| 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,wcn3990-bt" |
| * "qcom,wcn3998-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) |
| |
| 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/slave-device.txt |
| |
| Examples: |
| |
| serial@7570000 { |
| label = "BT-UART"; |
| status = "okay"; |
| |
| bluetooth { |
| compatible = "qcom,qca6174-bt"; |
| |
| enable-gpios = <&pm8994_gpios 19 GPIO_ACTIVE_HIGH>; |
| clocks = <&divclk4>; |
| }; |
| }; |
| |
| 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>; |
| }; |
| }; |