From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpbg151.qq.com (smtpbg151.qq.com [18.169.211.239]) (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 68A7828B7EA; Thu, 4 Dec 2025 06:31:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=18.169.211.239 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764829911; cv=none; b=pL9a9aph6/N1tggOlXOH+B/x+mhHMVbfjPumfJ32CHsG3lJHVC6XhpB8xaANgLrhw7KV/Zg0dceUtHrmYyl41P+aAiBrjU8u8+rh8CYDAFBHyBpE/Ru1n8llx9WLE10udAR8azo7uzbz4FVCKrqH/M/EEnK2AD+0YhyUVrdkM9s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764829911; c=relaxed/simple; bh=er8jqugAOtZH14+xsvNPaWFL5/vXyjQ3XZItkrwqyNA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References; b=ceelNs8aN+nORBdn8dsqZzZju1vpOgGO/9OyhlFevnAJU44pMzdpL5GPisK3zMLO0Tf3eYYPxdzrJQtGMFkNgdPkQrkZ5ULzz9evxgFHBQBLtCBQfzsMS9wYIvorqnsc7uNy8gcd2jRb5LApL2aZXM1PieZClC8huYJuPyHBu0M= 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=qNccVOBW; arc=none smtp.client-ip=18.169.211.239 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="qNccVOBW" 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: MsL7hwqo9bYs6xFPPVQf+22XkcID6WWuVysNNAL64xdmMRdhdcWscNap 8yJ2bAyPjYsPxoUrfzD2vEKjmho6koPmp+2UQWhXlNcGwRMiFzYN8HbmcIpFWivwo80N3wB 9njmXL1HYSUJQHRh3ZqTde2+1Q6YML8JGaIrVEyoPM2QbIWsLwjdQiMTnlLF6g4XnBwGXVd 5wj1W4/NwNE9gcyThi1NZySkxMdwH6Ux3EjnNmaSRtkCBKEdK0ETAxKIQAVXgytln4pINn8 WTsKLWh+BPDsySLN1nTTgUK1xgVtWlt3b+NVXQk/akz7qMcZPa0zXMnoEdvQBBBwNfd8R+F lACBEA3nFU0IjxBkz8zayizVsaRB+NVwOexXpFncY/6/F0Thq1zCcfmBlTMgiGT2paSAMxc yfCNuk/AxZnDlhOXDyGHiE9Xjl72rsH5CblSu3IXK2/9JhOEXoxv0Ral1Tk4AglY7/ILYMs r8By0j4J3EtPy8xO+tsVDKrs8COL8uWesFClH5L+fCeeDknZ0Gik/YTl34I9ZcYIbgdYOrv nMY3PY2g2IqSuZwCuJm3tDW6S2i9NtC72XLQa3p7392AXUaKIenWL9jlXyF+IzjqygxgABa 4SKuAl9UZOA4qkMAtSFJ/iCU1KW1utGPnQ2MGsMZbTW1bYyvKzxgXMsIPTuKifUvsz5tET7 bMyzQVWNyC8lONBZfYPdUdrFwhGX3rUwQWNPG9EdKHC0DoUBRkE+LloKa7ZyeRA0MaqJ6Z+ Ok00xGYaB7mi3E1CtKbGUwfcycvAjkfT5h5MYmt/jKMy/6J1bLSQGZkvmdo9vUbfGIZ2EN1 q7gpGqRKxrJR4Sw68OpCDp0mmMI3yGngMTzhCMjvkTrgml4PiHzLI39+VDmyx3xkFZXTUel sl2MraddoNeitpfMT0Bbwh99WIO89DS2kXI/MR2qOfQYyaNJva3TQVfJUsOp/29g7WCFeth ubb0SdYQKk4zJu52dZ4hi90w8gIP6Bv2O3Vs/lN5zoXOxqnSVKwg0JhRFHGW378xxowyiki YuzfXEfw== X-QQ-XMRINFO: MPJ6Tf5t3I/ycC2BItcBVIA= 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