Merge tag 'pci-v4.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

 - add enhanced Downstream Port Containment support, which prints more
   details about Root Port Programmed I/O errors (Dongdong Liu)

 - add Layerscape ls1088a and ls2088a support (Hou Zhiqiang)

 - add MediaTek MT2712 and MT7622 support (Ryder Lee)

 - add MediaTek MT2712 and MT7622 MSI support (Honghui Zhang)

 - add Qualcom IPQ8074 support (Varadarajan Narayanan)

 - add R-Car r8a7743/5 device tree support (Biju Das)

 - add Rockchip per-lane PHY support for better power management (Shawn
   Lin)

 - fix IRQ mapping for hot-added devices by replacing the
   pci_fixup_irqs() boot-time design with a host bridge hook called at
   probe-time (Lorenzo Pieralisi, Matthew Minter)

 - fix race when enabling two devices that results in upstream bridge
   not being enabled correctly (Srinath Mannam)

 - fix pciehp power fault infinite loop (Keith Busch)

 - fix SHPC bridge MSI hotplug events by enabling bus mastering
   (Aleksandr Bezzubikov)

 - fix a VFIO issue by correcting PCIe capability sizes (Alex
   Williamson)

 - fix an INTD issue on Xilinx and possibly other drivers by unifying
   INTx IRQ domain support (Paul Burton)

 - avoid IOMMU stalls by marking AMD Stoney GPU ATS as broken (Joerg
   Roedel)

 - allow APM X-Gene device assignment to guests by adding an ACS quirk
   (Feng Kan)

 - fix driver crashes by disabling Extended Tags on Broadcom HT2100
   (Extended Tags support is required for PCIe Receivers but not
   Requesters, and we now enable them by default when Requesters support
   them) (Sinan Kaya)

 - fix MSIs for devices that use phantom RIDs for DMA by assuming MSIs
   use the real Requester ID (not a phantom RID) (Robin Murphy)

 - prevent assignment of Intel VMD children to guests (which may be
   supported eventually, but isn't yet) by not associating an IOMMU with
   them (Jon Derrick)

 - fix Intel VMD suspend/resume by releasing IRQs on suspend (Scott
   Bauer)

 - fix a Function-Level Reset issue with Intel 750 NVMe by waiting
   longer (up to 60sec instead of 1sec) for device to become ready
   (Sinan Kaya)

 - fix a Function-Level Reset issue on iProc Stingray by working around
   hardware defects in the CRS implementation (Oza Pawandeep)

 - fix an issue with Intel NVMe P3700 after an iProc reset by adding a
   delay during shutdown (Oza Pawandeep)

 - fix a Microsoft Hyper-V lockdep issue by polling instead of blocking
   in compose_msi_msg() (Stephen Hemminger)

 - fix a wireless LAN driver timeout by clearing DesignWare MSI
   interrupt status after it is handled, not before (Faiz Abbas)

 - fix DesignWare ATU enable checking (Jisheng Zhang)

 - reduce Layerscape dependencies on the bootloader by doing more
   initialization in the driver (Hou Zhiqiang)

 - improve Intel VMD performance allowing allocation of more IRQ vectors
   than present CPUs (Keith Busch)

 - improve endpoint framework support for initial DMA mask, different
   BAR sizes, configurable page sizes, MSI, test driver, etc (Kishon
   Vijay Abraham I, Stan Drozd)

 - rework CRS support to add periodic messages while we poll during
   enumeration and after Function-Level Reset and prepare for possible
   other uses of CRS (Sinan Kaya)

 - clean up Root Port AER handling by removing unnecessary code and
   moving error handler methods to struct pcie_port_service_driver
   (Christoph Hellwig)

 - clean up error handling paths in various drivers (Bjorn Andersson,
   Fabio Estevam, Gustavo A. R. Silva, Harunobu Kurokawa, Jeffy Chen,
   Lorenzo Pieralisi, Sergei Shtylyov)

 - clean up SR-IOV resource handling by disabling VF decoding before
   updating the corresponding resource structs (Gavin Shan)

 - clean up DesignWare-based drivers by unifying quirks to update Class
   Code and Interrupt Pin and related handling of write-protected
   registers (Hou Zhiqiang)

 - clean up by adding empty generic pcibios_align_resource() and
   pcibios_fixup_bus() and removing empty arch-specific implementations
   (Palmer Dabbelt)

 - request exclusive reset control for several drivers to allow cleanup
   elsewhere (Philipp Zabel)

 - constify various structures (Arvind Yadav, Bhumika Goyal)

 - convert from full_name() to %pOF (Rob Herring)

 - remove unused variables from iProc, HiSi, Altera, Keystone (Shawn
   Lin)

* tag 'pci-v4.14-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (170 commits)
  PCI: xgene: Clean up whitespace
  PCI: xgene: Define XGENE_PCI_EXP_CAP and use generic PCI_EXP_RTCTL offset
  PCI: xgene: Fix platform_get_irq() error handling
  PCI: xilinx-nwl: Fix platform_get_irq() error handling
  PCI: rockchip: Fix platform_get_irq() error handling
  PCI: altera: Fix platform_get_irq() error handling
  PCI: spear13xx: Fix platform_get_irq() error handling
  PCI: artpec6: Fix platform_get_irq() error handling
  PCI: armada8k: Fix platform_get_irq() error handling
  PCI: dra7xx: Fix platform_get_irq() error handling
  PCI: exynos: Fix platform_get_irq() error handling
  PCI: iproc: Clean up whitespace
  PCI: iproc: Rename PCI_EXP_CAP to IPROC_PCI_EXP_CAP
  PCI: iproc: Add 500ms delay during device shutdown
  PCI: Fix typos and whitespace errors
  PCI: Remove unused "res" variable from pci_resource_io()
  PCI: Correct kernel-doc of pci_vpd_srdt_size(), pci_vpd_srdt_tag()
  PCI/AER: Reformat AER register definitions
  iommu/vt-d: Prevent VMD child devices from being remapping targets
  x86/PCI: Use is_vmd() rather than relying on the domain number
  ...

25 files changed, 416 insertions, 214 deletions

diff --git a/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt b/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt
index 35a465362408..b9165b72473c 100644
--- a/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt
+++ b/Documentation/devicetree/bindings/pci/83xx-512x-pci.txt
@@ -1,11 +1,11 @@
 * Freescale 83xx and 512x PCI bridges
 
-Freescale 83xx and 512x SOCs include the same pci bridge core.
+Freescale 83xx and 512x SOCs include the same PCI bridge core.
 
