From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 979203FC5A2 for ; Mon, 29 Jun 2026 09:13:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782724394; cv=none; b=BhCHbc6tsZo6j/BkTrjVb2fq4xQdw3OD0Bfi3w0hw1pcnzq+4mEufyNfzMjqMITY8oyEH56GhORPi+wWgKAChdDWf+PCSZk92BCNI8t+KaXcDNhUMUgdj6odbMy43LSa/wiJqin8RGHkGuOzO9oIK46AufrS3ju/3nek7BoJdmA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782724394; c=relaxed/simple; bh=4Xem2fZJuhLkEpQ8AuCHhmO9dgYwD7FFiD2wwhhVUBk=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=L4bSnZ0J6ZoHu0cF/bIoHbux/GlaQCfob8Ar7N4iR7ndkMKoOPtVvdms0pXFqcuQjeh8gx4uo/P6/FOS/jJb5vuZ6z0DA+kS0qK4X9t2SeUQIks3EJ+yRchxF+nsscqnW/yAUMBieUKn9Lg3/gvz+zuSA41KdFk/Eoz/mjm8dNo= 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=lka551JY; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=LiDer9Aa; arc=none smtp.client-ip=205.220.168.131 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="lka551JY"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="LiDer9Aa" Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 65T7Dn2D2188700 for ; Mon, 29 Jun 2026 09:13:12 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= BmmK6vf3xg5kSs+g+NySw3CxCiN6R9NnyD/njOvPVjA=; b=lka551JY52AAQD0N E1nsTsclnKJB9amehHdeu7bzmvQhFFyH9jnIDHlkrxX+7hSdRvhB8oznWibv1n47 TQJ93IOSM+SS3HBW6OhkTYu/8uBEGRh96wB+2s3baNMiaHwcod7+emf0GARrG4dG ujmpsZ/GRFx64Ut0bLqS/upYq5ytq9s48TVwl7RViMDdtwEFBTi3PdvLviVP2MFm YTUb+PFU9akJEbNi8hyUgnaCeAdALfzfFj3s7iFe38BNuMC+pavQ9JJtRHyTehT1 FLI6q2M9RNjFVtvofU3cjlu0pDwZzcqZgMmAje0zblGjFrXVez6nANvsIq9pnj3H KnpFzw== Received: from mail-qk1-f198.google.com (mail-qk1-f198.google.com [209.85.222.198]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4f3m4trg1n-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Mon, 29 Jun 2026 09:13:11 +0000 (GMT) Received: by mail-qk1-f198.google.com with SMTP id af79cd13be357-92b2ccd7971so561716285a.0 for ; Mon, 29 Jun 2026 02:13:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1782724391; x=1783329191; darn=lists.linux.dev; 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=BmmK6vf3xg5kSs+g+NySw3CxCiN6R9NnyD/njOvPVjA=; b=LiDer9AaVPWnKW8MmprP2EHKB6Q+vkw3wTZXN3Ea00zcC8QzZgoif1PWPwnqtcZIhu 4qqgXCeYD4L9ovQu85u21q+F9NdzovxugNewkmmEKZCVUVhCv4Ix5aUztOFTFhpHBU30 Nl3aRPlAtPfx6reh8sWkeLaVLto+k36mVkXg1dRDjz5c88B3JZt73ayuKQHZAP1ixrBU +m8IEjgLCIhdN0HI9o8SmFknRPpHC14fsiZE2jQEDvpcEb6dL40r+9C4WoaBKuJp879a FHoCSCmhQqiR9bw26sgPibwhAfdYkyVJgDKJIp3h7gsqSwEFqvql9F2AV/hj+voxwq/J wqng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782724391; x=1783329191; 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=BmmK6vf3xg5kSs+g+NySw3CxCiN6R9NnyD/njOvPVjA=; b=Kpffks2Q0titk5kMYQqapUdov9LiqPedM/Ff+bMpVXh6hLs5wR3ud5JNKtTh92EFXc nuPc4SKV5PKY/w6+BGihp7kSEEOfX4f7VKKFU5hpXO+ClqXYT46VxlYaz1VFM8P/Fn7R qckvMWvUO5gqdqZTHWnYl9DLZm7UUDbdGW45Nm4nukNf2tL2athbaQ3cInZYeOlSm+hI wQde8NSTqb+zEHpe52a0nzHvO1V+aYBaheOEYG8O/A8w49cY9pK6RbBg53MvpXY8XyH3 QAhsqjUdBw/xt7h2dLTGvH91UU/slRKcsYfxEbck8FT6FgfUy59avW5ShddlSDqvZpJJ 4kaA== X-Forwarded-Encrypted: