Merge tag 'pci-v6.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci updates from Bjorn Helgaas:
 "Resource management:

   - Add pci_dev_for_each_resource() and pci_bus_for_each_resource()
     iterators

  PCIe native device hotplug:

   - Fix AB-BA deadlock between reset_lock and device_lock

  Power management:

   - Wait longer for devices to become ready after resume (as we do for
     reset) to accommodate Intel Titan Ridge xHCI devices

   - Extend D3hot delay for NVIDIA HDA controllers to avoid
     unrecoverable devices after a bus reset

  Error handling:

   - Clear PCIe Device Status after EDR since generic error recovery now
     only clears it when AER is native

  ASPM:

   - Work around Chromebook firmware defect that clobbers Capability
     list (including ASPM L1 PM Substates Cap) when returning from
     D3cold to D0

  Freescale i.MX6 PCIe controller driver:

   - Install imprecise external abort handler only when DT indicates
     PCIe support

  Freescale Layerscape PCIe controller driver:

   - Add ls1028a endpoint mode support

  Qualcomm PCIe controller driver:

   - Add SM8550 DT binding and driver support

   - Add SDX55 DT binding and driver support

   - Use bulk APIs for clocks of IP 1.0.0, 2.3.2, 2.3.3

   - Use bulk APIs for reset of IP 2.1.0, 2.3.3, 2.4.0

   - Add DT "mhi" register region for supported SoCs

   - Expose link transition counts via debugfs to help debug low power
     issues

   - Support system suspend and resume; reduce interconnect bandwidth
     and turn off clock and PHY if there are no active devices

   - Enable async probe by default to reduce boot time

  Miscellaneous:

   - Sort controller Kconfig entries by vendor"

* tag 'pci-v6.4-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (56 commits)
  PCI: xilinx: Drop obsolete dependency on COMPILE_TEST
  PCI: mobiveil: Sort Kconfig entries by vendor
  PCI: dwc: Sort Kconfig entries by vendor
  PCI: Sort controller Kconfig entries by vendor
  PCI: Use consistent controller Kconfig menu entry language
  PCI: xilinx-nwl: Add 'Xilinx' to Kconfig prompt
  PCI: hv: Add 'Microsoft' to Kconfig prompt
  PCI: meson: Add 'Amlogic' to Kconfig prompt
  PCI: Use of_property_present() for testing DT property presence
  PCI/PM: Extend D3hot delay for NVIDIA HDA controllers
  dt-bindings: PCI: qcom: Document msi-map and msi-map-mask properties
  PCI: qcom: Add SM8550 PCIe support
  dt-bindings: PCI: qcom: Add SM8550 compatible
  PCI: qcom: Add support for SDX55 SoC
  dt-bindings: PCI: qcom-ep: Fix the unit address used in example
  dt-bindings: PCI: qcom: Add SDX55 SoC
  dt-bindings: PCI: qcom: Update maintainers entry
  PCI: qcom: Enable async probe by default
  PCI: qcom: Add support for system suspend and resume
  PCI/PM: Drop pci_bridge_wait_for_secondary_bus() timeout parameter
  ...

