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 B6E23D1D862 for ; Thu, 4 Dec 2025 06:32:39 +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=RCoApW58uwU2PDY/YzjUBVlUXFHY8idxqTE/wHC6S8g=; b=XmG75vWO2ATd6Oe1S6PqtcfQw9 VhwuZOKvoKh9Rscsjca+9u1kgngz3FdqNj4BxHKFakl5IL6gaULrGAZF0MQBbjeSbW+JDoMKef8B9 HzZPsAaLjibrtOHCX/U4n9QeOlDYpwd/i89QXyXpWgFYO/TFaKrGpmSNvArRkUmEN0jXcXgECmRpU JxFLMYHsnhd+Exrbv3P4ghSVcv5INA52uoTGZGpCr1TbFu+rqX/fLXEf517Vj8991ZXt5mASwYIDw fKGs3R96cAXoFPrInkbX+HiL7WUaQnbKw6foeOR8tmcN55+TAXJgnxE5HpQv9+//tNA3D3Wxz6G8Q 7cUH/r6g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vR2tG-00000007YMi-2fek; Thu, 04 Dec 2025 06:32:34 +0000 Received: from smtpbgeu2.qq.com ([18.194.254.142]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vR2t9-00000007Y3i-3ani; Thu, 04 Dec 2025 06:32:32 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=airkyi.com; s=altu2504; t=1764829899; bh=RCoApW58uwU2PDY/YzjUBVlUXFHY8idxqTE/wHC6S8g=; h=From:To:Subject:Date:Message-Id; b=qNccVOBWQol9V0edeDUVs3mW4awCJD66okSBs7bqqfk5ToVoDZJ+iUwmmQIfTbG6v y6qVynSsDhTkJI3wwvvtDVm7BE0Ufvxt9da+PEO6s2jNqhvZZH6ZgSjAtoq/f0C+cy 4xMDE2sovdIN5fvcIHnNeOg1YzXT9lNfpTB1Lq7E= X-QQ-mid: esmtpsz21t1764829897t315fc6bd X-QQ-Originating-IP: 8xj2EBC2OrSdr2vMc6zndzxvKdFt5qIneZrq+PewvGw= Received: from DESKTOP-8BT1A2O.localdomain ( [58.22.7.114]) by bizesmtp.qq.com (ESMTP) with id ; Thu, 04 Dec 2025 14:31:34 +0800 (CST) X-QQ-SSF: 0000000000000000000000000000000 X-QQ-GoodBg: 0 X-BIZMAIL-ID: 17481815092374181840 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: [RESEND PATCH v11 04/11] drm/bridge: aux: Add drm_aux_bridge_register_from_node() Date: Thu, 4 Dec 2025 14:31:02 +0800 Message-Id: <20251204063109.104-5-kernel@airkyi.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20251204063109.104-1-kernel@airkyi.com> References: <20251204063109.104-1-kernel@airkyi.com> X-QQ-SENDSIZE: 520 Feedback-ID: esmtpsz:airkyi.com:qybglogicsvrgz:qybglogicsvrgz6b-0 X-QQ-XMAILINFO: NEaes6yu2o+mFnx7+1TQr1UIMOVJYmUAEUlrMPCY5/Zbw/99H7lxyqYu Xce7TznBk0lRFxNGP0ux3N0T1T/2pdorqz38OXY2cCSE57Q8ch+LwAXDVFDBl+nka4fF0o2 xGBmFAspAqIGd+D6hAtd9H+KHBBCWxvdKlR8WuZSN/hn3Hu6C9YHV4iFToanKBtVaWPlCQP 43WCjBlzIRIO2bJeHn6RMRXvxIdwISJRNOa/VVZWj+1JRr4RJIn/j+YWG5LXCTpyo7Mozo1 3pJ1TZFx+ugPFitRGIzJr4scX8UOCNTd+f8LNK8BXt2n2bACqHCVMQ+UcManZ8bz0sgocmK yz+m45jrnUgzOW/HpCwtOb1toIsWVAIbThuL5Fbp80k+xzEseZKgUlM3fb5KcCLqLR+OUBT dfjRnbMwPK9LcKi41kzacuomV4nDgFR+HNwwIFezBgJIhMkmxslVMFwONsourpIGPjM2LEG MhpK8OQqxQIoU+D9HuJjpnpcqhiAP91xSiQZT2UrXn9wWqlzyoiV546fWeQW3eBYv6EY2ag gNae2800g7RPgcPD63rYFmK91zYj2fvQR/LmF+jXPal/lAQSftYYKRY4FQfJMwSKUzzTALN N4+jnFlUC8THnsAG9pJ2I+8AffwWbb62PcGNqCeEgVx36v+Cq8HsdlcwCzY5Rw4Jw48a4HT EVDUfx99QVkphKsuIxs+Sj3rSmVXpDCAQZLJ1Nfyw1PD+FGIWhWM6XZ+CzHifnC/jCjXO9S j/QhC7ivdH45pvPBu//Rl09gfI04Wyd8V83NRTiNW8x+uh+qlgHEXnwT6+jIAuKRKPYnYUQ 51ZdUPRKSjVgEB4lTQOq6o1Dfw+KBGbAljoT47zAXXvSnHczyYVTM7Sdu/fqZer6Fo7sm/I 0uIaaHbMFzhXmxdBkLVquWipPDV4yZH7+/z9qEAN0uwUEAB7Lmkfx0XdNZwHqNP4Q0kPyB1 i3s3MdETs7VaPVr3dAaQMx1y99EdDiajA+0RwIYxlWEcWmhxEgi4J+uL7GmL/s/1yBr1yTX OdN02r0g== X-QQ-XMRINFO: OWPUhxQsoeAVDbp3OJHYyFg= X-QQ-RECHKSPAM: 0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251203_223228_414495_B67BEBFB X-CRM114-Status: GOOD ( 14.17 ) 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