 83xx/512x specific notes:
 - reg: should contain two address length tuples
-    The first is for the internal pci bridge registers
-    The second is for the pci config space access registers
+    The first is for the internal PCI bridge registers
+    The second is for the PCI config space access registers
 
 Example (MPC8313ERDB)
 	pci0: pci@e0008500 {
diff --git a/Documentation/devicetree/bindings/pci/altera-pcie.txt b/Documentation/devicetree/bindings/pci/altera-pcie.txt
index 2951a6a50704..495880193adc 100644
--- a/Documentation/devicetree/bindings/pci/altera-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/altera-pcie.txt
@@ -7,21 +7,21 @@ Required properties:
 		"Txs": TX slave port region
 		"Cra": Control register access region
 - interrupt-parent:	interrupt source phandle.
-- interrupts:	specifies the interrupt source of the parent interrupt controller.
-		The format of the interrupt specifier depends on the parent interrupt
-		controller.
+- interrupts:	specifies the interrupt source of the parent interrupt
+		controller.  The format of the interrupt specifier depends
+		on the parent interrupt controller.
 - device_type:	must be "pci"
 - #address-cells:	set to <3>
-- #size-cells:	set to <2>
+- #size-cells:		set to <2>
 - #interrupt-cells:	set to <1>
-- ranges:		describes the translation of addresses for root ports and standard
-		PCI regions.
+- ranges:	describes the translation of addresses for root ports and
+		standard PCI regions.
 - interrupt-map-mask and interrupt-map: standard PCI properties to define the
 		mapping of the PCIe interface to interrupt numbers.
 
 Optional properties:
-- msi-parent:	Link to the hardware entity that serves as the MSI controller for this PCIe
-		controller.
+- msi-parent:	Link to the hardware entity that serves as the MSI controller
+		for this PCIe controller.
 - bus-range:	PCI bus numbers covered
 
 Example
@@ -45,5 +45,5 @@ Example
 			            <0 0 0 3 &pcie_0 3>,
 			            <0 0 0 4 &pcie_0 4>;
 		ranges = <0x82000000 0x00000000 0x00000000 0xc0000000 0x00000000 0x10000000
-			    0x82000000 0x00000000 0x10000000 0xd0000000 0x00000000 0x10000000>;
+			  0x82000000 0x00000000 0x10000000 0xd0000000 0x00000000 0x10000000>;
 	};
diff --git a/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt b/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt
index 5ecaea1e6eee..4e4aee4439ea 100644
--- a/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/axis,artpec6-pcie.txt
@@ -6,7 +6,7 @@ and thus inherits all the common properties defined in designware-pcie.txt.
 Required properties:
 - compatible: "axis,artpec6-pcie", "snps,dw-pcie"
 - reg: base addresses and lengths of the PCIe controller (DBI),
-	the phy controller, and configuration address space.
+	the PHY controller, and configuration address space.
 - reg-names: Must include the following entries:
 	- "dbi"
 	- "phy"
diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt
index b2480dd38c11..1da7ade3183c 100644
--- a/Documentation/devicetree/bindings/pci/designware-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt
@@ -1,4 +1,4 @@
-* Synopsys Designware PCIe interface
+* Synopsys DesignWare PCIe interface
 
 Required properties:
 - compatible: should contain "snps,dw-pcie" to identify the core.
@@ -17,29 +17,27 @@ RC mode:
 	properties to define the mapping of the PCIe interface to interrupt
 	numbers.
 EP mode:
-- num-ib-windows: number of inbound address translation
-        windows
-- num-ob-windows: number of outbound address translation
-        windows
+- num-ib-windows: number of inbound address translation windows
+- num-ob-windows: number of outbound address translation windows
 
 Optional properties:
 - num-lanes: number of lanes to use (this property should be specified unless
   the link is brought already up in BIOS)
-- reset-gpio: gpio pin number of power good signal
+- reset-gpio: GPIO pin number of power good signal
 - clocks: Must contain an entry for each entry in clock-names.
 	See ../clocks/clock-bindings.txt for details.
 - clock-names: Must include the following entries:
 	- "pcie"
 	- "pcie_bus"
 RC mode:
-- num-viewport: number of view ports configured in
-  hardware. If a platform does not specify it, the driver assumes 2.
-- bus-range: PCI bus numbers covered (it is recommended
-  for new devicetrees to specify this property, to keep backwards
-  compatibility a range of 0x00-0xff is assumed if not present)
+- num-viewport: number of view ports configured in hardware. If a platform
+  does not specify it, the driver assumes 2.
+- bus-range: PCI bus numbers covered (it is recommended for new devicetrees
+  to specify this property, to keep backwards compatibility a range of
+  0x00-0xff is assumed if not present)
+
 EP mode:
-- max-functions: maximum number of functions that can be
-  configured
+- max-functions: maximum number of functions that can be configured
 
 Example configuration:
 
diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
index cf92d3ba5a26..7b1e48bf172b 100644
--- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.txt
@@ -1,6 +1,6 @@
 * Freescale i.MX6 PCIe interface
 
-This PCIe host controller is based on the Synopsis Designware PCIe IP
+This PCIe host controller is based on the Synopsys DesignWare PCIe IP
 and thus inherits all the common properties defined in designware-pcie.txt.
 
 Required properties:
diff --git a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
index 7a579c816951..bdb7ab39d2d7 100644
--- a/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/hisilicon-pcie.txt
@@ -1,7 +1,7 @@
 HiSilicon Hip05 and Hip06 PCIe host bridge DT description
 
-HiSilicon PCIe host controller is based on Designware PCI core.
-It shares common functions with PCIe Designware core driver and inherits
+HiSilicon PCIe host controller is based on the Synopsys DesignWare PCI core.
+It shares common functions with the PCIe DesignWare core driver and inherits
 common properties defined in
 Documentation/devicetree/bindings/pci/designware-pci.txt.
 
diff --git a/Documentation/devicetree/bindings/pci/kirin-pcie.txt b/Documentation/devicetree/bindings/pci/kirin-pcie.txt
index 68ffa0fbcd73..6e217c63123d 100644
--- a/Documentation/devicetree/bindings/pci/kirin-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/kirin-pcie.txt
@@ -1,8 +1,8 @@
 HiSilicon Kirin SoCs PCIe host DT description
 
-Kirin PCIe host controller is based on Designware PCI core.
-It shares common functions with PCIe Designware core driver
-and inherits common properties defined in
+Kirin PCIe host controller is based on the Synopsys DesignWare PCI core.
+It shares common functions with the PCIe DesignWare core driver and
+inherits common properties defined in
 Documentation/devicetree/bindings/pci/designware-pci.txt.
 
 Additional properties are described here:
@@ -16,7 +16,7 @@ Required properties
   "apb": apb Ctrl register defined by Kirin;
   "phy": apb PHY register defined by Kirin;
   "config": PCIe configuration space registers.
-- reset-gpios: The gpio to generate PCIe perst assert and deassert signal.
+- reset-gpios: The GPIO to generate PCIe PERST# assert and deassert signal.
 
