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dt-bindings: net: bluetooth: Add device tree bindings for QTI chip wcn3990

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This patch enables regulators for the Qualcomm Bluetooth wcn3990
controller.

Signed-off-by: Balakrishna Godavarthi <bgodavar@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Balakrishna Godavarthi 2018-08-03 17:46:26 +05:30 committed by Marcel Holtmann
parent 4c79148970
commit 505013555a
1 changed files with 27 additions and 2 deletions
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29
Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
View file

@ -10,12 +10,25 @@ device the slave device is attached to.
Required properties:
- compatible: should contain one of the following:
* "qcom,qca6174-bt"
* "qcom,wcn3990-bt"
Optional properties for compatible string qcom,qca6174-bt:
Optional properties:
- enable-gpios: gpio specifier used to enable chip
- clocks: clock provided to the controller (SUSCLK_32KHZ)
Example:
Required properties for compatible string qcom,wcn3990-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,wcn3990-bt:
- max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
Examples:
serial@7570000 {
label = "BT-UART";
@ -28,3 +41,15 @@ serial@7570000 {
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>;
};
};