[PATCH net-next 1/2] dt-bindings: net: dp83822: Add TI dp83822 phy

[Dan Murphy]

Add a dt binding for the TI dp83822 ethernet phy device.

CC: Rob Herring <robh+dt@xxxxxxxxxx>
Signed-off-by: Dan Murphy <dmurphy@xxxxxx>
---
 .../devicetree/bindings/net/ti,dp83822.yaml   | 49 +++++++++++++++++++
 1 file changed, 49 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/ti,dp83822.yaml

diff --git a/Documentation/devicetree/bindings/net/ti,dp83822.yaml b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
new file mode 100644
index 000000000000..60afd43ad3b6
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/ti,dp83822.yaml
@@ -0,0 +1,49 @@
+# SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
+# Copyright (C) 2020 Texas Instruments Incorporated
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/net/ti,dp83822.yaml#";
+$schema: "http://devicetree.org/meta-schemas/core.yaml#";
+
+title: TI DP83822 ethernet PHY
+
+allOf:
+  - $ref: "ethernet-controller.yaml#"
+
+maintainers:
+  - Dan Murphy <dmurphy@xxxxxx>
+
+description: |
+  The DP83822 is a low-power, single-port, 10/100 Mbps Ethernet PHY. It
+  provides all of the physical layer functions needed to transmit and receive
+  data over standard, twisted-pair cables or to connect to an external,
+  fiber-optic transceiver. Additionally, the DP83822 provides flexibility to
+  connect to a MAC through a standard MII, RMII, or RGMII interface
+
+  Specifications about the charger can be found at:
+    http://www.ti.com/lit/ds/symlink/dp83822i.pdf
+
+properties:
+  reg:
+    maxItems: 1
+
+  ti,signal-polarity-low:
+    type: boolean
+    description: |
+       DP83822 PHY in Fiber mode only.
+       Sets the DP83822 to detect a link drop condition when the signal goes
+       high.  If not set then link drop will occur when the signal goes low.
+
+required:
+  - reg
+
+examples:
+  - |
+    mdio0 {
+      #address-cells = <1>;
+      #size-cells = <0>;
+      ethphy0: ethernet-phy@0 {
+        reg = <0>;
+        ti,signal-polarity-low;
+      };
+    };
-- 
2.26.2