* [PATCH] dt-bindings: net: wireless: Convert WL1251 to DT schema
@ 2026-08-15 8:33 Eduard Bostina
2026-08-31 13:22 ` Rob Herring
0 siblings, 1 reply; 2+ messages in thread
From: Eduard Bostina @ 2026-08-15 8:33 UTC (permalink / raw)
To: Conor Dooley, devicetree, Eduard Bostina, Johannes Berg,
Krzysztof Kozlowski, linux-kernel, linux-wireless, Rob Herring
Cc: daniel.baluta, simona.toaca, goledhruva, m-chawdhry
Convert the Texas Instruments WL1251 Wireless LAN Controller bindings to DT
schema.
During the conversion, the following updates were made:
- Added the 'clocks' property. It was missing from the txt binding but
is used in device trees (omap3-n900.dts).
- Added 'spi-cpol' and 'spi-cpha'. These were present in the original
txt binding's example but missing from its property list.
- 'vio-supply' and 'spi-max-frequency' are no longer required. The txt
binding listed them as required, but they are only applicable when
the chip is connected via SPI.
Signed-off-by: Eduard Bostina <egbostina@gmail.com>
---
.../bindings/net/wireless/ti,wl1251.txt | 64 -------------
.../bindings/net/wireless/ti,wl1251.yaml | 92 +++++++++++++++++++
2 files changed, 92 insertions(+), 64 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt
create mode 100644 Documentation/devicetree/bindings/net/wireless/ti,wl1251.yaml
diff --git a/Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt b/Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt
deleted file mode 100644
index 88fd28d15eac..000000000000
--- a/Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt
+++ /dev/null
@@ -1,64 +0,0 @@
-* Texas Instruments wl1251 wireless lan controller
-
-The wl1251 chip can be connected via SPI or via SDIO. This
-document describes the binding for the SPI connected chip.
-
-Required properties:
-- compatible : Should be "ti,wl1251"
-- reg : Chip select address of device
-- spi-max-frequency : Maximum SPI clocking speed of device in Hz
-- interrupts : Should contain interrupt line
-- vio-supply : phandle to regulator providing VIO
-
-Optional properties:
-- ti,wl1251-has-eeprom : boolean, the wl1251 has an eeprom connected, which
- provides configuration data (calibration, MAC, ...)
-- ti,power-gpio : GPIO connected to chip's PMEN pin if operated in
- SPI mode
-- Please consult Documentation/devicetree/bindings/spi/spi-bus.txt
- for optional SPI connection related properties,
-
-Examples:
-
-&spi1 {
- wl1251@0 {
- compatible = "ti,wl1251";
-
- reg = <0>;
- spi-max-frequency = <48000000>;
- spi-cpol;
- spi-cpha;
-
- interrupt-parent = <&gpio2>;
- interrupts = <10 IRQ_TYPE_NONE>; /* gpio line 42 */
-
- vio-supply = <&vio>;
- ti,power-gpio = <&gpio3 23 GPIO_ACTIVE_HIGH>; /* 87 */
- };
-};
-
-&mmc3 {
- vmmc-supply = <&wlan_en>;
-
- bus-width = <4>;
- non-removable;
- ti,non-removable;
- cap-power-off-card;
-
- pinctrl-names = "default";
- pinctrl-0 = <&mmc3_pins>;
-
- #address-cells = <1>;
- #size-cells = <0>;
-
- wlan: wifi@1 {
- compatible = "ti,wl1251";
-
- reg = <1>;
-
- interrupt-parent = <&gpio1>;
- interrupts = <21 IRQ_TYPE_LEVEL_HIGH>; /* GPIO_21 */
-
- ti,wl1251-has-eeprom;
- };
-};
diff --git a/Documentation/devicetree/bindings/net/wireless/ti,wl1251.yaml b/Documentation/devicetree/bindings/net/wireless/ti,wl1251.yaml
new file mode 100644
index 000000000000..1f46f1235035
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/ti,wl1251.yaml
@@ -0,0 +1,92 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/wireless/ti,wl1251.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Texas Instruments WL1251 Wireless LAN Controller
+
+maintainers:
+ - Eduard Bostina <egbostina@gmail.com>
+
+properties:
+ compatible:
+ const: ti,wl1251
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ vio-supply:
+ description:
+ Phandle to the regulator providing VIO. Required when connected via SPI.
