Merge tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci updates from Bjorn Helgaas:
"Enumeration:

- Wait for device readiness after reset by polling Vendor ID and
looking for Configuration RRS instead of polling the Command
register and looking for non-error completions, to avoid hardware
retries done for RRS on non-Vendor ID reads (Bjorn Helgaas)

- Rename CRS Completion Status to RRS ('Request Retry Status') to
match PCIe r6.0 spec usage (Bjorn Helgaas)

- Clear LBMS bit after a manual link retrain so we don't try to
retrain a link when there's no downstream device anymore (Maciej W.
Rozycki)

- Revert to the original link speed after retraining fails instead of
leaving it restricted to 2.5GT/s, so a future device has a chance
to use higher speeds (Maciej W. Rozycki)

- Wait for each level of downstream bus, not just the first, to
become accessible before restoring devices on that bus (Ilpo
Järvinen)

- Add ARCH_PCI_DEV_GROUPS so s390 can add its own attribute_groups
without having to stomp on the core's pdev->dev.groups (Lukas
Wunner)

Driver binding:

- Export pcim_request_region(), a managed counterpart of
pci_request_region(), for use by drivers (Philipp Stanner)

- Export pcim_iomap_region() and deprecate pcim_iomap_regions()
(Philipp Stanner)

- Request the PCI BAR used by xboxvideo (Philipp Stanner)

- Request and map drm/ast BARs with pcim_iomap_region() (Philipp
Stanner)

MSI:

- Add MSI_FLAG_NO_AFFINITY flag for devices that mux MSIs onto a
single IRQ line and cannot set the affinity of each MSI to a
specific CPU core (Marek Vasut)

- Use MSI_FLAG_NO_AFFINITY and remove unnecessary .irq_set_affinity()
implementations in aardvark, altera, brcmstb, dwc, mediatek-gen3,
mediatek, mobiveil, plda, rcar, tegra, vmd, xilinx-nwl,
xilinx-xdma, and xilinx drivers to avoid 'IRQ: set affinity failed'
warnings (Marek Vasut)

Power management:

- Add pwrctl support for ATH11K inside the WCN6855 package (Konrad
Dybcio)

PCI device hotplug:

- Remove unnecessary hpc_ops struct from shpchp (ngn)

- Check for PCI_POSSIBLE_ERROR(), not 0xffffffff, in cpqphp
(weiyufeng)

Virtualization:

- Mark Creative Labs EMU20k2 INTx masking as broken (Alex Williamson)

- Add an ACS quirk for Qualcomm SA8775P, which doesn't advertise ACS
but does provide ACS-like features (Subramanian Ananthanarayanan)

IOMMU:

- Add function 0 DMA alias quirk for Glenfly Arise audio function,
which uses the function 0 Requester ID (WangYuli)

NPEM:

- Add Native PCIe Enclosure Management (NPEM) support for sysfs
control of NVMe RAID storage indicators (ok/fail/locate/
rebuild/etc) (Mariusz Tkaczyk)

- Add support for the ACPI _DSM PCIe SSD status LED management, which
is functionally similar to NPEM but mediated by platform firmware
(Mariusz Tkaczyk)

Device trees:

- Drop minItems and maxItems from ranges in PCI generic host binding
since host bridges may have several MMIO and I/O port apertures
(Frank Li)

- Add kirin, rcar-gen2, uniphier DT binding top-level constraints for
clocks (Krzysztof Kozlowski)

Altera PCIe controller driver:

- Convert altera DT bindings from text to YAML (Matthew Gerlach)

- Replace TLP_REQ_ID() with macro PCI_DEVID(), which does the same
thing and is what other drivers use (Jinjie Ruan)

Broadcom STB PCIe controller driver:

- Add DT binding maxItems for reset controllers (Jim Quinlan)

- Use the 'bridge' reset method if described in the DT (Jim Quinlan)

- Use the 'swinit' reset method if described in the DT (Jim Quinlan)

- Add 'has_phy' so the existence of a 'rescal' reset controller
doesn't imply software control of it (Jim Quinlan)

- Add support for many inbound DMA windows (Jim Quinlan)

