Hi, I tested linux-next-20241101 with the Raspberry Pi 4 (8 GB RAM, arm64/defconfig) and during boot the driver pcie_bwctrl fails to probe. Since this driver is very new, I assume this never worked before: [ 6.843802] brcm-pcie fd500000.pcie: host bridge /scb/pcie@7d500000 ranges: [ 6.843851] brcm-pcie fd500000.pcie: No bus range found for /scb/pcie@7d500000, using [bus 00-ff] [ 6.843900] brcm-pcie fd500000.pcie: MEM 0x0600000000..0x0603ffffff -> 0x00f8000000 [ 6.843940] brcm-pcie fd500000.pcie: IB MEM 0x0000000000..0x00bfffffff -> 0x0400000000 [ 6.859915] vchiq: module is from the staging directory, the quality is unknown, you have been warned. [ 6.885670] brcm-pcie fd500000.pcie: PCI host bridge to bus 0000:00 [ 6.885704] pci_bus 0000:00: root bus resource [bus 00-ff] [ 6.885725] pci_bus 0000:00: root bus resource [mem 0x600000000-0x603ffffff] (bus address [0xf8000000-0xfbffffff]) [ 6.885823] pci 0000:00:00.0: [14e4:2711] type 01 class 0x060400 PCIe Root Port [ 6.885858] pci 0000:00:00.0: PCI bridge to [bus 01] [ 6.885876] pci 0000:00:00.0: bridge window [mem 0x600000000-0x6000fffff] [ 6.885954] pci 0000:00:00.0: PME# supported from D0 D3hot [ 6.909911] pci_bus 0000:01: supply vpcie3v3 not found, using dummy regulator [ 6.910159] pci_bus 0000:01: supply vpcie3v3aux not found, using dummy regulator [ 6.910251] pci_bus 0000:01: supply vpcie12v not found, using dummy regulator [ 6.922254] mmc1: new high speed SDIO card at address 0001 [ 7.013175] brcm-pcie fd500000.pcie: clkreq-mode set to default [ 7.015309] brcm-pcie fd500000.pcie: link up, 5.0 GT/s PCIe x1 (SSC) [ 7.015526] pci 0000:01:00.0: [1106:3483] type 00 class 0x0c0330 PCIe Endpoint [ 7.015626] pci 0000:01:00.0: BAR 0 [mem 0x00000000-0x00000fff 64bit] [ 7.015954] pci 0000:01:00.0: PME# supported from D0 D3hot [ 7.062153] pci 0000:00:00.0: bridge window [mem 0x600000000-0x6000fffff]: assigned [ 7.062191] pci 0000:01:00.0: BAR 0 [mem 0x600000000-0x600000fff 64bit]: assigned [ 7.062221] pci 0000:00:00.0: PCI bridge to [bus 01] [ 7.062237] pci 0000:00:00.0: bridge window [mem 0x600000000-0x6000fffff] [ 7.062255] pci_bus 0000:00: resource 4 [mem 0x600000000-0x603ffffff] [ 7.062269] pci_bus 0000:01: resource 1 [mem 0x600000000-0x6000fffff] [ 7.062590] pcieport 0000:00:00.0: enabling device (0000 -> 0002) [ 7.062812] pcieport 0000:00:00.0: PME: Signaling with IRQ 39 [ 7.072890] pcieport 0000:00:00.0: AER: enabled with IRQ 39 [ 7.091767] v3d fec00000.gpu: [drm] Using Transparent Hugepages [ 7.124274] genirq: Flags mismatch irq 39. 00002084 (PCIe bwctrl) vs. 00200084 (PCIe PME) [ 7.124391] pcie_bwctrl 0000:00:00.0:pcie010: probe with driver pcie_bwctrl failed with error -16
