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 351F03D88F5 for ; Thu, 21 May 2026 08:38:19 +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=1779352704; cv=none; b=KHW59jtGLHEmSGfVNKVxmLI75b3Mqz8uGhkpp2pfhAbku+oPTU/jJZI6SBOqSDXx1dCTgbX55USMJmXivIY+Cf9IJqPC8U2PPzkgxTsVVSRhwVsP4U6zj+MKfr7A1KYtkTk+wvq5q43QCHDROi6zeQz4ZAvdx2HvsvOEitz4xIg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779352704; c=relaxed/simple; bh=wJdZb8+vj1m+b+x+FZVXzS56tnroKpQQ8wlBgMpo8tk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=lwr7M8aa8CvcCBSAFYL399ZN6PHQZuUWEcI22C6HwpF06dthCaWBejEnWsDxDcYc2R561mLSfBRzlfJ+1uZEP6uHSnzeKRHwVEY6qnhPDo8U1IPuPaQa8fypy5tqYNR/J8U4sQy/CfMqMTOFqGd//aJ4g7pEaoZ12TtM15Z2WVU= 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=GWDhCsBL; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=CKL5OZUm; 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="GWDhCsBL"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="CKL5OZUm" Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 64L8Ot272071734 for ; Thu, 21 May 2026 08:38:16 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= ZtxQlK7p/R1CF6Ljia73lN4Xy0wFZa6+gfpy47TBpjw=; b=GWDhCsBLIGtPgv2W c9gVxkym+zZjL9O4PUuVE0sF3TxrrJ6W5P3YbWhFCYzbbTfeqiCKQ+7SjTWsibzn nNNxjDvPT7iIjQZ+n9MfKwkkhIzayMl54q//AsstKcgDfnUZQVuOxCMKVlGH9lw9 PZiM2P2RNKg7Gu4ga5SI8yUCy2o1Alc/GuZ6YDxT7crfbaT4vwtm/i9bxzxEocvd fOD7lEaiVoCth1jh2crUqVtYTKIJ7opGwu8BeVmYBKATumsB560irFMWUIIgRWfl Qi2+v+b4ajc9hEwmmWkVKbwJcgRWW50ip1+KMSm14d7jLWoHZoTZz3V+xv7FD28u phe18A== Received: from mail-qt1-f199.google.com (mail-qt1-f199.google.com [209.85.160.199]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4e9r961gbd-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Thu, 21 May 2026 08:38:15 +0000 (GMT) Received: by mail-qt1-f199.google.com with SMTP id d75a77b69052e-516879bf1a7so158293341cf.1 for ; Thu, 21 May 2026 01:38:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1779352695; x=1779957495; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=ZtxQlK7p/R1CF6Ljia73lN4Xy0wFZa6+gfpy47TBpjw=; b=CKL5OZUmK4Hln12OCWjDVk2MwmP/wJb2kWEeL4nKBM/SaU5qzkR0CuZ29/cNR2Gh4z zNToI0X/leevukcXXQn5C/UWQkhCWE00a/Tgd+ZHtK+jX3ysV+gM5QoXAhASZZBkCmrg IIR/VVQIFuABkbcXUQeXl9qRWqotdf6YwnQJO2W4TNAurDyweOCS5zpChC34n/q6O0LP 41MiHrHJ9fNjo+Q3H0jBNsi8vhMhVRJM3mc9+l1aVDH0ZC+yhK9Zw7QoZW4rtzmVzaKw ifPK3YSrx2LgXvd1duzqmOuc4E7JcJ0th8IfhkXlgdtmSEoB7DAQPs+pcRUGgI0B/6uq x3dg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779352695; x=1779957495; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-gg:x-gm-message-state:from:to :cc:subject:date:message-id:reply-to; bh=ZtxQlK7p/R1CF6Ljia73lN4Xy0wFZa6+gfpy47TBpjw=; b=sSF9Lx0AL3mbg6vH5mgnag9a3YOhmn4mqS/l2nRHK7GesM/8g5eojtI2rzAWUylaV9 WT5OarF4tVLjEfwgYp1uOHnG7rqU7vgaCBKK1aqffjRmZe1tCFabj9Hkqa+u2lX9kZQU BulbHMB9dfMC5eWl3JRrmrKPb8iF0qJogkfuk3CgRXqmrTcgkvgLsfBYkdAjr5GWea1r mEj3IwmsQMfaNVigPxag/ke68R59NQUc6byi5xP0U8qDtmyxw8REhGp9tWpO/d/Mlfgo aYVb000lf9gr4hXT5ZuGVyRv7TPoIZxt37jmZahkX7Xz2KhkeU35/sPQCKCESHGfZ1S+ wE1A== X-Forwarded-Encrypted: i=1; AFNElJ90XQogSL5E+0EIDYQHhD/IzBGaD529E6+NYFlAn8EhQ6VgNibfJ+y2J/QaQsp/DMZNonckvEVvdg==@vger.kernel.org X-Gm-Message-State: AOJu0Yx4Z32TyjpGlLKIaWNlurajIKy91exgyaMAfTtSmyrHTJZSnAcs WzUqvDlk9i+P4wsC9QZL4agkL/UWaDnsIUY7z9QiETtph5yhAZPpDYTcYvhq/U/vVTOBu5DFpF9 WzdTmK7Ook/4Tpp5vwtaogjGylcx7L9jI+mySDCZAu1Qm2TmCIoOUvNbuWZ0apA== X-Gm-Gg: Acq92OEeCx6P9AZnk4K+DzpMwzq5+aBqpu+sxY/m8766DzBnrSA1EQ9j2XCMMtpCu9J Ds0oDTTuvOwvKgCeIQO8CainP5uHEKumDfWxWxYVAQp7fpURe93uPGhtl+t0PUKtrsUSa1AWJai ruKxPiCc3/xj5VgF2c9TbK3ExjSrgguGhOJ0kNffDV9EbzOu3mFj1G3YUsDBuiKvzES9TJ70xHH 2FLp8I1jOhzapLzf4gmERbEz0uLrZPvjRjvHQz00TlUN40CIiuBt8KydzVr5s0ulVR55tIXWm9q zq0773f5uF+s6RsJ6vq+hd+twn8EDhqHXWr2ILxVdSbC0zQf5+KG+GbNDxDuyFsQIYQf3wS/UND wwx+PMNv0oaE9yALA0MnO1VE98RJRXu5fHjXZv0nlTiethc7RIkS/Vd9EQ4aFpQ== X-Received: by 2002:a05:622a:a90b:b0:515:7d69:4c0a with SMTP id d75a77b69052e-516c54cdacamr16055521cf.2.1779352695388; Thu, 21 May 2026 01:38:15 -0700 (PDT) X-Received: by 2002:a05:622a:a90b:b0:515:7d69:4c0a with SMTP id d75a77b69052e-516c54cdacamr16055371cf.2.1779352694912; Thu, 21 May 2026 01:38:14 -0700 (PDT) Received: from brgl-qcom.local ([2a01:cb1d:dc:7e00:bb10:ae82:b7c3:d15a]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4903caede9fsm10502405e9.14.2026.05.21.01.38.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 21 May 2026 01:38:14 -0700 (PDT) From: Bartosz Golaszewski Date: Thu, 21 May 2026 10:36:46 +0200 Subject: [PATCH 23/23] driver core: platform: count references to all kinds of firmware nodes Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260521-pdev-fwnode-ref-v1-23-88c324a1b8d2@oss.qualcomm.com> References: <20260521-pdev-fwnode-ref-v1-0-88c324a1b8d2@oss.qualcomm.com> In-Reply-To: <20260521-pdev-fwnode-ref-v1-0-88c324a1b8d2@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, Bartosz Golaszewski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2549; i=bartosz.golaszewski@oss.qualcomm.com; h=from:subject:message-id; bh=wJdZb8+vj1m+b+x+FZVXzS56tnroKpQQ8wlBgMpo8tk=; b=owEBbQKS/ZANAwAKAQWdLsv/NoTDAcsmYgBqDsQvywAOqGOhQtns88s4FBMXaMUo4jbwN9DyD kRRxvjg7imJAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCag7ELwAKCRAFnS7L/zaE w4SGD/9+gwveQq+/mlMfCiUitFiJRq1flDEf0vJNh9aBWt149vNSL1T8VDY/lOW9NDE2gZ1k+MZ JdADhVpNlL4M9I8vqMk/LDuOM9lz0fB8NFhRkPH1xW4zmgtjdYwt+13FVlDs/IBQH/Hm7ckUoSG huJzETXgeWiXzfa1T7R2PdUfzVp+UKttU9KJ2EdakgnCyQt0lSOc+wM22TMQRMtX/mJW7CWw7QO sUVAv4Al0K4BK9tKQhdd1KUp4kJ4F5ZHrJeF91QGJdhdcRGQne3vkE+fkflalspO6rd+fnSCXaT dFaB7eD4PFEFbn7OiTETNfps8uMEF6sz7P/CYX2u7Fu/x9VHXGuLhHe05rMwNi4cND/uNbxsoyk kJb2aBlDNL+QlF0bKrv7s1K6Yqyr56o9gHv4tqjc5avOoTQbqhhJaEhONnXha8/kQUB5ye6tPel 6AhL2jn2ZBKdNJRSbbS32aWWlLlMF6GnoUUBF3q4J7akrmXxbJNBoWUC/g4H/PM2b8QWJoSTDWx ObAX2bZ9TMgCFdvJDlPIZrQ/7RhHM4ySdHYIx34eebl0A8224pPJoOPzFkT5dvf7MTfHvmZsv5p Ayb19s0ChWVPXSppfxym2p/f8ro/874bWyD0S3JyVxkIeRz2d+Gpwqty4SNJ+8NJn95l8/hU4xg 3BVRH8Q1h4ZSD4w== X-Developer-Key: i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 X-Proofpoint-ORIG-GUID: DYMv7mf7WnckBsLbM-n4E_Vhf6cGa1pW X-Proofpoint-GUID: DYMv7mf7WnckBsLbM-n4E_Vhf6cGa1pW X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNTIxMDA4MyBTYWx0ZWRfX6SSF4Hom7Co/ OtpdGU9Bv1K9GSwJ2KI99WTyo3cwSZKONTZGOL5HBdFpM1XpglCT3jX7EqXUUvOuoaxaIdaYEh3 q2mMOixn03OemnWOskjHEbm1HxDl2VFk+3rWCYSiilzm60IHrH6WV72fUAkUscfWix/aErtfyz2 