i=1; AFNElJ+MxQpWGHiD9Vv2udYK68z010O1QpGnlb+wOvttvHtL4eSzmBX7/hZDvWGnlsDNWK7w59A=@lists.linux.dev X-Gm-Message-State: AOJu0YwR5of8cQ+mGBaCIMstH54ne37pExF4Sg6+KuFDd1kGjgBYdCs2 87c/MKVdxEExQriD0TH2V+n73v3VpGcz8dGtk0MALSUtRwpwp4nFtd8uVHTSkWRb5lLLzjqDIK/ GuWpVOBeoCJdc362AllammGoERYYzDqNDlrMlOlGU5CmD/NY3NplXyS4= X-Gm-Gg: AfdE7cmQY/FUlEwvJbEcWcsVlcJZ4FptBDH/309MsJ0TI8sDGmA13ZwTfpuaZztcDsS cG6aZENfo75MS+xB9JQSItZRF4j64GQdgrsbyH2XYPTAGy25xsNRUCwBe59xELJMJv/cv1MrIQP mNdOiW46WyN0fYOjPEsRduKlPLHNy2QFLUKBv+FwJKmAQoQg4R0gbClXouJy4UmI9XfPiJ2HgA4 imYHq3h2Td5IeVdrkybxSbLy9YeFpDB4DN4u7wVE39+gkTSSgh7tLHKUNL6XqvmAhX5PKsgrkX8 4rTkjDFKZ2U4HDYrJUumCVRKWBQo+xciWfOq82ZemOEuQuPObACJ52aap3PKHZNuLDsIgOA7+PN N3sfXfUQ/yaqlVbCfYI9pTBzL914wQyLPcaQjo5lm X-Received: by 2002:a05:620a:a195:20b0:92b:4ce5:6390 with SMTP id af79cd13be357-92b4ce57573mr1026440085a.25.1782724390855; Mon, 29 Jun 2026 02:13:10 -0700 (PDT) X-Received: by 2002:a05:620a:a195:20b0:92b:4ce5:6390 with SMTP id af79cd13be357-92b4ce57573mr1026435185a.25.1782724390191; Mon, 29 Jun 2026 02:13:10 -0700 (PDT) Received: from brgl-qcom.local ([2a01:cb1d:dc:7e00:4640:d76a:6126:9b65]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-470f55acda0sm20109240f8f.23.2026.06.29.02.13.07 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Jun 2026 02:13:08 -0700 (PDT) From: Bartosz Golaszewski Date: Mon, 29 Jun 2026 11:12:27 +0200 Subject: [PATCH v2 04/19] driver core: platform: provide platform_device_set_of_node_from_dev() 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: <20260629-pdev-fwnode-ref-v2-4-8abe2513f96e@oss.qualcomm.com> References: <20260629-pdev-fwnode-ref-v2-0-8abe2513f96e@oss.qualcomm.com> In-Reply-To: <20260629-pdev-fwnode-ref-v2-0-8abe2513f96e@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=2284; i=bartosz.golaszewski@oss.qualcomm.com; h=from:subject:message-id; bh=4Xem2fZJuhLkEpQ8AuCHhmO9dgYwD7FFiD2wwhhVUBk=; b=owEBbQKS/ZANAwAKAQWdLsv/NoTDAcsmYgBqQjcKKhTwBlGLPKN++MiZnFDb7ToqrUhpCsLFF bslLR74S6qJAjMEAAEKAB0WIQSR5RMt5bVGHXuiZfwFnS7L/zaEwwUCakI3CgAKCRAFnS7L/zaE w/b0D/9hlzF+MuyoI63nIic0Ze6VbI7qxNCbhn6uZeyniPLgZtbwhc69m2JUdgrAsHuQj0IpgJ5 RCEa24lCvBE2SclclefxC17v1wor7uj4mUrvqJAsmjgFueZdPPr1N600723ruBzPxuJumeQzssh jlRIYTX7/407wi5FmqwD448VpGUlB7Pa8NNjN4IxiVGs5XNbGOoj/im/ZWZEqGnDlSu01mcNJ6H iCfItNYSQATbNs8tXytgXjr2lFulGi9myKKDBQTaxbB5YtuL+8nWjUC+8o8kzBnw0EB5rK2I3RZ xOnAwjeUNAsnoHP1h5Zu3bola+8Dt77547fO6ziravWksfKzGMhGBTDYqtHYdVBNiSbOu01mOhj wW2esT/uXcCEuSBCz5c6WMXwwp5oY07WTlwLR5FKetn3Nr8g0u7Jct0e9Ae0Mt7+sOKVLeVMy6H VRRwZ02oyzNv6rvb2wurGxqaqfrcXzQuJCOYNJ3jXfPXjuhBl0/jsf/Mh+jygRzqUCoxEpt2gB4 VgJ1DsNmgpFosrKXs4a3l3flS+45sPbHJm3BdJMiIo/xXOgRhIEL8CNJjywDB0OugyemEEIs2ih rS4p2TSq2yTzG7YADPWUwWt9NpbmH36Qfqd4amAhIgP0uFrRnLP+2T42NgZ8X9f7xOLG6mDeruO VLhlU915iOWWEBQ== X-Developer-Key: i=bartosz.golaszewski@oss.qualcomm.com; a=openpgp; fpr=169DEB6C0BC3C46013D2C79F11A72EA01471D772 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjI5MDA3NCBTYWx0ZWRfX9Xhg1naWqvmv 2tnQELCIbf6saOXMn2kJ9PVuswYGMJbCelF3v5gZ/BVUfEADBh9QK28zcopWHm+4H5bdDE1OmCL