+
+ ti,power-gpio:
+ maxItems: 1
+ description:
+ GPIO connected to chip's PMEN pin if operated in SPI mode.
+
+ ti,wl1251-has-eeprom:
+ type: boolean
+ description:
+ The wl1251 has an EEPROM connected, which provides configuration
+ data (calibration, MAC, ...).
+
+ clocks:
+ maxItems: 1
+
+ spi-max-frequency: true
+ spi-cpol: true
+ spi-cpha: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+allOf:
+ - $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
+ spi1 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ wl1251@0 {
+ compatible = "ti,wl1251";
+ reg = <0>;
+ spi-max-frequency = <48000000>;
+ spi-cpol;
+ spi-cpha;
+ interrupt-parent = <&gpio2>;
+ interrupts = <10 IRQ_TYPE_NONE>;
+ vio-supply = <&vio>;
+ ti,power-gpio = <&gpio3 23 GPIO_ACTIVE_HIGH>;
+ };
+ };
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ mmc3 {
+ vmmc-supply = <&wlan_en>;
+ bus-width = <4>;
+ non-removable;
+ ti,non-removable;
+ cap-power-off-card;
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc3_pins>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ wifi@1 {
+ compatible = "ti,wl1251";
+ reg = <1>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <21 IRQ_TYPE_LEVEL_HIGH>;
+ ti,wl1251-has-eeprom;
+ };
+ };
--
2.43.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] dt-bindings: net: wireless: Convert WL1251 to DT schema
2026-08-15 8:33 [PATCH] dt-bindings: net: wireless: Convert WL1251 to DT schema Eduard Bostina
@ 2026-08-31 13:22 ` Rob Herring
0 siblings, 0 replies; 2+ messages in thread
From: Rob Herring @ 2026-08-31 13:22 UTC (permalink / raw)
To: Eduard Bostina
Cc: Conor Dooley, devicetree, Johannes Berg, Krzysztof Kozlowski,
linux-kernel, linux-wireless, daniel.baluta, simona.toaca,
goledhruva, m-chawdhry
On Sat, Aug 15, 2026 at 08:33:26AM +0000, Eduard Bostina wrote:
> Convert the Texas Instruments WL1251 Wireless LAN Controller bindings to DT
> schema.
>
> During the conversion, the following updates were made:
> - Added the 'clocks' property. It was missing from the txt binding but
> is used in device trees (omap3-n900.dts).
> - Added 'spi-cpol' and 'spi-cpha'. These were present in the original
> txt binding's example but missing from its property list.
> - 'vio-supply' and 'spi-max-frequency' are no longer required. The txt
> binding listed them as required, but they are only applicable when
> the chip is connected via SPI.
>
> Signed-off-by: Eduard Bostina <egbostina@gmail.com>
> ---
> .../bindings/net/wireless/ti,wl1251.txt | 64 -------------
> .../bindings/net/wireless/ti,wl1251.yaml | 92 +++++++++++++++++++
> 2 files changed, 92 insertions(+), 64 deletions(-)
> delete mode 100644 Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt
> create mode 100644 Documentation/devicetree/bindings/net/wireless/ti,wl1251.yaml
>
> diff --git a/Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt b/Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt
> deleted file mode 100644
> index 88fd28d15eac..000000000000
> --- a/Documentation/devicetree/bindings/net/wireless/ti,wl1251.txt
> +++ /dev/null
> @@ -1,64 +0,0 @@
> -* Texas Instruments wl1251 wireless lan controller
> -
> -The wl1251 chip can be connected via SPI or via SDIO. This
> -document describes the binding for the SPI connected chip.
> -
> -Required properties:
> -- compatible : Should be "ti,wl1251"
> -- reg : Chip select address of device
> -- spi-max-frequency : Maximum SPI clocking speed of device in Hz
> -- interrupts : Should contain interrupt line
> -- vio-supply : phandle to regulator providing VIO
> -
> -Optional properties:
> -- ti,wl1251-has-eeprom : boolean, the wl1251 has an eeprom connected, which
> - provides configuration data (calibration, MAC, ...)
