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Subject[PATCH v10 1/7] dt-bindings: net: bluetooth: Add device tree bindings for QTI chip wcn3990
Date
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>
---
Changes in v10:
* added entry for regulator currents

Changes in v9:
* updated with latest reg handle and names.
* updated max-speed definition.

Changes in v8:
* Separated the optional entries between two chips

Changes in v7:
* no change.

Changes in v6:

* Changed the oper-speed to max-speed.

Changes in v5:

* Added entry for oper-speed and init-speed.

---
.../bindings/net/qualcomm-bluetooth.txt | 42 ++++++++++++++++++-
1 file changed, 40 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
index 0ea18a53cc29..ca04c4981048 100644
--- a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
+++ b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
@@ -10,12 +10,34 @@ 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:
+Optional properties for compatible string qcom,wcn3990-bt:
+
+ - vddio-supply: Bluetooth wcn3990 VDD_IO supply regulator handle.
+ - vddxo-supply: Bluetooth wcn3990 VDD_XO supply regulator handle.
+ - vddrf-supply: Bluetooth wcn3990 VDD_RF supply regulator handle.
+ - vddch0-supply: Bluetooth wcn3990 VDD_CH0 supply regulator handle.
+
+ - If WCN3990 is connected to platform where RPMH PMIC processor is used
+ then the load values will be 1uA. if it is connected to platform where RPM
+ PMIC processor is used then load value will be 10000 uA.
+ if it is connected to different platform, where current values are fixed
+ as in data sheet then below property are not required.
+
+ - vddio-current: Bluetooth wcn3990 VDD_IO current level in uA.
+ - vddxo-current: Bluetooth wcn3990 VDD_XO current level in uA.
+ - vddrf-current: Bluetooth wcn3990 VDD_RF current level in uA.
+ - vddch0-current: Bluetooth wcn3990 VDD_CH0 current level in uA.
+
+ - max-speed: see Documentation/devicetree/bindings/serial/slave-device.txt
+
+Examples:

serial@7570000 {
label = "BT-UART";
@@ -28,3 +50,19 @@ 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>;
+ vddio-current = <1>;
+ vddxo-current = <1>;
+ vddrf-current = <1>;
+ vddch0-current = <1>;
+ max-speed = <3200000>;
+ };
+};
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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