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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 C5097C43458 for ; Mon, 6 Jul 2026 12:44:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 78E5A10E945; Mon, 6 Jul 2026 12:44:59 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=qualcomm.com header.i=@qualcomm.com header.b="jHERcCvS"; dkim=pass (2048-bit key; unprotected) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="K+K7Gud0"; dkim-atps=neutral Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id DB75910E945 for ; Mon, 6 Jul 2026 12:44:57 +0000 (UTC) Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 666AxLhn395413 for ; Mon, 6 Jul 2026 12:44:57 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= 9qaZhnJqkpFuXNUQTMvf64DqKP1Gcowxx+UUDue+d/k=; b=jHERcCvSBjEX85+G wv+iLnRT6hHpxDdY0dS7R0g8NO+qYXJwcgWGOEQO7ZGvZOxy0Q7dy0Hba2un1PBx YmlYOgwY9VTQJpR7MOI1xAGU9FfZOlA+exUr6cSSSKOpYVYiMtNM2Oi81hDyX1lf rKokYFp+tnknPpil7j22bPQBqfzVNGQF+MkNqwFAcSDBWFQJvlTIgsN/6YOkjNfB 2cVS3wfKyk97kCwPoRu+KpyRomaPWnLWCcagvpdzWONQt1gYmYfru2mmiQe7+FzH cpGKefaudU3KsN9qiar8tJGKvN6TLHIebow4FloHMH9JoqRDGUV9WltOTCKn9V5d TJqHog== Received: from mail-qv1-f72.google.com (mail-qv1-f72.google.com [209.85.219.72]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4f89qpgqhs-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Mon, 06 Jul 2026 12:44:56 +0000 (GMT) Received: by mail-qv1-f72.google.com with SMTP id 6a1803df08f44-8f113592bf3so58126646d6.2 for ; Mon, 06 Jul 2026 05:44:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1783341896; x=1783946696; darn=lists.freedesktop.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=9qaZhnJqkpFuXNUQTMvf64DqKP1Gcowxx+UUDue+d/k=; b=K+K7Gud06yFwMyP7y3JAp4lmTNajMJH06K/GE2H23XTofaValMCzq+VNyQuk76rcYz FzfWkl75+ZW7YpD8wNGg0zLiVmuTtEndegBSNecCgp5NIDoXiCP4M9zOwSPcvywLrM1M ltw8FABc2BvI5ORaJgGVsw0hs2cEwzZeXD4goqfgHWT97SnAjaz3N+KNU6rOzw7wH3TO vfVFn6Ewul9P0jB6NyA/4y61vX0J30FlD/lx5CRYWgOnQezN8Js1bwWj/ltprcwu488o 8TTbf8Mv4sUWl6Smf9d/tku/GOjftnFyt5pT+Qyum1q4nwEJOTHp6IoDQHIVuMqvAHBv kStQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1783341896; x=1783946696; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :content-type:mime-version:subject:date:from:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=9qaZhnJqkpFuXNUQTMvf64DqKP1Gcowxx+UUDue+d/k=; b=c3FSWSaZKgj7iVORkDTvBc3L4xE80ztQk7dVFD9qGp5Hi6/HO/bM3xbUL5J7bNX3C8 NRhw8/ukVV+TB9mT0cYO0SvnPP/Xp+orrS1daqLobxC8RNgKXQSpqAjbgJmOv9iLK5S9 C386Bm7c6a6pzWhnr+W9yWAaJWUnbmeuGaDVO5Yc9UI9ymhQnPhf7Fuvnf8D1dxGrayJ J5tLjHqUbcxMilsxT3lYNvm94zRshFxtVYhxRpM4rzziv5CC12zjg37BrzPqp72USk9e CZe6mRIzYoKYEalSCt1b7NJ3BEP3+2CQLEOlAQo+FTRvMfft82qPNyod5LqHajkeZy+h BWOA== X-Forwarded-Encrypted: i=1; AHgh+RouqLSy3K3gS+h0aHnkr+KSQDZbmhkjC8xTDPPwh++zZUPMD1vlJ5mBJF/X9xqm6OCw/8MPAUXl2w==@lists.freedesktop.org X-Gm-Message-State: AOJu0YxqW7G1pgvlDtiGduKmquZOzl81hn+eX12YI+5kWnSFSA/j8kUJ hDWjj0wXODfzPVP0GzfJnxfOHFTTm0NBLZ9iyBlc8wPs9pmVL1X/qGeT4rsJux/vWVvC8+r2lNx QUfMQXXPLf75MOBwjHUDbQZbqtdworFEQFoIlElLrsvzg0OqEZQ/ulIL4WmP5SFkPM9Nxzg== X-Gm-Gg: AfdE7clD2EUfMdu8twyw+YBPyO8MBBISpTCWh5FCFkv04fjs2Z/VuhtiH2cViBw+Jvj mBFPSKzj4t2Hh0TnX/nwt1Ofv7Vq41NljASrplThHJLdcXHQfoqCY2iFALEAb7uSZhp2my6W6wI 0e2UXkSKLHV3EANCkS823/IHQ8NvpqCVx78Rp8td94VboAJx9HegB/Tinq67o/41yLOZv2lmqaP lPlQLzXG9VPkaSjWyqpORsfVLtHgyc2Kn1PUqEh7N9Vt29ohglxaHOUJDWWYIISxtBLbaH4eon/ 8ruCC6d++R4YkKBvmCg+VWB1J6ofenoApYHcEX5+Dr0sYzZ3QLB+TmCei07nhqSAFWnsJqS0B1K KY2EZizHq5w4zF86Te3sEQTYM9wlwfI4q5kao2nKe X-Received: by 2002:a05:620a:3710:b0:92e:8f7f:e51c with SMTP id af79cd13be357-92ebb60a590mr47341885a.53.1783341896218; Mon, 06 Jul 2026 05:44:56 -0700 (PDT) X-Received: by 2002:a05:620a:3710:b0:92e:8f7f:e51c with SMTP id af79cd13be357-92ebb60a590mr47336285a.53.1783341895726; Mon, 06 Jul 2026 05:44:55 -0700 (PDT) Received: from brgl-qcom.local ([2a01:cb1d:dc:7e00:86f0:c42b:ef4c:d3bb]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-47aa0a55be4sm22126539f8f.31.2026.07.06.05.44.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 06 Jul 2026 05:44:54 -0700 (PDT) From: Bartosz Golaszewski Date: Mon, 06 Jul 2026 14:44:14 +0200 Subject: [PATCH v3 02/20] driver core: platform: provide platform_device_set_of_node() MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260706-pdev-fwnode-ref-v3-2-1ff028e33779@oss.qualcomm.com> References: <20260706-pdev-fwnode-ref-v3-0-1ff028e33779@oss.qualcomm.com> In-Reply-To: <20260706-pdev-fwnode-ref-v3-0-1ff028e33779@oss.qualcomm.com> To: Lee Jones , Mark Brown , Thierry Reding , Sebastian Hesselbarth , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Srinivas Kandagatla , Greg Kroah-Hartman , Vinod Koul , "Rafael J. Wysocki" , Danilo Krummrich , Rob Herring , Saravana Kannan , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Andi Shyti , Andy Shevchenko , Joerg Roedel , Will Deacon , Robin Murphy , Doug Berger , Florian Fainelli , Broadcom internal kernel review list , Ulf Hansson , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Matthew Brost , =?utf-8?q?Thomas_Hellstr=C3=B6m?= , Rodrigo Vivi , David Airlie , Simona Vetter , Peter Chen , Paul Cercueil , Bin Liu , Philipp Zabel , Maximilian Luz , Hans de Goede , =?utf-8?q?Ilpo_J=C3=A4rvinen?