From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpbgjp3.qq.com (smtpbgjp3.qq.com [54.92.39.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B5FCF39C623; Wed, 4 Mar 2026 09:43:11 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=54.92.39.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772617395; cv=none; b=ljB8o4P5ZHIqiqIdICLcZwoMOT1UaWGln7bkC7CGnVlbuRhNBFHPPWBpqRzpOHET+Qi5YNjJmfexOPMKpSw0UIHvt9ARrCdxSe6cqDeSlAG4yQPcgGGCZzFNtDIVf6O3L6SPt1u8aOpJaNbFHu0fTaf2hxwjCudiI41xCKbqu0w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772617395; c=relaxed/simple; bh=vPsyzj6/MSOc6sqNmDWLDGrmzZ/tzKyolgK8GVFnH9Q=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=BnsrJL64A7rmGzRhUmEQEpsxS2jsBTuSnVpuvmzv5h8syDrxKCaZM63Nu9WBhlnhyeE+antUjHQ2uWRyVNErG8uWCgFJO02MqqOsW5CCANR/KHt3ljutAnG+dQoWQhfkWsvvYYhNqI5gU9aRIqQ5BfPaxyVucEG7CNfip1zjRgA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=airkyi.com; spf=pass smtp.mailfrom=airkyi.com; dkim=pass (1024-bit key) header.d=airkyi.com header.i=@airkyi.com header.b=oy/+RJPq; arc=none smtp.client-ip=54.92.39.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=airkyi.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=airkyi.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=airkyi.com header.i=@airkyi.com header.b="oy/+RJPq" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=airkyi.com; s=altu2504; t=1772617345; bh=5ZqODQ5igOoBvPuYVh0rP+EhPppD6n2yhjb+6z4KnfU=; h=From:To:Subject:Date:Message-Id; b=oy/+RJPqPBjFh/ftev4sy+0HF1Bo1q81bH/areMsEaeJPm4Fstylzjl51nWFi9cx6 xDIHYfdli8CLUenOUm+qsseDIpQDd216tyLOaFCAiY4Oc2eXKuVne/j5i+oR137Bv8 uwW4nXYtOpR2D/5jWV4I1RFD9ttB8zpYe2Plmrbo= 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: M61CYoAI3jcSUiUMJ06JljHbpS6t4xQJSoHZd2lJDb7h1r2vwUnxoYny Au/56TWpRiv6jiRBOT6j1HBL1qLJl9C6jCHZiPxTCOqfASetTeaK4SbEXla5X5rqu6jXdgj ey6ll94bx8lbuDvQoo90ILhh7lI1SttiHEN+9tRyfrqMtppAds0/cAx9ZN/CiBiw80GjFp4 FsuceovdT+Q+wL5EtBYLgg68flhtLKP2vCRh7KwMpieYHT5AqJLzd71veFBIa8J6ZUsTRgd 4cj6Z6mPBeyoIHSdnu1DjMA3OcbOmGqwn1lJvjr8hLnK+FLdzksYu7GTRYih+rDrojRsTJC JGW7qnziI+X+qQMoBKRQGM3/bb8vGw6i6lkSHm8S78uaFkWRiAvJTowxnbUzZ64B930aDln HlA5HPxiwNRUmHOzKzfUiE/Y7HfWBmIpVLRx6rcU/mtX9IFneKdvD5OC87NDmhbzzVUeBtJ +gwWoXEgso3GDpQ3A4IS18qf4yspiN2RJy+woBK7XYFUKSnXccyKyyIvmS9O9NWhfFXvMIE YUAfgkA64DrRJFkSOaZBEPFVfxpn3rfMjDlsOVBYTAziUwmSoaQ38Tk2H8MGGFG2nfhWSMp 6HqwUa7rGCW/0Bf7KjtRmOdZSNhpMKS8tRlOl1FRmwqcwtS09fC4DTAa39FnFcJxRRP4/2m 1EkKJk3sfiU6ReiGi9SQyHzHvbWehY6n7acwjtGE6Rrk6zfaqkHyYgEsYlo0hZ2BR/fb0Kh 6bT1iPZPk+sY4dtxPyrzl/LgMpSJedt9OSzSty8GqlFzjpQgiqe+aoD5aJlia39TTq6G0n4 0UNpsEK4cXAjGdyzyD5nCju8JklUmdbM49tJfhz/o3uwUAydBJ6MU8xj61pdg6qA/tvdiC0 KY/rcBf0ZyrGeyskNqqbvlgffIQvRS5w2LNM51M1qyFSi2dfJc5vIeHdnlm44rug0mcrKAs KGBtjQZPWHkSa7uN7memTYjA2SBIQ3185DMmsc1tAXQcqCoGcYLfDDVHWa0BN/2kYCFYQU0 mY84qEcl67EDQjqZCVmc2WvJPEuiTtwP/kJ8T16Q== X-QQ-XMRINFO: MPJ6Tf5t3I/ylTmHUqvI8+Wpn+Gzalws3A== X-QQ-RECHKSPAM: 0 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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