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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 59D35EB7EAC for ; Wed, 4 Mar 2026 09:43:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=5ZqODQ5igOoBvPuYVh0rP+EhPppD6n2yhjb+6z4KnfU=; b=D8brN2b8by/wbW4pc4T0zBa9xc 5ljkjwc5qfdtvzyMjhAMR3RwETT7I4Pu5EXM/VKYQdRVMstIg4+hH92WQ2njlVUKYfUDQP7iIAWQU ktMLmoOgJVfH9yN9YineWrKZuMof0SiMlUVAetSZ9fl+rVLRGBBvHpkPTnhvXNQzTIT8QhzuBApyJ ikT6EiVoNyE9M1huOB00t6QA7cIPyjFGQTO29PtFtDxQR1En/OIZyetvqG4vwFMPC2Cswf8EB8uck Pk5yyb0hqsXpL2aqnJ85K6Qh5nYUbGuNNvRR/YmJuAQ2BWT2tDEF3RdsBLCCEJ4h2o10dRlHaDr3F 4WyQKK6Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vxilR-0000000GuJP-0eaa; Wed, 04 Mar 2026 09:43:33 +0000 Received: from smtpbgjp3.qq.com ([54.92.39.34]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vxilM-0000000Gu60-0tPx; Wed, 04 Mar 2026 09:43:29 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=airkyi.com; s=altu2504; t=1772617347; bh=5ZqODQ5igOoBvPuYVh0rP+EhPppD6n2yhjb+6z4KnfU=; h=From:To:Subject:Date:Message-Id; b=Vzsxq4KuXUbXSAnhobw/2VOpLWRuzM98tumz0p9X4+waz8DahHPJRan3/4vqsWe72 ZrKOwxqcqX++fVjVNeR0xKRQsae+ZJ0a9aQA8HGRCDaUmzqKlwiSoJE0goJD5r2IQU wsgInzr9wfYXKD1PviR7HRWwlBpMklrSy2U9PM3M= 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: OfLSn26BfcxeYacFTe4jBqXt6m4gTgGBfIg51iJ+ovRztGVNbIHq01FC PdJPF/Wr/o21vCkgRLwNH4rWZy2dT7Mbl29GZTYKIb4DxJvx/FgymM/adofSC3qDBoym/t5 Srpv4wsVOSc1JC6dmrYwtdbiEXQMlZtF0lTMmXlHnGxG9daEnNCnwzqKJ4oHC9g5aEBpVxx PAiWgEFzfaN0+lwC6HF9cE+zyVAbaSA3HPW2rwMUc77W1Fgfb/ahh4erDaCYJVGCkPc5xKg cwkniU761t00k49RuG7kwsBZOV5QcsKuB/LhdoWUI0eosyBPtPuneBWo621N5d67E2sbAGt BgvD2/M5SPwlMTIc0+6+23MYQj6rdO8Z0otXl/BE4QDPQHoDogowimVJgreERObCevMD8jq ifLMFGuL+4Bia/gunv+1MsGoVX+o4yoYtUg5ekpoNm/IthRo81hEzz1qXX0MzGDupu8z5fN pGEM9mmPWPvVOk93wjDqDyST7yNCI/6rcFR9JbopYA+x/kPhzPj6xcB8bv41a12bln4pk2r 70/2WN+oXB6CMn8DCk/z+WKWw4gWfkAcO+0bVOJvKzL3qM91mV9bC+qynWQHfRb85Um/r6/ 3jf/NE3QlOQfCUrwOWmactMIz7UHKLBh07pBkSBtNLccGkqkhYPUypWmaNP9hgduSR8WnWU nXni8Kbb9lEFBGYi75uJBhrU6bIkssuwh5c0NOXMqIycB3GJ9GOqZ6P6QqllNnIdLFppak4 cGRU/+VOSb0oYR8aOll3nRQlPyp/E0KTUVmm4tSA0wWIdSK3BvRr6H/uqysp4QNvN4BzI1J drfkbQdBqWbbhh3yN2FXFBu0JCfu8FEjdGjPv3UgoQYk41AS0PGszJds2ZpPyGZfkDpRJBe wI4Z9OpfLajZaK5f1aN8JLes5DHJrJZHPJF6NAmhYmTkYfXYMCxoU88KyAafj2nJ7luNJmF p4zWhwkCgT9KAfVsvtHeLmEJrG+uSruu0D+J7WHVJfzWE0kuyYKUVe/9iL/K1qQThBuPija snb8Jo7r3MxoMl5yIhKd5YHcXvZOkFxHJ1Mmd0ew== X-QQ-XMRINFO: OD9hHCdaPRBwH5bRRRw8tsiH4UAatJqXfg== X-QQ-RECHKSPAM: 0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260304_014328_540845_3317C91B X-CRM114-Status: GOOD ( 14.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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