commit 64adde31c8e996a6db6f7a1a4131180e363aa9f2 upstream.

Currently, there is only a 1 ms sleep after asserting PERST.

Reading the datasheets for different endpoints, some require PERST to be
asserted for 10 ms in order for the endpoint to perform a reset, others
require it to be asserted for 50 ms.

Several SoCs using this driver uses PCIe Mini Card, where we don't know
what endpoint will be plugged in.

The PCI Express Card Electromechanical Specification r2.0, section
2.2, "PERST# Signal" specifies:

"On power up, the deassertion of PERST# is delayed 100 ms (TPVPERL) from
the power rails achieving specified operating limits."

Add a sleep of 100 ms before deasserting PERST, in order to ensure that
we are compliant with the spec.

Fixes: 82a823833f4e ("PCI: qcom: Add Qualcomm PCIe controller driver")
Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Cc: stable@vger.kernel.org # 4.5+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 4df591b20b80cb77920953812d894db259d85bd7 upstream.

Fix a use-after-free in hv_eject_device_work().

Fixes: 05f151a73ec2 ("PCI: hv: Fix a memory leak in hv_eject_device_work()")
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Pull PCI updates from Bjorn Helgaas:
 "Enumeration changes:

   - Add _HPX Type 3 settings support, which gives firmware more
     influence over device configuration (Alexandru Gagniuc)

   - Support fixed bus numbers from bridge Enhanced Allocation
     capabilities (Subbaraya Sundeep)

   - Add "external-facing" DT property to identify cases where we
     require IOMMU protection against untrusted devices (Jean-Philippe
     Brucker)

   - Enable PCIe services for host controller drivers that use managed
     host bridge alloc (Jean-Philippe Brucker)

   - Log PCIe port service messages with pci_dev, not the pcie_device
     (Frederick Lawler)

   - Convert pciehp from pciehp_debug module parameter to generic
     dynamic debug (Frederick Lawler)

  Peer-to-peer DMA:

   - Add whitelist of Root Complexes that support peer-to-peer DMA
     between Root Ports (Christian König)

  Native controller drivers:

   - Add PCI host bridge DMA ranges for bridges that can't DMA
     everywhere, e.g., iProc (Srinath Mannam)

   - Add Amazon Annapurna Labs PCIe host controller driver (Jonathan
     Chocron)

   - Fix Tegra MSI target allocation so DMA doesn't generate unwanted
     MSIs (Vidya Sagar)

   - Fix of_node reference leaks (Wen Yang)

   - Fix Hyper-V module unload & device removal issues (Dexuan Cui)

   - Cleanup R-Car driver (Marek Vasut)

   - Cleanup Keystone driver (Kishon Vijay Abraham I)

   - Cleanup i.MX6 driver (Andrey Smirnov)

  Significant bug fixes:

   - Reset Lenovo ThinkPad P50 GPU so nouveau works after reboot (Lyude
     Paul)

   - Fix Switchtec firmware update performance issue (Wesley Sheng)

   - Work around Pericom switch link retraining erratum (Stefan Mätje)"

* tag 'pci-v5.2-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (141 commits)
  MAINTAINERS: Add Karthikeyan Mitran and Hou Zhiqiang for Mobiveil PCI
  PCI: pciehp: Remove pointless MY_NAME definition
  PCI: pciehp: Remove pointless PCIE_MODULE_NAME definition
  PCI: pciehp: Remove unused dbg/err/info/warn() wrappers
  PCI: pciehp: Log messages with pci_dev, not pcie_device
  PCI: pciehp: Replace pciehp_debug module param with dyndbg
  PCI: pciehp: Remove pciehp_debug uses
  PCI/AER: Log messages with pci_dev, not pcie_device
  PCI/DPC: Log messages with pci_dev, not pcie_device
  PCI/PME: Replace dev_printk(KERN_DEBUG) with dev_info()
  PCI/AER: Replace dev_printk(KERN_DEBUG) with dev_info()
  PCI: Replace dev_printk(KERN_DEBUG) with dev_info(), etc
  PCI: Replace printk(KERN_INFO) with pr_info(), etc
  PCI: Use dev_printk() when possible
  PCI: Cleanup setup-bus.c comments and whitespace
  PCI: imx6: Allow asynchronous probing
  PCI: dwc: Save root bus for driver remove hooks
  PCI: dwc: Use devm_pci_alloc_host_bridge() to simplify code
  PCI: dwc: Free MSI in dw_pcie_host_init() error path
  PCI: dwc: Free MSI IRQ page in dw_pcie_free_msi()
  ...

