- Drop xilinx-nwl updates of bridge bus number fields, since PCI core
  already does that (Thippeswamy Havalige)

- Update xilinx-nwl driver and ECAM size in devicetree example to allow up
  to 256 buses (Thippeswamy Havalige)

* pci/controller/xilinx-ecam:
  PCI: xilinx-nwl: Modify ECAM size to enable support for 256 buses
  PCI: xilinx-nwl: Rename the NWL_ECAM_VALUE_DEFAULT macro
  dt-bindings: PCI: xilinx-nwl: Modify ECAM size in the DT example
  PCI: xilinx-nwl: Remove redundant code that sets Type 1 header fields

- Fix space/tab whitespace issue (Xinghui Li)

* pci/controller/vmd:
  PCI: vmd: Fix inconsistent indentation in vmd_resume()

- Use PCIE_SPEED2MBS_ENC() macro in qcom host and endpoint to encode link
  speed instead of hard-coding the link speed in MBps (Manivannan
  Sadhasivam)

- Use Mbps_to_icc() (not MBps_to_icc()) in tegra194 instead of explicitly
  doing the bytes-to-bits conversion (Manivannan Sadhasivam)

* pci/controller/speed:
  PCI: tegra194: Use Mbps_to_icc() macro for setting icc speed
  PCI: qcom-ep: Use PCIE_SPEED2MBS_ENC() macro for encoding link speed
  PCI: qcom: Use PCIE_SPEED2MBS_ENC() macro for encoding link speed

- Add generic T_PVPERL macro for the required interval between power being
  stable and PERST# being inactive (Yoshihiro Shimoda)

- Factor out dw_pcie_link_set_max_link_width() (Yoshihiro Shimoda)

- Update PCI_EXP_LNKCAP_MLW so Link Capabilities shows the correct max link
  width (Yoshihiro Shimoda)

- Drop tegra194 PCI_EXP_LNKCAP_MLW setting since dw_pcie_setup() already
  does it (Yoshihiro Shimoda)

- Add dwc support for different dbi and dbi2 register offsets, to be used
  for R-Car Gen4 controllers (Yoshihiro Shimoda)

- Add EDMA_UNROLL capability flag for R-Car Gen4 controllers that don't
  correctly advertise unrolled mapping via their eDMA CTRL register
  (Yoshihiro Shimoda)

- Export dw_pcie_ep_exit() for use by the modular R-Car Gen4 driver
  (Yoshihiro Shimoda)

- Add .pre_init() and .deinit() hooks for use by R-Car Gen4 controllers
  (Yoshihiro Shimoda)

- Increase snps,dw-pcie DT reg and reg-names maxItems for R-Car Gen4
  controllers (Yoshihiro Shimoda)

- Add rcar-gen4-pci host and endpoint DT bindings and drivers (Yoshihiro
  Shimoda)

- Add Renesas R8A779F0 Device ID to pci_endpoint_test to allow testing on
  R-Car S4-8 (Yoshihiro Shimoda)

* pci/controller/rcar:
  misc: pci_endpoint_test: Add Device ID for R-Car S4-8 PCIe controller
  MAINTAINERS: Update PCI DRIVER FOR RENESAS R-CAR for R-Car Gen4
  PCI: rcar-gen4: Add endpoint mode support
  PCI: rcar-gen4: Add R-Car Gen4 PCIe controller support for host mode
  dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Endpoint
  dt-bindings: PCI: renesas: Add R-Car Gen4 PCIe Host
  dt-bindings: PCI: dwc: Update maxItems of reg and reg-names
  PCI: dwc: endpoint: Introduce .pre_init() and .deinit()
  PCI: dwc: Expose dw_pcie_write_dbi2() to module
  PCI: dwc: Expose dw_pcie_ep_exit() to module
  PCI: dwc: Add EDMA_UNROLL capability flag
  PCI: dwc: endpoint: Add multiple PFs support for dbi2
  PCI: tegra194: Drop PCI_EXP_LNKSTA_NLW setting
  PCI: dwc: Add missing PCI_EXP_LNKCAP_MLW handling
  PCI: dwc: Add dw_pcie_link_set_max_link_width()
  PCI: Add T_PVPERL macro

