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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/serial/silabs,si4455.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Silicon Labs Si4455 device tree bindings
+
+maintainers:
+ - József Horváth <info@ministro.hu>
+
+description:
+ This document is for describing the required device tree parameters for si4455 serial driver.
+ The si4455 driver tries to represent the Silicon Labs Si4455 sub-GHz transceiver device
+ like a serial port. The required parameters for proper operation are described below.
+ https://www.silabs.com/documents/public/data-sheets/Si4455.pdf
+
+allOf:
+ - $ref: "serial.yaml#"
+
+properties:
+ compatible:
+ const: silabs,si4455
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ spi-max-frequency:
+ description: maximum clock frequency on SPI port
+ maximum: 500000
+
+ shutdown-gpios:
+ description: gpio pin for SDN
+ maxItems: 1
+
+ silabs,package-size:
+ description:
+ Radio payload length, variable packet length is not supported by driver.
+ This value should equal with EZConfig payload length.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 64
+ minimum: 1
+
+ silabs,tx-channel:
+ description:
+ Radio transmit channel selection.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 255
+ minimum: 0
+
+ silabs,rx-channel:
+ description:
+ Radio receive channel selection.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ maximum: 255
+ minimum: 0
+
+ silabs,tx-timeout-ms:
+ description:
+ Radio transmit timeout(ms)
+ maximum: 1000
+ minimum: 1
+
+ firmware-name:
+ description:
+ Radio configuration data file name.
+ $ref: /schemas/types.yaml#/definitions/string
+ items:
+ pattern: ^[0-9a-z\._\-]{1,255}$
+
+required:
+ - reg
+ - interrupts
+ - spi-max-frequency
+ - shutdown-gpios
+ - silabs,package-size
+ - silabs,tx-channel
+ - silabs,rx-channel
+ - firmware-name
+
+additionalProperties: false
+
+examples:
+ - |
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ si4455_0: serial@0 {
+ compatible = "silabs,si4455";
+ reg = <0>;
+ interrupt-parent = <&gpio>;
+ interrupts = <7 2>;
+ shutdown-gpios = <&gpio 26 1>;
+ spi-max-frequency = <300000>;
+ silabs,package-size = <30>;
+ silabs,tx-channel = <1>;
+ silabs,rx-channel = <2>;
+ firmware-name = "si4455_spi0_0.ez.bin";
+ };
+ };
+...
This is a device tree schema for serial port driver for Silicon Labs Si4455 Sub-GHz transciver. Datasheet: https://www.silabs.com/documents/public/data-sheets/Si4455.pdf Guide: Documentation/driver-api/serial/si4455.rst Signed-off-by: Jozsef Horvath <info@ministro.hu> --- changes v1: - fixed: dt: bindings: rename sdn-gpios to shutdown-gpios changes v3: - fixed: dt: bindings: silabs,si4455: more detailed description - added: dt: bindings: silabs,si4455: properties silabs,package-size, silabs,tx-channel, silabs,rx-channel, silabs,ez-config changes v4: - fixed: dt: bindings: silabs,si4455: $id from http://devicetree.org/schemas/serial/silabs,si4455.yaml to http://devicetree.org/schemas/staging/serial/silabs,si4455.yaml changes v5: - fixed: dt: bindings: silabs,si4455: $id from http://devicetree.org/schemas/staging/serial/silabs,si4455.yaml to http://devicetree.org/schemas/serial/silabs,si4455.yaml - fixed: dt: bindings: silabs,si4455: serial.yaml reference added changes v7: - added: dt: bindings: silabs,si4455: silabs,tx-timeout property definition changes v8: - fixed: dt: bindings: silabs,si4455: silabs,tx-timeout property name changed to silabs,tx-timeout-ms --- .../bindings/serial/silabs,si4455.yaml | 104 ++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 Documentation/devicetree/bindings/serial/silabs,si4455.yaml