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Mon, 05 Jan 2026 04:28:08 -0800 (PST) Received: from hu-sumk-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a2f3c82a10sm448109275ad.26.2026.01.05.04.27.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 05 Jan 2026 04:28:08 -0800 (PST) From: Sumit Kumar Subject: [PATCH 0/2] PCI: dwc: Add multi-port controller support Date: Mon, 05 Jan 2026 17:57:53 +0530 Message-Id: <20260105-dt-parser-v1-0-b11c63cb5e2c@oss.qualcomm.com> 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 X-B4-Tracking: v=1; b=H4sIAEmuW2kC/3WOy24DIQxFfyViXSJsMBm66n9UXQDjSZCaTArpq FU0/15IF53msbF0LZ9zfRaFc+IinldnkXlKJY2HGuBpJeLOH7YsU1+zQIUECpTsT/Loc6Wk6wK pyNANEUS9P2Ye0tfF9fpW8y6V05i/L+oJ2vbXAmAWlgmkkp1G6nUcYBP4ZSxl/fHp3+O436/ra O4K2tqO12Ak6513JpAZbsH2xYR/zfhfgE1gbPSBSTOEBwK9FOilQFeB7gk1RUIi++j1Brpr0BA RO2vYdfFO8zzPPxbKniedAQAA 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=1767616078; l=1933; i=sumit.kumar@oss.qualcomm.com; s=20250409; h=from:subject:message-id; bh=oOdjw5Byp9hHCPO/ockAN81t86SXy2F/vEnb3wQ8Fiw=; b=WU8lb1IRlgnKDoA9DoKTUmSQTgI6f7zeHzmNW0Tkt7aRJYhehUZTwlR+K5OXYgJ0gdfAFYhjX qSneDuM7UF2AaUjsAqusdejjuvDVr2QpTc2oXVQufADAoi3I1PrM2Fo X-Developer-Key: i=sumit.kumar@oss.qualcomm.com; a=ed25519; pk=3cys6srXqLACgA68n7n7KjDeM9JiMK1w6VxzMxr0dnM= X-Authority-Analysis: v=2.4 cv=CZYFJbrl c=1 sm=1 tr=0 ts=695bae5a cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=vUbySO9Y5rIA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=EUspDBNiAAAA:8 a=k2kXPNx1VYhKFT5-HLMA:9 a=QEXdDO2ut3YA:10 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMTA1MDEwOSBTYWx0ZWRfX+o49JxhFyS9p vdoEOil0rvr9GC9mV0PeV3pqeIGCj6xMqoVhPGoTFfOzuDkORUtELsBDOpZQRXbxyt1id2jMLSK xXtvqgWoGSRic5JsGrFLzksbn+MQCVRpLbajjjbTv0ngE9r8fp3Hc4eb1p7O9TYGnX9eVmawd0R BlE798YLgVRV7oEJROXJLUW1Fxalf17pg9QAUV85ptfm46IG4poQM+z69feFvV/SeWsiw0OZz2N CgIzO2FjAnNy9BKD12YFMhB4da+9qzrXS+wRqf/sv0VHbRpfWxPV+7acb6cAMihnIrsaNnMGirq /0Lvu28/pYJ1lUccJUmPYu4Pt9DSOBu9uxT+SsVmndq0gBqr4/rFG5WYyq3khEL2AbK7tC4wvcb hoWeM5KfJfyTpKQFvEsZWu6sOZxzS0y5s3eZTEWg8XaHQGKyqwmDN24ZhH7Xqfd9beZ4V3pUz7r x/ABT6AhywB0t//YxsA== X-Proofpoint-GUID: _u5jqfA3K8SUsooN7PGQHuSoJDnH2Lda X-Proofpoint-ORIG-GUID: _u5jqfA3K8SUsooN7PGQHuSoJDnH2Lda X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2026-01-05_01,2025-12-31_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1011 priorityscore=1501 spamscore=0 bulkscore=0 lowpriorityscore=0 impostorscore=0 suspectscore=0 adultscore=0 phishscore=0 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2512120000 definitions=main-2601050109 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 --- 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 | 168 ++++++++++++++++++---- 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, 226 insertions(+), 73 deletions(-) --- base-commit: 097a6c336d0080725c626fda118ecfec448acd0f change-id: 20251010-dt-parser-98b50ce18fc1 Best regards, -- Sumit Kumar