| * Bluetooth Controller |
| Bluetooth controller communicates with the Bluetooth Host using HCI Transport layer. |
| HCI Transport layer can be based on UART or USB serial communication protocol. |
| |
| Required properties: |
| - compatible: Should be set to one of the following: |
| qca,ar3002 |
| qca,qca6174 |
| qca,qca9379 |
| qca,wcn3990 |
| - qca,bt-reset-gpio: GPIO pin to bring BT Controller out of reset |
| |
| Optional properties: |
| - qca,bt-vdd-pa-supply: Bluetooth VDD PA regulator handle |
| - qca,bt-vdd-io-supply: Bluetooth VDD IO regulator handle |
| - qca,bt-vdd-ldo-supply: Bluetooth VDD LDO regulator handle. Kept under optional parameters |
| as some of the chipsets doesn't require ldo or it may use from same vddio. |
| - qca,bt-vdd-xtal-supply: Bluetooth VDD XTAL regulator handle |
| - qca,bt-vdd-core-supply: Bluetooth VDD CORE regulator handle |
| - qca,bt-chip-pwd-supply: Chip power down gpio is required when bluetooth module |
| and other modules like wifi co-exist in a singe chip and shares a |
| common gpio to bring chip out of reset. |
| - qca,bt-vdd-pa-voltage-level: specifies VDD PA voltage levels for supply. |
| Should be specified in pairs (min, max), units uV |
| - qca,bt-vdd-io-voltage-level: specifies VDD IO voltage levels for supply. |
| Should be specified in pairs (min, max), units uV |
| - qca,bt-vdd-ldo-voltage-level: specifies VDD LDO voltage levels for supply. |
| Should be specified in pairs (min, max), units uV |
| - qca,bt-vdd-xtal-voltage-level: specifies VDD XTAL voltage levels for supply. |
| Should be specified in pairs (min, max), units uV |
| - qca,bt-vdd-core-voltage-level: specifies VDD CORE voltage levels for supply. |
| Should be specified in pairs (min, max), units uV |
| - qca,bt-vdd-io-current-level: specifies VDD IO current level in microamps |
| - qca,bt-vdd-xtal-current-level: specifies VDD XTAL current level in microamps |
| - qca,bt-vdd-core-current-level: specifies VDD CORE current level in microamps. |
| - qca,bt-vdd-ldo-current-level: specifies VDD LDO current level in microamps. |
| - qca,bt-vdd-pa-current-level: specifies VDD PA current level in microamps. |
| - qca,bt-chip-pwd-current-level: specifies Chip Power current level in microamps. |
| |
| Example: |
| bt-ar3002 { |
| compatible = "qca,ar3002"; |
| qca,bt-reset-gpio = <&pm8941_gpios 34 0>; |
| qca,bt-vdd-io-supply = <&pm8941_s3>; |
| qca,bt-vdd-pa-supply = <&pm8941_l19>; |
| qca,bt-vdd-xtal-supply = <&pm8994_l30>; |
| qca,bt-vdd-core-supply = <&pm8994_s3>; |
| qca,bt-chip-pwd-supply = <&ath_chip_pwd_l>; |
| |
| qca,bt-vdd-io-voltage-level = <1800000 1800000>; |
| qca,bt-vdd-pa-voltage-level = <2900000 2900000>; |
| qca,bt-vdd-xtal-voltage-level = <1800000 1800000>; |
| qca,bt-vdd-core-voltage-level = <1300000 1300000>; |
| |
| qca,bt-vdd-io-current-level = <1>; /* LPM/PFM */ |
| qca,bt-vdd-xtal-current-level = <1>; /* LPM/PFM */ |
| qca,bt-vdd-core-current-level = <1>; /* LPM/PFM */ |
| qca,bt-vdd-ldo-current-level = <1>; /* LPM/PFM */ |
| qca,bt-vdd-pa-current-level = <1>; /* LPM/PFM */ |
| }; |