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 9665A19CD1B for ; Thu, 5 Mar 2026 06:20:53 +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=1772691654; cv=none; b=Z+rw3MwJIxzlLkGhjJxnzqd4RZ6dZF5wI/hjbsIgF68mUWPScRrEV36eUhiR+cBV3w34WQUenU/C5/SPZU7NHVXTio4+AYVbMWQpNQwPukNIPquTMYVVUnLd9qyJPlroaJ5an+3jmdLjGu4qptFB7euMau/hRpDPs5cqtifsujQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772691654; c=relaxed/simple; bh=pEc/tNwHOsDbqggAZEgpmAYE5s4SuUbHuqybzx9zRvo=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=azdmrIJR6/AXC69pdKr5nafr2Di6Fr+g0+baJsI2OdVRvurPWpQkKU2lWF6X/fcJFbZtWZxFbi33WsSifq2t6NrV+lxm4VSa9jfjMFhAJBamIyouriq59CJOZxH1KwKXE2O7S+/VzRuHFNib/9MBO1yw/mtDrLor0RowR+Rv14I= 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=AD5xkbI9; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=KYhNMk3Z; 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="AD5xkbI9"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="KYhNMk3Z" Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 6251BZZg2665152 for ; Thu, 5 Mar 2026 06:20:53 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=qcppdkim1; bh=zvXOPXCbQlaXN8adhJ+Ra5 kF6Tz5uWjU0aflLiqlQuE=; b=AD5xkbI9PgWUA3qQDSOVYh7+ftEHbxze0S45yF v+S+cN46Y+BxytsEZczdxVlWr9L/TsdO4+K/vepzinK0cJAPVrHTVN+S8+YuuQdy WTEjkVaAuUpLBbWaTMPOUTJhtwt6R/d5oSDp+Cn+FGw3Zm/gg6cJ0dPqxmgfoqdT Jb8aZGJOCkIcTwZuZmmYEzqGb0Y1H7kdK6zbfMGixNnmKYafidNyygRJFWlusOzF IUTMHH7XBf0IN6wGRgYXnk9vurPMi8/KV3m1bcsXDxEHG70a9m5AvOQHroZGinxB swa3Veeq9QbfhGe/0AYUzFVE6WFjJ1IBZpSJ/gZIuywdh1dA== Received: from mail-pj1-f70.google.com (mail-pj1-f70.google.com [209.85.216.70]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4cpuhb1get-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Thu, 05 Mar 2026 06:20:52 +0000 (GMT) Received: by mail-pj1-f70.google.com with SMTP id 98e67ed59e1d1-35845fcf0f5so8720911a91.0 for ; Wed, 04 Mar 2026 22:20:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1772691652; x=1773296452; darn=vger.kernel.org; h=cc:to:content-transfer-encoding:mime-version:message-id:date :subject:from:from:to:cc:subject:date:message-id:reply-to; bh=zvXOPXCbQlaXN8adhJ+Ra5kF6Tz5uWjU0aflLiqlQuE=; b=KYhNMk3ZH+Jqo/IDboj7dPdcHnDJnLnERPnzw9NbItD06R1QGKCyAAjjbvZPYyTZRR qOp4Ep+jiBbSGIk/Astyq+LfuCM8E51sdKGwEKjMyID6w0O5X8xZjDS18SbTb0YYbZof N/2Yy9+wmz0zZH4qNWlhA/mn2Syx/9uktzXy7FPEkJst5EB9JIo6lzPAmOqbj78sI3SG XqITIb18XSLNGQ6rpdpHS2IaeRtQQWhSaozg/LzPYLaE9eYuaMaQVTf1t64tOpmbj27f TO7oOdoXMMN7pGB/6JnrxAijqHLDgA7lytfYkvpP52DU1YO7Bpz5as07qGzKvp+ZuxxD T31Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772691652; x=1773296452; h=cc:to:content-transfer-encoding:mime-version:message-id:date :subject:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=zvXOPXCbQlaXN8adhJ+Ra5kF6Tz5uWjU0aflLiqlQuE=; b=uWiU69cFhgxWGLFwQPDuRQaFbSPyFmUCdpJX42EJxlXZnyBm17TzID2eNPqVi8rbWW ia5KH8u3she6VonsW2ffqVcoXIIX/UMDl2AztlPSLResSLCIQgfH1nu6c9Yjs6r752SH +gCpyXNEYmk6T/mKGU0rDxwqhwwZY882a3m8nug4f9edcLUm0pXy0QkYDz2Qv3IbIcfd TbM2LphLIzfP09ImZci6JGL/oq+8uUPILJczyNBEusoNeEl7PjiphW4VBpGcHunUsGvn uh8gpZt8M6H12JPaPyY9SitUaE29TxCeSBlkCEMzTiRkPJaiFKEPTEQAgL7ncKV/A7RL j6tQ== X-Forwarded-Encrypted: i=1; AJvYcCV7uluLyHGY5v3pN36YTNvM8DatzFwl+ajr5gLWAn7WjCVjkVH00XNSRHjjOLckzxDCaq4ZYPmGqyNYYp0=@vger.kernel.org X-Gm-Message-State: AOJu0YwC4Lgyqwlf+waSbiSObsq6E8gd+knzTteGYRu5Cvh9l7kHIiD9 IEzCNXfzLy1p6ADAHKeNkHLru5OfGXP4aNmO/oRTCsgu7khRCd5YvypTcCqLK+NdDCYGExR//1F rPcwxeejppIhXLV92Wv+aYttFHyH+i8YSC9bQb5ekyCkHfrV6/04Id85K4y5N19+Zt/4= X-Gm-Gg: ATEYQzy9s+h7tKpJ2h6ebEX3mQV7wPNyUo1RrBp+h0RQzpHxru9kN8sC0ErOnC9KVkQ kf/YyhkU+R9sQOj8mootNHjIFTC2r7HamduWv8nrmnhD+RDk7ujvCaiwk4xY2Pc/wDsvcH4qkoH /4FYjkSV6q67D4Mar5Z0LtQhFsQY+yZr4tNj0wl7XrptQoDLxUaOv49Aa49hnF1O5Hr0J6gcAPx FSxM8nAmQAvHykeE5Op1dFXAgxaY/qynNjwngVZLsj5estXmKMiPY/XZsfrHIQdp6HqsSNu4DYS 2EwX9q3U8THsq1knpNvErbHDYNdgoorrzYstTsIxJhh80ntEMN3hoQR9OHuSYX708S0rOWjv8IM Rprt87Rna5ZxBlpY39GnhPJs/1CrHhmU2AiqlKZutA8IeRH0= X-Received: by 2002:a17:90a:c107:b0:359:84a3:1942 with SMTP id 98e67ed59e1d1-359b1c31203mr1234040a91.13.1772691652222; Wed, 04 Mar 2026 22:20:52 -0800 (PST) X-Received: by 2002:a17:90a:c107:b0:359:84a3:1942 with SMTP id 98e67ed59e1d1-359b1c31203mr1234022a91.13.1772691651634; Wed, 04 Mar 2026 22:20:51 -0800 (PST) Received: from hu-sumk-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-359b2d38ab8sm843378a91.1.2026.03.04.22.20.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Mar 2026 22:20:51 -0800 (PST) From: Sumit Kumar Subject: [PATCH v2 0/2] PCI: dwc: Add multi-port controller support Date: Thu, 05 Mar 2026 11:50:35 +0530 Message-Id: <20260305-dt-parser-v2-0-85836db8dc06@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIALMgqWkC/32OQU7DMBBFr1J5jSvP2GPirrgHYmFPJtQSbUpcI lCVu+OUBSFQNpa+Ne/9f1FFhixF7TYXNciYS+6PNeDdRvE+Hp9F57ZmhQYJDBjdnvUpDpXSoUl kWKDpGFS9Pw3S5fer6/Gp5n0u5374uKpHmH+/LABuYRlBG91YpNZyB/dJHvpStq9v8YX7w2Fbn 9ldQV/bcQ0y+RhicIlc9x9IazABsLecSJB/g/P8Eb8n489mnJud55iErEC6IbBLgV0KbBXYltA SExL5W9NnMKxBR0QSvJPQ/DV9mqZP/33nPNYBAAA= X-Change-ID: 20251010-dt-parser-98b50ce18fc1 To: Bjorn Helgaas , Jingoo Han , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Krzysztof Kozlowski , Alim Akhtar , Richard Zhu , Lucas Stach , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Yue Wang , Neil Armstrong , Kevin Hilman , Jerome Brunet , Martin Blumenstingl , Paul Walmsley , Greentime Hu , Samuel Holland , Chuanhua Lei , Marek Vasut , Yoshihiro Shimoda , Geert Uytterhoeven , Magnus Damm , Pratyush Anand , Thierry Reding , Jonathan Hunter Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, imx@lists.linux.dev, linux-amlogic@lists.infradead.org, linux-arm-msm@vger.kernel.org, linux-renesas-soc@vger.kernel.org, linux-tegra@vger.kernel.org, linux-riscv@lists.infradead.org, Sumit Kumar X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1772691640; l=2442; i=sumit.kumar@oss.qualcomm.com; s=20250409; h=from:subject:message-id; bh=pEc/tNwHOsDbqggAZEgpmAYE5s4SuUbHuqybzx9zRvo=; b=t+bdKd9rpg456k4BQVhND8q7IgX2Q/VxxdegM8QDbAtfYkujEJcMPuMBnFidboo8oaraGHI+l fGr4D6tEANDBwAWNqyzdV633zxWT7xdh5IMhQ6/B5lDsMAcYO7jFdNS X-Developer-Key: i=sumit.kumar@oss.qualcomm.com; a=ed25519; pk=3cys6srXqLACgA68n7n7KjDeM9JiMK1w6VxzMxr0dnM= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMzA1MDA0NyBTYWx0ZWRfX7pDYYlsnQL6g YB3W+yf8ROYNauliDE+q9ib4RWPPRfvKPp3D62tnZ87KVuBnCv2JSTHojsuAHQCicl+wO2gMgwc