- Add qcom-ep callback to write DBI2 registers (Manivannan Sadhasivam)

* pci/controller/qcom-ep:
  PCI: qcom-ep: Add dedicated callback for writing to DBI2 registers

- Set 64-bit DMA mask for layerscape-ep (Guanhua Gao)

* pci/controller/layerscape:
  PCI: layerscape-ep: Set 64-bit DMA mask

- Annotate struct hv_dr_state with __counted_by to prepare for array access
  bounds checking (Kees Cook)

* pci/controller/hyperv:
  PCI: hv: Annotate struct hv_dr_state with __counted_by

- Drop unused struct cdns_plat_pcie.is_rc member (Li Chen)

* pci/controller/cadence:
  PCI: cadence: Drop unused member from struct cdns_plat_pcie

- Add a dwc .host_post_init() callback for configuration after downstream
  devices are scanned (Manivannan Sadhasivam)

- Enable ASPM for devices below qcom 1.9.0 host controllers (Manivannan
  Sadhasivam)

* pci/controller/aspm:
  PCI: qcom: Enable ASPM for platforms supporting 1.9.0 ops
  PCI: dwc: Add host_post_init() callback

- Add pci_is_vga() helper, which checks for both PCI_CLASS_DISPLAY_VGA and
  PCI_CLASS_NOT_DEFINED_VGA (which catches ancient devices built before
  Class Codes were defined) (Sui Jingfeng)

- Use the new pci_is_vga() to identify devices for the VGA arbiter, the
  sysfs "boot_vga" attribute, and the virtio and qxl drivers (SUi Jingfeng)

* pci/vga:
  drm/qxl: Use pci_is_vga() to identify VGA devices
  drm/virtio: Use pci_is_vga() to identify VGA devices
  PCI/sysfs: Enable 'boot_vga' attribute via pci_is_vga()
  PCI/VGA: Select VGA devices earlier
  PCI/VGA: Use pci_is_vga() to identify VGA devices
  PCI: Add pci_is_vga() helper

- Lengthen reset delay for VideoPropulsion Torrent QN16e card, which seems
  to require longer delay than spec requires (Lukas Wunner)

* pci/reset:
  PCI: Lengthen reset delay for VideoPropulsion Torrent QN16e card

- Protect driver's D3cold preference from being overwritten by user space
  via sysfs (Lukas Wunner)

- Avoid PME from D3hot/D3cold for AMD Rembrandt and Phoenix USB4 to fix
  wakeup by USB4-attached devices (Mario Limonciello)

* pci/pm:
  x86/PCI: Avoid PME from D3hot/D3cold for AMD Rembrandt and Phoenix USB4
  PCI/sysfs: Protect driver's D3cold preference from user space

- Move struct dev_pagemap (a flexible structure) to end of struct
  pci_p2pdma_pagemap to avoid overwriting things after dev_pagemap
  (Gustavo A. R.  Silva)

* pci/p2pdma:
  PCI/P2PDMA: Remove redundant goto
  PCI/P2PDMA: Fix undefined behavior bug in struct pci_p2pdma_pagemap

- Add driver for Ampere Altra Attention Indicators (D Scott Phillips)

* pci/hotplug:
  PCI: hotplug: Add Ampere Altra Attention Indicator extension driver
  PCI: acpiphp: Allow built-in drivers for Attention Indicators

- Add and use pci_get_base_class() to search for all PCI_BASE_CLASS_DISPLAY
  devices (Sui Jingfeng)

- Fix a vmd check for multi-function devices (Ilpo Järvinen)

- Add PCI_HEADER_TYPE_MFD and use it to replace literals (Ilpo Järvinen)

- Use acpi_evaluate_dsm_typed() instead of open-coding it (Andy Shevchenko)

- Keep .remove() and .probe() callbacks (previously marked __init) in case
  they're used via sysfs (Uwe Kleine-König)

