Addition of the bindings for the Designware based PCIe controller
that can be found on STi platforms such as STiH407, STiH410 or STiH418.

Signed-off-by: Alain Volmat <redacted>
---
 .../devicetree/bindings/pci/snps,dw-pcie.yaml |   2 +-
 .../devicetree/bindings/pci/st,st-pcie.yaml   | 112 ++++++++++++++++++
 2 files changed, 113 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/pci/st,st-pcie.yaml

diff --git a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
index 9ed0dfba7f89..3a92078128f7 100644
--- a/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
+++ b/Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml

@@ -35,7 +35,7 @@ properties:
     maxItems: 5
     items:
       enum: [ dbi, dbi2, config, atu, app, elbi, mgmt, ctrl, parf, cfg, link,
-              ulreg, smu, mpu, apb, phy ]
+              ulreg, smu, mpu, apb, phy, mem-window ]
 
   num-lanes:
     description: |

diff --git a/Documentation/devicetree/bindings/pci/st,st-pcie.yaml b/Documentation/devicetree/bindings/pci/st,st-pcie.yaml
new file mode 100644
index 000000000000..2fa686d573c3
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/st,st-pcie.yaml

@@ -0,0 +1,112 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/st,st-pcie.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PCIe RC controller on ST STi platform
+
+maintainers:
+  - Alain Volmat <avolmat@me.com>
+
+allOf:
+  - $ref: /schemas/pci/snps,dw-pcie.yaml#
+
+properties:
+  compatible:
+    const: st,stih407-pcie
+
+  reg:
+    items:
+      - description: Controller control and status registers.
+      - description: PCIe configuration registers.
+      - description: Memory made available to the controller
+
+  reg-names:
+    items:
+      - const: dbi
+      - const: config
+      - const: mem-window