1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/net/bluetooth/qualcomm-bluetooth.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Qualcomm Bluetooth Chips 8 9maintainers: 10 - Balakrishna Godavarthi <bgodavar@codeaurora.org> 11 - Rocky Liao <rjliao@codeaurora.org> 12 13description: 14 This binding describes Qualcomm UART-attached bluetooth chips. 15 16properties: 17 compatible: 18 enum: 19 - qcom,qca2066-bt 20 - qcom,qca6174-bt 21 - qcom,qca9377-bt 22 - qcom,wcn3990-bt 23 - qcom,wcn3991-bt 24 - qcom,wcn3998-bt 25 - qcom,qca6390-bt 26 - qcom,wcn6750-bt 27 - qcom,wcn6855-bt 28 29 enable-gpios: 30 maxItems: 1 31 description: gpio specifier used to enable chip 32 33 swctrl-gpios: 34 maxItems: 1 35 description: gpio specifier is used to find status 36 of clock supply to SoC 37 38 clocks: 39 maxItems: 1 40 description: clock provided to the controller (SUSCLK_32KHZ) 41 42 vddio-supply: 43 description: VDD_IO supply regulator handle 44 45 vddxo-supply: 46 description: VDD_XO supply regulator handle 47 48 vddrf-supply: 49 description: VDD_RF supply regulator handle 50 51 vddch0-supply: 52 description: VDD_CH0 supply regulator handle 53 54 vddaon-supply: 55 description: VDD_AON supply regulator handle 56 57 vddbtcxmx-supply: 58 description: VDD_BT_CXMX supply regulator handle 59 60 vddrfacmn-supply: 61 description: VDD_RFA_CMN supply regulator handle 62 63 vddrfa0p8-supply: 64 description: VDD_RFA_0P8 suppply regulator handle 65 66 vddrfa1p7-supply: 67 description: VDD_RFA_1P7 supply regulator handle 68 69 vddrfa1p2-supply: 70 description: VDD_RFA_1P2 supply regulator handle 71 72 vddrfa2p2-supply: 73 description: VDD_RFA_2P2 supply regulator handle 74 75 vddasd-supply: 76 description: VDD_ASD supply regulator handle 77 78 max-speed: 79 description: see Documentation/devicetree/bindings/serial/serial.yaml 80 81 firmware-name: 82 description: specify the name of nvm firmware to load 83 84 local-bd-address: true 85 86 87required: 88 - compatible 89 90additionalProperties: false 91 92allOf: 93 - $ref: bluetooth-controller.yaml# 94 - if: 95 properties: 96 compatible: 97 contains: 98 enum: 99 - qcom,qca2066-bt 100 - qcom,qca6174-bt 101 then: 102 required: 103 - enable-gpios 104 - clocks 105 106 - if: 107 properties: 108 compatible: 109 contains: 110 enum: 111 - qcom,wcn3990-bt 112 - qcom,wcn3991-bt 113 - qcom,wcn3998-bt 114 then: 115 required: 116 - vddio-supply 117 - vddxo-supply 118 - vddrf-supply 119 - vddch0-supply 120 121 - if: 122 properties: 123 compatible: 124 contains: 125 enum: 126 - qcom,wcn6750-bt 127 then: 128 required: 129 - enable-gpios 130 - swctrl-gpios 131 - vddio-supply 132 - vddaon-supply 133 - vddbtcxmx-supply 134 - vddrfacmn-supply 135 - vddrfa0p8-supply 136 - vddrfa1p7-supply 137 - vddrfa1p2-supply 138 - vddasd-supply 139 - if: 140 properties: 141 compatible: 142 contains: 143 enum: 144 - qcom,wcn6855-bt 145 then: 146 required: 147 - enable-gpios 148 - swctrl-gpios 149 - vddio-supply 150 - vddbtcxmx-supply 151 - vddrfacmn-supply 152 - vddrfa0p8-supply 153 - vddrfa1p2-supply 154 - vddrfa1p7-supply 155 156examples: 157 - | 158 #include <dt-bindings/gpio/gpio.h> 159 serial { 160 161 bluetooth { 162 compatible = "qcom,qca6174-bt"; 163 enable-gpios = <&pm8994_gpios 19 GPIO_ACTIVE_HIGH>; 164 clocks = <&divclk4>; 165 firmware-name = "nvm_00440302.bin"; 166 }; 167 }; 168 - | 169 serial { 170 171 bluetooth { 172 compatible = "qcom,wcn3990-bt"; 173 vddio-supply = <&vreg_s4a_1p8>; 174 vddxo-supply = <&vreg_l7a_1p8>; 175 vddrf-supply = <&vreg_l17a_1p3>; 176 vddch0-supply = <&vreg_l25a_3p3>; 177 max-speed = <3200000>; 178 firmware-name = "crnv21.bin"; 179 }; 180 }; 181 - | 182 serial { 183 184 bluetooth { 185 compatible = "qcom,wcn6750-bt"; 186 pinctrl-names = "default"; 187 pinctrl-0 = <&bt_en_default>; 188 enable-gpios = <&tlmm 85 GPIO_ACTIVE_HIGH>; 189 swctrl-gpios = <&tlmm 86 GPIO_ACTIVE_HIGH>; 190 vddio-supply = <&vreg_l19b_1p8>; 191 vddaon-supply = <&vreg_s7b_0p9>; 192 vddbtcxmx-supply = <&vreg_s7b_0p9>; 193 vddrfacmn-supply = <&vreg_s7b_0p9>; 194 vddrfa0p8-supply = <&vreg_s7b_0p9>; 195 vddrfa1p7-supply = <&vreg_s1b_1p8>; 196 vddrfa1p2-supply = <&vreg_s8b_1p2>; 197 vddrfa2p2-supply = <&vreg_s1c_2p2>; 198 vddasd-supply = <&vreg_l11c_2p8>; 199 max-speed = <3200000>; 200 firmware-name = "msnv11.bin"; 201 }; 202 }; 203