Merge branch 'pci/controller/dwc-tegra194'

- Poll less aggressively and non-atomically for PME_TO_Ack during
  transition to L2 (Vidya Sagar)

- Increase LTSSM poll time on surprise link down (Manikanta Maddireddy)

- Disable LTSSM after transition to Detect on surprise link down to stop
  toggling between Polling and Detect (Manikanta Maddireddy)

- Don't force the device into the D0 state before L2 when suspending or
  shutting down the controller (Vidya Sagar)

- Disable PERST# IRQ only in Endpoint mode because it's not registered in
  Root Port mode (Manikanta Maddireddy)

- Handle 'nvidia,refclk-select' as optional (Vidya Sagar)

- Disable direct speed change in Endpoint mode so link speed change is
  controlled by the host (Vidya Sagar)

- Set LTR values before link up to avoid bogus LTR messages with 0 latency
  (Vidya Sagar)

- Allow system suspend when the Endpoint link is down (Vidya Sagar)

- During remove, free resources allocated during Endpoint .probe() (Vidya
  Sagar)

- Use DWC IP core version, not Tegra custom values, to avoid DWC core
  version check warnings (Manikanta Maddireddy)

- Apply ECRC workaround to devices based on DesignWare 5.00a as well
  as 4.90a (Manikanta Maddireddy)

- Disable PM Substate L1.2 in Endpoint mode to work around Tegra234 erratum
  (Vidya Sagar)

- Delay post-PERST# cleanup until core is powered on to avoid CBB timeout
  (Manikanta Maddireddy)

- Assert CLKREQ# so switches that forward it to their downstream side can
  bring up those links successfully (Vidya Sagar)

- Calibrate pipe to UPHY for Endpoint mode to reset stale PLL state from
  any previous bad link state (Vidya Sagar)

- Remove IRQF_ONESHOT flag from Endpoint interrupt registration so DMA
  driver and Endpoint controller driver can share the interrupt line (Vidya
  Sagar)

- Enable DMA interrupt to support DMA in both Root Port and Endpoint modes
  (Vidya Sagar)

- Enable hardware link retraining after link goes down in Endpoint mode
  (Vidya Sagar)

- Add DT binding and driver support for core clock monitoring (Vidya Sagar)

* pci/controller/dwc-tegra194:
  PCI: tegra194: Add core monitor clock support
  dt-bindings: PCI: tegra194: Add monitor clock support
  PCI: tegra194: Enable hardware hot reset mode in Endpoint mode
  PCI: tegra194: Enable DMA interrupt
  PCI: tegra194: Remove IRQF_ONESHOT flag during Endpoint interrupt registration
  PCI: tegra194: Calibrate pipe to UPHY for Endpoint mode
  PCI: tegra194: Assert CLKREQ# explicitly by default
  PCI: tegra194: Fix CBB timeout caused by DBI access before core power-on
  PCI: tegra194: Disable L1.2 capability of Tegra234 EP
  PCI: dwc: Apply ECRC workaround to DesignWare 5.00a as well
  PCI: tegra194: Use DWC IP core version
  PCI: tegra194: Free up Endpoint resources during remove()
  PCI: tegra194: Allow system suspend when the Endpoint link is not up
  PCI: tegra194: Set LTR message request before PCIe link up in Endpoint mode
  PCI: tegra194: Disable direct speed change for Endpoint mode
  PCI: tegra194: Use devm_gpiod_get_optional() to parse "nvidia,refclk-select"
  PCI: tegra194: Disable PERST# IRQ only in Endpoint mode
  PCI: tegra194: Don't force the device into the D0 state before L2
  PCI: tegra194: Disable LTSSM after transition to Detect on surprise link down
  PCI: tegra194: Increase LTSSM poll time on surprise link down
  PCI: tegra194: Fix polling delay for L2 state

diff --cc drivers/pci/controller/dwc/pcie-designware.c
Simple merge

diff --cc drivers/pci/controller/dwc/pcie-designware.h
Simple merge

diff --cc drivers/pci/controller/dwc/pcie-tegra194.c
Simple merge