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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: AW1haW4tMjYwMzA1MDA0NyBTYWx0ZWRfX8MgHFDGT0mi5 d6ccIz6ch6AoE4b6UUJUci3UDD4aug1+9v9aPz06DZxAFWHcq3lIRdUk0q5hRjCIT1AGo1k92Km ME1BNjE9GqxhM+U0jH3X+6pX6kmXn0lD3D1SaZuzmoLqdSlpy45F4VRmcFTDe/de8yuGc/G8YkT VTuIgALlLglIWFc4X41NE4AzdS68zKIUSOQcFTvZMm0iIogDjM0Qle8zFYeLRkEWqZfVxQHdJnx gaFpUA0ZS2zRHQtUOilWtvaxYIEuiwSge7LdmYUinKddDvmOFNkFlsm0TGN/ESAzK96PqlT/EqE TfMWUvCH/lU9GOwc4p6DfhjMgt87PK7LpUEDvvZ8ffNvIzpxMyO1TmeDdKvgudHlWfcZzfFiNPx Ry9JFI2eTFNHMvYfsxficQQ/iz6IUIU5upvNQD6B6To0dKEkcivYZnVkS6+8hMFQ4DlRXKz1j9z oyiiiDB2jmO9t3tCZSw== X-Proofpoint-GUID: YEp0F4q36v7vDD97lFlWtvnnBs3oyMUr X-Authority-Analysis: v=2.4 cv=SqydKfO0 c=1 sm=1 tr=0 ts=69a920c4 cx=c_pps a=vVfyC5vLCtgYJKYeQD43oA==: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=rl5im9kqc5Lf4LNbBjHf:22 X-Proofpoint-ORIG-GUID: YEp0F4q36v7vDD97lFlWtvnnBs3oyMUr 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