1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/net/bluetooth/mediatek,mt7921s-bluetooth.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: MediaTek MT7921S Bluetooth
8
9 maintainers:
10 - Sean Wang <sean.wang@mediatek.com>
11
12 description:
13 MT7921S is an SDIO-attached dual-radio WiFi+Bluetooth Combo chip; each
14 function is its own SDIO function on a shared SDIO interface. The chip
15 has two dedicated reset lines, one for each function core.
16 This binding only covers the Bluetooth SDIO function, with one device
17 node describing only this SDIO function.
18
19 allOf:
20 - $ref: bluetooth-controller.yaml#
21
22 properties:
23 compatible:
24 enum:
25 - mediatek,mt7921s-bluetooth
26
27 reg:
28 const: 2
29
30 reset-gpios:
31 maxItems: 1
32 description:
33 An active-low reset line for the Bluetooth core; on typical M.2
34 key E modules this is the W_DISABLE2# pin.
35
36 required:
37 - compatible
38 - reg
39
40 unevaluatedProperties: false
41
42 examples:
43 - |
44 #include <dt-bindings/gpio/gpio.h>
45
46 mmc {
47 #address-cells = <1>;
48 #size-cells = <0>;
49
50 bluetooth@2 {
51 compatible = "mediatek,mt7921s-bluetooth";
52 reg = <2>;
53 reset-gpios = <&pio 8 GPIO_ACTIVE_LOW>;
54 };
55 };
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