From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpbgsg1.qq.com (smtpbgsg1.qq.com [54.254.200.92]) (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 C8E972D949F; Thu, 20 Nov 2025 02:24:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=54.254.200.92 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763605461; cv=none; b=JdPphctilPKE7FNubZYJC9w/8VSF9Bmr32FHQ3WpOm+/v29CdKrUbmOXXJIfBvrbBOAqhuqJZ7aiLGsv2LY6l38SzYYM/fa85WFOUFCQazzLMvLa84fkpOKKNFp17G7O49WB+AyuuoI2AZNKI7f6iECiH6uIuIC7qCc1+/9/ggU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763605461; c=relaxed/simple; bh=vsDLDpzUdRvKLfqh5r53F2pJg80bDLMY9OUZw5pQizo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=KaNZu0i6gEuq+JtPGSdWkUan6y+jXF0aaN7GTfW8dfO7yEM3em3bwmySoiKennbNiZOspOh7HEPzJTqTrwVzbNbPGNQhIGXlhg7dil7/xkFkUSEbGDEvF6XrfeXCuh44a9qu8DVhY5QD6l+ssbDp0eR3/vDbegzHmQ6CEblGyew= 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=Hp0aa4k/; arc=none smtp.client-ip=54.254.200.92 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="Hp0aa4k/" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=airkyi.com; s=altu2504; t=1763605450; bh=1Rmi+Q4GF/407K6ZniEsrCCllkX24Iw13eXk+RLRPJY=; h=From:To:Subject:Date:Message-Id; b=Hp0aa4k/br6PbjS95vPQnZpgPyRggBKKdqEtBEhc4r2Bb9Wwr2BXumq+u3ofjnNmM TeN/5fXWEYbtlsniyLesB+dZv0EsHFXsxLcJM+rS7EHlbgn9Wkii9MQBhgL1zdtaqH pyWAugequtHLiJ9N7nIzxPJ94Ysqk6KgVwQxnsR8= X-QQ-mid: zesmtpsz5t1763605449te09995bd X-QQ-Originating-IP: SlP6sV3u7ks5xAuCRdbslt/D/tIaAhTCdFu9YZVAHsA= Received: from DESKTOP-8BT1A2O.localdomain ( [58.22.7.114]) by bizesmtp.qq.com (ESMTP) with id ; Thu, 20 Nov 2025 10:24:06 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 14872000006937239510 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 v10 04/11] drm/bridge: aux: Add drm_aux_bridge_register_from_node() Date: Thu, 20 Nov 2025 10:23:36 +0800 Message-Id: <20251120022343.250-5-kernel@airkyi.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20251120022343.250-1-kernel@airkyi.com> References: <20251120022343.250-1-kernel@airkyi.com> X-QQ-SENDSIZE: 520 Feedback-ID: zesmtpsz:airkyi.com:qybglogicsvrgz:qybglogicsvrgz6b-0 X-QQ-XMAILINFO: Mmvzdtxf/rngUnDKibpYxs1ajCmCS4W9up5e5k67xYJ3fkI5d7aJP+RX aQwk0fwXb5t6WHhaBd2CcgFtLvcTmHqTIrdh3NSi0zYTXGasrFpcuzozan3dyPFhTobGQhS 0y5P1aAtOEnV6LXUl5joY493IgumAzdWCxtxYhOfuj9OoX6g6dWmU5EiSuYhmLGMcfDOWVX O6FWlRCW0NUx0dQqoRxohAjknGvyRAnFvJ4XD46C/J9KFLVO7gmj9O0S0gzLvAkMtj/b9R4 NhelZCp4D4pP2zFPsWplqFwTyWFDot/EPHbz9S4kq76PpQB23MBGHotGnPt4gRvPECmf/9A hastU7c4QgluD5BTjzDt078CDjrFR217s/ET2pYuHoBAjWcbEDsaLNwZWZt0QUBU7HV9T+Q PTwn/zHhaYtzdAQzZ347Jy7YUmxAlG6t8aZ45G94qfMIsZZDqN2W3j5Oa6fOWODF+T5M39h c88hlKoew9OViX99Psn7dZdXtPlhy+tMVRYuVVZm223Zbce/t4gbuZbBZ/HOeSyEciYkq6l ylOPzNJTF05/8+g1Bo47MsajYWopqrl63ED02fCob9vVCSzeIK4AtKaRFBNhQytc5W4J6KD F1Vo0UlNo/g12of5tqfZhIim8fI5QR81/lazdjZdNyEQw/KQskrhDiDMoS/anjn9uCcQZz6 EP12BIUfMott3iIdF3yZxT42wZ+zOzLwl+8Pm+bAPv/3oW18jQ1oqb33y4tqLXSG29XxBMB cceZOzE2hq/VjPwb2wGGoQ+1ZNqWi9HcEyy6+G3gMKygaY9mutaeafgnLsInEBnjvtfafb1 ebSUGsULNBim7Y+N7tbv9vUgehBeBJvecW0KL5s6eCuGytrpKwThu0FLvUsK6lQII9m2SzM G3rDiuDdVQh5BwWw5+/8oHumL+92aDb1Bcb33L8hPJojPg+LcA8H6Axhj636QZoVn54034c ckOGnhd0X8ORtPMvzM/RMkG8Dca2kU2vu3mbM/57cePxrJqk+EviKtthpJoTUvUO2ZcnKNZ bYBOCgh3oJfgGnc84A X-QQ-XMRINFO: NyFYKkN4Ny6FSmKK/uo/jdU= 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 --- 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