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From:   Brenda Streiff <brenda.streiff@ni.com>
Cc:     Brenda Streiff <brenda.streiff@ni.com>,
        Gratian Crisan <gratian.crisan@ni.com>,
        Jason Smith <jason.smith@ni.com>,
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        Jiri Slaby <jirislaby@kernel.org>,
        linux-serial@vger.kernel.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH tty-next 1/2] dt-bindings: serial: ni,ni16650: add bindings
Date:   Wed, 29 Mar 2023 10:42:34 -0500
Message-Id: <20230329154235.615349-2-brenda.streiff@ni.com>
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Add bindings for the NI 16550 UART.

Signed-off-by: Brenda Streiff <brenda.streiff@ni.com>
Cc: Gratian Crisan <gratian.crisan@ni.com>
Cc: Jason Smith <jason.smith@ni.com>
---
 .../bindings/serial/ni,ni16550.yaml           | 53 +++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/serial/ni,ni16550.yaml

diff --git a/Documentation/devicetree/bindings/serial/ni,ni16550.yaml b/Documentation/devicetree/bindings/serial/ni,ni16550.yaml
new file mode 100644
index 000000000000..4ac1c96726f8
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/ni,ni16550.yaml
@@ -0,0 +1,53 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/ni,ni16550.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NI 16550 asynchronous serial interface (UART)
+
+maintainers:
+  - Brenda Streiff <brenda.streiff@ni.com>
+
+allOf:
+  - $ref: serial.yaml#
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - ni,ni16550
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clock-frequency: true
+
+  transceiver:
+    items:
+      - enum:
+          - RS-232
+          - RS-485
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clock-frequency
+
+unevaluatedProperties: false
+
+examples:
+  - |
+      serial@80000000 {
+        compatible = "ni,ni16550", "ns16550a";
+        reg = <0x80000000 0x8>;
+        interrupts = <0 30 4>;
+        clock-frequency = <58824000>;
+        transceiver = "RS-485";
+      };
+
+...
-- 
2.30.2