Merge tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:
 "Enumeration:

   - Program MPS for RCiEP devices (Ashok Raj)

   - Fix pci_register_host_bridge() device_register() error handling
     (Rob Herring)

   - Fix pci_host_bridge struct device release/free handling (Rob
     Herring)

  Resource management:

   - Allow resizing BARs for devices on root bus (Ard Biesheuvel)

  Power management:

   - Reduce Thunderbolt resume time by working around devices that don't
     support DLL Link Active reporting (Mika Westerberg)

   - Work around a Pericom USB controller OHCI/EHCI PME# defect
     (Kai-Heng Feng)

  Virtualization:

   - Add ACS quirk for Intel Root Complex Integrated Endpoints (Ashok
     Raj)

   - Avoid FLR for AMD Starship USB 3.0 (Kevin Buettner)

   - Avoid FLR for AMD Matisse HD Audio & USB 3.0 (Marcos Scriven)

  Error handling:

   - Use only _OSC (not HEST FIRMWARE_FIRST) to determine AER ownership
     (Alexandru Gagniuc, Kuppuswamy Sathyanarayanan)

   - Reduce verbosity by logging only ACPI_NOTIFY_DISCONNECT_RECOVER
     events (Kuppuswamy Sathyanarayanan)

   - Don't enable AER by default in Kconfig (Bjorn Helgaas)

  Peer-to-peer DMA:

   - Add AMD Zen Raven and Renoir Root Ports to whitelist (Alex Deucher)

  ASPM:

   - Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges (Kai-Heng Feng)

  Endpoint framework:

   - Fix DMA channel release in test (Kunihiko Hayashi)

   - Add page size as argument to pci_epc_mem_init() (Lad Prabhakar)

   - Add support to handle multiple base for mapping outbound memory
     (Lad Prabhakar)

  Generic host bridge driver:

   - Support building as module (Rob Herring)

   - Eliminate pci_host_common_probe wrappers (Rob Herring)

  Amlogic Meson PCIe controller driver:

   - Don't use FAST_LINK_MODE to set up link (Marc Zyngier)

  Broadcom STB PCIe controller driver:

   - Disable ASPM L0s if 'aspm-no-l0s' in DT (Jim Quinlan)

   - Fix clk_put() error (Jim Quinlan)

   - Fix window register offset (Jim Quinlan)

   - Assert fundamental reset on initialization (Nicolas Saenz Julienne)

   - Add notify xHCI reset property (Nicolas Saenz Julienne)

   - Add init routine for Raspberry Pi 4 VL805 USB controller (Nicolas
     Saenz Julienne)

   - Sync with Raspberry Pi 4 firmware for VL805 initialization (Nicolas
     Saenz Julienne)

  Cadence PCIe controller driver:

   - Remove "cdns,max-outbound-regions" DT property (replaced by
     "ranges") (Kishon Vijay Abraham I)

   - Read 32-bit (not 16-bit) Vendor ID/Device ID property from DT
     (Kishon Vijay Abraham I)

  Marvell Aardvark PCIe controller driver:

   - Improve link training (Marek Behún)

   - Add PHY support (Marek Behún)

   - Add "phys", "max-link-speed", "reset-gpios" to dt-binding (Marek
     Behún)

   - Train link immediately after enabling training to work around
     detection issues with some cards (Pali Rohár)

   - Issue PERST via GPIO to work around detection issues (Pali Rohár)

   - Don't blindly enable ASPM L0s (Pali Rohár)

   - Replace custom macros by standard linux/pci_regs.h macros (Pali
     Rohár)

  Microsoft Hyper-V host bridge driver:

   - Fix probe failure path to release resource (Wei Hu)

   - Retry PCI bus D0 entry on invalid device state for kdump (Wei Hu)

  Renesas R-Car PCIe controller driver:

   - Fix incorrect programming of OB windows (Andrew Murray)

   - Add suspend/resume (Kazufumi Ikeda)

   - Rename pcie-rcar.c to pcie-rcar-host.c (Lad Prabhakar)