 Optional properties:
 
diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
index ee1c72d5162e..c0484da0f20d 100644
--- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
+++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
@@ -15,8 +15,10 @@ Required properties:
 - compatible: should contain the platform identifier such as:
         "fsl,ls1021a-pcie", "snps,dw-pcie"
         "fsl,ls2080a-pcie", "fsl,ls2085a-pcie", "snps,dw-pcie"
+        "fsl,ls2088a-pcie"
+        "fsl,ls1088a-pcie"
         "fsl,ls1046a-pcie"
-- reg: base addresses and lengths of the PCIe controller
+- reg: base addresses and lengths of the PCIe controller register blocks.
 - interrupts: A list of interrupt outputs of the controller. Must contain an
   entry for each entry in the interrupt-names property.
 - interrupt-names: Must include the following entries:
diff --git a/Documentation/devicetree/bindings/pci/mediatek,mt7623-pcie.txt b/Documentation/devicetree/bindings/pci/mediatek,mt7623-pcie.txt
deleted file mode 100644
index fe80dda9bf73..000000000000
--- a/Documentation/devicetree/bindings/pci/mediatek,mt7623-pcie.txt
+++ /dev/null
@@ -1,130 +0,0 @@
-MediaTek Gen2 PCIe controller which is available on MT7623 series SoCs
-
-PCIe subsys supports single root complex (RC) with 3 Root Ports. Each root
-ports supports a Gen2 1-lane Link and has PIPE interface to PHY.
-
-Required properties:
-- compatible: Should contain "mediatek,mt7623-pcie".
-- device_type: Must be "pci"
-- reg: Base addresses and lengths of the PCIe controller.
-- #address-cells: Address representation for root ports (must be 3)
-- #size-cells: Size representation for root ports (must be 2)
-- #interrupt-cells: Size representation for interrupts (must be 1)
-- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties
-  Please refer to the standard PCI bus binding document for a more detailed
-  explanation.
-- clocks: Must contain an entry for each entry in clock-names.
-  See ../clocks/clock-bindings.txt for details.
-- clock-names: Must include the following entries:
-  - free_ck :for reference clock of PCIe subsys
-  - sys_ck0 :for clock of Port0
-  - sys_ck1 :for clock of Port1
-  - sys_ck2 :for clock of Port2
-- resets: Must contain an entry for each entry in reset-names.
-  See ../reset/reset.txt for details.
-- reset-names: Must include the following entries:
-  - pcie-rst0 :port0 reset
-  - pcie-rst1 :port1 reset
-  - pcie-rst2 :port2 reset
-- phys: List of PHY specifiers (used by generic PHY framework).
-- phy-names : Must be "pcie-phy0", "pcie-phy1", "pcie-phyN".. based on the
-  number of PHYs as specified in *phys* property.
-- power-domains: A phandle and power domain specifier pair to the power domain
-  which is responsible for collapsing and restoring power to the peripheral.
-- bus-range: Range of bus numbers associated with this controller.
-- ranges: Ranges for the PCI memory and I/O regions.
-
-In addition, the device tree node must have sub-nodes describing each
-PCIe port interface, having the following mandatory properties:
-
-Required properties:
-- device_type: Must be "pci"
-- reg: Only the first four bytes are used to refer to the correct bus number
-  and device number.
-- #address-cells: Must be 3
-- #size-cells: Must be 2
-- #interrupt-cells: Must be 1
-- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties
-  Please refer to the standard PCI bus binding document for a more detailed
-  explanation.
-- ranges: Sub-ranges distributed from the PCIe controller node. An empty
-  property is sufficient.
-- num-lanes: Number of lanes to use for this port.
-
-Examples:
-
-	hifsys: syscon@1a000000 {
-		compatible = "mediatek,mt7623-hifsys",
-			     "mediatek,mt2701-hifsys",
-			     "syscon";
-		reg = <0 0x1a000000 0 0x1000>;
-		#clock-cells = <1>;
-		#reset-cells = <1>;
-	};
-
-	pcie: pcie-controller@1a140000 {
-		compatible = "mediatek,mt7623-pcie";
-		device_type = "pci";
-		reg = <0 0x1a140000 0 0x1000>, /* PCIe shared registers */
-		      <0 0x1a142000 0 0x1000>, /* Port0 registers */
-		      <0 0x1a143000 0 0x1000>, /* Port1 registers */
-		      <0 0x1a144000 0 0x1000>; /* Port2 registers */
-		#address-cells = <3>;
-		#size-cells = <2>;
-		#interrupt-cells = <1>;
-		interrupt-map-mask = <0xf800 0 0 0>;
-		interrupt-map = <0x0000 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>,
-				<0x0800 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>,
-				<0x1000 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
-		clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
-			 <&hifsys CLK_HIFSYS_PCIE0>,
-			 <&hifsys CLK_HIFSYS_PCIE1>,
-			 <&hifsys CLK_HIFSYS_PCIE2>;
-		clock-names = "free_ck", "sys_ck0", "sys_ck1", "sys_ck2";
-		resets = <&hifsys MT2701_HIFSYS_PCIE0_RST>,
-			 <&hifsys MT2701_HIFSYS_PCIE1_RST>,
-			 <&hifsys MT2701_HIFSYS_PCIE2_RST>;
-		reset-names = "pcie-rst0", "pcie-rst1", "pcie-rst2";
-		phys = <&pcie0_phy>, <&pcie1_phy>, <&pcie2_phy>;
-		phy-names = "pcie-phy0", "pcie-phy1", "pcie-phy2";
-		power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>;
-		bus-range = <0x00 0xff>;
-		ranges = <0x81000000 0 0x1a160000 0 0x1a160000 0 0x00010000	/* I/O space */
-			  0x83000000 0 0x60000000 0 0x60000000 0 0x10000000>;	/* memory space */
-
-		pcie@0,0 {
-			device_type = "pci";
-			reg = <0x0000 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
-			#interrupt-cells = <1>;
-			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>;
-			ranges;
-			num-lanes = <1>;
-		};
-
-		pcie@1,0 {
