[PATCH v5 0/2] Add PCIe host driver support for Mediatek SoCs

[Ryder Lee]

Hi,

This patch series add Mediatek Gen2 PCIe host controller driver and
dt-binding document. It can be found on MT7623 series SoCs.

This driver was validated using Broadcom Tigon3 and Intel(R) 82575/82576
gigabit ethernet card.


Changes since v5:
- rebase to Linux 4.12-rc1.
- remove redundant module.h header and MODULE macros.

Changes since v4:
- move the per-port registers to the parent node.
- use a valid compatible for hifsys controller.
- use the 'sysirq' instead of 'gic' as a correct 'interrupt-parent' of the
  interrupt-map properties.

  'sysirq' is an interrupt-controller that could help us to reverse GIC SPIs polarity
  so that we could properly set irq type to level low without any extra properties.
  It was a mistake to select wrong interrupt-parent on the previous versions.
  Now, we could remove unnecessary interrupt properties entirely from binding.

Changes since v3:
- correct sub-nodes unit addresses.

Changes since v2:
- modify Kconfig to avoid kbuild test error on some architecture.
- change compatible string.
- revise binding document:
  add missing interrupt-names.
  remove the board dts example and drop 'status' properties.
  remove unnecessary descriptions bout standard PCI bus binding.

Changes since v1:
- add .suppress_bind_attrs.
- remove unnecessary *_valid_device() pattern.
- remove PCI_PROBE_ONLY.
- use the regular readl() instead of readl_relaxed().
- add .map_bus() and change to use pci_generic_config_read/pci_generic_config_write.
- revise dt-binding document and move nonstandard properties to root node.
- change compatible string.
- use interrupt-map property and replace mtk_pcie_map_irq() with of_irq_parse_and_map_pci().
- use the new pci_register_host_bridge() method instead of pci_scan_root_bus()*

Ryder Lee (2):
  PCI: mediatek: Add Mediatek PCIe host controller support
  dt-bindings: pcie: Add documentation for Mediatek PCIe

 .../bindings/pci/mediatek,mt7623-pcie.txt          | 130 +++++
 drivers/pci/host/Kconfig                           |  11 +
 drivers/pci/host/Makefile                          |   1 +
 drivers/pci/host/pcie-mediatek.c                   | 553 +++++++++++++++++++++
 4 files changed, 695 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/mediatek,mt7623-pcie.txt
 create mode 100644 drivers/pci/host/pcie-mediatek.c

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1.9.1