= , Krzysztof Kozlowski , Benjamin Herrenschmidt Cc: brgl@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-arm-msm@vger.kernel.org, linux-sound@vger.kernel.org, driver-core@lists.linux.dev, devicetree@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-i2c@vger.kernel.org, iommu@lists.linux.dev, linux-pm@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, intel-xe@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-usb@vger.kernel.org, linux-mips@vger.kernel.org, platform-driver-x86@vger.kernel.org, mfd@lists.linux.dev, Bartosz Golaszewski , Manuel Ebner X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2837; i=bartosz.golaszewski@oss.qualcomm.com; h=from:subject:message-id; bh=ZvC54swIjtoLdWic7mjkHUk98Z7cygXvR6WiVNV09vM=; b=owEBbQKS/ZANAwAKAQWdLsv/NoTDAcsmYgBqS6MvV2oOwm8I6DyBnozXcyFSk9osOc4e2GH4g DJh76eJhECJAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCakujLwAKCRAFnS7L/zaE w74pD/0f7wh768Ib4M3VSkBLYD7YQhvFxC2RY+MGZZP+VR1ZlemRCg9DeXdDdSnJSRDL3pft627 DEvgLCBHwMElpwNSxsMWzEZhXl4R8IEAepNXoxVDXBTaHg3jl8EynFQEcWOeyg6HkMutGn3PMWF Wjlt68/Dol/bNnDNzQXKwG4dWAGXaKNln2ReAlzp6+08tymfFK0JoWQ+H+6GPkgzlbEX9CcVawD DKACpO8oiyAfEvlpIepcdNMc5lgfc3jv8gQ89TMoB5ERvz+ga96oVvwZQ3Q4ZPthgfz3wAkwDaB t8HLs9zAF3hupQ1CpfEox0RQEZDOa40SZwCBoEBN13BQBJ6AroiSGotGwZQQQ9aTWFrgZST4gJD SjTeZvyidzE87MxKKYkvxt8NanEKGvWihHCfVtXKt9yMdwr+hSGI96PqwLkOZqj3lOfEjy9zaLz Hj7GbbORQ7C6CvDBp8MHQJkkDKHKAE76uGcslbyA89nnGeDQPZQs8bXxFe5imODg7O3XpEA4Bee zhvO48lmfv/maHlAUdlg9HdHPPrS7lvHqXMB59rQYQQvr9aCZVoPUC/9+l0ig00xy3Q3MYp2FoT xOnkjupxjTDlvOP3c50tvOaWQ5NBcYARj08DrQz6gxBMoL8/9250lNxRls8cpxKP9h/3z02yi9F 7ilBwmbOytfDmMw== X-Developer-Key: i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 X-Authority-Analysis: v=2.4 cv=c6qbhx9l c=1 sm=1 tr=0 ts=6a4ba348 cx=c_pps a=7E5Bxpl4vBhpaufnMqZlrw==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_glEPmIy2e8OvE2BGh3C:22 a=b3CbU_ItAAAA:8 a=QyXUC8HyAAAA:8 a=EUspDBNiAAAA:8 a=Q8RKEeUEMY9O-VPP2I0A:9 a=QEXdDO2ut3YA:10 a=pJ04lnu7RYOZP9TFuWaZ:22 a=Rv2g8BkzVjQTVhhssdqe:22 X-Proofpoint-ORIG-GUID: Rb0FVRLQcG0EctEWtGRhjy4powF0Gm4s X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA2MDEyOSBTYWx0ZWRfX03wbJKr+b7bE X3QNInNz1MTkDduMj5v1/Xb2m15+Qbn7tg/ScwLMYbCmGTh5RXp9y6oMTUOX4lveH1LrNy3j4LF /xjecsDP3rAtCzfAnE6d2Y2Gf5Ckw8RA9HY8aHvH6D8m6fGXacqbWVUhQtr4QXLq9SSKHnivif7 SYlPNFsIKt9xnbb+yuVuAkAt1/wJwbn1ke0qew1qbU8tdhE+WZ4QEQTtgZkZSWxZwwE9fe3vjeA hOPRNdL4K0+583mfXYxfZlry1R9Klgy5HZH3hbw/fSjEr7vCJscN/HfomR9ueW30BcnwdLEwXdJ tamJy1TgaeQTAMMbNx/9dKWK6restd2kll0Qw+luHkFUZGT9y5jegtA502obPFCjgVeoAZOi9vk KAXP1GaiVbTY5e1376Q7UFsCYcdc0YY9UiU1oN6ks8C+ojEy1Sdd2RDS9gfgjV65M06I4/hvv39 ivONQssGYh2iFQvNxPA== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA2MDEyOSBTYWx0ZWRfX/s/CwbeRwvof ssItotbbEn6Xvbg8q5gXWi0SrpiLllCNLf52Zml4Kz8nSNBc+7SJ6Nfl059GxLpWakgFYEm2sWb Bf3ZPJp1SpyX1Bv5Id4D9RZrgCFeuto= X-Proofpoint-GUID: Rb0FVRLQcG0EctEWtGRhjy4powF0Gm4s X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-06_01,2026-07-06_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 bulkscore=0 impostorscore=0 phishscore=0 adultscore=0 lowpriorityscore=0 priorityscore=1501 clxscore=1015 spamscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607060129 X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" Encapsulate the reference counting logic for OF nodes assigned to platform devices created with platform_device_alloc() in a helper function. Make the kerneldoc state that this is the proper interface for assigning OF nodes to dynamically allocated platform devices. This will allow us to switch to counting the references of the device's firmware nodes, not only the OF nodes. Reviewed-by: Manuel Ebner Reviewed-by: Andy Shevchenko Signed-off-by: Bartosz Golaszewski --- drivers/base/platform.c | 18 ++++++++++++++++++ include/linux/platform_device.h | 4 ++++ 2 files changed, 22 insertions(+) diff --git a/drivers/base/platform.c b/drivers/base/platform.c index fb9120b0bcfe0e7dd9dfc0d29b91e0ad40a01440..3188d5aba5f90622f821c695049cacda030204fb 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -693,6 +693,24 @@ int platform_device_add_data(struct platform_device *pdev, const void *data, } EXPORT_SYMBOL_GPL(platform_device_add_data); +/** + * platform_device_set_of_node - assign an OF node to device + * @pdev: platform device to add the node for + * @np: new device node + * + * Assign an OF node to this platform device. Internally keep track of the + * reference count. Devices created with platform_device_alloc() must use this + * function instead of assigning the node manually. + */ +void platform_device_set_of_node(struct platform_device *pdev, + struct device_node *np) +{ + of_node_put(pdev->dev.of_node); + pdev->dev.of_node = of_node_get(np); + pdev->dev.fwnode = of_fwnode_handle(np); +} +EXPORT_SYMBOL_GPL(platform_device_set_of_node); + /** * platform_device_add - add a platform device to device hierarchy * @pdev: platform device we're adding diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h index 8c566f09d04efe420d85ffa046f92c44c6d08526..e9f7baceeb4c8269dbc0143c4d8fc9d73ba024ca 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -19,6 +19,8 @@ struct irq_affinity; struct mfd_cell; struct property_entry; +struct platform_device_id; +struct device_node; struct platform_device { const char *name; @@ -262,6 +264,8 @@ extern int platform_device_add_resources(struct platform_device *pdev, unsigned int num); extern int platform_device_add_data(struct platform_device *pdev, const void *data, size_t size); +void platform_device_set_of_node(struct platform_device *pdev, + struct device_node *np); extern int platform_device_add(struct platform_device *pdev); extern void platform_device_del(struct platform_device *pdev); extern void platform_device_put(struct platform_device *pdev); -- 2.47.3