  - Cleanup PCI register definitions, typos, etc (Bjorn Helgaas)

  - Remove unnecessary use of user-space types in CPER (Bjorn Helgaas)

  - Cleanup setup-bus.c comments & whitespace (Nicholas Johnson)

* pci/trivial:
  PCI: Cleanup setup-bus.c comments and whitespace
  CPER: Remove unnecessary use of user-space types
  CPER: Add UEFI spec references
  PCI: Fix comment typos
  PCI: Cleanup register definition width and whitespace

# Conflicts:
#	drivers/pci/pci.c
#	drivers/pci/setup-bus.c

  - Add list of legal DMA address ranges to PCI host bridge (Srinath
    Mannam)

  - Reserve inaccessible DMA ranges so IOMMU doesn't allocate them (Srinath
    Mannam)

  - Parse iProc DT dma-ranges to learn what PCI devices can reach via DMA
    (Srinath Mannam)

* pci/iova-dma-ranges:
  PCI: iproc: Add sorted dma ranges resource entries to host bridge
  iommu/dma: Reserve IOVA for PCIe inaccessible DMA address
  PCI: Add dma_ranges window list

# Conflicts:
#	drivers/pci/probe.c

  - Exit pcitest with error code when test fails (Jean-Jacques Hiblot)

  - Fix leaked of_node references in dra7xx, uniphier, layerscape,
    rockchip, aardvark, iproc, mediatek, rpadlpar (Wen Yang)

  - Fix pcitest "help" option parsing (Kishon Vijay Abraham I)

  - Fix Makefile bug that inadvertently removes pcitest.sh (Kishon Vijay
    Abraham I)

  - Check for alloc_workqueue() failure in endpoint test driver (Kangjie
    Lu)

* remotes/lorenzo/pci/misc:
  PCI: endpoint: Fix a potential NULL pointer dereference
  tools: PCI: Handle pcitest.sh independently from pcitest
  tools: PCI: Add 'h' in optstring of getopt()
  PCI: mediatek: Fix a leaked reference by adding missing of_node_put()
  PCI: iproc: Fix a leaked reference by adding missing of_node_put()
  PCI: aardvark: Fix a leaked reference by adding missing of_node_put()
  PCI: rockchip: Fix a leaked reference by adding missing of_node_put()
  PCI: dwc: layerscape: Fix a leaked reference by adding missing of_node_put()
  PCI: uniphier: Fix a leaked reference by adding missing of_node_put()
  PCI: dwc: pci-dra7xx: Fix a leaked reference by adding missing of_node_put()
  tools: PCI: Exit with error code when test fails

  - Check for __get_free_pages() failure in xilinx (Kangjie Lu)

* remotes/lorenzo/pci/xilinx:
  PCI: xilinx: Check for __get_free_pages() failure

  - Use DMA-API to get tegra MSI address to prevent device DMA from
    generating unwanted MSIs (Vidya Sagar)

* remotes/lorenzo/pci/tegra:
  PCI: tegra: Use the DMA-API to get the MSI address

  - Fix rockchip bitwise operations that overflow type (Colin Ian King)

* remotes/lorenzo/pci/rockchip:
  PCI: rockchip: Fix rockchip_pcie_ep_assert_intx() bitwise operations

  - Use BIT() when appropriate in rcar (Marek Vasut)

  - Use u32 to match rcar hardware register widths (Marek Vasut)

  - Use BITS_PER_BYTE when appropriate in rcar (Marek Vasut)

  - Remove unnecessary casts in rcar (Marek Vasut)

  - Fix 64-bit MSI target addresses in rcar (Marek Vasut)

  - Check for __get_free_pages() failure in rcar (Kangjie Lu)

  - Fix shadowed rcar "irq" variable (Wolfram Sang)

* remotes/lorenzo/pci/rcar:
  PCI: rcar: Do not shadow the 'irq' variable
  PCI: rcar: Fix a potential NULL pointer dereference
  PCI: rcar: Fix 64bit MSI message address handling
  PCI: rcar: Clean up debug messages
  PCI: rcar: Replace (8 * n) with (BITS_PER_BYTE * n)
  PCI: rcar: Replace various variable types with unsigned ones for register values
  PCI: rcar: Replace unsigned long with u32/unsigned int in register accessors
  PCI: rcar: Clean up remaining macros defining bits

# Conflicts:
#	drivers/pci/controller/pcie-rcar.c