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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/net/broadcom-bluetooth.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Broadcom Bluetooth Chips
maintainers:
- Linus Walleij <linus.walleij@linaro.org>
description:
This binding describes Broadcom UART-attached bluetooth chips.
properties:
compatible:
enum:
- brcm,bcm20702a1
- brcm,bcm4329-bt
- brcm,bcm4330-bt
- brcm,bcm4334-bt
- brcm,bcm43438-bt
- brcm,bcm4345c5
- brcm,bcm43540-bt
- brcm,bcm4335a0
shutdown-gpios:
maxItems: 1
description: GPIO specifier for the line BT_REG_ON used to
power on the BT module
reset-gpios:
maxItems: 1
description: GPIO specifier for the line BT_RST_N used to
reset the BT module. This should be marked as
GPIO_ACTIVE_LOW.
device-wakeup-gpios:
maxItems: 1
description: GPIO specifier for the line BT_WAKE used to
wakeup the controller. This is using the BT_GPIO_0
pin on the chip when in use.
host-wakeup-gpios:
maxItems: 1
deprecated: true
description: GPIO specifier for the line HOST_WAKE used
to wakeup the host processor. This is using he BT_GPIO_1
pin on the chip when in use. This is deprecated and replaced
by interrupts and "host-wakeup" interrupt-names
clocks:
minItems: 1
maxItems: 2
description: 1 or 2 clocks as defined in clock-names below,
in that order
clock-names:
description: Names of the 1 to 2 supplied clocks
oneOf:
- const: extclk
deprecated: true
description: Deprecated in favor of txco
- const: txco
description: >
external reference clock (not a standalone crystal)
- const: lpo
description: >
external low power 32.768 kHz clock
- items:
- const: txco
- const: lpo
vbat-supply:
description: phandle to regulator supply for VBAT
vddio-supply:
description: phandle to regulator supply for VDDIO
brcm,bt-pcm-int-params:
$ref: /schemas/types.yaml#/definitions/uint8-array
minItems: 5
maxItems: 5
description: |-
configure PCM parameters via a 5-byte array:
sco-routing: 0 = PCM, 1 = Transport, 2 = Codec, 3 = I2S
pcm-interface-rate: 128KBps, 256KBps, 512KBps, 1024KBps, 2048KBps
pcm-frame-type: short, long
pcm-sync-mode: slave, master
pcm-clock-mode: slave, master
interrupts:
items:
- description: Handle to the line HOST_WAKE used to wake
up the host processor. This uses the BT_GPIO_1 pin on
the chip when in use.
interrupt-names:
items:
- const: host-wakeup
max-speed: true
current-speed: true
required:
- compatible
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/interrupt-controller/irq.h>
uart {
uart-has-rtscts;
bluetooth {
compatible = "brcm,bcm4330-bt";
max-speed = <921600>;
brcm,bt-pcm-int-params = [01 02 00 01 01];
shutdown-gpios = <&gpio 30 GPIO_ACTIVE_HIGH>;
device-wakeup-gpios = <&gpio 7 GPIO_ACTIVE_HIGH>;
reset-gpios = <&gpio 9 GPIO_ACTIVE_LOW>;
interrupt-parent = <&gpio>;
interrupts = <8 IRQ_TYPE_EDGE_FALLING>;
};
};
|
