From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpbg150.qq.com (smtpbg150.qq.com [18.132.163.193]) (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 EB3931EF092; Fri, 28 Nov 2025 02:04:47 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=18.132.163.193 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764295491; cv=none; b=OxOr172B2JE4zTkc8PH8SM/P/zlI2OQTLVPhdMqYoYYco6KCZAc1p/Wd2pDG1snLXxVtk8yDFt/6kTgazTR73Xb9k6MV8A0xmBfQcl9MNK+MpvjBGuzVylC3WxkGcUEDhTgOSy4YL71wj2s27Y5jentq0iiEQoOZqhm8Yx72fuk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764295491; c=relaxed/simple; bh=er8jqugAOtZH14+xsvNPaWFL5/vXyjQ3XZItkrwqyNA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=Ss7cHH6/pBNqvWEg/xQxfbHX6xo+5EcOBBptApfEoNyVpN/KtVq+9ywN4VIqkyuW6jDMDnl0uU+UEo+/x8kZOREJSxsnIN1hyMu9ZkkDEMJLiY8IaCrZjG3DYTQn5shFgya856r8EF+6eWKN5/wXdV0wDg4nTJxjtOtygh5IomI= 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=IiAcSoL+; arc=none smtp.client-ip=18.132.163.193 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="IiAcSoL+" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=airkyi.com; s=altu2504; t=1764295476; bh=RCoApW58uwU2PDY/YzjUBVlUXFHY8idxqTE/wHC6S8g=; h=From:To:Subject:Date:Message-Id; b=IiAcSoL+ECKV6G43frznHLzzPn75lrL5f+CSmPRun6ruQ5bbeCy36dgfqWJGJWS9J RL2Fr/MnGpuSYTct7pYh+OvvI2r5pALq2ptcbA7TtS411KFC++ZoaH6m5Qad8OFfuI a6Py5Fcxw0SMMx8/oJ+38ehiw7spKcuASEYacfCw= X-QQ-mid: esmtpsz21t1764295474t610ed2eb X-QQ-Originating-IP: a0Nr6+ZqhJCmPQSe6ZFRf7bn96AF2PAOgvJ0/UNngjg= Received: from DESKTOP-8BT1A2O.localdomain ( [58.22.7.114]) by bizesmtp.qq.com (ESMTP) with id ; Fri, 28 Nov 2025 10:04:31 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 13829267849716627158 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 v11 04/11] drm/bridge: aux: Add drm_aux_bridge_register_from_node() Date: Fri, 28 Nov 2025 10:03:58 +0800 Message-Id: <20251128020405.90-5-kernel@airkyi.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20251128020405.90-1-kernel@airkyi.com> References: <20251128020405.90-1-kernel@airkyi.com> X-QQ-SENDSIZE: 520 Feedback-ID: esmtpsz:airkyi.com:qybglogicsvrgz:qybglogicsvrgz6b-0 X-QQ-XMAILINFO: Md8NwmqZYy3fR9xImrRIMtgsOkw+04XVhEO/WC1DmMAvyHPj18ls2KBm LWWKXe0PB+w2+jhpiwHL+Mv8DTAMacaS9zpFFycnRrAcMDONP6f7A1kAR0JT7AhOiF317Pn Sy5FPc4by6FkC4UoWCgA7wLfZ45U/v+UgP/sw3tLk3piCe58CIPPrUJaYNQUKgRmDrjIbSz AZjilmDbvJo+Xr+axZb/XKwBCg7w6k3yG1wUNQtvmljlOtiHnTARG0/Jteq2NHbsFuIRNe6 V4Fhh/Ga8yHZTC8tF7n+Ul3ll5o4T4ActEjBTmuoay0RA0kFYIjhxHk/CqeeIBi8aQS0iLf lB7DZmTm66YDYg/+/ADlRKXVm8AlQd7rgKhrEKGSqC+UZizcRK+JKTgElaN2d22eNyi6SN7 EDiAJ+6/f7HULOwaYq7FPuQm3uaihj2cuNYw3ZCiLxt20YhD31aqclT32DgklJrw1dxPm5s 4tsVv0QrdCVm7Td/XdHNRiroXq91DdkA3n3GmiBMoEh5iEVEPwxKbrcz2I+iu/h2JIxmzj+ uj9Zmc9EWT+vI6DlPHarEJcwvLrRCon51qhIegY+/vJBbchNOcqfcmJ8IGdNqDlCY/JzSiF 4DuxsVuE458jUxYzlYZyADI9SHHkx/QItJAG9ZnvrjzX0F5aSYT5em25Vv0Xdcv5KbxulDH in+f2j5LNgBMt4To6ol2/wSxUpx6uz1AfyQcFhsObq867LaU5ZaYdVzEboatGZtZDaNtgTn eS/kg3NTVJVy12UmWUtGERSavncdoCJP4Dhm0wkMENSr7vTI1/eQb89aEfT8vT3ZisSYjyx M26mc9PKXP44UvfEW3hfjw6Y6Bv/d55JoU1+fut9Q7RQDsTY4Iq/w7tlLmj1PsfRXjciZN7 osixjvpujixevygq1MjQFNWf8esid5nsKsfZSHLwNXC8U+xhAmEaUHuFPF2eWW/Mb9IkXGd w4BL8OIcCer/BnF4RtjeGpWTYpjsBDyo1BQHzdC5cIVu85GBBvpvmXO/jxLXK2Lv3OUg94a 9IVQEJuw== X-QQ-XMRINFO: MSVp+SPm3vtS1Vd6Y4Mggwc= 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