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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 A8A87EB7EB2 for ; Wed, 4 Mar 2026 09:51:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 25CE010E997; Wed, 4 Mar 2026 09:51:59 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=airkyi.com header.i=@airkyi.com header.b="TC0ouR+Z"; dkim-atps=neutral X-Greylist: delayed 394 seconds by postgrey-1.36 at gabe; Wed, 04 Mar 2026 09:51:57 UTC Received: from smtpbgsg1.qq.com (smtpbgsg1.qq.com [54.254.200.92]) by gabe.freedesktop.org (Postfix) with ESMTPS id B2EE110E5F3 for ; Wed, 4 Mar 2026 09:51:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=airkyi.com; s=altu2504; t=1772617916; bh=5ZqODQ5igOoBvPuYVh0rP+EhPppD6n2yhjb+6z4KnfU=; h=From:To:Subject:Date:Message-Id; b=TC0ouR+Zomz9jimXghniqGuuxs9WVKyBpFQ6rq9o6kbpw3YbkWDKdkUfAbdbF4yzr 8iNF6aHwj67XhpffbYDlsfJNaE2a4EbtwWPhMCm/zM0JPW0mHOrcWnMEtP+Kp0vOnD Nh8Gps81wwG2qzWKywPr71P/qxbbsCXsjJSLmkiE= X-QQ-mid: esmtpsz11t1772617338t1377ad40 X-QQ-Originating-IP: TVSsyvFPJR3CK9AhnwxsVI5EXsHFH6ieIOaCvs3ObxQ= Received: from DESKTOP-8BT1A2O.localdomain ( [58.22.7.114]) by bizesmtp.qq.com (ESMTP) with id ; Wed, 04 Mar 2026 17:42:10 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 414767912473398163 From: Chaoyi Chen To: Heikki Krogerus , Greg Kroah-Hartman , Dmitry Baryshkov , Peter Chen , Luca Ceresoli , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Vinod Koul , Kishon Vijay Abraham I , Heiko Stuebner , Sandy Huang , Andy Yan , Yubing Zhang , Frank Wang , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Amit Sunil Dhamne , Dragan Simic , Johan Jonker , Diederik de Haas , Peter Robinson , Hugh Cole-Baker Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, dri-devel@lists.freedesktop.org, Chaoyi Chen Subject: [PATCH v15 2/9] drm/bridge: aux: Add drm_aux_bridge_register_from_node() Date: Wed, 4 Mar 2026 17:41:45 +0800 Message-Id: <20260304094152.92-3-kernel@airkyi.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20260304094152.92-1-kernel@airkyi.com> References: <20260304094152.92-1-kernel@airkyi.com> X-QQ-SENDSIZE: 520 Feedback-ID: esmtpsz:airkyi.com:qybglogicsvrgz:qybglogicsvrgz6b-0 X-QQ-XMAILINFO: MdC76t0HXz8eAw/LwuGNW8OZPqdEAxE/1fIhWwY4N5JkQm8x8A69aE4v 8RfAfMoyRO+AECMKFp/np/zQ7hmYZ8bmONUOkYTxgo5Oi1nzE9ZjRwMMJ5lCuVqUO8bT6UD l14rH+JbmiNzlJJHpMQsKOj2oDVE+SlOc3TBQGxQUDZBpbaGcBKvWT4TKuEuyNqM+TM/t44 HJZjkgeM97UE8R1aABh1BN8JdhiGF/5Yrl0zdIZDuw2IFTg9hgmJq7INMf7K4E2Hl54kf+W AssT0ELXnjbh6ux436OJDlNZr5j8Y8cYrJ+EnLZO8XYwW2RzqRNISleUmIhIiZVFi9tWF75 D4ItFbdFGLjzY2UB3fW9Jp5emmjkmAxHZR+6rI8/3N2BtBGSG0W4gdD9feAXxP53a8Q02F1 CmXI8YVzp+28MpmEnKT2pw5gA3naqfQopKCeu65sXiyLVKaUsUXBCJffd3qbWi10liQBdH1 HXWIOgETrpIAcVjjI2B0tILKUakEUwjIeTZtcxJKNcQJLIJNcbocyHJ46VCQh3GTGK2uMFc esJsBfXCPNGCQl0diojO+38edQAh82rLjMxAH2AxobWKcWsjcoXKPGC2Mu3pXwNiEaWUVBx c6ht3y5dx3IT8vHGaNvQGwPtyiClMi6EsfYB3qYUErm7fUzBcnVfUIcX2dawt85Z4j0R/sx 9dqHdQmpB4d/ChAVNUxWm8XHyWCiSXN1ZLCceVVq54o9UrirANphYAi3/xNKqtBZvKSq7H2 UcmhKKGGLVxGPslwrB7VXNb7mWt/7yYUE+x2Q6C1dUQnWAx09Le9jOaPPM8qTgP8T2WO454 Mn8JpUb1x/RNoKS5GlilCHGLmqTVCH639JnaaVqcbSBq/OyoubhbskS6YpSuFWQO8mARM3Y hItZfoFADij56R1EzdTy9pWpyticccSY5Vq7aJDxr0gT5WU1lbatwsleE5kOs3TroIyn+Zk O6QuZ0iLbVIej/GpWlw/Ha3iE02dtuGchWnzgQ2a9socfw9XjHw6W7+naOPGW6a13/eQPdL BGDEpA9+HMtSaYVPdg/44/XRBz11Uu1M6JunErqg== X-QQ-XMRINFO: NS+P29fieYNwqS3WCnRCOn9D1NpZuCnCRA== X-QQ-RECHKSPAM: 0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" 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 --- (no changes since v11) --- drivers/gpu/drm/bridge/aux-bridge.c | 24 ++++++++++++++++++++++-- include/drm/bridge/aux-bridge.h | 6 ++++++ 2 files changed, 28 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/bridge/aux-bridge.c b/drivers/gpu/drm/bridge/aux-bridge.c index b3e4cdff61d6..52dff4601c2d 100644 --- a/drivers/gpu/drm/bridge/aux-bridge.c +++ b/drivers/gpu/drm/bridge/aux-bridge.c @@ -35,6 +35,7 @@ static void drm_aux_bridge_unregister_adev(void *_adev) /** * drm_aux_bridge_register - 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) -- 2.51.1