> -- ti,power-gpio : GPIO connected to chip's PMEN pin if operated in
> - SPI mode
> -- Please consult Documentation/devicetree/bindings/spi/spi-bus.txt
> - for optional SPI connection related properties,
> -
> -Examples:
> -
> -&spi1 {
> - wl1251@0 {
> - compatible = "ti,wl1251";
> -
> - reg = <0>;
> - spi-max-frequency = <48000000>;
> - spi-cpol;
> - spi-cpha;
> -
> - interrupt-parent = <&gpio2>;
> - interrupts = <10 IRQ_TYPE_NONE>; /* gpio line 42 */
> -
> - vio-supply = <&vio>;
> - ti,power-gpio = <&gpio3 23 GPIO_ACTIVE_HIGH>; /* 87 */
> - };
> -};
> -
> -&mmc3 {
> - vmmc-supply = <&wlan_en>;
> -
> - bus-width = <4>;
> - non-removable;
> - ti,non-removable;
> - cap-power-off-card;
> -
> - pinctrl-names = "default";
> - pinctrl-0 = <&mmc3_pins>;
> -
> - #address-cells = <1>;
> - #size-cells = <0>;
> -
> - wlan: wifi@1 {
> - compatible = "ti,wl1251";
> -
> - reg = <1>;
> -
> - interrupt-parent = <&gpio1>;
> - interrupts = <21 IRQ_TYPE_LEVEL_HIGH>; /* GPIO_21 */
> -
> - ti,wl1251-has-eeprom;
> - };
> -};
> diff --git a/Documentation/devicetree/bindings/net/wireless/ti,wl1251.yaml b/Documentation/devicetree/bindings/net/wireless/ti,wl1251.yaml
> new file mode 100644
> index 000000000000..1f46f1235035
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/wireless/ti,wl1251.yaml
> @@ -0,0 +1,92 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/wireless/ti,wl1251.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Texas Instruments WL1251 Wireless LAN Controller
> +
> +maintainers:
> + - Eduard Bostina <egbostina@gmail.com>
> +
> +properties:
> + compatible:
> + const: ti,wl1251
> +
> + reg:
> + maxItems: 1
> +
> + interrupts:
> + maxItems: 1
> +
> + vio-supply:
> + description:
> + Phandle to the regulator providing VIO. Required when connected via SPI.
> +
> + ti,power-gpio:
> + maxItems: 1
> + description:
> + GPIO connected to chip's PMEN pin if operated in SPI mode.
> +
> + ti,wl1251-has-eeprom:
> + type: boolean
> + description:
> + The wl1251 has an EEPROM connected, which provides configuration
> + data (calibration, MAC, ...).
> +
> + clocks:
> + maxItems: 1
> +
> + spi-max-frequency: true
> + spi-cpol: true
> + spi-cpha: true
> +
> +required:
> + - compatible
> + - reg
> + - interrupts
> +
> +allOf:
> + - $ref: /schemas/spi/spi-peripheral-props.yaml#
> +
> +unevaluatedProperties: false
> +
> +examples:
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + #include <dt-bindings/gpio/gpio.h>
> + spi1 {
spi {
> + #address-cells = <1>;
> + #size-cells = <0>;
> + wl1251@0 {
> + compatible = "ti,wl1251";
> + reg = <0>;
> + spi-max-frequency = <48000000>;
> + spi-cpol;
> + spi-cpha;
> + interrupt-parent = <&gpio2>;
> + interrupts = <10 IRQ_TYPE_NONE>;
> + vio-supply = <&vio>;
> + ti,power-gpio = <&gpio3 23 GPIO_ACTIVE_HIGH>;
> + };
> + };
> + - |
> + #include <dt-bindings/interrupt-controller/irq.h>
> + mmc3 {
mmc {
> + vmmc-supply = <&wlan_en>;
> + bus-width = <4>;
> + non-removable;
> + ti,non-removable;
> + cap-power-off-card;
> + pinctrl-names = "default";
> + pinctrl-0 = <&mmc3_pins>;
Drop all these. Not relevant to this binding.
> + #address-cells = <1>;
> + #size-cells = <0>;
> + wifi@1 {
> + compatible = "ti,wl1251";
> + reg = <1>;
> + interrupt-parent = <&gpio1>;
> + interrupts = <21 IRQ_TYPE_LEVEL_HIGH>;
> + ti,wl1251-has-eeprom;
> + };
> + };
> --
> 2.43.0
>
>
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