Re: [PATCH v7,2/2] dt: bindings: add silabs,si4455 schema
From: Rob Herring <robh@kernel.org>
Date: 2021-01-12 00:45:28
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linux-serial, lkml
On Tue, Jan 05, 2021 at 10:30:29AM +0000, József Horváth wrote:
quoted hunk ↗ jump to hunk
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 <redacted> --- 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: $id from http://devicetree.org/schemas/staging/serial/silabs,si4455.yaml to http://devicetree.org/schemas/serial/silabs,si4455.yaml - fixed: dt: bindings: silabs,si4455: serial.yaml reference added changes v7: - added: dt: bindings: silabs,si4455: silabs,tx-timeout property definition --- .../bindings/serial/silabs,si4455.yaml | 105 ++++++++++++++++++ 1 file changed, 105 insertions(+) create mode 100644 Documentation/devicetree/bindings/serial/silabs,si4455.yamldiff --git a/Documentation/devicetree/bindings/serial/silabs,si4455.yaml b/Documentation/devicetree/bindings/serial/silabs,si4455.yaml new file mode 100644 index 000000000000..8ba4956064b4 --- /dev/null +++ b/Documentation/devicetree/bindings/serial/silabs,si4455.yaml@@ -0,0 +1,105 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$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@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: + 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