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