- Rename SoC 'type' to 'soc_base' express the fact that SoCs come in
families of multiple similar devices (Jim Quinlan)

- Add Broadcom 7712 DT description and driver support (Jim Quinlan)

- Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings for
maintainability (Bjorn Helgaas)

Freescale i.MX6 PCIe controller driver:

- Add imx6q-pcie 'dbi2' and 'atu' reg-names for i.MX8M Endpoints
(Richard Zhu)

- Fix a code restructuring error that caused i.MX8MM and i.MX8MP
Endpoints to fail to establish link (Richard Zhu)

- Fix i.MX8MP Endpoint occasional failure to trigger MSI by enforcing
outbound alignment requirement (Richard Zhu)

- Call phy_power_off() in the .probe() error path (Frank Li)

- Rename internal names from imx6_* to imx_* since i.MX7/8/9 are also
supported (Frank Li)

- Manage Refclk by using SoC-specific callbacks instead of switch
statements (Frank Li)

- Manage core reset by using SoC-specific callbacks instead of switch
statements (Frank Li)

- Expand comments for erratum ERR010728 workaround (Frank Li)

- Use generic PHY APIs to configure mode, speed, and submode, which
is harmless for devices that implement their own internal PHY
management and don't set the generic imx_pcie->phy (Frank Li)

- Add i.MX8Q (i.MX8QM, i.MX8QXP, and i.MX8DXL) DT binding and driver
Root Complex support (Richard Zhu)

Freescale Layerscape PCIe controller driver:

- Replace layerscape-pcie DT binding compatible fsl,lx2160a-pcie with
fsl,lx2160ar2-pcie (Frank Li)

- Add layerscape-pcie DT binding deprecated 'num-viewport' property
to address a DT checker warning (Frank Li)

- Change layerscape-pcie DT binding 'fsl,pcie-scfg' to phandle-array
(Frank Li)

Loongson PCIe controller driver:

- Increase max PCI hosts to 8 for Loongson-3C6000 and newer chipsets
(Huacai Chen)

Marvell Aardvark PCIe controller driver:

- Fix issue with emulating Configuration RRS for two-byte reads of
Vendor ID; previously it only worked for four-byte reads (Bjorn
Helgaas)

MediaTek PCIe Gen3 controller driver:

- Add per-SoC struct mtk_gen3_pcie_pdata to support multiple SoC
types (Lorenzo Bianconi)

- Use reset_bulk APIs to manage PHY reset lines (Lorenzo Bianconi)

- Add DT and driver support for Airoha EN7581 PCIe controller
(Lorenzo Bianconi)

Qualcomm PCIe controller driver:

- Update qcom,pcie-sc7280 DT binding with eight interrupts (Rayyan
Ansari)

- Add back DT 'vddpe-3v3-supply', which was incorrectly removed
earlier (Johan Hovold)

- Drop endpoint redundant masking of global IRQ events (Manivannan
Sadhasivam)

- Clarify unknown global IRQ message and only log it once to avoid a
flood (Manivannan Sadhasivam)

- Add 'linux,pci-domain' property to endpoint DT binding (Manivannan
Sadhasivam)

- Assign PCI domain number for endpoint controllers (Manivannan
Sadhasivam)

- Add 'qcom_pcie_ep' and the PCI domain number to IRQ names for
endpoint controller (Manivannan Sadhasivam)

- Add global SPI interrupt for PCIe link events to DT binding
(Manivannan Sadhasivam)

- Add global RC interrupt handler to handle 'Link up' events and
automatically enumerate hot-added devices (Manivannan Sadhasivam)

- Avoid mirroring of DBI and iATU register space so it doesn't
overlap BAR MMIO space (Prudhvi Yarlagadda)

- Enable controller resources like PHY only after PERST# is
deasserted to partially avoid the problem that the endpoint SoC
crashes when accessing things when Refclk is absent (Manivannan
Sadhasivam)

- Add 16.0 GT/s equalization and RX lane margining settings (Shashank
Babu Chinta Venkata)

- Pass domain number to pci_bus_release_domain_nr() explicitly to
avoid a NULL pointer dereference (Manivannan Sadhasivam)

