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: https://github.com/dministro/linux-serial-si4455 Signed-off-by: Jozsef Horvath <info@xxxxxxxxxxx> --- 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: $id from http://devicetree.org/schemas/staging/serial/silabs,si4455.yaml to http://devicetree.org/schemas/serial/silabs,si4455.yaml - fixed: dt: bindings: silabs,si4455: serial.yaml reference added changes v7: - added: dt: bindings: silabs,si4455: silabs,tx-timeout property definition --- .../bindings/serial/silabs,si4455.yaml | 105 ++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 Documentation/devicetree/bindings/serial/silabs,si4455.yaml diff --git a/Documentation/devicetree/bindings/serial/silabs,si4455.yaml b/Documentation/devicetree/bindings/serial/silabs,si4455.yaml new file mode 100644 index 000000000000..8ba4956064b4 --- /dev/null +++ b/Documentation/devicetree/bindings/serial/silabs,si4455.yaml @@ -0,0 +1,105 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$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@xxxxxxxxxxx> + +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: + description: + Radio transmit timeout(ms) + $ref: /schemas/types.yaml#/definitions/uint32 + 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"; + }; + }; +... -- 2.17.1