-			device_type = "pci";
-			reg = <0x0800 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
-			#interrupt-cells = <1>;
-			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>;
-			ranges;
-			num-lanes = <1>;
-		};
-
-		pcie@2,0 {
-			device_type = "pci";
-			reg = <0x1000 0 0 0 0>;
-			#address-cells = <3>;
-			#size-cells = <2>;
-			#interrupt-cells = <1>;
-			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
-			ranges;
-			num-lanes = <1>;
-		};
-	};
diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie.txt b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
new file mode 100644
index 000000000000..3a6ce55dd310
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie.txt
@@ -0,0 +1,284 @@
+MediaTek Gen2 PCIe controller
+
+Required properties:
+- compatible: Should contain one of the following strings:
+	"mediatek,mt2701-pcie"
+	"mediatek,mt2712-pcie"
+	"mediatek,mt7622-pcie"
+	"mediatek,mt7623-pcie"
+- device_type: Must be "pci"
+- reg: Base addresses and lengths of the PCIe subsys and root ports.
+- reg-names: Names of the above areas to use during resource lookup.
+- #address-cells: Address representation for root ports (must be 3)
+- #size-cells: Size representation for root ports (must be 2)
+- clocks: Must contain an entry for each entry in clock-names.
+  See ../clocks/clock-bindings.txt for details.
+- clock-names:
+  Mandatory entries:
+   - sys_ckN :transaction layer and data link layer clock
+  Required entries for MT2701/MT7623:
+   - free_ck :for reference clock of PCIe subsys
+  Required entries for MT2712/MT7622:
+   - ahb_ckN :AHB slave interface operating clock for CSR access and RC
+	      initiated MMIO access
+  Required entries for MT7622:
+   - axi_ckN :application layer MMIO channel operating clock
+   - aux_ckN :pe2_mac_bridge and pe2_mac_core operating clock when
+	      pcie_mac_ck/pcie_pipe_ck is turned off
+   - obff_ckN :OBFF functional block operating clock
+   - pipe_ckN :LTSSM and PHY/MAC layer operating clock
+  where N starting from 0 to one less than the number of root ports.
+- phys: List of PHY specifiers (used by generic PHY framework).
+- phy-names : Must be "pcie-phy0", "pcie-phy1", "pcie-phyN".. based on the
+  number of PHYs as specified in *phys* property.
+- power-domains: A phandle and power domain specifier pair to the power domain
+  which is responsible for collapsing and restoring power to the peripheral.
+- bus-range: Range of bus numbers associated with this controller.
+- ranges: Ranges for the PCI memory and I/O regions.
+
+Required properties for MT7623/MT2701:
+- #interrupt-cells: Size representation for interrupts (must be 1)
+- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties
+  Please refer to the standard PCI bus binding document for a more detailed
+  explanation.
+- resets: Must contain an entry for each entry in reset-names.
+  See ../reset/reset.txt for details.
+- reset-names: Must be "pcie-rst0", "pcie-rst1", "pcie-rstN".. based on the
+  number of root ports.
+
+Required properties for MT2712/MT7622:
+-interrupts: A list of interrupt outputs of the controller, must have one
+	     entry for each PCIe port
+
+In addition, the device tree node must have sub-nodes describing each
+PCIe port interface, having the following mandatory properties:
+
+Required properties:
+- device_type: Must be "pci"
+- reg: Only the first four bytes are used to refer to the correct bus number
+  and device number.
+- #address-cells: Must be 3
+- #size-cells: Must be 2
+- #interrupt-cells: Must be 1
+- interrupt-map-mask and interrupt-map: Standard PCI IRQ mapping properties
+  Please refer to the standard PCI bus binding document for a more detailed
+  explanation.
+- ranges: Sub-ranges distributed from the PCIe controller node. An empty
+  property is sufficient.
+- num-lanes: Number of lanes to use for this port.
+
+Examples for MT7623:
+
+	hifsys: syscon@1a000000 {
+		compatible = "mediatek,mt7623-hifsys",
+			     "mediatek,mt2701-hifsys",
+			     "syscon";
+		reg = <0 0x1a000000 0 0x1000>;
+		#clock-cells = <1>;
+		#reset-cells = <1>;
+	};
+
+	pcie: pcie-controller@1a140000 {
+		compatible = "mediatek,mt7623-pcie";
+		device_type = "pci";
+		reg = <0 0x1a140000 0 0x1000>, /* PCIe shared registers */
+		      <0 0x1a142000 0 0x1000>, /* Port0 registers */
+		      <0 0x1a143000 0 0x1000>, /* Port1 registers */
+		      <0 0x1a144000 0 0x1000>; /* Port2 registers */
+		reg-names = "subsys", "port0", "port1", "port2";
+		#address-cells = <3>;
+		#size-cells = <2>;
+		#interrupt-cells = <1>;
+		interrupt-map-mask = <0xf800 0 0 0>;
+		interrupt-map = <0x0000 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>,
+				<0x0800 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>,
+				<0x1000 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
+		clocks = <&topckgen CLK_TOP_ETHIF_SEL>,
+			 <&hifsys CLK_HIFSYS_PCIE0>,
+			 <&hifsys CLK_HIFSYS_PCIE1>,
+			 <&hifsys CLK_HIFSYS_PCIE2>;
+		clock-names = "free_ck", "sys_ck0", "sys_ck1", "sys_ck2";
+		resets = <&hifsys MT2701_HIFSYS_PCIE0_RST>,
+			 <&hifsys MT2701_HIFSYS_PCIE1_RST>,
+			 <&hifsys MT2701_HIFSYS_PCIE2_RST>;
+		reset-names = "pcie-rst0", "pcie-rst1", "pcie-rst2";
+		phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>,
+		       <&pcie2_phy PHY_TYPE_PCIE>;
+		phy-names = "pcie-phy0", "pcie-phy1", "pcie-phy2";
+		power-domains = <&scpsys MT2701_POWER_DOMAIN_HIF>;
+		bus-range = <0x00 0xff>;
+		ranges = <0x81000000 0 0x1a160000 0 0x1a160000 0 0x00010000	/* I/O space */
