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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2020, Silicon Laboratories, Inc.
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/net/wireless/silabs,wfx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silicon Labs WFxxx devicetree bindings
+
+maintainers:
+ - Jérôme Pouiller <jerome.pouiller@silabs.com>
+
+description:
+ The WFxxx chip series can be connected via SPI or via SDIO.
+
+ For SDIO':'
+
+ The driver is able to detect a WFxxx chip on SDIO bus by matching its Vendor
+ ID and Product ID. However, driver will only provide limited features in
+ this case. Thus declaring WFxxx chip in device tree is recommended (and may
+ become mandatory in the future).
+
+ In addition, it is recommended to declare a mmc-pwrseq on SDIO host above
+ WFx. Without it, you may encounter issues with warm boot. The mmc-pwrseq
+ should be compatible with mmc-pwrseq-simple. Please consult
+ Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt for more
+ information.
+
+ For SPI':'
+
+ In add of the properties below, please consult
+ Documentation/devicetree/bindings/spi/spi-controller.yaml for optional SPI
+ related properties.
+
+ Note that in add of the properties below, the WFx driver also supports
+ `mac-address` and `local-mac-address` as described in
+ Documentation/devicetree/bindings/net/ethernet.txt
+
+properties:
+ compatible:
+ const: silabs,wf200
+ reg:
+ description:
+ When used on SDIO bus, <reg> must be set to 1. When used on SPI bus, it is
+ the chip select address of the device as defined in the SPI devices
+ bindings.
+ maxItems: 1
+ spi-max-frequency:
+ description: (SPI only) Maximum SPI clocking speed of device in Hz.
+ maxItems: 1
+ interrupts:
+ description: The interrupt line. Triggers IRQ_TYPE_LEVEL_HIGH and
+ IRQ_TYPE_EDGE_RISING are both supported by the chip and the driver. When
+ SPI is used, this property is required. When SDIO is used, the "in-band"
+ interrupt provided by the SDIO bus is used unless an interrupt is defined
+ in the Device Tree.
+ maxItems: 1
+ reset-gpios:
+ description: (SPI only) Phandle of gpio that will be used to reset chip
+ during probe. Without this property, you may encounter issues with warm
+ boot. (For legacy purpose, the gpio in inverted when compatible ==
+ "silabs,wfx-spi")
+
+ For SDIO, the reset gpio should declared using a mmc-pwrseq.
+ maxItems: 1
+ wakeup-gpios:
+ description: Phandle of gpio that will be used to wake-up chip. Without this
+ property, driver will disable most of power saving features.
+ maxItems: 1
+ config-file:
+ description: Use an alternative file as PDS. Default is `wf200.pds`. Only
+ necessary for development/debug purpose.
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ spi0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ wfx@0 {
+ compatible = "silabs,wf200";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wfx_irq &wfx_gpios>;
+ reg = <0>;
+ interrupts-extended = <&gpio 16 IRQ_TYPE_EDGE_RISING>;
+ wakeup-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>;
+ reset-gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+ spi-max-frequency = <42000000>;
+ };
+ };
+
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ wfx_pwrseq: wfx_pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wfx_reset>;
+ reset-gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+ };
+
+ mmc0 {
+ mmc-pwrseq = <&wfx_pwrseq>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ mmc@1 {
+ compatible = "silabs,wf200";
+ pinctrl-names = "default";
+ pinctrl-0 = <&wfx_wakeup>;
+ reg = <1>;
+ wakeup-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>;
+ };
+ };
+...
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-The WFxxx chip series can be connected via SPI or via SDIO.
-
-SPI
----
-
-You have to declare the WFxxx chip in your device tree.
-
-Required properties:
- - compatible: Should be "silabs,wf200"
- - reg: Chip select address of device
- - spi-max-frequency: Maximum SPI clocking speed of device in Hz
- - interrupts-extended: Should contain interrupt line (interrupt-parent +
- interrupt can also been used). Trigger should be `IRQ_TYPE_EDGE_RISING`.
-
-Optional properties:
- - reset-gpios: phandle of gpio that will be used to reset chip during probe.
- Without this property, you may encounter issues with warm boot.
- (Legacy: when compatible == "silabs,wfx-spi", the gpio is inverted.)
-
-Please consult Documentation/devicetree/bindings/spi/spi-bus.txt for optional
-SPI connection related properties,
-
-Example:
-
-&spi1 {
- wfx {
- compatible = "silabs,wf200";
- pinctrl-names = "default";
- pinctrl-0 = <&wfx_irq &wfx_gpios>;
- interrupts-extended = <&gpio 16 IRQ_TYPE_EDGE_RISING>;
- wakeup-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>;
- reset-gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
- reg = <0>;
- spi-max-frequency = <42000000>;
- };
-};
-
-
-SDIO
-----
-
-The driver is able to detect a WFxxx chip on SDIO bus by matching its Vendor ID
-and Product ID. However, driver will only provide limited features in this
-case. Thus declaring WFxxx chip in device tree is strongly recommended (and may
-become mandatory in the future).
-
-Required properties:
- - compatible: Should be "silabs,wf200"
- - reg: Should be 1
-
-In addition, it is recommended to declare a mmc-pwrseq on SDIO host above WFx.
-Without it, you may encounter issues with warm boot. mmc-pwrseq should be
-compatible with mmc-pwrseq-simple. Please consult
-Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt for more
-information.
-
-Example:
-
-/ {
- wfx_pwrseq: wfx_pwrseq {
- compatible = "mmc-pwrseq-simple";
- pinctrl-names = "default";
- pinctrl-0 = <&wfx_reset>;
- reset-gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
- };
-};
-
-&mmc1 {
- mmc-pwrseq = <&wfx_pwrseq>;
- #address-size = <1>;
- #size = <0>;
-
- mmc@1 {
- compatible = "silabs,wf200";
- reg = <1>;
- pinctrl-names = "default";
- pinctrl-0 = <&wfx_wakeup>;
- wakeup-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>;
- };
-};
-
-Note that #address-size and #size shoud already be defined in node mmc1, but it
-is rarely the case.
-
-Common properties
------------------
-
-Some properties are recognized either by SPI and SDIO versions:
- - wakeup-gpios: phandle of gpio that will be used to wake-up chip. Without
- this property, driver will disable most of power saving features.
- - config-file: Use an alternative file as PDS. Default is `wf200.pds`. Only
- necessary for development/debug purpose.
-
-WFx driver also supports `mac-address` and `local-mac-address` as described in
-Documentation/devicetree/bindings/net/ethernet.txt
-