linux-kernel - [PATCH v8 1/7] dt-bindings: net: bluetooth: Add device tree bindings for QTI chip wcn3990

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Date:   Mon, 25 Jun 2018 19:10:07 +0530
From:   Balakrishna Godavarthi <bgodavar@...eaurora.org>
To:     marcel@...tmann.org, johan.hedberg@...il.com, mka@...omium.org
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-bluetooth@...r.kernel.org, rtatiya@...eaurora.org,
        hemantg@...eaurora.org, linux-arm-msm@...r.kernel.org,
        Balakrishna Godavarthi <bgodavar@...eaurora.org>
Subject: [PATCH v8 1/7] dt-bindings: net: bluetooth: Add device tree bindings for QTI chip wcn3990

This patch enables regulators for the Qualcomm Bluetooth wcn3990
controller.

Signed-off-by: Balakrishna Godavarthi <bgodavar@...eaurora.org>
---

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       | 30 +++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
index 0ea18a53cc29..c2b09dd2bf31 100644
--- a/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
+++ b/Documentation/devicetree/bindings/net/qualcomm-bluetooth.txt
@@ -10,12 +10,23 @@ 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 VDD IO regulator handle.
+ - vddxtal-supply: Bluetooth VDD XTAL regulator handle.
+ - vddpa-supply: Bluetooth VDD PA regulator handle.
+ - vddldo-supply: Bluetooth VDD LDO regulator handle.
+ - vddcore-supply: Bluetooth VDD CORE regulator handle.
+ - max-speed: Maximum operating speed of the chip.
+
+Examples:
 
 serial@...0000 {
 	label = "BT-UART";
@@ -28,3 +39,18 @@ serial@...0000 {
 		clocks = <&divclk4>;
 	};
 };
+
+serial@...000 {
+	label = "BT-UART";
+	status = "okay";
+
+	bluetooth {
+		compatible = "qcom,wcn3990-bt";
+		vddio-supply = <&pm8998_s3>;
+		vddxtal-supply = <&pm8998_s5>;
+		vddcore-supply = <&pm8998_l7>;
+		vddpa-supply = <&pm8998_l17>;
+		vddldo-supply = <&pm8998_l25>;
+		max-speed = <3200000>;
+	};
+};
-- 
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