From nobody Tue Dec 16 02:39:13 2025 Received: from smtpbgau1.qq.com (smtpbgau1.qq.com [54.206.16.166]) (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 8A6C3242D98; Mon, 8 Dec 2025 01:55:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=54.206.16.166 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765158946; cv=none; b=O0nyMdHm1yADvXllCW9ZiMQrC1Btt4hJMwzgL06VQwcXoTvMikLfhtOcjNF5K+LWvfXJMTeEGaIfqxDBj/ktsnJFBTz4TrOVMe0YabmQlzzcTFQWe64dxmUTdckquGmCVU7FuKIP6N8tnmpyUUkzu3/uoPSaGCnJ9RbeNffC04g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1765158946; c=relaxed/simple; bh=er8jqugAOtZH14+xsvNPaWFL5/vXyjQ3XZItkrwqyNA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=rD12Sz+MJKDU86m3IVoURFgjH9WQ46zvuwI7mWFO94cPRbG1U8YIyEtpl4gLCqRkgZnZCZKxZQxVDJCXvimapdRxUlwy/23wjVr37X7kVPrkM0/jXXCBeZfJirEMzDjapap4TluipDSyr4aKuqgWv6ttlKnFd373IKrubD8K7CU= 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=lyRPzx08; arc=none smtp.client-ip=54.206.16.166 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="lyRPzx08" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=airkyi.com; s=altu2504; t=1765158930; bh=RCoApW58uwU2PDY/YzjUBVlUXFHY8idxqTE/wHC6S8g=; h=From:To:Subject:Date:Message-Id; b=lyRPzx08NxIJiY9L6U9EipOSloT79349AJAORhsq9lppMlqtzGAlwRvEnJh0+h6bY Zf9yQQrFybvkSQ2+uC0ko1yF/l1DoTcABWqFPjWWgstcds052UNrsrQp+wlSTAuYOp ZlTC3YtAu9CV2BUfk5azFNOfZI/Nblq3WXmoESy4= X-QQ-mid: esmtpsz19t1765158928te5f51995 X-QQ-Originating-IP: kcxCGZPPcU96TfidxkPp4h6SAeMB0/ABmBp+GsBCCJo= Received: from DESKTOP-8BT1A2O.localdomain ( [58.22.7.114]) by bizesmtp.qq.com (ESMTP) with id ; Mon, 08 Dec 2025 09:55:25 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 12888051069085088122 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 , Chaoyi Chen , Dragan Simic , Johan Jonker , Diederik de Haas , Peter Robinson 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 Subject: [PATCH v13 04/11] drm/bridge: aux: Add drm_aux_bridge_register_from_node() Date: Mon, 8 Dec 2025 09:54:53 +0800 Message-Id: <20251208015500.94-5-kernel@airkyi.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20251208015500.94-1-kernel@airkyi.com> References: <20251208015500.94-1-kernel@airkyi.com> X-QQ-SENDSIZE: 520 Feedback-ID: esmtpsz:airkyi.com:qybglogicsvrgz:qybglogicsvrgz6b-0 X-QQ-XMAILINFO: NDRJhlKLIrRL+NIQ68Wi+BYoMjn8X7rPAg5zBmu4cK7UZrkbLdgeyAe6 1cSFFlke0TsnJWHkIXk6iVOWxR5ZB2lv0Llhq7XD1xml2LABkqP0MFIjvh+wCxo009ubdTK gkCRPDfnjz2VKrlNje/lj/TSvNi+fY0kJ/YnPD06XmvWMsWF6bUNharJ59ZS14LH6U5eRbj zjf4AsrhyX6A02UQsHbU1OJiaGIHm0IBdLq0KAdM2/aTJhlXLGgbZgGAZpMOGH3qjIUJQGX 1G0evQ+pqJBfhbajAlzftDNPIaywXADa9KLw3r8sW1ytRCd91BHzvdVTlcctxv4uN/HAypO sq/93fQNqlVQEXOYrZjo8D0EJUZ7y6rgZwQzqoAQ5IAervr7KIywCj+hgII9nYOnO0AVcJI nuXuZqKf80GOis8G2qmwxHLS3KYh0myRL23M4+HYCKSBxxzS+acj99r3gQCFYz2FBHimp8R nLdXbk54O1qcyoUvYXTTWqbMm7Eod3m98pnbXLcuc8kTBQc+zV2uBef8PgXRoFCV/CEsCIs kNGKJEi6ApdmKwCnA+0GyqllLsWtP4+8nQoHHQTq/JEHGp1fXdfoWRX1DOb83Eb+ooKlp0/ z/N7baN2NUbT+zkisKxEkuTV+IsG5OQWoB7gfqxrLza6bNeY5AYdF8C2KBWHMcrIkNU+e8s sB2Gx7WwgvZrACUJ/U0slQdB/SEAHn1IDoe0kyURM1guJmNaaDXf/3n7WRnxcXAr67t5Vmy oR1cQ2xDCtkynJaXIVsVX3qUoKoIPU+QY/93s1SG5urixWtAMoaFRY7IigmI4G1hCQlU1B0 Dwf3VZEDLZdZF67mSQvR7H42f5pF6hp45WaqrKcjA6hcOyx/7rEbDfocg3PwPHuqk3TX5g2 gcBE/ZPLinP1d/lHGivnekGouRMFGIhKWtSoZwwtSmg60GCqYMF0W71FgR0SAfoZfvDhxuy w4ZQTx8RAY7A6TSuH6TjOiOXpdIlPtCJLrvRGre0ORrIMydnveK28tEiXKu+pDe9stOWV6d EdkCZvNyy174R5ZqYYAvM4JFWm/YA= X-QQ-XMRINFO: Nq+8W0+stu50PRdwbJxPCL0= X-QQ-RECHKSPAM: 0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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/a= ux-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 cha= in * @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 =3D parent; adev->dev.release =3D drm_aux_bridge_release; =20 - 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); =20 ret =3D auxiliary_device_init(adev); if (ret) { @@ -80,6 +84,22 @@ int drm_aux_bridge_register(struct device *parent) =20 return devm_add_action_or_reset(parent, drm_aux_bridge_unregister_adev, a= dev); } +EXPORT_SYMBOL_GPL(drm_aux_bridge_register_from_node); + +/** + * drm_aux_bridge_register - Create a simple bridge device to link the cha= in + * @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); =20 struct drm_aux_bridge_data { diff --git a/include/drm/bridge/aux-bridge.h b/include/drm/bridge/aux-bridg= e.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; =20 #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 =20 #if IS_ENABLED(CONFIG_DRM_AUX_HPD_BRIDGE) --=20 2.51.1