qualcomm-bluetooth.txt

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    1 Qualcomm Bluetooth Chips
    2 ---------------------
    3 
    4 This documents the binding structure and common properties for serial
    5 attached Qualcomm devices.
    6 
    7 Serial attached Qualcomm devices shall be a child node of the host UART
    8 device the slave device is attached to.
    9 
   10 Required properties:
   11  - compatible: should contain one of the following:
   12    * "qcom,qca6174-bt"
   13    * "qcom,qca9377-bt"
   14    * "qcom,wcn3990-bt"
   15    * "qcom,wcn3991-bt"
   16    * "qcom,wcn3998-bt"
   17    * "qcom,qca6390-bt"
   18 
   19 Optional properties for compatible string qcom,qca6174-bt:
   20 
   21  - enable-gpios: gpio specifier used to enable chip
   22  - clocks: clock provided to the controller (SUSCLK_32KHZ)
   23  - firmware-name: specify the name of nvm firmware to load
   24 
   25 Optional properties for compatible string qcom,qca9377-bt:
   26 
   27  - max-speed: see Documentation/devicetree/bindings/serial/serial.yaml
   28 
   29 Required properties for compatible string qcom,wcn399x-bt:
   30 
   31  - vddio-supply: VDD_IO supply regulator handle.
   32  - vddxo-supply: VDD_XO supply regulator handle.
   33  - vddrf-supply: VDD_RF supply regulator handle.
   34  - vddch0-supply: VDD_CH0 supply regulator handle.
   35 
   36 Optional properties for compatible string qcom,wcn399x-bt:
   37 
   38  - max-speed: see Documentation/devicetree/bindings/serial/serial.yaml
   39  - firmware-name: specify the name of nvm firmware to load
   40  - clocks: clock provided to the controller
   41 
   42 Examples:
   43 
   44 serial@7570000 {
   45         label = "BT-UART";
   46         status = "okay";
   47 
   48         bluetooth {
   49                 compatible = "qcom,qca6174-bt";
   50 
   51                 enable-gpios = <&pm8994_gpios 19 GPIO_ACTIVE_HIGH>;
   52                 clocks = <&divclk4>;
   53                 firmware-name = "nvm_00440302.bin";
   54         };
   55 };
   56 
   57 serial@898000 {
   58         bluetooth {
   59                 compatible = "qcom,wcn3990-bt";
   60 
   61                 vddio-supply = <&vreg_s4a_1p8>;
   62                 vddxo-supply = <&vreg_l7a_1p8>;
   63                 vddrf-supply = <&vreg_l17a_1p3>;
   64                 vddch0-supply = <&vreg_l25a_3p3>;
   65                 max-speed = <3200000>;
   66                 firmware-name = "crnv21.bin";
   67                 clocks = <&rpmhcc RPMH_RF_CLK2>;
   68         };
   69 };

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sys/contrib/device-tree/Bindings/net/qualcomm-bluetooth.txt