+			  0x83000000 0 0x60000000 0 0x60000000 0 0x10000000>;	/* memory space */
+
+		pcie@0,0 {
+			device_type = "pci";
+			reg = <0x0000 0 0 0 0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 0>;
+			interrupt-map = <0 0 0 0 &sysirq GIC_SPI 193 IRQ_TYPE_LEVEL_LOW>;
+			ranges;
+			num-lanes = <1>;
+		};
+
+		pcie@1,0 {
+			device_type = "pci";
+			reg = <0x0800 0 0 0 0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 0>;
+			interrupt-map = <0 0 0 0 &sysirq GIC_SPI 194 IRQ_TYPE_LEVEL_LOW>;
+			ranges;
+			num-lanes = <1>;
+		};
+
+		pcie@2,0 {
+			device_type = "pci";
+			reg = <0x1000 0 0 0 0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			interrupt-map-mask = <0 0 0 0>;
+			interrupt-map = <0 0 0 0 &sysirq GIC_SPI 195 IRQ_TYPE_LEVEL_LOW>;
+			ranges;
+			num-lanes = <1>;
+		};
+	};
+
+Examples for MT2712:
+	pcie: pcie@11700000 {
+		compatible = "mediatek,mt2712-pcie";
+		device_type = "pci";
+		reg = <0 0x11700000 0 0x1000>,
+		      <0 0x112ff000 0 0x1000>;
+		reg-names = "port0", "port1";
+		#address-cells = <3>;
+		#size-cells = <2>;
+		interrupts = <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 117 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&topckgen CLK_TOP_PE2_MAC_P0_SEL>,
+			 <&topckgen CLK_TOP_PE2_MAC_P1_SEL>,
+			 <&pericfg CLK_PERI_PCIE0>,
+			 <&pericfg CLK_PERI_PCIE1>;
+		clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1";
+		phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>;
+		phy-names = "pcie-phy0", "pcie-phy1";
+		bus-range = <0x00 0xff>;
+		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x10000000>;
+
+		pcie0: pcie@0,0 {
+			device_type = "pci";
+			reg = <0x0000 0 0 0 0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			ranges;
+			num-lanes = <1>;
+			interrupt-map-mask = <0 0 0 7>;
+			interrupt-map = <0 0 0 1 &pcie_intc0 0>,
+					<0 0 0 2 &pcie_intc0 1>,
+					<0 0 0 3 &pcie_intc0 2>,
+					<0 0 0 4 &pcie_intc0 3>;
+			pcie_intc0: interrupt-controller {
+				interrupt-controller;
+				#address-cells = <0>;
+				#interrupt-cells = <1>;
+			};
+		};
+
+		pcie1: pcie@1,0 {
+			device_type = "pci";
+			reg = <0x0800 0 0 0 0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			ranges;
+			num-lanes = <1>;
+			interrupt-map-mask = <0 0 0 7>;
+			interrupt-map = <0 0 0 1 &pcie_intc1 0>,
+					<0 0 0 2 &pcie_intc1 1>,
+					<0 0 0 3 &pcie_intc1 2>,
+					<0 0 0 4 &pcie_intc1 3>;
+			pcie_intc1: interrupt-controller {
+				interrupt-controller;
+				#address-cells = <0>;
+				#interrupt-cells = <1>;
+			};
+		};
+	};
+
+Examples for MT7622:
+	pcie: pcie@1a140000 {
+		compatible = "mediatek,mt7622-pcie";
+		device_type = "pci";
+		reg = <0 0x1a140000 0 0x1000>,
+		      <0 0x1a143000 0 0x1000>,
+		      <0 0x1a145000 0 0x1000>;
+		reg-names = "subsys", "port0", "port1";
+		#address-cells = <3>;
+		#size-cells = <2>;
+		interrupts = <GIC_SPI 228 IRQ_TYPE_LEVEL_LOW>,
+			     <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
+		clocks = <&pciesys CLK_PCIE_P0_MAC_EN>,
+			 <&pciesys CLK_PCIE_P1_MAC_EN>,
+			 <&pciesys CLK_PCIE_P0_AHB_EN>,
+			 <&pciesys CLK_PCIE_P1_AHB_EN>,
+			 <&pciesys CLK_PCIE_P0_AUX_EN>,
+			 <&pciesys CLK_PCIE_P1_AUX_EN>,
+			 <&pciesys CLK_PCIE_P0_AXI_EN>,
+			 <&pciesys CLK_PCIE_P1_AXI_EN>,
+			 <&pciesys CLK_PCIE_P0_OBFF_EN>,
+			 <&pciesys CLK_PCIE_P1_OBFF_EN>,
+			 <&pciesys CLK_PCIE_P0_PIPE_EN>,
+			 <&pciesys CLK_PCIE_P1_PIPE_EN>;
+		clock-names = "sys_ck0", "sys_ck1", "ahb_ck0", "ahb_ck1",
+			      "aux_ck0", "aux_ck1", "axi_ck0", "axi_ck1",
+			      "obff_ck0", "obff_ck1", "pipe_ck0", "pipe_ck1";
+		phys = <&pcie0_phy PHY_TYPE_PCIE>, <&pcie1_phy PHY_TYPE_PCIE>;
+		phy-names = "pcie-phy0", "pcie-phy1";
+		power-domains = <&scpsys MT7622_POWER_DOMAIN_HIF0>;
+		bus-range = <0x00 0xff>;
+		ranges = <0x82000000 0 0x20000000  0x0 0x20000000  0 0x10000000>;
+
+		pcie0: pcie@0,0 {
+			device_type = "pci";
+			reg = <0x0000 0 0 0 0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			ranges;
+			num-lanes = <1>;
+			interrupt-map-mask = <0 0 0 7>;
+			interrupt-map = <0 0 0 1 &pcie_intc0 0>,
+					<0 0 0 2 &pcie_intc0 1>,
+					<0 0 0 3 &pcie_intc0 2>,
+					<0 0 0 4 &pcie_intc0 3>;
+			pcie_intc0: interrupt-controller {
+				interrupt-controller;
+				#address-cells = <0>;
+				#interrupt-cells = <1>;
+			};
+		};
+
+		pcie1: pcie@1,0 {
+			device_type = "pci";
+			reg = <0x0800 0 0 0 0>;
+			#address-cells = <3>;
+			#size-cells = <2>;
+			#interrupt-cells = <1>;
+			ranges;
+			num-lanes = <1>;
+			interrupt-map-mask = <0 0 0 7>;
+			interrupt-map = <0 0 0 1 &pcie_intc1 0>,
+					<0 0 0 2 &pcie_intc1 1>,
+					<0 0 0 3 &pcie_intc1 2>,
+					<0 0 0 4 &pcie_intc1 3>;
+			pcie_intc1: interrupt-controller {
+				interrupt-controller;
+				#address-cells = <0>;
+				#interrupt-cells = <1>;
+			};
+		};
+	};
diff --git a/Documentation/devicetree/bindings/pci/mvebu-pci.txt b/Documentation/devicetree/bindings/pci/mvebu-pci.txt
index 9c7fce69570b..127ae1f53e5a 100644
--- a/Documentation/devicetree/bindings/pci/mvebu-pci.txt
+++ b/Documentation/devicetree/bindings/pci/mvebu-pci.txt
@@ -77,7 +77,7 @@ and the following optional properties:
 - marvell,pcie-lane: the physical PCIe lane number, for ports having
   multiple lanes. If this property is not found, we assume that the
   value is 0.
-- reset-gpios: optional gpio to PERST#
+- reset-gpios: optional GPIO to PERST#
 - reset-delay-us: delay in us to wait after reset de-assertion, if not
   specified will default to 100ms, as required by the PCIe specification.
 