   - Add endpoint controller driver (Lad Prabhakar)

   - Fix PCIEPAMR mask calculation (Lad Prabhakar)

   - Add r8a77961 to DT binding (Yoshihiro Shimoda)

  Socionext UniPhier Pro5 controller driver:

   - Add endpoint controller driver (Kunihiko Hayashi)

  Synopsys DesignWare PCIe controller driver:

   - Program outbound ATU upper limit register (Alan Mikhak)

   - Fix inner MSI IRQ domain registration (Marc Zyngier)

  Miscellaneous:

   - Check for platform_get_irq() failure consistently (negative return
     means failure) (Aman Sharma)

   - Fix several runtime PM get/put imbalances (Dinghao Liu)

   - Use flexible-array and struct_size() helpers for code cleanup
     (Gustavo A. R. Silva)

   - Update & fix issues in bridge emulation of PCIe registers (Jon
     Derrick)

   - Add macros for bridge window names (PCI_BRIDGE_IO_WINDOW, etc)
     (Krzysztof Wilczyński)

   - Work around Intel PCH MROMs that have invalid BARs (Xiaochun Lee)"

* tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (100 commits)
  PCI: uniphier: Add Socionext UniPhier Pro5 PCIe endpoint controller driver
  PCI: Add ACS quirk for Intel Root Complex Integrated Endpoints
  PCI/DPC: Print IRQ number used by port
  PCI/AER: Use "aer" variable for capability offset
  PCI/AER: Remove redundant dev->aer_cap checks
  PCI/AER: Remove redundant pci_is_pcie() checks
  PCI/AER: Remove HEST/FIRMWARE_FIRST parsing for AER ownership
  PCI: tegra: Fix runtime PM imbalance on error
  PCI: vmd: Filter resource type bits from shadow register
  PCI: tegra194: Fix runtime PM imbalance on error
  dt-bindings: PCI: Add UniPhier PCIe endpoint controller description
  PCI: hv: Use struct_size() helper
  PCI: Rename _DSM constants to align with spec
  PCI: Avoid FLR for AMD Starship USB 3.0
  PCI: Avoid FLR for AMD Matisse HD Audio & USB 3.0
  x86/PCI: Drop unused xen_register_pirq() gsi_override parameter
  PCI: dwc: Use private data pointer of "struct irq_domain" to get pcie_port
  PCI: amlogic: meson: Don't use FAST_LINK_MODE to set up link
  PCI: dwc: Fix inner MSI IRQ domain registration
  PCI: dwc: pci-dra7xx: Use devm_platform_ioremap_resource_byname()
  ...

97 files changed, 3682 insertions, 2006 deletions

diff --git a/Documentation/PCI/endpoint/pci-endpoint.rst b/Documentation/PCI/endpoint/pci-endpoint.rst
index 0e2311b5617b..7536be445db8 100644
--- a/Documentation/PCI/endpoint/pci-endpoint.rst
+++ b/Documentation/PCI/endpoint/pci-endpoint.rst
@@ -78,8 +78,8 @@ by the PCI controller driver.
    Cleanup the pci_epc_mem structure allocated during pci_epc_mem_init().
 
 
-APIs for the PCI Endpoint Function Driver
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+EPC APIs for the PCI Endpoint Function Driver
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 This section lists the APIs that the PCI Endpoint core provides to be used
 by the PCI endpoint function driver.
@@ -117,8 +117,8 @@ by the PCI endpoint function driver.
    The PCI endpoint function driver should use pci_epc_mem_free_addr() to
    free the memory space allocated using pci_epc_mem_alloc_addr().
 
-Other APIs
-~~~~~~~~~~
+Other EPC APIs
+~~~~~~~~~~~~~~
 
 There are other APIs provided by the EPC library. These are used for binding
 the EPF device with EPC device. pci-ep-cfs.c can be used as reference for
@@ -160,8 +160,8 @@ PCI Endpoint Function(EPF) Library
 The EPF library provides APIs to be used by the function driver and the EPC
 library to provide endpoint mode functionality.
 
