Ultra-wideband (UWB) is a short-range wireless communication protocol. NXP has SR1XX family of UWB Subsystems (UWBS) devices. SR1XX SOCs are FiRa Compliant. SR1XX SOCs are flash less devices and they need Firmware Download on every device boot. More details on the SR1XX Family can be found at https://www.nxp.com/products/:UWB-TRIMENSION The sr1xx driver work the SR1XX Family of UWBS, and uses UWB Controller Interface (UCI). The corresponding details are available in the FiRa Consortium Website (https://www.firaconsortium.org/). Link: https://lore.kernel.org/r/20220527184351.3829543-2-manjunatha.venkatesh@xxxxxxx Signed-off-by: Manjunatha Venkatesh <manjunatha.venkatesh@xxxxxxx> --- Changes since v4: - Devicetree documentation updated as per the review comments - Text Aligment related issues are addressed .../bindings/uwb/nxp,uwb-sr1xx.yaml | 63 +++++++++++++++++++ 1 file changed, 63 insertions(+) create mode 100644 Documentation/devicetree/bindings/uwb/nxp,uwb-sr1xx.yaml diff --git a/Documentation/devicetree/bindings/uwb/nxp,uwb-sr1xx.yaml b/Documentation/devicetree/bindings/uwb/nxp,uwb-sr1xx.yaml new file mode 100644 index 000000000000..0f8c774b8306 --- /dev/null +++ b/Documentation/devicetree/bindings/uwb/nxp,uwb-sr1xx.yaml @@ -0,0 +1,63 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) + +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/uwb/nxp,uwb-sr1xx.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Ultra Wide Band(UWB)driver support for NXP SR1XX SOCs family + +description: The nxp-sr1xx driver works for the NXP SR1XX series of Ultra Wide + Band devices namely, SR150 and SR100T devices, and uses UWB Controller Interface (UCI). + The corresponding details are available in the FiRa Consortium Website. + (https://www.firaconsortium.org/). More details on the SR1XX Family can be + found at https://www.nxp.com/products/:UWB-TRIMENSION +maintainers: + - Manjunatha Venkatesh <manjunatha.venkatesh@xxxxxxx> + +properties: + compatible: + enum: + - nxp,sr1xx + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 45000000 + +required: + - compatible + - reg + - spi-max-frequency + +additionalProperties: false + +examples: + - | + /* for Raspberry Pi with pin control stuff for GPIO irq */ + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/gpio/gpio.h> + + fragment@1 { + target = <&spi0>; + __overlay__ { + /* needed to avoid dtc warning */ + #address-cells = <1>; + #size-cells = <0>; + status = "disabled"; + + sr1xx: sr1xx@0 { + compatible = "nxp,sr1xx"; + reg = <0>; /* CE0 */ + /* GPIO_24 (PIN 18) Host Irq*/ + nxp,sr1xx-irq-gpio = <&gpio 24 0>; + /* GPIO_18(PIN 12) Chip Enable*/ + nxp,sr1xx-ce-gpio = <&gpio 18 0>; + /* GPIO_23(PIN 16) Read Indication from Host to SR1xx*/ + nxp,sr1xx-ri-gpio = <&gpio 23 0>; + /*max supported frequency */ + spi-max-frequency = <20000000>; + }; + }; + }; -- 2.37.2
