[PATCH 3/8] dt-bindings: phy: Document PCIe PHY in EcoNet EN751221 and EN7528

[Caleb James DeLisle <cjd@cjdns.fr>]

EN751221 and EN7528 SoCs have two PCIe slots, and each one has a
PHY which behaves slightly differently because one slot is Gen1/Gen2
while the other is Gen1 only.

Signed-off-by: Caleb James DeLisle <cjd@cjdns.fr>
---
 .../phy/econet,en751221-pcie-phy.yaml         | 57 +++++++++++++++++++
 MAINTAINERS                                   |  6 ++
 2 files changed, 63 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/econet,en751221-pcie-phy.yaml

diff --git a/Documentation/devicetree/bindings/phy/econet,en751221-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/econet,en751221-pcie-phy.yaml
new file mode 100644
index 000000000000..8e1d3c791c6e
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/econet,en751221-pcie-phy.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/econet,en751221-pcie-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: EcoNet PCI-Express PHY for EcoNet EN751221 and EN7528
+
+maintainers:
+  - Caleb James DeLisle <cjd@cjdns.fr>
+
+description:
+  The PCIe PHY supports physical layer functionality for PCIe Gen1 and
+  Gen1/Gen2 ports. On these SoCs, port 0 is a Gen1-only port while
+  port 1 is Gen1/Gen2 capable.
+
+properties:
+  compatible:
+    enum:
+      - econet,en751221-pcie-phy0
+      - econet,en751221-pcie-phy1
+      - econet,en7528-pcie-phy0
+      - econet,en7528-pcie-phy1
+
+  reg:
+    maxItems: 1
+
+  "#phy-cells":
+    const: 0
+
+required:
+  - compatible
+  - reg
+  - '#phy-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/phy/phy.h>
+    soc {
+      #address-cells = <1>;
+      #size-cells = <1>;
+
+      pcie_phy0: pcie-phy@1faf2000 {
+        compatible = "econet,en7528-pcie-phy0";
+        reg = <0x1faf2000 0x1000>;
+        #phy-cells = <0>;
+      };
+
+      pcie_phy1: pcie-phy@1fac0000 {
+        compatible = "econet,en7528-pcie-phy1";
+        reg = <0x1fac0000 0x1000>;
+        #phy-cells = <0>;
+      };
+    };
+...
diff --git a/MAINTAINERS b/MAINTAINERS
index 56cf73ce91b8..ae053b1f174f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9123,6 +9123,12 @@ F:	drivers/irqchip/irq-econet-en751221.c
 F:	include/dt-bindings/clock/econet,en751221-scu.h
 F:	include/dt-bindings/reset/econet,en751221-scu.h
 
+ECONET PCIE PHY DRIVER
+M:	Caleb James DeLisle <cjd@cjdns.fr>
+L:	linux-mips@vger.kernel.org
+S:	Maintained
+F:	Documentation/devicetree/bindings/phy/econet,en751221-pcie-phy.yaml
+
 ECRYPT FILE SYSTEM
 M:	Tyler Hicks <code@tyhicks.com>
 L:	ecryptfs@vger.kernel.org
-- 
2.39.5