* pci/enumeration:
  PCI: keystone: Don't discard .probe() callback
  PCI: keystone: Don't discard .remove() callback
  PCI: kirin: Don't discard .remove() callback
  PCI: exynos: Don't discard .remove() callback
  PCI/ACPI: Use acpi_evaluate_dsm_typed()
  PCI: Use PCI_HEADER_TYPE_* instead of literals
  PCI: Add PCI_HEADER_TYPE_MFD definition
  PCI: vmd: Correct PCI Header Type Register's multi-function check
  drm/radeon: Use pci_get_base_class() to reduce duplicated code
  drm/amdgpu: Use pci_get_base_class() to reduce duplicated code
  drm/nouveau: Use pci_get_base_class() to reduce duplicated code
  ALSA: hda: Use pci_get_base_class() to reduce duplicated code
  PCI: Add pci_get_base_class() helper

- Use IS_ERR_OR_NULL() helper function instead of open-coding it (Ruan
  Jinjie)

* pci/endpoint:
  PCI: endpoint: Use IS_ERR_OR_NULL() helper function

- Disable ATS for Intel IPU E2000 A- and B-stepping devices to avoid
  invalidation message endianness erratum (Bartosz Pawlowski)

* pci/ats:
  PCI: Disable ATS for specific Intel IPU E2000 devices
  PCI: Extract ATS disabling to a helper function

* pci/aspm:
  PCI/ASPM: Fix L1 substate handling in aspm_attr_store_common()
  Revert "PCI/ASPM: Disable only ASPM_STATE_L1 when driver, disables L1"
  PCI/ASPM: Convert printk() to pr_*() and add include
  PCI/ASPM: Remove unnecessary includes
  PCI/ASPM: Use FIELD_MAX() instead of literals
  PCI/ASPM: Use time constants
  PCI/ASPM: Return U32_MAX instead of bit magic construct
  PCI/ASPM: Use FIELD_GET/PREP() to access PCIe capability fields
  PCI: Add PCI_L1SS_CTL2 fields

- Factor out AER interrupt enable/disable (Kai-Heng Feng)

* pci/aer:
  PCI/AER: Factor out interrupt toggling into helpers

The DWC core driver exposes the write_dbi2() callback for writing to the
DBI2 registers in a vendor-specific way.

On the Qcom EP platforms, the DBI_CS2 bit in the ELBI region needs to be
asserted before writing to any DBI2 registers and deasserted once done.

So, let's implement the callback for the Qcom PCIe EP driver so that the
DBI2 writes are correctly handled in the hardware.

Without this callback, the DBI2 register writes like BAR size won't go
through and as a result, the default BAR size is set for all BARs.

[kwilczynski: commit log, renamed function to match the DWC convention]
Fixes: f55fee56

 ("PCI: qcom-ep: Add Qualcomm PCIe Endpoint controller driver")
Suggested-by: Serge Semin <fancer.lancer@gmail.com>
Link: https://lore.kernel.org/linux-pci/20231025130029.74693-2-manivannan.sadhasivam@linaro.org


Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Cc: stable@vger.kernel.org # 5.16+

The PCIe Root Port controller expects ECAM size to be set through software.

As such, update the value of the NWL_ECAM_VALUE_DEFAULT macro to 16 to
allow the controller to address the 256 MB ECAM region and, as such,
enable support for detecting up to 256 buses.

[kwilczynski: commit log]
Link: https://patchwork.kernel.org/project/linux-pci/patch/20231016051102.1180432-5-thippeswamy.havalige@amd.com/


Signed-off-by: Thippeswamy Havalige <thippeswamy.havalige@amd.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>

Rename the NWL_ECAM_VALUE_DEFAULT macro to NWL_ECAM_MAX_SIZE and drop
the no longer needed ecam_value variable from struct nwl_pcie.

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20231016051102.1180432-4-thippeswamy.havalige@amd.com


Signed-off-by: Thippeswamy Havalige <thippeswamy.havalige@amd.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>

Update ECAM size in the devicetree example to allow for the discovery of
up to 256 buses.

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20231016051102.1180432-3-thippeswamy.havalige@amd.com


Signed-off-by: Thippeswamy Havalige <thippeswamy.havalige@amd.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>

The PCI core already updates the primary, secondary and subordinate bus
number registers fields of the Type 1 header.

Thus, remove the redundant code from the nwl_pcie_bridge_init().

[kwilczynski: commit log]
Link: https://lore.kernel.org/linux-pci/20231016051102.1180432-2-thippeswamy.havalige@amd.com


Signed-off-by: Thippeswamy Havalige <thippeswamy.havalige@amd.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>

On Ampere Altra, PCIe hotplug is handled through ACPI. A side interface is
also present to request system firmware control of the hotplug Attention
Indicators. Add an ACPI PCI Hotplug companion driver to support Attention
Indicator control.

