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Subject[PATCH v5 2/5] dt-bindings: serial: document esp32-uart
Date
Add documentation for the ESP32xx UART controllers.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
Changes v2->v3:
- add a reference to serial.yaml

Changes v1->v2:
- drop '|' from description
- change 'compatible' property type to enum
- drop label from the example node
- fix example indentation

.../bindings/serial/esp,esp32-uart.yaml | 51 +++++++++++++++++++
1 file changed, 51 insertions(+)
create mode 100644 Documentation/devicetree/bindings/serial/esp,esp32-uart.yaml

diff --git a/Documentation/devicetree/bindings/serial/esp,esp32-uart.yaml b/Documentation/devicetree/bindings/serial/esp,esp32-uart.yaml
new file mode 100644
index 000000000000..2a80ca997a0c
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/esp,esp32-uart.yaml
@@ -0,0 +1,51 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/esp,esp32-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ESP32xx UART controllers
+
+maintainers:
+ - Max Filippov <jcmvbkbc@gmail.com>
+
+description:
+ ESP32 UART controller is a part of the ESP32 SoC.
+ ESP32S3 UART controller is a part of the ESP32S3 SoC.
+ Both SoCs are produced by Espressif Systems Co. Ltd.
+
+allOf:
+ - $ref: serial.yaml#
+
+properties:
+ compatible:
+ enum:
+ - esp,esp32-uart
+ - esp,esp32s3-uart
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ serial@60000000 {
+ compatible = "esp,esp32s3-uart";
+ reg = <0x60000000 0x80>;
+ interrupts = <27 1 0>;
+ clocks = <&serial_clk>;
+ };
--
2.30.2
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