qMUiEdlp1TqwJwEc/hq8LKu5nfWQzhZpquXQkajRiITfsPwkim2Z3ZD3jx262gX6LWIL2qSpt/p w34M7F5T1zD9x/gLyy/jcVO6MSldYHEJdEuJwcvFkAlwtq0XSRky9aolQ+8n4GCUwDtHZB1C3Gt xAWHZRCzqJH8w0074o90KLoElN/EiF2okgQE0k37DMpMxajUx+m/mklRF7+BQ+03X9VqQERmstD TPCXeRcMb34u1UUkzPbamWfT9aFh2K4ZoJRw32oaZwPr4fx1vVsZeAF1Oyl8a1NHlwUVikwmW/O 7V4mk6Ira71XEQPsQWqJn6wlJ60BkM5Bg6wdxAYEsiIrQj+GtACOFTpVpw/jNqqBMAwhrrwvigw C6oYi81L7769mNuDE2w== X-Authority-Analysis: v=2.4 cv=R58z39RX c=1 sm=1 tr=0 ts=6a423727 cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=Um2Pa8k9VHT-vaBCBUpS:22 a=EUspDBNiAAAA:8 a=hkCPowqfBUTF6yk2FrcA:9 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNjI5MDA3NCBTYWx0ZWRfXz/sVyw/q39sk tEsQS3y3iypb9ebEDC26YislfTQLHMm4yUVBJI3CV2XVDgTwPw0hCGX1g963Ni2pGor04iKvenc VdL64DioIsP/1NurmLgIDK2S2fbUBDU= X-Proofpoint-ORIG-GUID: xv8ZpLNgQPaMCIRdRRZbyzm5fcvzGJVB X-Proofpoint-GUID: xv8ZpLNgQPaMCIRdRRZbyzm5fcvzGJVB X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-29_02,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 spamscore=0 suspectscore=0 phishscore=0 clxscore=1015 adultscore=0 malwarescore=0 priorityscore=1501 bulkscore=0 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606290074 Provide a platform-specific variant of device_set_of_node_from_dev(). In addition to bumping the reference count of the OF node being assigned, it also assigns the fwnode of the platform device. Signed-off-by: Bartosz Golaszewski --- drivers/base/platform.c | 16 ++++++++++++++++ include/linux/platform_device.h | 2 ++ 2 files changed, 18 insertions(+) diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 6520b70cf3052d683a2ecb1a0dd7227575546ba0..f24a5f406746b53ca9eaab9472f6dd1345e04ad6 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -730,6 +730,22 @@ void platform_device_set_fwnode(struct platform_device *pdev, } EXPORT_SYMBOL_GPL(platform_device_set_fwnode); +/** + * platform_device_set_of_node_from_dev - reuse OF node of another device + * @pdev: platform device to set the node for + * @dev2: device whose OF node to reuse + * + * Reuses the OF node of another device in this platform device while + * internally keeping track of reference counting. + */ +void platform_device_set_of_node_from_dev(struct platform_device *pdev, + const struct device *dev2) +{ + device_set_of_node_from_dev(&pdev->dev, dev2); + pdev->dev.fwnode = of_fwnode_handle(pdev->dev.of_node); +} +EXPORT_SYMBOL_GPL(platform_device_set_of_node_from_dev); + /** * 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 c463d46b7b9ab6b891df1ca9f0c98608d2bb140f..94b8d2b46e913ebcdbdaa3710f008f478b59d7b4 100644 --- a/include/linux/platform_device.h +++ b/include/linux/platform_device.h @@ -268,6 +268,8 @@ void platform_device_set_of_node(struct platform_device *pdev, struct device_node *np); void platform_device_set_fwnode(struct platform_device *pdev, struct fwnode_handle *fwnode); +void platform_device_set_of_node_from_dev(struct platform_device *pdev, + const struct device *dev2); 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