diff --git a/Documentation/devicetree/bindings/pci/pci-armada8k.txt b/Documentation/devicetree/bindings/pci/pci-armada8k.txt
index 6b115fd10fec..c1e4c3d10a74 100644
--- a/Documentation/devicetree/bindings/pci/pci-armada8k.txt
+++ b/Documentation/devicetree/bindings/pci/pci-armada8k.txt
@@ -1,6 +1,6 @@
 * Marvell Armada 7K/8K PCIe interface
 
-This PCIe host controller is based on the Synopsis Designware PCIe IP
+This PCIe host controller is based on the Synopsys DesignWare PCIe IP
 and thus inherits all the common properties defined in designware-pcie.txt.
 
 Required properties:
diff --git a/Documentation/devicetree/bindings/pci/pci-keystone.txt b/Documentation/devicetree/bindings/pci/pci-keystone.txt
index d08a4d51108f..7e05487544ed 100644
--- a/Documentation/devicetree/bindings/pci/pci-keystone.txt
+++ b/Documentation/devicetree/bindings/pci/pci-keystone.txt
@@ -1,12 +1,12 @@
 TI Keystone PCIe interface
 
-Keystone PCI host Controller is based on Designware PCI h/w version 3.65.
-It shares common functions with PCIe Designware core driver and inherit
-common properties defined in
+Keystone PCI host Controller is based on the Synopsys DesignWare PCI
+hardware version 3.65.  It shares common functions with the PCIe DesignWare
+core driver and inherits common properties defined in
 Documentation/devicetree/bindings/pci/designware-pci.txt
 
 Please refer to Documentation/devicetree/bindings/pci/designware-pci.txt
-for the details of Designware DT bindings.  Additional properties are
+for the details of DesignWare DT bindings.  Additional properties are
 described here as well as properties that are not applicable.
 
 Required Properties:-
@@ -52,13 +52,12 @@ pcie_intc: Interrupt controller device node for Legacy IRQ chip
 	};
 
 Optional properties:-
-	phys: phandle to Generic Keystone SerDes phy for PCI
-	phy-names: name of the Generic Keystine SerDes phy for PCI
+	phys: phandle to generic Keystone SerDes PHY for PCI
+	phy-names: name of the generic Keystone SerDes PHY for PCI
 	  - If boot loader already does PCI link establishment, then phys and
 	    phy-names shouldn't be present.
 	interrupts: platform interrupt for error interrupts.
 
-Designware DT Properties not applicable for Keystone PCI
+DesignWare DT Properties not applicable for Keystone PCI
 
 1. pcie_bus clock-names not used.  Instead, a phandle to phys is used.
-
diff --git a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
index 07a75094c5a8..3d038638612b 100644
--- a/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
+++ b/Documentation/devicetree/bindings/pci/pci-rcar-gen2.txt
@@ -6,11 +6,14 @@ AHB. There is one bridge instance per USB port connected to the internal
 OHCI and EHCI controllers.
 
 Required properties:
-- compatible: "renesas,pci-r8a7790" for the R8A7790 SoC;
+- compatible: "renesas,pci-r8a7743" for the R8A7743 SoC;
+	      "renesas,pci-r8a7745" for the R8A7745 SoC;
+	      "renesas,pci-r8a7790" for the R8A7790 SoC;
 	      "renesas,pci-r8a7791" for the R8A7791 SoC;
 	      "renesas,pci-r8a7793" for the R8A7793 SoC;
 	      "renesas,pci-r8a7794" for the R8A7794 SoC;
-	      "renesas,pci-rcar-gen2" for a generic R-Car Gen2 compatible device
+	      "renesas,pci-rcar-gen2" for a generic R-Car Gen2 or
+				      RZ/G1 compatible device.
 
 
 	      When compatible with the generic version, nodes must list the
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.txt b/Documentation/devicetree/bindings/pci/qcom,pcie.txt
index 9d418b71774f..3c9d321b3d3b 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.txt
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.txt
@@ -9,6 +9,7 @@
 			- "qcom,pcie-apq8084" for apq8084
 			- "qcom,pcie-msm8996" for msm8996 or apq8096
 			- "qcom,pcie-ipq4019" for ipq4019
+			- "qcom,pcie-ipq8074" for ipq8074
 
 - reg:
 	Usage: required
@@ -20,7 +21,7 @@
 	Value type: <stringlist>
 	Definition: Must include the following entries
 			- "parf"   Qualcomm specific registers
-			- "dbi"	   Designware PCIe registers
+			- "dbi"	   DesignWare PCIe registers
 			- "elbi"   External local bus interface registers
 			- "config" PCIe configuration space
 
@@ -105,6 +106,16 @@
 			- "bus_master"	Master AXI clock
 			- "bus_slave"	Slave AXI clock
 
+- clock-names:
+	Usage: required for ipq8074
+	Value type: <stringlist>
+	Definition: Should contain the following entries
+			- "iface"	PCIe to SysNOC BIU clock
+			- "axi_m"	AXI Master clock
+			- "axi_s"	AXI Slave clock
+			- "ahb"		AHB clock
+			- "aux"		Auxiliary clock
+
 - resets:
 	Usage: required
 	Value type: <prop-encoded-array>
@@ -144,6 +155,18 @@
 			- "ahb"			AHB reset
 			- "phy_ahb"		PHY AHB reset
 
+- reset-names:
+	Usage: required for ipq8074
+	Value type: <stringlist>
+	Definition: Should contain the following entries
+			- "pipe"		PIPE reset
+			- "sleep"		Sleep reset
+			- "sticky"		Core Sticky reset
+			- "axi_m"		AXI Master reset
+			- "axi_s"		AXI Slave reset
+			- "ahb"			AHB Reset
+			- "axi_m_sticky"	AXI Master Sticky reset
+
 - power-domains:
 	Usage: required for apq8084 and msm8996/apq8096
 	Value type: <prop-encoded-array>
@@ -180,7 +203,7 @@
 - <name>-gpios:
 	Usage: optional
 	Value type: <prop-encoded-array>
-	Definition: List of phandle and gpio specifier pairs. Should contain
+	Definition: List of phandle and GPIO specifier pairs. Should contain
 			- "perst-gpios"	PCIe endpoint reset signal line
 			- "wake-gpios"	PCIe endpoint wake signal line
 
diff --git a/Documentation/devicetree/bindings/pci/ralink,rt3883-pci.txt b/Documentation/devicetree/bindings/pci/ralink,rt3883-pci.txt
index 8e0a1eb0acbb..a04ab1b76211 100644
--- a/Documentation/devicetree/bindings/pci/ralink,rt3883-pci.txt
+++ b/Documentation/devicetree/bindings/pci/ralink,rt3883-pci.txt
@@ -71,7 +71,7 @@
    - interrupt-map: standard PCI properties to define the mapping of the
      PCI interface to interrupt numbers.
 
-   The PCI host bridge node migh have additional sub-nodes representing
+   The PCI host bridge node might have additional sub-nodes representing
    the onboard PCI devices/PCI slots. Each such sub-node must have the
    following mandatory properties:
 
diff --git a/Documentation/devicetree/bindings/pci/rcar-pci.txt b/Documentation/devicetree/bindings/pci/rcar-pci.txt
index a7e3dd43b2a8..76ba3a61d1a3 100644
--- a/Documentation/devicetree/bindings/pci/rcar-pci.txt
+++ b/Documentation/devicetree/bindings/pci/rcar-pci.txt
@@ -14,7 +14,7 @@ compatible: "renesas,pcie-r8a7779" for the R8A7779 SoC;
 	    SoC-specific version corresponding to the platform first
 	    followed by the generic version.
 
