MediaTek SoC built-in Bluetooth Devices ================================== This device is a serial attached device to BTIF device and thus it must be a child node of the serial node with BTIF. The dt-bindings details for BTIF device can be known via Documentation/devicetree/bindings/serial/8250.txt. Required properties: - compatible: Must be "mediatek,mt7622-bluetooth": for MT7622 SoC - clocks: Should be the clock specifiers corresponding to the entry in clock-names property. - clock-names: Should contain "ref" entries. - power-domains: Phandle to the power domain that the device is part of Example: btif: serial@1100c000 { compatible = "mediatek,mt7622-btif", "mediatek,mtk-btif"; reg = <0 0x1100c000 0 0x1000>; interrupts = ; clocks = <&pericfg CLK_PERI_BTIF_PD>; clock-names = "main"; reg-shift = <2>; reg-io-width = <4>; bluetooth { compatible = "mediatek,mt7622-bluetooth"; power-domains = <&scpsys MT7622_POWER_DOMAIN_WB>; clocks = <&clk25m>; clock-names = "ref"; }; }; MediaTek UART based Bluetooth Devices ================================== This device is a serial attached device to UART device and thus it must be a child node of the serial node with UART. Please refer to the following documents for generic properties: Documentation/devicetree/bindings/serial/slave-device.txt Required properties: - compatible: Must be "mediatek,mt7663u-bluetooth": for MT7663U device "mediatek,mt7668u-bluetooth": for MT7668U device - vcc-supply: Main voltage regulator - pinctrl-names: Should be "default", "runtime" - pinctrl-0: Should contain UART RXD low when the device is powered up to enter proper bootstrap mode. - pinctrl-1: Should contain UART mode pin ctrl Optional properties: - reset-gpios: GPIO used to reset the device whose initial state keeps low, if the GPIO is missing, then board-level design should be guaranteed. - current-speed: Current baud rate of the device whose defaults to 921600 Example: uart1_pins_boot: uart1-default { pins-dat { pinmux = ; output-low; }; }; uart1_pins_runtime: uart1-runtime { pins-dat { pinmux = , ; }; }; uart1: serial@11003000 { compatible = "mediatek,mt7623-uart", "mediatek,mt6577-uart"; reg = <0 0x11003000 0 0x400>; interrupts = ; clocks = <&pericfg CLK_PERI_UART1_SEL>, <&pericfg CLK_PERI_UART1>; clock-names = "baud", "bus"; bluetooth { compatible = "mediatek,mt7663u-bluetooth"; vcc-supply = <®_5v>; reset-gpios = <&pio 24 GPIO_ACTIVE_LOW>; pinctrl-names = "default", "runtime"; pinctrl-0 = <&uart1_pins_boot>; pinctrl-1 = <&uart1_pins_runtime>; current-speed = <921600>; }; };