Renesas R-Car PCIe controller driver:

- Make the read-only const array 'check_addr' static (Colin Ian King)

- Add R-Car V4M (R8A779H0) PCIe host and endpoint to DT binding
(Yoshihiro Shimoda)

TI DRA7xx PCIe controller driver:

- Request IRQF_ONESHOT for 'dra7xx-pcie-main' IRQ since the primary
handler is NULL (Siddharth Vadapalli)

- Handle IRQ request errors during root port and endpoint probe
(Siddharth Vadapalli)

TI J721E PCIe driver:

- Add DT 'ti,syscon-acspcie-proxy-ctrl' and driver support to enable
the ACSPCIE module to drive Refclk for the Endpoint (Siddharth
Vadapalli)

- Extract the cadence link setup from cdns_pcie_host_setup() so link
setup can be done separately during resume (Thomas Richard)

- Add T_PERST_CLK_US definition for the mandatory delay between
Refclk becoming stable and PERST# being deasserted (Thomas Richard)

- Add j721e suspend and resume support (Théo Lebrun)

TI Keystone PCIe controller driver:

- Fix NULL pointer checking when applying MRRS limitation quirk for
AM65x SR 1.0 Errata #i2037 (Dan Carpenter)

Xilinx NWL PCIe controller driver:

- Fix off-by-one error in INTx IRQ handler that caused INTx
interrupts to be lost or delivered as the wrong interrupt (Sean
Anderson)

- Rate-limit misc interrupt messages (Sean Anderson)

- Turn off the clock on probe failure and device removal (Sean
Anderson)

- Add DT binding and driver support for enabling/disabling PHYs (Sean
Anderson)

- Add PCIe phy bindings for the ZCU102 (Sean Anderson)

Xilinx XDMA PCIe controller driver:

- Add support for Xilinx QDMA Soft IP PCIe Root Port Bridge to DT
binding and xilinx-dma-pl driver (Thippeswamy Havalige)

Miscellaneous:

- Fix buffer overflow in kirin_pcie_parse_port() (Alexandra Diupina)

- Fix minor kerneldoc issues and typos (Bjorn Helgaas)

- Use PCI_DEVID() macro in aer_inject() instead of open-coding it
(Jinjie Ruan)

- Check pcie_find_root_port() return in x86 fixups to avoid NULL
pointer dereferences (Samasth Norway Ananda)

- Make pci_bus_type constant (Kunwu Chan)

- Remove unused declarations of __pci_pme_wakeup() and
pci_vpd_release() (Yue Haibing)

- Remove any leftover .*.cmd files with make clean (zhang jiao)

- Remove unused BILLION macro (zhang jiao)"

* tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (132 commits)
PCI: Fix typos
dt-bindings: PCI: qcom: Allow 'vddpe-3v3-supply' again
tools: PCI: Remove unused BILLION macro
tools: PCI: Remove .*.cmd files with make clean
PCI: Pass domain number to pci_bus_release_domain_nr() explicitly
PCI: dra7xx: Fix error handling when IRQ request fails in probe
PCI: dra7xx: Fix threaded IRQ request for "dra7xx-pcie-main" IRQ
PCI: qcom: Add RX lane margining settings for 16.0 GT/s
PCI: qcom: Add equalization settings for 16.0 GT/s
PCI: dwc: Always cache the maximum link speed value in dw_pcie::max_link_speed
PCI: dwc: Rename 'dw_pcie::link_gen' to 'dw_pcie::max_link_speed'
PCI: qcom-ep: Enable controller resources like PHY only after refclk is available
PCI: Mark Creative Labs EMU20k2 INTx masking as broken
dt-bindings: PCI: imx6q-pcie: Add reg-name "dbi2" and "atu" for i.MX8M PCIe Endpoint
dt-bindings: PCI: altera: msi: Convert to YAML
PCI: imx6: Add i.MX8Q PCIe Root Complex (RC) support
PCI: Rename CRS Completion Status to RRS
PCI: aardvark: Correct Configuration RRS checking
PCI: Wait for device readiness with Configuration RRS
PCI: brcmstb: Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings
...