Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 71 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/serial/renesas,sci.yaml b/Documentation/devicetree/bindings/serial/renesas,sci.yaml
new file mode 100644
index 000000000..22ed2f0b1
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/renesas,sci.yaml
@@ -0,0 +1,71 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/serial/renesas,sci.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Renesas Serial Communication Interface
+
+maintainers:
+  - Geert Uytterhoeven <geert+renesas@glider.be>
+
+allOf:
+  - $ref: serial.yaml#
+
+properties:
+  compatible:
+    const: renesas,sci
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    items:
+      - description: Error interrupt
+      - description: Receive buffer full interrupt
+      - description: Transmit buffer empty interrupt
+      - description: Transmit end interrupt
+
+  interrupt-names:
+    items:
+      - const: eri
+      - const: rxi
+      - const: txi
+      - const: tei
+
+  clocks:
+    minItems: 1
+    maxItems: 2
+
+  clock-names:
+    minItems: 1
+    maxItems: 2
+    items:
+      enum:
+        - fck # UART functional clock
+        - sck # optional external clock input
+
+  uart-has-rtscts: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    aliases {
+            serial0 = &sci0;
+    };
+
+    sci0: serial@ffff78 {
+            compatible = "renesas,sci";
+            reg = <0xffff78 8>;
+            interrupts = <88 0>, <89 0>, <90 0>, <91 0>;
+            clocks = <&fclk>;
+            clock-names = "fck";
+    };