Link: https://lore.kernel.org/r/20230930002036.6491-2-scott@os.amperecomputing.com


Signed-off-by: D Scott Phillips <scott@os.amperecomputing.com>
[bhelgaas: mask domain to low 4 bits]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: "Rafael J. Wysocki" <rafael@kernel.org>

There are many places that enable and disable AER interrupt, so move
them into helpers.

Link: https://lore.kernel.org/r/20230512000014.118942-1-kai.heng.feng@canonical.com


Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Since the introduction of the attention callback in acpiphp, a non-zero
struct module *owner has been required in acpiphp_register_attention(). The
intent seemed to be that the core code could hold a refcount on the module
while invoking a callback.

This check accidentally precludes the possibility of attention callbacks to
built-in drivers.

Remove the check on `struct module *owner` in acpiphp_register_attention()
so attention callbacks can also be registered from built-in drivers.

Link: https://lore.kernel.org/r/20230930002036.6491-1-scott@os.amperecomputing.com


Signed-off-by: D Scott Phillips <scott@os.amperecomputing.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

aspm_attr_store_common(), which handles sysfs control of ASPM, has the same
problem as fb097dcd ("PCI/ASPM: Disable only ASPM_STATE_L1 when driver
disables L1"): disabling L1 adds only ASPM_L1 (but not any of the L1.x
substates) to the "aspm_disable" mask.

Enabling one substate, e.g., L1.1, via sysfs removes ASPM_L1 from the
disable mask.  Since disabling L1 via sysfs doesn't add any of the
substates to the disable mask, enabling L1.1 actually enables *all* the
substates.

In this scenario:

  - Write 0 to "l1_aspm" to disable L1
  - Write 1 to "l1_1_aspm" to enable L1.1

the intention is to disable L1 and all L1.x substates, then enable just
L1.1, but in fact, *all* L1.x substates are enabled.

Fix this by explicitly disabling all the L1.x substates when disabling L1.

Fixes: 72ea91af ("PCI/ASPM: Add sysfs attributes for controlling ASPM link states")
Link: https://lore.kernel.org/r/6ba7dd79-9cfe-4ed0-a002-d99cb842f361@gmail.com


Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
[bhelgaas: commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org

This reverts commit fb097dcd.

After fb097dcd ("PCI/ASPM: Disable only ASPM_STATE_L1 when driver
disables L1"), disabling L1 via pci_disable_link_state(PCIE_LINK_STATE_L1),
then enabling one substate, e.g., L1.1, via sysfs actually enables *all*
the substates.

For example, r8169 disables L1 because of hardware issues on a number of
systems, which implicitly disables the L1.1 and L1.2 substates.

On some systems, L1 and L1.1 work fine, but L1.2 causes missed rx packets.
Enabling L1.1 via the sysfs "aspm_l1_1" attribute unexpectedly enables L1.2
as well as L1.1.

After fb097dcd, pci_disable_link_state(PCIE_LINK_STATE_L1) adds only
ASPM_L1 (but not any of the L1.x substates) to the "aspm_disable" mask:

  --- Before fb097dcd
  +++ After fb097dcd

  # r8169 disables L1:
    pci_disable_link_state(PCIE_LINK_STATE_L1)
  -   disable |= ASPM_L1 | ASPM_L1_1 | ASPM_L1_2 | ...  # disable L1, L1.x
  +   disable |= ASPM_L1                                # disable L1 only

  # write "1" to sysfs "aspm_l1_1" attribute:
    l1_1_aspm
      aspm_attr_store_common(state = ASPM_L1_1)
        disable &= ~ASPM_L1_1              # enable L1.1
        if (state & (ASPM_L1_1 | ...))     # if enabling any substate
          disable &= ~ASPM_L1              # enable L1

  # final state:
  - disable = ASPM_L1_2 | ...              # L1, L1.1 enabled; L1.2 disabled
  + disable = 0                            # L1, L1.1, L1.2 all enabled

Enabling an L1.x substate removes the substate and L1 from the
"aspm_disable" mask.  After fb097dcd, the substates were not added to
the mask when disabling L1, so enabling one substate implicitly enables all
of them.

