From mboxrd@z Thu Jan 1 00:00:00 1970 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C2A68C44517 for ; Fri, 17 Jul 2026 07:24:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=M8jlQwDYaTK8LrFQDecfYsJExZsgKUL1JzVA8WmGjOA=; b=V7GZsEEwVVafHV A3UbWH6Im2B8NBN1284FiC7978rTf/ijdNBeCctgGndbrO+q2pRNgMUfp8lIMhItkPIu3FxwdqQAE GyKRMMH9X03i2frPlgENB0YtkcFPoAnjMDYiY9DKMleo7EKWpQ9OeqsVAlHjNgnvDIc4oAy47cxh3 ijD7wGeC3iy1rqLgWIt/MEGzwE11Yi/8/KBEhxJPLV4Q9ouR71R+WpItd+FfUjqhwCVlX5eIo0JIe U1z5ryrZ4b/wakJ4LZ70s42QHwCBKQvrJSWLhB59a6Y1c/ewWGqgVrDsFgHZLDVwVXO3ZAbUi9+8/ C3OrdGkmIa2l8LMO5/+Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wkcwB-00000001QRS-231t; Fri, 17 Jul 2026 07:24:47 +0000 Received: from smtpbg151.qq.com ([18.169.211.239]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wkcw0-00000001QC7-17b3; Fri, 17 Jul 2026 07:24:38 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=airkyi.com; s=altu2504; t=1784273022; bh=0RTzPafltaazrRSyLxjVEGPsM2NQMO3dAbcjHX9A5Js=; h=From:To:Subject:Date:Message-Id; b=kBL3vpnSRRbKynA0DahN30ZVoJlB7HUhbJAX+cWGS3e/BwUanmNW9/f9ou0VPK5nM Ol7vbF5jgx4zTDnnrDO+ttdbxc3FDBXJcAIIlddxYUpSjeWmLyir5S1wyiMYhwzn9G BYlYBCXx0RYSea2126s8OxRsQ9cETTxQvOSxp2ZU= X-QQ-mid: esmtpsz21t1784273020t7817df7e X-QQ-Originating-IP: leVM35CjBJyorupngfOKPVO9zy8OXxTLO9HgUYQgbrQ= Received: from DESKTOP-8BT1A2O.localdomain ( [61.154.14.86]) by bizesmtp.qq.com (ESMTP) with id ; Fri, 17 Jul 2026 15:23:36 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 7948544626275222202 From: Chaoyi Chen To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sandy Huang , =?UTF-8?q?Heiko=20St=C3=BCbner?= , Andy Yan , Vinod Koul , Chaoyi Chen , Sebastian Reichel , Nicolas Frattaroli Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-phy@lists.infradead.org Subject: [PATCH v3 2/5] drm/bridge: aux: Add drm_aux_bridge_register_from_node() Date: Fri, 17 Jul 2026 15:23:20 +0800 Message-Id: <20260717072323.96-3-kernel@airkyi.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20260717072323.96-1-kernel@airkyi.com> References: <20260717072323.96-1-kernel@airkyi.com> X-QQ-SENDSIZE: 520 Feedback-ID: esmtpsz:airkyi.com:qybglogicsvrgz:qybglogicsvrgz6b-0 X-QQ-XMAILINFO: NPQ6h5IKr4GpDPYSgRuo+O6HS1zx7mm7cSbQUgenL4oXgeq9mf2jA0k3 d+9lnMzk2a/L/mwZxCIQ4oGNJuog5koOSc/D+dpm9GHTziYhK3jvQC3LOneLFAVGWoNRaPV zet/8GTaQOVABtFLEgrpSvc+0fhQeL/T0Y76Zfch3ETn4nCQmkGklgzm4IRPOx1fTgCqSf+ zLUsTi2CfRRnkTcDbnHUZS4ncHT/eDNN31SeC6Bv7c3vb+0ohzIa3YQHPdgGGNtympDoKHl ECoKr0mQOXvoVmftnt8aWQeQw5QYVLUeRCB/1t5fQsVs8qNOaiGn3rOhmFxE8WUuMq4YjvQ 4PBwem56TMPE22QG8iX7gFym71zuuNrSi44c6s1Yp+imrJJDa4mUDBzaJw5RbAlEq3UfrTR FMwGWOg+ME4xOZrxh0vQPeRVRi6ssX9v/YDt17jGJZgJd+u3sha71guZC4ERHCyE/ZsZCOM LK61GOSRGZ+bbhf1Gn6yJcCdV52r7krRCoI33a/DUYEeXODYZmXUCAXCKD22/HP1/o9B/MS VjaIVT197RHX8NJ1DaR+JK4hh37VSon7O8JQRYP/dXmk8LOvZbtlyONOUxtUqX7wZBocmoq TBFHCtChX6r6iqBhlb/4joTzK8ZqlP7PN3otshlo+pxdYmyuYtdMZIB5UtWVYFaYTHhSJvP POtqQKkfVRY0QVdVgICvq9zWMPk+QqwAljIhsf2OeKTCpZ5a8bn/AQokjKCUVY/DyahV1do mch1OfrRzmSBqsGn8zy19ZHyNetFx0RCtoNCSHcSsw+OljBrQ4DkfXd73MH2H61QMajsAt4 vNcamxfpUkzBUGAK4idcgqI+x7fMLFTzCmzrXYREAXrZC6jSuWtoa4yT6BBvGUOcjvl4U5k hgd6DuFIl8vbSqFMzMZW5U7Qick/wb/r7wk3Rn1ARRz8Pf9v6ixzLb/QyBPAsGB0kf+Ph/B ppOBCKyDw52P7wkzl4APkFmGOSjclDN+MQs2qKquzXTGToi6wa+veKMbjPmD7UshLRgiUBK Jhic0qYaGSgSEqVvPK X-QQ-XMRINFO: NS+P29fieYNwqS3WCnRCOn9D1NpZuCnCRA== X-QQ-RECHKSPAM: 0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260717_002436_937891_980DB6D5 X-CRM114-Status: GOOD ( 12.44 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org From: Chaoyi Chen The drm_aux_bridge_register() uses the device->of_node as the bridge->of_node. This patch adds drm_aux_bridge_register_from_node() to allow specifying the of_node corresponding to the bridge. Signed-off-by: Chaoyi Chen Reviewed-by: Neil Armstrong Reviewed-by: Nicolas Frattaroli Reviewed-by: Sebastian Reichel --- (no changes since v3) Changes in v2: - Fix incorrect function names in the documentation comments. --- drivers/gpu/drm/bridge/aux-bridge.c | 26 +++++++++++++++++++++++--- include/drm/bridge/aux-bridge.h | 6 ++++++ 2 files changed, 29 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/bridge/aux-bridge.c b/drivers/gpu/drm/bridge/aux-bridge.c index 1ed21a8713bf..06a1466f49bd 100644 --- a/drivers/gpu/drm/bridge/aux-bridge.c +++ b/drivers/gpu/drm/bridge/aux-bridge.c @@ -33,8 +33,9 @@ static void drm_aux_bridge_unregister_adev(void *_adev) } /** - * drm_aux_bridge_register - Create a simple bridge device to link the chain + * drm_aux_bridge_register_from_node - Create a simple bridge device to link the chain * @parent: device instance providing this bridge + * @np: device node pointer corresponding to this bridge instance * * Creates a simple DRM bridge that doesn't implement any drm_bridge * operations. Such bridges merely fill a place in the bridge chain linking @@ -42,7 +43,7 @@ static void drm_aux_bridge_unregister_adev(void *_adev) * * Return: zero on success, negative error code on failure */ -int drm_aux_bridge_register(struct device *parent) +int drm_aux_bridge_register_from_node(struct device *parent, struct device_node *np) { struct auxiliary_device *adev; int ret; @@ -62,7 +63,10 @@ int drm_aux_bridge_register(struct device *parent) adev->dev.parent = parent; adev->dev.release = drm_aux_bridge_release; - device_set_of_node_from_dev(&adev->dev, parent); + if (np) + device_set_node(&adev->dev, of_fwnode_handle(np)); + else + device_set_of_node_from_dev(&adev->dev, parent); ret = auxiliary_device_init(adev); if (ret) { @@ -80,6 +84,22 @@ int drm_aux_bridge_register(struct device *parent) return devm_add_action_or_reset(parent, drm_aux_bridge_unregister_adev, adev); } +EXPORT_SYMBOL_GPL(drm_aux_bridge_register_from_node); + +/** + * drm_aux_bridge_register - Create a simple bridge device to link the chain + * @parent: device instance providing this bridge + * + * Creates a simple DRM bridge that doesn't implement any drm_bridge + * operations. Such bridges merely fill a place in the bridge chain linking + * surrounding DRM bridges. + * + * Return: zero on success, negative error code on failure + */ +int drm_aux_bridge_register(struct device *parent) +{ + return drm_aux_bridge_register_from_node(parent, NULL); +} EXPORT_SYMBOL_GPL(drm_aux_bridge_register); struct drm_aux_bridge_data { diff --git a/include/drm/bridge/aux-bridge.h b/include/drm/bridge/aux-bridge.h index c2f5a855512f..7dd1f17a1354 100644 --- a/include/drm/bridge/aux-bridge.h +++ b/include/drm/bridge/aux-bridge.h @@ -13,11 +13,17 @@ struct auxiliary_device; #if IS_ENABLED(CONFIG_DRM_AUX_BRIDGE) int drm_aux_bridge_register(struct device *parent); +int drm_aux_bridge_register_from_node(struct device *parent, struct device_node *np); #else static inline int drm_aux_bridge_register(struct device *parent) { return 0; } + +static inline int drm_aux_bridge_register_from_node(struct device *parent, struct device_node *np) +{ + return 0; +} #endif #if IS_ENABLED(CONFIG_DRM_AUX_HPD_BRIDGE) -- 2.53.0 -- linux-phy mailing list linux-phy@lists.infradead.org https://lists.infradead.org/mailman/listinfo/linux-phy