dt-bindings: net: bluetooth: Add broadcom-bluetooth
Add binding document for serial bluetooth chips using Broadcom protocol. Signed-off-by: Loic Poulain <loic.poulain@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
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Broadcom Bluetooth Chips
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---------------------
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This documents the binding structure and common properties for serial
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attached Broadcom devices.
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Serial attached Broadcom devices shall be a child node of the host UART
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device the slave device is attached to.
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Required properties:
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- compatible: should contain one of the following:
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* "brcm,bcm43438-bt"
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Optional properties:
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- max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
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- shutdown-gpios: GPIO specifier, used to enable the BT module
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- device-wakeup-gpios: GPIO specifier, used to wakeup the controller
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- host-wakeup-gpios: GPIO specifier, used to wakeup the host processor
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- clocks: clock specifier if external clock provided to the controller
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- clock-names: should be "extclk"
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Example:
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&uart2 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart2_pins>;
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bluetooth {
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compatible = "brcm,bcm43438-bt";
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max-speed = <921600>;
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};
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};
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