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| -rw-r--r-- | Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt new file mode 100644 index 000000000..709ca6d51 --- /dev/null +++ b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt @@ -0,0 +1,69 @@ +Qualcomm Bluetooth Chips +--------------------- + +This documents the binding structure and common properties for serial +attached Qualcomm devices. + +Serial attached Qualcomm devices shall be a child node of the host UART +device the slave device is attached to. + +Required properties: + - compatible: should contain one of the following: + * "qcom,qca6174-bt" + * "qcom,qca9377-bt" + * "qcom,wcn3990-bt" + * "qcom,wcn3991-bt" + * "qcom,wcn3998-bt" + * "qcom,qca6390-bt" + +Optional properties for compatible string qcom,qca6174-bt: + + - enable-gpios: gpio specifier used to enable chip + - clocks: clock provided to the controller (SUSCLK_32KHZ) + - firmware-name: specify the name of nvm firmware to load + +Optional properties for compatible string qcom,qca9377-bt: + + - max-speed: see Documentation/devicetree/bindings/serial/serial.yaml + +Required properties for compatible string qcom,wcn399x-bt: + + - vddio-supply: VDD_IO supply regulator handle. + - vddxo-supply: VDD_XO supply regulator handle. + - vddrf-supply: VDD_RF supply regulator handle. + - vddch0-supply: VDD_CH0 supply regulator handle. + +Optional properties for compatible string qcom,wcn399x-bt: + + - max-speed: see Documentation/devicetree/bindings/serial/serial.yaml + - firmware-name: specify the name of nvm firmware to load + - clocks: clock provided to the controller + +Examples: + +serial@7570000 { + label = "BT-UART"; + status = "okay"; + + bluetooth { + compatible = "qcom,qca6174-bt"; + + enable-gpios = <&pm8994_gpios 19 GPIO_ACTIVE_HIGH>; + clocks = <&divclk4>; + firmware-name = "nvm_00440302.bin"; + }; +}; + +serial@898000 { + bluetooth { + compatible = "qcom,wcn3990-bt"; + + vddio-supply = <&vreg_s4a_1p8>; + vddxo-supply = <&vreg_l7a_1p8>; + vddrf-supply = <&vreg_l17a_1p3>; + vddch0-supply = <&vreg_l25a_3p3>; + max-speed = <3200000>; + firmware-name = "crnv21.bin"; + clocks = <&rpmhcc RPMH_RF_CLK2>; + }; +}; |