From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (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 662CA43C7D8 for ; Mon, 6 Jul 2026 12:44:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783341905; cv=none; b=N3DiIdvLDIBVIaSw0M4xSFvN+dsAPGme9Ax90y3sTMaxn1fN84aA4TeDeqrwYEBcKNUEuBcLVUYZkdOXzB5UsLIp5beunYjO7ld48SfeUC/Tj+qp70rkxFHRB1OLblOqczLH4FTsCbXA7pfVlDNItTbEjYSsGlvzEZV/udwKNh0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783341905; c=relaxed/simple; bh=ZvC54swIjtoLdWic7mjkHUk98Z7cygXvR6WiVNV09vM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=KpLQ/9W1wk1HgArcCtkH+1MXzwkA6j+qwQyBzc9mc4ZoqOg7+m/akSDd6/RA8IqJc1id/VsF7yYABIWW/3xsS+JfqRfVDy4rUhi/AdCnGgMnnHsq4MshyH73WIyfKPK/JA9KmOyfosXYxLvZO6Pu8j0RCIqbPTtxUss/1uN9aTE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=jHERcCvS; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=XauDauaP; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="jHERcCvS"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="XauDauaP" 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 666AxNlX395420 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-f71.google.com (mail-qv1-f71.google.com [209.85.219.71]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4f89qpgqht-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-f71.google.com with SMTP id 6a1803df08f44-8f113592bf3so58126676d6.2 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.linux.dev; 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=XauDauaPFFm7WbtxyLX9EM3OVSs2pWYdliJzT9IlHwKrTzzjei6WsKWklJhADzkOqb a1iYvxKfksAmKJNgx42DuqlIeGGfTD5yxbS9kuFEHybAdG8tHG2TGfrO2vaD/hFzasf4 d/RqpifbfiwTa/iUS4PNO4pdDZEd/cMBFvPUwzz6ohrockWHxmY1aCoV157mhIPtzDkN geWj1r8pb2ClYYHkNwLkgADLXsnCCqZK6o6vjtIMuh0sGCO2AyGNwI18Z0xNhAp7CsIf siYuqFtyJFF9t5rDTzXlVwh/GMVNUXXpigQZHY0QGREDwFrge+EqEWzJo7BFMRtqSvh6 VMIQ== 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=X1qV0XNkbwuzfXwJR2S/EI+c76ju0xup5Kn6TpblX+28V1nGN7710iZLOcbzZ2aDdv ciHHJz6KDiXgMjp8Nn5GxhZ3bSYv/uoc1++FhdxK5gXz/hx6sn0spU8M6bxApIzoh5Pm fmkJbRFtzBCX43Z0FiFXxPa+cdWkI+oLrTjYoJyUpOuxYF+IZhMln9BIMOpqTtAfPD0e kvF5ZYnWEjMa2x+AOXA5lAb+r4hL/vslLRGa+D9NsZImULm3kx0B75m4GKZloCaOA3PA SpVjlbkme8I80yvUGaAPuOLsKly0d/gYJOMPV+JoVKmpNmkuZpVWO4AU9WEIZ94S/O6P G0bA== X-Forwarded-Encrypted: i=1; AHgh+RqQfqj2OWNZlidwvzXeoe90VsuzcmLRRKoDRRSfi/PEocG55x4miijtp9LV/wiyT6YUL1s=@lists.linux.dev X-Gm-Message-State: AOJu0Yzer5ATD1TGNBy/eCv0gRze7hn3KqnZSiwjva7u9u1aceLFvSVJ Iz0u7qlpB0FgPfzMXbVpFmxJgwuyYaecRluiu2Mnd1tDmC+VQPm9q0wbaD9ETq1jrvFyV3eCncl 4mdITPw/sAkY1QHHrtoO2i8frORGDcnQLuICPUkAXDRaEoNWFh0tvxK1a/C+w89s= X-Gm-Gg: AfdE7cny3EIU6Ot2t+J4Hv/Px1F5BgWhNkbyR9h1n7Ii9GFN6RwL21d4ql/hpguXrcn Fc0jst6KSuX/843LO9LRns2Rv1KPa9LZbDNcuYR+qlDVRQMfSqz7Zogi4TXGrSS3o96kzLG6r1N cHtKgd454T2eWcSMLImTpsShBGrzmEUczfcZNzTRQ0nIMMsA76SEYm/T+Mt3x7sMmAmhY9KI5UD V5ltw4Er6bvZ7Kap+dIp4UJbeOjq8L3Vr2bI2ACGoa53BO24tbyow4h6p2/JdHtVqt+xxSofx1n WPNbprG2RECrR0V6HZE1FKD7EjAK9K5O1AwZeRIrf0nRE1I1AqtylEtMh1CYyoOISi3UR0Dc6YD pUuPhINjTJsc7eaTLTF3mCKpPBEKqpImqMGw5Qgg3 X-Received: by 2002:a05:620a:3710:b0:92e:8f7f:e51c with SMTP id af79cd13be357-92ebb60a590mr47342885a.53.1783341896228; 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() Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: 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=UgVkIMxJMSkC9lv97toC5g==: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=1HOtulTD9v-eNWfpl4qZ:22 a=Rv2g8BkzVjQTVhhssdqe:22 X-Proofpoint-ORIG-GUID: Lu0R2ZoMoEYDgZXp_eL6vg0TuonCj_Oh X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA2MDEyOSBTYWx0ZWRfX3lZSiH+wDdvo SrtkKfCb3aH+7MyyqrXIlvBxda0/4YQMU9EiFR2aYaeGwxb1Gsp3c6GjyoNZMYxPA7aA1jd/1Hp dsAud5iTFrGX9DbZCtmLCwsfKLEEK5TSoXdXO/1e3OTLYjEaS3GwQKd3WGuOsWRI0jt53hTDx6J 9yRTRcQsU/GYPTUMv5MVXsWuRVz+H7hv+nFKKHIWy4LqhzT6H9oOaMunIjYJAW/JV2ZxnnfCiMe iryrl5oG47DVNWYfMt+q1W56YKSQB48R2XQUPsQdfLxq5k9INax1AFR5tL4GUL2hvN0XYkzRNOX CnMF+wgeBr3TVqMEAXO6GTjpv77AonQZu89OSYGzBludBOO3EHRxrljDCeOilZr1lEYjPAbIEHy eLZm1mzJqPHRDgGdMEPOuS3EMCizYhdK9zXK+46u+BfNRdR3OoHL5/i1C7UetZA0zMQb3t4tBlx 3oIKic4qmqOzfVQpgUw== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA2MDEyOSBTYWx0ZWRfX2/fnMHepLVQY nEDE6+nuKAmQesy9IT/8ognlCuupDrloCVKJWwNyyTwnPswA50gw/6vvzZlzGOsFIBG0nl16KaI H5iMH7oNBhDiINbQD0eEE+OwKiInpn8= X-Proofpoint-GUID: Lu0R2ZoMoEYDgZXp_eL6vg0TuonCj_Oh 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 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