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+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>;
+ };
+};