-- reg: base address and length of the pcie controller registers.
+- reg: base address and length of the PCIe controller registers.
 - #address-cells: set to <3>
 - #size-cells: set to <2>
 - bus-range: PCI bus numbers covered
@@ -25,15 +25,14 @@ compatible: "renesas,pcie-r8a7779" for the R8A7779 SoC;
 	source for hardware related interrupts (e.g. link speed change).
 - #interrupt-cells: set to <1>
 - interrupt-map-mask and interrupt-map: standard PCI properties
-	to define the mapping of the PCIe interface to interrupt
-	numbers.
+	to define the mapping of the PCIe interface to interrupt numbers.
 - clocks: from common clock binding: clock specifiers for the PCIe controller
 	and PCIe bus clocks.
 - clock-names: from common clock binding: should be "pcie" and "pcie_bus".
 
 Example:
 
-SoC specific DT Entry:
+SoC-specific DT Entry:
 
 	pcie: pcie@fe000000 {
 		compatible = "renesas,pcie-r8a7791", "renesas,pcie-rcar-gen2";
diff --git a/Documentation/devicetree/bindings/pci/rockchip-pcie.txt b/Documentation/devicetree/bindings/pci/rockchip-pcie.txt
index 1453a734c2f5..af34c65773fd 100644
--- a/Documentation/devicetree/bindings/pci/rockchip-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/rockchip-pcie.txt
@@ -19,8 +19,6 @@ Required properties:
 	- "pm"
 - msi-map: Maps a Requester ID to an MSI controller and associated
 	msi-specifier data. See ./pci-msi.txt
-- phys: From PHY bindings: Phandle for the Generic PHY for PCIe.
-- phy-names:  MUST be "pcie-phy".
 - interrupts: Three interrupt entries must be specified.
 - interrupt-names: Must include the following names
 	- "sys"
@@ -42,11 +40,24 @@ Required properties:
 	interrupt source. The value must be 1.
 - interrupt-map-mask and interrupt-map: standard PCI properties
 
+Required properties for legacy PHY model (deprecated):
+- phys: From PHY bindings: Phandle for the Generic PHY for PCIe.
+- phy-names:  MUST be "pcie-phy".
+
+Required properties for per-lane PHY model (preferred):
+- phys: Must contain an phandle to a PHY for each entry in phy-names.
+- phy-names: Must include 4 entries for all 4 lanes even if some of
+  them won't be used for your cases. Entries are of the form "pcie-phy-N":
+  where N ranges from 0 to 3.
+  (see example below and you MUST also refer to ../phy/rockchip-pcie-phy.txt
+  for changing the #phy-cells of phy node to support it)
+
 Optional Property:
 - aspm-no-l0s: RC won't support ASPM L0s. This property is needed if
 	using 24MHz OSC for RC's PHY.
-- ep-gpios: contain the entry for pre-reset gpio
+- ep-gpios: contain the entry for pre-reset GPIO
 - num-lanes: number of lanes to use
+- vpcie12v-supply: The phandle to the 12v regulator to use for PCIe.
 - vpcie3v3-supply: The phandle to the 3.3v regulator to use for PCIe.
 - vpcie1v8-supply: The phandle to the 1.8v regulator to use for PCIe.
 - vpcie0v9-supply: The phandle to the 0.9v regulator to use for PCIe.
@@ -95,6 +106,7 @@ pcie0: pcie@f8000000 {
 		 <&cru SRST_PCIE_PM>, <&cru SRST_P_PCIE>, <&cru SRST_A_PCIE>;
 	reset-names = "core", "mgmt", "mgmt-sticky", "pipe",
 		      "pm", "pclk", "aclk";
+	/* deprecated legacy PHY model */
 	phys = <&pcie_phy>;
 	phy-names = "pcie-phy";
 	pinctrl-names = "default";
@@ -111,3 +123,13 @@ pcie0: pcie@f8000000 {
 		#interrupt-cells = <1>;
 	};
 };
+
+pcie0: pcie@f8000000 {
+	...
+
+	/* preferred per-lane PHY model */
+	phys = <&pcie_phy 0>, <&pcie_phy 1>, <&pcie_phy 2>, <&pcie_phy 3>;
+	phy-names = "pcie-phy-0", "pcie-phy-1", "pcie-phy-2", "pcie-phy-3";
+
+	...
+};
diff --git a/Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt b/Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt
index 7d3b09474657..34a11bfbfb60 100644
--- a/Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/samsung,exynos5440-pcie.txt
@@ -1,29 +1,29 @@
 * Samsung Exynos 5440 PCIe interface
 
-This PCIe host controller is based on the Synopsis Designware PCIe IP
+This PCIe host controller is based on the Synopsys DesignWare PCIe IP
 and thus inherits all the common properties defined in designware-pcie.txt.
 
 Required properties:
 - compatible: "samsung,exynos5440-pcie"
-- reg: base addresses and lengths of the pcie controller,
-	the phy controller, additional register for the phy controller.
-	(Registers for the phy controller are DEPRECATED.
+- reg: base addresses and lengths of the PCIe controller,
+	the PHY controller, additional register for the PHY controller.
+	(Registers for the PHY controller are DEPRECATED.
 	 Use the PHY framework.)
 - reg-names : First name should be set to "elbi".
-	And use the "config" instead of getting the confgiruation address space
+	And use the "config" instead of getting the configuration address space
 	from "ranges".
-	NOTE: When use the "config" property, reg-names must be set.
+	NOTE: When using the "config" property, reg-names must be set.
 - interrupts: A list of interrupt outputs for level interrupt,
 	pulse interrupt, special interrupt.
-- phys: From PHY binding. Phandle for the Generic PHY.
+- phys: From PHY binding. Phandle for the generic PHY.
 	Refer to Documentation/devicetree/bindings/phy/samsung-phy.txt
 
-Other common properties refer to
-	Documentation/devicetree/binding/pci/designware-pcie.txt
+For other common properties, refer to
+	Documentation/devicetree/bindings/pci/designware-pcie.txt
 
 Example:
 
-SoC specific DT Entry:
+SoC-specific DT Entry:
 
 	pcie@290000 {
 		compatible = "samsung,exynos5440-pcie", "snps,dw-pcie";
@@ -83,7 +83,7 @@ With using PHY framework:
 		...
 	};
 
-Board specific DT Entry:
+Board-specific DT Entry:
 
 	pcie@290000 {
 		reset-gpio = <&pin_ctrl 5 0>;
diff --git a/Documentation/devicetree/bindings/pci/spear13xx-pcie.txt b/Documentation/devicetree/bindings/pci/spear13xx-pcie.txt
index 49ea76da7718..d5a14f5dad46 100644
--- a/Documentation/devicetree/bindings/pci/spear13xx-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/spear13xx-pcie.txt
@@ -1,12 +1,12 @@
 SPEAr13XX PCIe DT detail:
 ================================
 
-SPEAr13XX uses synopsis designware PCIe controller and ST MiPHY as phy
+SPEAr13XX uses the Synopsys DesignWare PCIe controller and ST MiPHY as PHY
 controller.
 
