| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame^] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/net/ti,bluetooth.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Texas Instruments Bluetooth Chips |
| 8 | |
| 9 | maintainers: |
| 10 | - David Lechner <david@lechnology.com> |
| 11 | |
| 12 | description: | |
| 13 | This documents the binding structure and common properties for serial |
| 14 | attached TI Bluetooth devices. The following chips are included in this |
| 15 | binding: |
| 16 | |
| 17 | * TI CC256x Bluetooth devices |
| 18 | * TI WiLink 7/8 (wl12xx/wl18xx) Shared Transport BT/FM/GPS devices |
| 19 | |
| 20 | TI WiLink devices have a UART interface for providing Bluetooth, FM radio, |
| 21 | and GPS over what's called "shared transport". The shared transport is |
| 22 | standard BT HCI protocol with additional channels for the other functions. |
| 23 | |
| 24 | TI WiLink devices also have a separate WiFi interface as described in |
| 25 | wireless/ti,wlcore.yaml. |
| 26 | |
| 27 | This bindings follows the UART slave device binding in ../serial/serial.yaml. |
| 28 | |
| 29 | properties: |
| 30 | compatible: |
| 31 | enum: |
| 32 | - ti,cc2560 |
| 33 | - ti,wl1271-st |
| 34 | - ti,wl1273-st |
| 35 | - ti,wl1281-st |
| 36 | - ti,wl1283-st |
| 37 | - ti,wl1285-st |
| 38 | - ti,wl1801-st |
| 39 | - ti,wl1805-st |
| 40 | - ti,wl1807-st |
| 41 | - ti,wl1831-st |
| 42 | - ti,wl1835-st |
| 43 | - ti,wl1837-st |
| 44 | |
| 45 | enable-gpios: |
| 46 | maxItems: 1 |
| 47 | |
| 48 | vio-supply: |
| 49 | description: Vio input supply (1.8V) |
| 50 | |
| 51 | vbat-supply: |
| 52 | description: Vbat input supply (2.9-4.8V) |
| 53 | |
| 54 | clocks: |
| 55 | maxItems: 1 |
| 56 | |
| 57 | clock-names: |
| 58 | items: |
| 59 | - const: ext_clock |
| 60 | |
| 61 | max-speed: |
| 62 | default: 3000000 |
| 63 | |
| 64 | nvmem-cells: |
| 65 | maxItems: 1 |
| 66 | description: |
| 67 | Nvmem data cell that contains a 6 byte BD address with the most |
| 68 | significant byte first (big-endian). |
| 69 | |
| 70 | nvmem-cell-names: |
| 71 | items: |
| 72 | - const: bd-address |
| 73 | |
| 74 | required: |
| 75 | - compatible |
| 76 | |
| 77 | additionalProperties: false |
| 78 | |
| 79 | examples: |
| 80 | - | |
| 81 | #include <dt-bindings/gpio/gpio.h> |
| 82 | |
| 83 | serial { |
| 84 | bluetooth { |
| 85 | compatible = "ti,wl1835-st"; |
| 86 | enable-gpios = <&gpio1 7 GPIO_ACTIVE_HIGH>; |
| 87 | clocks = <&clk32k_wl18xx>; |
| 88 | clock-names = "ext_clock"; |
| 89 | nvmem-cells = <&bd_address>; |
| 90 | nvmem-cell-names = "bd-address"; |
| 91 | }; |
| 92 | }; |