rzLJnOXiW54GKkW3d973RNGnT26zA476GRhS0C43Ak4JPribrsVFextyH/zy00gPA2LqX9f+8sc d8/GE+nolVJcx1KjJF6rJU67HPN3egoXYoQ+9Mbcbm7qYDaZEbTN/PReQJXQruOppl7LBnMmWgN SzGfXeuymhvt4YZ9GZIE0aFKps9OtolZIvg+QN2Xx26YRIcFT0BpDdbBQAW5B2zN5FNva9WOpq0 kztfqDVr7rUWZ4whX9iJLSUXPj3Yd4qcRxPpY0gN9KSo0+NKPY0gTxASNMs+609+fFksHFSttMV vbJ2PK05//OM38IlYGXpOyL4IE3po/pH4DsOmjNot+YvTFMGLcYYsvd31GeZupbcGsEk8m6wXKy pUDbRxu6Z3xDbExrHYA== X-Proofpoint-GUID: UzM63p_e5MBNKl2UwR1AqcS2TKaHDQIY X-Authority-Analysis: v=2.4 cv=SqydKfO0 c=1 sm=1 tr=0 ts=69a920c4 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=Yq5XynenixoA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=s_SlZju52n3xP1ZgpLgA:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-ORIG-GUID: UzM63p_e5MBNKl2UwR1AqcS2TKaHDQIY 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=2026-03-05_01,2026-03-04_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 lowpriorityscore=0 bulkscore=0 spamscore=0 suspectscore=0 impostorscore=0 adultscore=0 clxscore=1015 phishscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2603050047 This series adds support for multi-port PCIe controllers in the DesignWare driver. Currently, the driver only supports a single Root Port with controller-level properties, which doesn't work for multi-port controllers where each port may have different configurations. This series introduces a per-port structure and parsing API that allows each Root Port to be configured independently via pcie@N child nodes in device tree, while maintaining backward compatibility with existing single-port bindings. Signed-off-by: Sumit Kumar --- Changes in v2: - Fix error code preservation in dw_pcie_resume_noirq() to return actual error from dw_pcie_wait_for_link() instead of hardcoded -ETIMEDOUT (Mani). - Initialize ret variable to -ENOENT in dw_pcie_parse_root_ports() (Mani). - dw_pcie_host_init(): Remove -ENOENT error skipping to make parsing failures fatal for now, add TODO comment about making properties optional later (Mani). - Link to v1: https://lore.kernel.org/r/20260105-dt-parser-v1-0-b11c63cb5e2c@oss.qualcomm.com --- Sumit Kumar (2): PCI: API changes for multi-port controller support PCI: dwc: Add multi-port controller support drivers/pci/controller/dwc/pci-exynos.c | 4 +- drivers/pci/controller/dwc/pci-imx6.c | 15 +- drivers/pci/controller/dwc/pci-meson.c | 1 - drivers/pci/controller/dwc/pcie-designware-host.c | 175 ++++++++++++++++++---- drivers/pci/controller/dwc/pcie-designware.c | 32 ++-- drivers/pci/controller/dwc/pcie-designware.h | 17 ++- drivers/pci/controller/dwc/pcie-fu740.c | 6 +- drivers/pci/controller/dwc/pcie-intel-gw.c | 13 +- drivers/pci/controller/dwc/pcie-qcom-common.c | 5 +- drivers/pci/controller/dwc/pcie-qcom-ep.c | 4 +- drivers/pci/controller/dwc/pcie-qcom.c | 4 +- drivers/pci/controller/dwc/pcie-rcar-gen4.c | 13 +- drivers/pci/controller/dwc/pcie-spear13xx.c | 5 +- drivers/pci/controller/dwc/pcie-tegra194.c | 4 +- drivers/pci/of.c | 6 +- drivers/pci/pci.h | 2 + 16 files changed, 232 insertions(+), 74 deletions(-) --- base-commit: 097a6c336d0080725c626fda118ecfec448acd0f change-id: 20251010-dt-parser-98b50ce18fc1 Best regards, -- Sumit Kumar