On Sun, May 21, 2017 at 11:42:24AM +0800, Ryder Lee wrote:

Add support for the Mediatek PCIe Gen2 controller which can
be found on MT7623 series SoCs.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
---
 drivers/pci/host/Kconfig         |  11 +
 drivers/pci/host/Makefile        |   1 +
 drivers/pci/host/pcie-mediatek.c | 553 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 565 insertions(+)
 create mode 100644 drivers/pci/host/pcie-mediatek.c
...

+static int mtk_pcie_register_host(struct pci_host_bridge *host)
+{
+	struct mtk_pcie *pcie = pci_host_bridge_priv(host);
+	struct pci_bus *child;
+	int err;
+
+	pci_add_flags(PCI_REASSIGN_ALL_RSRC | PCI_REASSIGN_ALL_BUS);

Do you really need the PCI_REASSIGN_ALL_RSRC and PCI_REASSIGN_ALL_BUS
flags?  I'd like to get rid of them because we should automatically
assign resources if the firmware hasn't done it.

Bjorn