-APIs for the PCI Endpoint Function Driver
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+EPF APIs for the PCI Endpoint Function Driver
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 This section lists the APIs that the PCI Endpoint core provides to be used
 by the PCI endpoint function driver.
@@ -204,8 +204,8 @@ by the PCI endpoint controller library.
    The PCI endpoint controller library invokes pci_epf_linkup() when the
    EPC device has established the connection to the host.
 
-Other APIs
-~~~~~~~~~~
+Other EPF APIs
+~~~~~~~~~~~~~~
 
 There are other APIs provided by the EPF library. These are used to notify
 the function driver when the EPF device is bound to the EPC device.
diff --git a/Documentation/devicetree/bindings/pci/aardvark-pci.txt b/Documentation/devicetree/bindings/pci/aardvark-pci.txt
index 310ef7145c47..2b8ca920a7fa 100644
--- a/Documentation/devicetree/bindings/pci/aardvark-pci.txt
+++ b/Documentation/devicetree/bindings/pci/aardvark-pci.txt
@@ -19,6 +19,9 @@ contain the following properties:
  - interrupt-map-mask and interrupt-map: standard PCI properties to
    define the mapping of the PCIe interface to interrupt numbers.
  - bus-range: PCI bus numbers covered
+ - phys: the PCIe PHY handle
+ - max-link-speed: see pci.txt
+ - reset-gpios: see pci.txt
 
 In addition, the Device Tree describing an Aardvark PCIe controller
 must include a sub-node that describes the legacy interrupt controller
@@ -48,6 +51,7 @@ Example:
 				<0 0 0 2 &pcie_intc 1>,
 				<0 0 0 3 &pcie_intc 2>,
 				<0 0 0 4 &pcie_intc 3>;
+		phys = <&comphy1 0>;
 		pcie_intc: interrupt-controller {
 			interrupt-controller;
 			#interrupt-cells = <1>;
diff --git a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
index 77d3e81a437b..8680a0f86c5a 100644
--- a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
@@ -56,6 +56,8 @@ properties:
     description: Indicates usage of spread-spectrum clocking.
     type: boolean
 
+  aspm-no-l0s: true
+
 required:
   - reg
   - dma-ranges
diff --git a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml
index 2996f8d4777c..50ce5d79d2c7 100644
--- a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml
+++ b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-ep.yaml
@@ -10,7 +10,7 @@ maintainers:
   - Tom Joseph <tjoseph@cadence.com>
 
 allOf:
-  - $ref: "cdns-pcie.yaml#"
+  - $ref: "cdns-pcie-ep.yaml#"
   - $ref: "pci-ep.yaml#"
 
 properties:
diff --git a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml
index cabbe46ff578..84a8f095d031 100644
--- a/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml
+++ b/Documentation/devicetree/bindings/pci/cdns,cdns-pcie-host.yaml
@@ -45,8 +45,6 @@ examples:
             #size-cells = <2>;
             bus-range = <0x0 0xff>;
             linux,pci-domain = <0>;
-            cdns,max-outbound-regions = <16>;
-            cdns,no-bar-match-nbits = <32>;
             vendor-id = <0x17cd>;
             device-id = <0x0200>;
 
@@ -57,6 +55,7 @@ examples:
 
             ranges = <0x02000000 0x0 0x42000000  0x0 0x42000000  0x0 0x1000000>,
                      <0x01000000 0x0 0x43000000  0x0 0x43000000  0x0 0x0010000>;
+            dma-ranges = <0x02000000 0x0 0x0 0x0 0x0 0x1 0x00000000>;
 
             #interrupt-cells = <0x1>;
 
diff --git a/Documentation/devicetree/bindings/pci/cdns-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/cdns-pcie-ep.yaml
new file mode 100644
index 000000000000..6150a7a7bdbf
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/cdns-pcie-ep.yaml
@@ -0,0 +1,25 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR B