n Icenowy Zheng , Jingoo Han ,\n Inki Dae , Seung-Woo Kim ,\n Kyungmin Park ,\n Krzysztof Kozlowski ,\n Alim Akhtar ,\n Laurent Pinchart ,\n Tomi Valkeinen ,\n Kieran Bingham ,\n Geert Uytterhoeven ,\n Magnus Damm , Biju Das ,\n Marek Vasut , Stefan Agner ,\n Jyri Sarha , Michal Simek ","Cc":"Hui Pu , Ian Ray ,\n Thomas Petazzoni ,\n dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,\n Luca Ceresoli , asahi@lists.linux.dev,\n imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org,\n linux-mips@vger.kernel.org, linux-mediatek@lists.infradead.org,\n linux-amlogic@lists.infradead.org, linux-arm-msm@vger.kernel.org,\n freedreno@lists.freedesktop.org, linux-rockchip@lists.infradead.org,\n linux-tegra@vger.kernel.org, linux-samsung-soc@vger.kernel.org,\n linux-renesas-soc@vger.kernel.org","X-Mailer":"b4 0.15.2","X-Last-TLS-Session-Version":"TLSv1.3"},"content":"Currently all users of the bridge-connector must call\ndrm_connector_attach_encoder() immediately after a successful\ndrm_bridge_connector_init().\n\nThis is an unnecessary burden for users. Move the call to the end of\ndrm_bridge_connector_init() so all callers can be simplified.\n\nUpdate documentation accordingly, rewording a bit the whole paragraph which\nwould otherwise become poorly readable due to the growing list of actions.\n\nReviewed-by: Dmitry Baryshkov \nSigned-off-by: Luca Ceresoli \n\n---\n\nChanges in v2:\n- mention new behaviour in kdoc as agreen with Dmitry\n---\n drivers/gpu/drm/display/drm_bridge_connector.c | 11 +++++++++--\n 1 file changed, 9 insertions(+), 2 deletions(-)","diff":"diff --git a/drivers/gpu/drm/display/drm_bridge_connector.c b/drivers/gpu/drm/display/drm_bridge_connector.c\nindex 39cc18f78eda..d85ceb80c137 100644\n--- a/drivers/gpu/drm/display/drm_bridge_connector.c\n+++ b/drivers/gpu/drm/display/drm_bridge_connector.c\n@@ -773,8 +773,11 @@ static void drm_bridge_connector_put_bridges(struct drm_device *dev, void *data)\n * @drm: the DRM device\n * @encoder: the encoder where the bridge chain starts\n *\n- * Allocate, initialise and register a &drm_bridge_connector with the @drm\n- * device. The connector is associated with a chain of bridges that starts at\n+ * Create a new &drm_bridge_connector for the @drm device. The connector is\n+ * allocated, initialised, registered with the @drm device and attached to\n+ * @encoder.\n+ *\n+ * The connector is associated with a chain of bridges that starts at\n * the @encoder. All bridges in the chain shall report bridge operation flags\n * (&drm_bridge->ops) and bridge output type (&drm_bridge->type), and none of\n * them may create a DRM connector directly.\n@@ -1055,6 +1058,10 @@ struct drm_connector *drm_bridge_connector_init(struct drm_device *drm,\n \t IS_ENABLED(CONFIG_DRM_DISPLAY_HDCP_HELPER))\n \t\tdrm_connector_attach_content_protection_property(connector, true);\n \n+\tret = drm_connector_attach_encoder(connector, encoder);\n+\tif (ret)\n+\t\treturn ERR_PTR(ret);\n+\n \treturn connector;\n }\n EXPORT_SYMBOL_GPL(drm_bridge_connector_init);\n","prefixes":["v2","01/41"]}