 Required properties:
-- compatible : should be "st,spear1340-pcie", "snps,dw-pcie".
-- phys		    : phandle to phy node associated with pcie controller
+- compatible	    : should be "st,spear1340-pcie", "snps,dw-pcie".
+- phys		    : phandle to PHY node associated with PCIe controller
 - phy-names	    : must be "pcie-phy"
 - All other definitions as per generic PCI bindings
 
diff --git a/Documentation/devicetree/bindings/pci/ti-pci.txt b/Documentation/devicetree/bindings/pci/ti-pci.txt
index 6a07c96227e0..7f7af3044016 100644
--- a/Documentation/devicetree/bindings/pci/ti-pci.txt
+++ b/Documentation/devicetree/bindings/pci/ti-pci.txt
@@ -1,6 +1,6 @@
 TI PCI Controllers
 
-PCIe Designware Controller
+PCIe DesignWare Controller
  - compatible: Should be "ti,dra7-pcie" for RC
 	       Should be "ti,dra7-pcie-ep" for EP
  - phys : list of PHY specifiers (used by generic PHY framework)
@@ -13,7 +13,7 @@ PCIe Designware Controller
 HOST MODE
 =========
  - reg : Two register ranges as listed in the reg-names property
- - reg-names : The first entry must be "ti-conf" for the TI specific registers
+ - reg-names : The first entry must be "ti-conf" for the TI-specific registers
 	       The second entry must be "rc-dbics" for the DesignWare PCIe
 	       registers
 	       The third entry must be "config" for the PCIe configuration space
@@ -30,7 +30,7 @@ HOST MODE
 DEVICE MODE
 ===========
  - reg : Four register ranges as listed in the reg-names property
- - reg-names : "ti-conf" for the TI specific registers
+ - reg-names : "ti-conf" for the TI-specific registers
 	       "ep_dbics" for the standard configuration registers as
 		they are locally accessed within the DIF CS space
 	       "ep_dbics2" for the standard configuration registers as
@@ -46,7 +46,7 @@ DEVICE MODE
 			       access.
 
 Optional Property:
- - gpios : Should be added if a gpio line is required to drive PERST# line
+ - gpios : Should be added if a GPIO line is required to drive PERST# line
 
 NOTE: Two DT nodes may be added for each PCI controller; one for host
 mode and another for device mode. So in order for PCI to
diff --git a/Documentation/devicetree/bindings/pci/versatile.txt b/Documentation/devicetree/bindings/pci/versatile.txt
index ebd1e7d0403e..0a702b13d2ac 100644
--- a/Documentation/devicetree/bindings/pci/versatile.txt
+++ b/Documentation/devicetree/bindings/pci/versatile.txt
@@ -5,7 +5,7 @@ PCI host controller found on the ARM Versatile PB board's FPGA.
 Required properties:
 - compatible: should contain "arm,versatile-pci" to identify the Versatile PCI
   controller.
-- reg: base addresses and lengths of the pci controller. There must be 3
+- reg: base addresses and lengths of the PCI controller. There must be 3
   entries:
 	- Versatile-specific registers
 	- Self Config space
diff --git a/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt b/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
index 54bac7f8860c..85d9b95234f7 100644
--- a/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
+++ b/Documentation/devicetree/bindings/pci/xgene-pci-msi.txt
@@ -4,7 +4,7 @@ Required properties:
 
 - compatible: should be "apm,xgene1-msi" to identify
 	      X-Gene v1 PCIe MSI controller block.
-- msi-controller: indicates that this is X-Gene v1 PCIe MSI controller node
+- msi-controller: indicates that this is an X-Gene v1 PCIe MSI controller node
 - reg: physical base address (0x79000000) and length (0x900000) for controller
        registers. These registers include the MSI termination address and data
        registers as well as the MSI interrupt status registers.
@@ -13,7 +13,8 @@ Required properties:
 	      interrupt number 0x10 to 0x1f.
 - interrupt-names: not required
 
-Each PCIe node needs to have property msi-parent that points to msi controller node
+Each PCIe node needs to have property msi-parent that points to an MSI
+controller node
 
 Examples:
 
diff --git a/Documentation/devicetree/bindings/pci/xgene-pci.txt b/Documentation/devicetree/bindings/pci/xgene-pci.txt
index 1070b068c7c6..6fd2decfa66c 100644
--- a/Documentation/devicetree/bindings/pci/xgene-pci.txt
+++ b/Documentation/devicetree/bindings/pci/xgene-pci.txt
@@ -8,7 +8,7 @@ Required properties:
        property.
 - reg-names: Must include the following entries:
   "csr": controller configuration registers.
-  "cfg": pcie configuration space registers.
+  "cfg": PCIe configuration space registers.
 - #address-cells: set to <3>
 - #size-cells: set to <2>
 - ranges: ranges for the outbound memory, I/O regions.
@@ -21,11 +21,11 @@ Required properties:
 
 Optional properties:
 - status: Either "ok" or "disabled".
-- dma-coherent: Present if dma operations are coherent
+- dma-coherent: Present if DMA operations are coherent
 
 Example:
 
-SoC specific DT Entry:
+SoC-specific DT Entry:
 
 	pcie0: pcie@1f2b0000 {
 		status = "disabled";
@@ -51,7 +51,7 @@ SoC specific DT Entry:
 	};
 
 
-Board specific DT Entry:
+Board-specific DT Entry:
 	&pcie0 {
 		status = "ok";
 	};
diff --git a/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt b/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
index 3259798a1192..01bf7fdf4c19 100644
--- a/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/xilinx-nwl-pcie.txt
@@ -15,9 +15,9 @@ Required properties:
 - device_type: must be "pci"
 - interrupts: Should contain NWL PCIe interrupt
 - interrupt-names: Must include the following entries:
-	"msi1, msi0": interrupt asserted when MSI is received
+	"msi1, msi0": interrupt asserted when an MSI is received
 	"intx": interrupt asserted when a legacy interrupt is received
-	"misc": interrupt asserted when miscellaneous is received
+	"misc": interrupt asserted when miscellaneous interrupt is received
 - interrupt-map-mask and interrupt-map: standard PCI properties to define the
 	mapping of the PCI interface to interrupt numbers.
 - ranges: ranges for the PCI memory regions (I/O space region is not
@@ -26,7 +26,8 @@ Required properties:
 	detailed explanation
 - msi-controller: indicates that this is MSI controller node
 - msi-parent:  MSI parent of the root complex itself
-- legacy-interrupt-controller: Interrupt controller device node for Legacy interrupts
+- legacy-interrupt-controller: Interrupt controller device node for Legacy
+	interrupts
 	- interrupt-controller: identifies the node as an interrupt controller
 	- #interrupt-cells: should be set to 1
 	- #address-cells: specifies the number of cells needed to encode an