Revert fb097dcd so enabling one substate doesn't enable the others.

Link: https://lore.kernel.org/r/c75931ac-7208-4200-9ca1-821629cf5e28@gmail.com


Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
[bhelgaas: work through example in commit log]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: stable@vger.kernel.org

Remove redundant goto in pci_alloc_p2pmem().

Link: https://lore.kernel.org/r/20231023084050.55230-1-tstruk@gmail.com


Signed-off-by: Tadeusz Struk <tstruk@gmail.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Logan Gunthorpe <logang@deltatee.com>

Add Renesas R8A779F0 in pci_device_id table so that pci-epf-test
can be used for testing PCIe EP on R-Car S4-8.

Link: https://lore.kernel.org/linux-pci/20231018085631.1121289-16-yoshihiro.shimoda.uh@renesas.com


Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>

Update this entry for R-Car Gen4's source code.

Link: https://lore.kernel.org/linux-pci/20231018085631.1121289-15-yoshihiro.shimoda.uh@renesas.com


Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>

Add R-Car Gen4 PCIe controller for endpoint mode. This controller is based
on Synopsys DesignWare PCIe.

Link: https://lore.kernel.org/linux-pci/20231018085631.1121289-14-yoshihiro.shimoda.uh@renesas.com


Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>

Add R-Car Gen4 PCIe controller support for host mode.

This controller is based on Synopsys DesignWare PCIe. However, this
particular controller has a number of vendor-specific registers, and as
such, requires initialization code like mode setting and retraining and
so on.

Link: https://lore.kernel.org/linux-pci/20231018085631.1121289-13-yoshihiro.shimoda.uh@renesas.com


Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>

Document bindings for Renesas R-Car Gen4 and R-Car S4-8 (R8A779F0)
PCIe endpoint module.

Link: https://lore.kernel.org/linux-pci/20231018085631.1121289-12-yoshihiro.shimoda.uh@renesas.com


Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>

Document bindings for Renesas R-Car Gen4 and R-Car S4-8 (R8A779F0)
PCIe host module.

Link: https://lore.kernel.org/linux-pci/20231018085631.1121289-11-yoshihiro.shimoda.uh@renesas.com


Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>

Update maxItems of reg and reg-names on both host and endpoint
for supporting Renesas R-Car Gen4 PCIe controllers later.

Link: https://lore.kernel.org/linux-pci/20231018085631.1121289-10-yoshihiro.shimoda.uh@renesas.com


Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Manivannan Sadhasivam <mani@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>

Renesas R-Car Gen4 PCIe controllers require vendor-specific
initialization before .init().

To use dw->dbi and dw->num-lanes in the initialization code,
introduce .pre_init() into struct dw_pcie_ep_ops. While at it,
also introduce .deinit() to disable the controller by using
vendor-specific de-initialization.

Note that the ep_init in the struct dw_pcie_ep_ops should be
renamed to init later.

Link: https://lore.kernel.org/linux-pci/20231018085631.1121289-9-yoshihiro.shimoda.uh@renesas.com


Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>

Since no PCIe controller drivers call this, this change is not required
for now. But, Renesas R-Car Gen4 PCIe controller driver will call this
and if the controller driver is built as a kernel module, the following
build error happens:

  ERROR: modpost: "dw_pcie_write_dbi2" [drivers/pci/controller/dwc/pcie-rcar-gen4-host-drv.ko] undefined!

So, expose dw_pcie_write_dbi2() for it.

Link: https://lore.kernel.org/linux-pci/20230926122431.3974714-8-yoshihiro.shimoda.uh@renesas.com


Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>

Since no PCIe controller drivers call this, this change is not required
for now. But, Renesas R-Car Gen4 PCIe controller driver will call this
and if the controller driver is built as a kernel module, the following
build error happens:

  ERROR: modpost: "dw_pcie_ep_exit" [drivers/pci/controller/dwc/pcie-rcar-gen4-ep-drv.ko] undefined!

So, expose dw_pcie_ep_exit() for it.

Link: https://lore.kernel.org/linux-pci/20231018085631.1121289-8-yoshihiro.shimoda.uh@renesas.com


Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>