7 files changed, 588 insertions, 313 deletions

diff --git a/Documentation/devicetree/bindings/pci/amlogic,axg-pcie.yaml b/Documentation/devicetree/bindings/pci/amlogic,axg-pcie.yaml
new file mode 100644
index 000000000000..a5bd90bc0712
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/amlogic,axg-pcie.yaml
@@ -0,0 +1,134 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/amlogic,axg-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic Meson AXG DWC PCIe SoC controller
+
+maintainers:
+  - Neil Armstrong <neil.armstrong@linaro.org>
+
+description:
+  Amlogic Meson PCIe host controller is based on the Synopsys DesignWare PCI core.
+
+allOf:
+  - $ref: /schemas/pci/pci-bus.yaml#
+  - $ref: /schemas/pci/snps,dw-pcie-common.yaml#
+
+# We need a select here so we don't match all nodes with 'snps,dw-pcie'
+select:
+  properties:
+    compatible:
+      enum:
+        - amlogic,axg-pcie
+        - amlogic,g12a-pcie
+  required:
+    - compatible
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - amlogic,axg-pcie
+          - amlogic,g12a-pcie
+      - const: snps,dw-pcie
+
+  reg:
+    items:
+      - description: External local bus interface registers
+      - description: Meson designed configuration registers
+      - description: PCIe configuration space
+
+  reg-names:
+    items:
+      - const: elbi
+      - const: cfg
+      - const: config
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: PCIe GEN 100M PLL clock
+      - description: PCIe RC clock gate
+      - description: PCIe PHY clock
+
+  clock-names:
+    items:
+      - const: pclk
+      - const: port
+      - const: general
+
+  phys:
+    maxItems: 1
+
+  phy-names:
+    const: pcie
+
+  resets:
+    items:
+      - description: Port Reset
+      - description: Shared APB reset
+
+  reset-names:
+    items:
+      - const: port
+      - const: apb
+
+  num-lanes:
+    const: 1
+
+  power-domains:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - clock
+  - clock-names
+  - "#address-cells"
+  - "#size-cells"
+  - "#interrupt-cells"
+  - interrupt-map
+  - interrupt-map-mask
+  - ranges
+  - bus-range
+  - device_type
+  - num-lanes
+  - phys
+  - phy-names
+  - resets
+  - reset-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    pcie: pcie@f9800000 {
+        compatible = "amlogic,axg-pcie", "snps,dw-pcie";
+        reg = <0xf9800000 0x400000>, <0xff646000 0x2000>, <0xf9f00000 0x100000>;
+        reg-names = "elbi", "cfg", "config";
+        interrupts = <GIC_SPI 177 IRQ_TYPE_EDGE_RISING>;
+        clocks = <&pclk>, <&clk_port>, <&clk_phy>;
+        clock-names = "pclk", "port", "general";
+        resets = <&reset_pcie_port>, <&reset_pcie_apb>;
+        reset-names = "port", "apb";
+        phys = <&pcie_phy>;
+        phy-names = "pcie";
+        #interrupt-cells = <1>;
+        interrupt-map-mask = <0 0 0 0>;
+        interrupt-map = <0 0 0 0 &gic GIC_SPI 179 IRQ_TYPE_EDGE_RISING>;
+        bus-range = <0x0 0xff>;
+        #address-cells = <3>;
+        #size-cells = <2>;
+        device_type = "pci";
+        num-lanes = <1>;
+        ranges = <0x82000000 0 0 0xf9c00000 0 0x00300000>;
+    };
+...
diff --git a/Documentation/devicetree/bindings/pci/amlogic,meson-pcie.txt b/Documentation/devicetree/bindings/pci/amlogic,meson-pcie.txt
deleted file mode 100644
index c3a75ac6e59d..000000000000
--- a/Documentation/devicetree/bindings/pci/amlogic,meson-pcie.txt
+++ /dev/null
@@ -1,70 +0,0 @@
-Amlogic Meson AXG DWC PCIE SoC controller
-
-Amlogic Meson 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/snps,dw-pcie.yaml.
-
-Additional properties are described here:
-
-Required properties:
-- compatible:
-	should contain :
-	- "amlogic,axg-pcie" for AXG SoC Family
-	- "amlogic,g12a-pcie" for G12A SoC Family
-	to identify the core.
-- reg:
-	should contain the configuration address space.
-- reg-names: Must be
