On Tue, Jan 05, 2021 at 10:30:29AM +0000, József Horváth wrote: > 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) Use a unit suffix as defined in property-units.txt. > + $ref: /schemas/types.yaml#/definitions/uint32 With that, you can drop the type. > + 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 >