32jhwaj0YmYvOXnYQejdh6qUNejV9IYldQ9oPU7PxERABpruhYK81FitI/nTwyTW6VGQFxLncxm pBvZsHHdZYjHVInDyL7/BheGPQr5XxaVzIPNSoYQ7Qb4OjDWVIBjG6CDyRGq1qHdu4kuvbfAtKI AIy8aenLTyYglhPCIUgyF3q+AXpi7/MLFUFqn2Ewy6AcSfgGQdlmsHzbWlKTROEg3uWVhaH/E2O sozGE/kDx5RjeyS85fhcB7FuoUap7cPpoXA+wZI8Bmr0zJgvyahylJHbV3ipV1MhFZg/342mIUN 0NW5NoPWSVn31+dlcMw== X-Authority-Analysis: v=2.4 cv=GqFyPE1C c=1 sm=1 tr=0 ts=6a0ec477 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=NGcC8JguVDcA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=gowsoOTTUOVcmtlkKump:22 a=EUspDBNiAAAA:8 a=2sGp0kyKjRk1obZUzdUA:9 a=QEXdDO2ut3YA:10 a=kacYvNCVWA4VmyqE58fU:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-05-21_01,2026-05-18_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 adultscore=0 spamscore=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 clxscore=1015 impostorscore=0 suspectscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2605130000 definitions=main-2605210083 When using platform_device_register_full(), we currently only increase the reference count of the OF node associated with a platform device. We symmetrically decrease it in platform_device_release(). With all users in tree now converted to using provided platform device helpers for assigning OF and firmware nodes, we can now switch to counting references of all kinds of firmware nodes. Signed-off-by: Bartosz Golaszewski --- drivers/base/platform.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/drivers/base/platform.c b/drivers/base/platform.c index b14f707f077bcc535fff9484d1ec904616d0a1d1..2a99162263e95f026830a437047dbf9fd347a27e 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -599,7 +599,7 @@ static void platform_device_release(struct device *dev) struct platform_object *pa = container_of(dev, struct platform_object, pdev.dev); - of_node_put(pa->pdev.dev.of_node); + fwnode_handle_put(pa->pdev.dev.fwnode); kfree(pa->pdev.dev.platform_data); kfree(pa->pdev.mfd_cell); kfree(pa->pdev.resource); @@ -705,9 +705,7 @@ EXPORT_SYMBOL_GPL(platform_device_add_data); 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); + platform_device_set_fwnode(pdev, of_fwnode_handle(np)); } EXPORT_SYMBOL_GPL(platform_device_set_of_node); @@ -723,10 +721,9 @@ EXPORT_SYMBOL_GPL(platform_device_set_of_node); void platform_device_set_fwnode(struct platform_device *pdev, struct fwnode_handle *fwnode) { - if (is_of_node(fwnode)) - platform_device_set_of_node(pdev, to_of_node(fwnode)); - else - pdev->dev.fwnode = fwnode; + fwnode_handle_put(pdev->dev.fwnode); + pdev->dev.fwnode = fwnode_handle_get(fwnode); + pdev->dev.of_node = to_of_node(fwnode); } EXPORT_SYMBOL_GPL(platform_device_set_fwnode); @@ -921,8 +918,8 @@ struct platform_device *platform_device_register_full(const struct platform_devi return ERR_PTR(-ENOMEM); pdev->dev.parent = pdevinfo->parent; - pdev->dev.fwnode = pdevinfo->fwnode; - pdev->dev.of_node = of_node_get(to_of_node(pdev->dev.fwnode)); + pdev->dev.fwnode = fwnode_handle_get(pdevinfo->fwnode); + pdev->dev.of_node = to_of_node(pdev->dev.fwnode); dev_assign_of_node_reused(&pdev->dev, pdevinfo->of_node_reused); if (pdevinfo->dma_mask) { -- 2.47.3