-	- "elbi"	External local bus interface registers
-	- "cfg"		Meson specific registers
-	- "config"	PCIe configuration space
-- reset-gpios: The GPIO to generate PCIe PERST# assert and deassert signal.
-- clocks: Must contain an entry for each entry in clock-names.
-- clock-names: Must include the following entries:
-	- "pclk"       PCIe GEN 100M PLL clock
-	- "port"       PCIe_x(A or B) RC clock gate
-	- "general"    PCIe Phy clock
-- resets: phandle to the reset lines.
-- reset-names: must contain "port" and "apb"
-       - "port"        Port A or B reset
-       - "apb"         Share APB reset
-- phys: should contain a phandle to the PCIE phy
-- phy-names: must contain "pcie"
-
-- device_type:
-	should be "pci". As specified in snps,dw-pcie.yaml
-
-
-Example configuration:
-
-	pcie: pcie@f9800000 {
-			compatible = "amlogic,axg-pcie", "snps,dw-pcie";
-			reg = <0x0 0xf9800000 0x0 0x400000
-					0x0 0xff646000 0x0 0x2000
-					0x0 0xf9f00000 0x0 0x100000>;
-			reg-names = "elbi", "cfg", "config";
-			reset-gpios = <&gpio GPIOX_19 GPIO_ACTIVE_HIGH>;
-			interrupts = <GIC_SPI 177 IRQ_TYPE_EDGE_RISING>;
-			#interrupt-cells = <1>;
-			interrupt-map-mask = <0 0 0 0>;
-			interrupt-map = <0 0 0 0 &gic GIC_SPI 179 IRQ_TYPE_EDGE_RISING>;
-			bus-range = <0x0 0xff>;
-			#address-cells = <3>;
-			#size-cells = <2>;
-			device_type = "pci";
-			ranges = <0x82000000 0 0 0x0 0xf9c00000 0 0x00300000>;
-
-			clocks = <&clkc CLKID_USB
-					&clkc CLKID_PCIE_A
-					&clkc CLKID_PCIE_CML_EN0>;
-			clock-names = "general",
-					"pclk",
-					"port";
-			resets = <&reset RESET_PCIE_A>,
-				<&reset RESET_PCIE_APB>;
-			reset-names = "port",
-					"apb";
-			phys = <&pcie_phy>;
-			phy-names = "pcie";
-	};
diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml
new file mode 100644
index 000000000000..9bff8ecb653c
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-common.yaml
@@ -0,0 +1,279 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/fsl,imx6q-pcie-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX6 PCIe RC/EP controller
+
+maintainers:
+  - Lucas Stach <l.stach@pengutronix.de>
+  - Richard Zhu <hongxing.zhu@nxp.com>
+
+description:
+  Generic Freescale i.MX PCIe Root Port and Endpoint controller
+  properties.
+
+properties:
+  clocks:
+    minItems: 3
+    items:
+      - description: PCIe bridge clock.
+      - description: PCIe bus clock.
+      - description: PCIe PHY clock.
+      - description: Additional required clock entry for imx6sx-pcie,
+           imx6sx-pcie-ep, imx8mq-pcie, imx8mq-pcie-ep.
+
+  clock-names:
+    minItems: 3
+    items:
+      - const: pcie
+      - const: pcie_bus
+      - enum: [ pcie_phy, pcie_aux ]
+      - enum: [ pcie_inbound_axi, pcie_aux ]
+
+  num-lanes:
+    const: 1
+
+  fsl,imx7d-pcie-phy:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: A phandle to an fsl,imx7d-pcie-phy node. Additional
+      required properties for imx7d-pcie, imx7d-pcie-ep, imx8mq-pcie,
+      and imx8mq-pcie-ep.
+
+  power-domains:
+    minItems: 1
+    items:
+      - description: The phandle pointing to the DISPLAY domain for
+          imx6sx-pcie, imx6sx-pcie-ep, to PCIE_PHY power domain for
+          imx7d-pcie, imx7d-pcie-ep, imx8mq-pcie and imx8mq-pcie-ep.
+      - description: The phandle pointing to the PCIE_PHY power domains
+          for imx6sx-pcie and imx6sx-pcie-ep.
+
+  power-domain-names:
+    minItems: 1
+    items:
+      - const: pcie
+      - const: pcie_phy
+
+  resets:
+    minItems: 2
+    maxItems: 3
+    description: Phandles to PCIe-related reset lines exposed by SRC
+      IP block. Additional required by imx7d-pcie, imx7d-pcie-ep,
+      imx8mq-pcie, and imx8mq-pcie-ep.
+
+  reset-names:
+    minItems: 2
+    maxItems: 3
+
+  fsl,tx-deemph-gen1:
+    description: Gen1 De-emphasis value (optional required).
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0
+
+  fsl,tx-deemph-gen2-3p5db:
+    description: Gen2 (3.5db) De-emphasis value (optional required).
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 0
+
+  fsl,tx-deemph-gen2-6db:
+    description: Gen2 (6db) De-emphasis value (optional required).
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 20
+
+  fsl,tx-swing-full:
+    description: Gen2 TX SWING FULL value (optional required).
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 127
+
+  fsl,tx-swing-low:
+    description: TX launch amplitude swing_low value (optional required).
+    $ref: /schemas/types.yaml#/definitions/uint32
+    default: 127
+
+  fsl,max-link-speed:
+    description: Specify PCI Gen for link capability (optional required).
+      Note that the IMX6 LVDS clock outputs do not meet gen2 jitter
+      requirements and thus for gen2 capability a gen2 compliant clock
+      generator should be used and configured.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [1, 2, 3, 4]
+    default: 1
+
+  phys:
+    maxItems: 1
+
+  phy-names:
+    const: pcie-phy
+
+  vpcie-supply:
+    description: Should specify the regulator in charge of PCIe port power.
+      The regulator will be enabled when initializing the PCIe host and
+      disabled either as part of the init process or when shutting down
+      the host (optional required).
+
+  vph-supply:
+    description: Should specify the regulator in charge of VPH one of
+      the three PCIe PHY powers. This regulator can be supplied by both
+      1.8v and 3.3v voltage supplies (optional required).
+
+required:
+  - clocks
+  - clock-names
+  - num-lanes
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx6sx-pcie
+              - fsl,imx6sx-pcie-ep
+    then:
+      properties:
+        clock-names:
+          items:
+            - {}
+            - {}
+            - const: pcie_phy
+            - const: pcie_inbound_axi
+        power-domains:
+          minItems: 2
+        power-domain-names:
+          minItems: 2
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx8mq-pcie
+              - fsl,imx8mq-pcie-ep
+    then:
+      properties:
+        clock-names:
+          items:
+            - {}
+            - {}
+            - const: pcie_phy
+            - const: pcie_aux
+  - if:
+      properties:
+        compatible:
+          not:
+            contains:
+              enum:
+                - fsl,imx6sx-pcie
+                - fsl,imx8mq-pcie
+                - fsl,imx6sx-pcie-ep
+                - fsl,imx8mq-pcie-ep
+    then:
+      properties:
+        clocks:
+          maxItems: 3
+        clock-names:
+          maxItems: 3
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx6q-pcie
+              - fsl,imx6qp-pcie
+              - fsl,imx7d-pcie
+              - fsl,imx6q-pcie-ep
+              - fsl,imx6qp-pcie-ep
+              - fsl,imx7d-pcie-ep
+    then:
+      properties:
+        clock-names:
+          maxItems: 3
+          contains:
+            const: pcie_phy
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx8mm-pcie
+              - fsl,imx8mp-pcie
+              - fsl,imx8mm-pcie-ep
+              - fsl,imx8mp-pcie-ep
+    then:
+      properties:
+        clock-names:
+          maxItems: 3
+          contains:
+            const: pcie_aux
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx6q-pcie
+              - fsl,imx6qp-pcie
+              - fsl,imx6q-pcie-ep
+              - fsl,imx6qp-pcie-ep
+    then:
+      properties:
+        power-domains: false
+        power-domain-names: false
+
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              enum:
+                - fsl,imx6sx-pcie
+                - fsl,imx6q-pcie
+                - fsl,imx6qp-pcie
+                - fsl,imx6sx-pcie-ep
+                - fsl,imx6q-pcie-ep
+                - fsl,imx6qp-pcie-ep
+    then:
+      properties:
+        power-domains:
+          maxItems: 1
+        power-domain-names: false
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - fsl,imx6q-pcie
+              - fsl,imx6sx-pcie
+              - fsl,imx6qp-pcie
+              - fsl,imx7d-pcie
+              - fsl,imx8mq-pcie
+              - fsl,imx6q-pcie-ep
+              - fsl,imx6sx-pcie-ep
+              - fsl,imx6qp-pcie-ep
+              - fsl,imx7d-pcie-ep
+              - fsl,imx8mq-pcie-ep
+    then:
+      properties:
+        resets:
+          minItems: 3
+        reset-names:
+          items:
+            - const: pciephy
+            - const: apps
+            - const: turnoff
+    else:
+      properties:
+        resets:
+          maxItems: 2
+        reset-names:
+          items:
+            - const: apps
+            - const: turnoff
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.yaml
new file mode 100644
index 000000000000..f4a328ec1daa
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie-ep.yaml
@@ -0,0 +1,85 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/fsl,imx6q-pcie-ep.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale i.MX6 PCIe Endpoint controller
+
+maintainers:
+  - Lucas Stach <l.stach@pengutronix.de>
+  - Richard Zhu <hongxing.zhu@nxp.com>
+
+description: |+
+  This PCIe controller is based on the Synopsys DesignWare PCIe IP and
+  thus inherits all the common properties defined in snps,dw-pcie-ep.yaml.
+  The controller instances are dual mode where in they can work either in
+  Root Port mode or Endpoint mode but one at a time.
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8mm-pcie-ep
+      - fsl,imx8mq-pcie-ep
+      - fsl,imx8mp-pcie-ep
+
+  reg:
+    minItems: 2
+
+  reg-names:
+    items:
+      - const: dbi
+      - const: addr_space
+
+  interrupts:
+    items:
+      - description: builtin eDMA interrupter.
+
+  interrupt-names:
+    items:
+      - const: dma
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+  - interrupt-names
+
+allOf:
+  - $ref: /schemas/pci/snps,dw-pcie-ep.yaml#
+  - $ref: /schemas/pci/fsl,imx6q-pcie-common.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/imx8mp-clock.h>
+    #include <dt-bindings/power/imx8mp-power.h>
+    #include <dt-bindings/reset/imx8mp-reset.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    pcie_ep: pcie-ep@33800000 {
+      compatible = "fsl,imx8mp-pcie-ep";
+      reg = <0x33800000 0x000400000>, <0x18000000 0x08000000>;
+      reg-names = "dbi", "addr_space";
+      clocks = <&clk IMX8MP_CLK_HSIO_ROOT>,
+               <&clk IMX8MP_CLK_HSIO_AXI>,
+               <&clk IMX8MP_CLK_PCIE_ROOT>;
+      clock-names = "pcie", "pcie_bus", "pcie_aux";
+      assigned-clocks = <&clk IMX8MP_CLK_PCIE_AUX>;
+      assigned-clock-rates = <10000000>;
+      assigned-clock-parents = <&clk IMX8MP_SYS_PLL2_50M>;
+      num-lanes = <1>;
+      interrupts = <GIC_SPI 127 IRQ_TYPE_LEVEL_HIGH>; /* eDMA */
+      interrupt-names = "dma";
+      fsl,max-link-speed = <3>;
+      power-domains = <&hsio_blk_ctrl IMX8MP_HSIOBLK_PD_PCIE>;
+      resets = <&src IMX8MP_RESET_PCIE_CTRL_APPS_EN>,
+               <&src IMX8MP_RESET_PCIE_CTRL_APPS_TURNOFF>;
+      reset-names = "apps", "turnoff";
+      phys = <&pcie_phy>;
+      phy-names = "pcie-phy";
+      num-ib-windows = <4>;
+      num-ob-windows = <4>;
+    };
diff --git a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
index f13f87fddb3d..2443641754d3 100644
--- a/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml
@@ -13,6 +13,11 @@ maintainers:
 description: |+
   This PCIe host controller is based on the Synopsys DesignWare PCIe IP
   and thus inherits all the common properties defined in snps,dw-pcie.yaml.
+  The controller instances are dual mode where in they can work either in
+  Root Port mode or Endpoint mode but one at a time.
+
+  See fsl,imx6q-pcie-ep.yaml for details on the Endpoint mode device tree
+  bindings.
 
 properties:
   compatible:
@@ -24,9 +29,6 @@ properties:
       - fsl,imx8mq-pcie
       - fsl,imx8mm-pcie
       - fsl,imx8mp-pcie
-      - fsl,imx8mm-pcie-ep
-      - fsl,imx8mq-pcie-ep
-      - fsl,imx8mp-pcie-ep
 
   reg:
     items:
@@ -46,96 +48,6 @@ properties:
     items:
       - const: msi
 
-  clocks:
-    minItems: 3
-    items:
-      - description: PCIe bridge clock.
-      - description: PCIe bus clock.
-      - description: PCIe PHY clock.
-      - description: Additional required clock entry for imx6sx-pcie,
-          imx8mq-pcie.
-
-  clock-names:
-    minItems: 3
-    items:
-      - const: pcie
-      - const: pcie_bus
-      - enum: [ pcie_phy, pcie_aux ]
-      - enum: [ pcie_inbound_axi, pcie_aux ]
-
-  num-lanes:
-    const: 1
-
-  fsl,imx7d-pcie-phy:
-    $ref: /schemas/types.yaml#/definitions/phandle
-    description: A phandle to an fsl,imx7d-pcie-phy node. Additional
-      required properties for imx7d-pcie and imx8mq-pcie.
-
-  power-domains:
-    minItems: 1
-    items:
-      - description: The phandle pointing to the DISPLAY domain for
-          imx6sx-pcie, to PCIE_PHY power domain for imx7d-pcie and
-          imx8mq-pcie.
-      - description: The phandle pointing to the PCIE_PHY power domains
-          for imx6sx-pcie.
-
-  power-domain-names:
-    minItems: 1
-    items:
-      - const: pcie
-      - const: pcie_phy
-
-  resets:
-    minItems: 2
-    maxItems: 3
-    description: Phandles to PCIe-related reset lines exposed by SRC
-      IP block. Additional required by imx7d-pcie and imx8mq-pcie.
-
-  reset-names:
-    minItems: 2
-    maxItems: 3
-
-  fsl,tx-deemph-gen1:
-    description: Gen1 De-emphasis value (optional required).
-    $ref: /schemas/types.yaml#/definitions/uint32
-    default: 0
-
-  fsl,tx-deemph-gen2-3p5db:
-    description: Gen2 (3.5db) De-emphasis value (optional required).
-    $ref: /schemas/types.yaml#/definitions/uint32
-    default: 0
-
-  fsl,tx-deemph-gen2-6db:
-    description: Gen2 (6db) De-emphasis value (optional required).
-    $ref: /schemas/types.yaml#/definitions/uint32
-    default: 20
-
-  fsl,tx-swing-full:
-    description: Gen2 TX SWING FULL value (optional required).
-    $ref: /schemas/types.yaml#/definitions/uint32
-    default: 127
-
-  fsl,tx-swing-low:
-    description: TX launch amplitude swing_low value (optional required).
-    $ref: /schemas/types.yaml#/definitions/uint32
-    default: 127
-
-  fsl,max-link-speed:
-    description: Specify PCI Gen for link capability (optional required).
-      Note that the IMX6 LVDS clock outputs do not meet gen2 jitter
-      requirements and thus for gen2 capability a gen2 compliant clock
-      generator should be used and configured.
-    $ref: /schemas/types.yaml#/definitions/uint32
-    enum: [1, 2, 3, 4]
-    default: 1
-
-  phys:
-    maxItems: 1
-
-  phy-names:
-    const: pcie-phy
-
   reset-gpio:
     description: Should specify the GPIO for controlling the PCI bus device
       reset signal. It's not polarity aware and defaults to active-low reset
@@ -147,17 +59,6 @@ properties:
       L=operation state) (optional required).
     type: boolean
 
-  vpcie-supply:
-    description: Should specify the regulator in charge of PCIe port power.
-      The regulator will be enabled when initializing the PCIe host and
-      disabled either as part of the init process or when shutting down
-      the host (optional required).
-
-  vph-supply:
-    description: Should specify the regulator in charge of VPH one of
-      the three PCIe PHY powers. This regulator can be supplied by both
-      1.8v and 3.3v voltage supplies (optional required).
-
 required:
   - compatible
   - reg
@@ -167,144 +68,15 @@ required:
   - device_type
   - bus-range
   - ranges
-  - num-lanes
   - interrupts
   - interrupt-names
   - "#interrupt-cells"
   - interrupt-map-mask
   - interrupt-map
-  - clocks
-  - clock-names
 
 allOf:
   - $ref: /schemas/pci/snps,dw-pcie.yaml#
-  - if:
-      properties:
-        compatible:
-          contains:
-            const: fsl,imx6sx-pcie
-    then:
-      properties:
-        clock-names:
-          items:
-            - {}
-            - {}
-            - const: pcie_phy
-            - const: pcie_inbound_axi
-        power-domains:
-          minItems: 2
-        power-domain-names:
-          minItems: 2
-  - if:
-      properties:
-        compatible:
-          contains:
-            const: fsl,imx8mq-pcie
-    then:
-      properties:
-        clock-names:
-          items:
-            - {}
-            - {}
-            - const: pcie_phy
-            - const: pcie_aux
-  - if:
-      properties:
-        compatible:
-          not:
-            contains:
-              enum:
-                - fsl,imx6sx-pcie
-                - fsl,imx8mq-pcie
-    then:
-      properties:
-        clocks:
-          maxItems: 3
-        clock-names:
-          maxItems: 3
-
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
-              - fsl,imx6q-pcie
-              - fsl,imx6qp-pcie
-              - fsl,imx7d-pcie
-    then:
-      properties:
-        clock-names:
-          maxItems: 3
-          contains:
-            const: pcie_phy
-
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
-              - fsl,imx8mm-pcie
-              - fsl,imx8mp-pcie
-    then:
-      properties:
-        clock-names:
-          maxItems: 3
-          contains:
-            const: pcie_aux
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
-              - fsl,imx6q-pcie
-              - fsl,imx6qp-pcie
-    then:
-      properties:
-        power-domains: false
-        power-domain-names: false
-
-  - if:
-      not:
-        properties:
-          compatible:
-            contains:
-              enum:
-                - fsl,imx6sx-pcie
-                - fsl,imx6q-pcie
-                - fsl,imx6qp-pcie
-    then:
-      properties:
-        power-domains:
-          maxItems: 1
-        power-domain-names: false
-
-  - if:
-      properties:
-        compatible:
-          contains:
-            enum:
-              - fsl,imx6q-pcie
-              - fsl,imx6sx-pcie
-              - fsl,imx6qp-pcie
-              - fsl,imx7d-pcie
-              - fsl,imx8mq-pcie
-    then:
-      properties:
-        resets:
-          minItems: 3
-        reset-names:
-          items:
-            - const: pciephy
-            - const: apps
-            - const: turnoff
-    else:
-      properties:
-        resets:
-          maxItems: 2
-        reset-names:
-          items:
-            - const: apps
-            - const: turnoff
+  - $ref: /schemas/pci/fsl,imx6q-pcie-common.yaml#
 
 unevaluatedProperties: false
 
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
index 523b15428752..b3c22ebd156c 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
@@ -166,7 +166,7 @@ examples:
     #include <dt-bindings/clock/qcom,gcc-sdx55.h>
     #include <dt-bindings/gpio/gpio.h>
     #include <dt-bindings/interrupt-controller/arm-gic.h>
-    pcie_ep: pcie-ep@40000000 {
+    pcie_ep: pcie-ep@1c00000 {
         compatible = "qcom,sdx55-pcie-ep";
         reg = <0x01c00000 0x3000>,
               <0x40000000 0xf1d>,
diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
index fb32c43dd12d..81971be4e554 100644
--- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml
@@ -8,7 +8,7 @@ title: Qualcomm PCI express root complex
 
 maintainers:
   - Bjorn Andersson <bjorn.andersson@linaro.org>
-  - Stanimir Varbanov <svarbanov@mm-sol.com>
+  - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
 
 description: |
   Qualcomm PCIe root complex controller is based on the Synopsys DesignWare
@@ -33,22 +33,24 @@ properties:
           - qcom,pcie-sc8180x
           - qcom,pcie-sc8280xp
           - qcom,pcie-sdm845
+          - qcom,pcie-sdx55
           - qcom,pcie-sm8150
           - qcom,pcie-sm8250
           - qcom,pcie-sm8350
           - qcom,pcie-sm8450-pcie0
           - qcom,pcie-sm8450-pcie1
+          - qcom,pcie-sm8550
       - items:
           - const: qcom,pcie-msm8998
           - const: qcom,pcie-msm8996
 
   reg:
     minItems: 4
-    maxItems: 5
+    maxItems: 6
 
   reg-names:
     minItems: 4
-    maxItems: 5
+    maxItems: 6
 
   interrupts:
     minItems: 1
@@ -58,6 +60,9 @@ properties:
     minItems: 1
     maxItems: 8
 
+  iommu-map:
+    maxItems: 2
+
   # Common definitions for clocks, clock-names and reset.
   # Platform constraints are described later.
   clocks:
@@ -120,14 +125,20 @@ required:
   - compatible
   - reg
   - reg-names
-  - interrupts
-  - interrupt-names
-  - "#interrupt-cells"
   - interrupt-map-mask
   - interrupt-map
   - clocks
   - clock-names
 
+anyOf:
+  - required:
+      - interrupts
+      - interrupt-names
+      - "#interrupt-cells"
+  - required:
+      - msi-map
+      - msi-map-mask
+
 allOf:
   - $ref: /schemas/pci/pci-bus.yaml#
   - if:
@@ -185,13 +196,15 @@ allOf:
       properties:
         reg:
           minItems: 4
-          maxItems: 4
+          maxItems: 5
         reg-names:
+          minItems: 4
           items:
             - const: parf # Qualcomm specific registers
             - const: dbi # DesignWare PCIe registers
             - const: elbi # External local bus interface registers
             - const: config # PCIe configuration space
+            - const: mhi # MHI registers
 
   - if:
       properties:
@@ -201,22 +214,26 @@ allOf:
               - qcom,pcie-sc7280
               - qcom,pcie-sc8180x
               - qcom,pcie-sc8280xp
+              - qcom,pcie-sdx55
               - qcom,pcie-sm8250
               - qcom,pcie-sm8350
               - qcom,pcie-sm8450-pcie0
               - qcom,pcie-sm8450-pcie1
+              - qcom,pcie-sm8550
     then:
       properties:
         reg:
           minItems: 5
-          maxItems: 5
+          maxItems: 6
         reg-names:
+          minItems: 5
           items:
             - const: parf # Qualcomm specific registers
             - const: dbi # DesignWare PCIe registers
             - const: elbi # External local bus interface registers
             - const: atu # ATU address space
             - const: config # PCIe configuration space
+            - const: mhi # MHI registers
 
   - if:
       properties:
@@ -644,6 +661,37 @@ allOf:
         compatible:
           contains:
             enum:
+              - qcom,pcie-sm8550
+    then:
+      properties:
+        clocks:
+          minItems: 7
+          maxItems: 8
+        clock-names:
+          minItems: 7
+          items:
+            - const: aux # Auxiliary clock
+            - const: cfg # Configuration clock
+            - const: bus_master # Master AXI clock
+            - const: bus_slave # Slave AXI clock
+            - const: slave_q2a # Slave Q2A clock
+            - const: ddrss_sf_tbu # PCIe SF TBU clock
+            - const: noc_aggr # Aggre NoC PCIe AXI clock
+            - const: cnoc_sf_axi # Config NoC PCIe1 AXI clock
+        resets:
+          minItems: 1
+          maxItems: 2
+        reset-names:
+          minItems: 1
+          items:
+            - const: pci # PCIe core reset
+            - const: link_down # PCIe link down reset
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
               - qcom,pcie-sa8540p
               - qcom,pcie-sc8280xp
     then:
@@ -674,6 +722,32 @@ allOf:
         compatible:
           contains:
             enum:
+              - qcom,pcie-sdx55
+    then:
+      properties:
+        clocks:
+          minItems: 7
+          maxItems: 7
+        clock-names:
+          items:
+            - const: pipe # PIPE clock
+            - const: aux # Auxiliary clock
+            - const: cfg # Configuration clock
+            - const: bus_master # Master AXI clock
+            - const: bus_slave # Slave AXI clock
+            - const: slave_q2a # Slave Q2A clock
+            - const: sleep # PCIe Sleep clock
+        resets:
+          maxItems: 1
+        reset-names:
+          items:
+            - const: pci # PCIe core reset
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
               - qcom,pcie-sa8540p
               - qcom,pcie-sc8280xp
     then:
@@ -724,6 +798,7 @@ allOf:
               - qcom,pcie-sm8350
               - qcom,pcie-sm8450-pcie0
               - qcom,pcie-sm8450-pcie1
+              - qcom,pcie-sm8550
     then:
       oneOf:
         - properties: