[PATCH v2 1/3] dt-bindings: net: bluetooth: add DT binding for Realtek controllers

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The rtl_bt driver already supports some Realtek controllers on ACPI
platforms.
This commit adds bindings for DT-only platforms.

Signed-off-by: Hugo Grostabussiat <bonstra@xxxxxxxxxxxxxxxxx>
---
 .../bindings/net/realtek-bluetooth.txt        | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/realtek-bluetooth.txt

diff --git a/Documentation/devicetree/bindings/net/realtek-bluetooth.txt b/Documentation/devicetree/bindings/net/realtek-bluetooth.txt
new file mode 100644
index 000000000000..01d4ed146705
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/realtek-bluetooth.txt
@@ -0,0 +1,25 @@
+Realtek Bluetooth controllers
+=============================
+
+This documents the binding structure and properties for the serial
+attached Bluetooth controllers from Realtek.
+
+Required properties:
+- compatible: currently, only "realtek,rt8723bs-bt" is supported
+
+Optional properties:
+- enable-gpio: gpio line controlling the power down (BT_DIS#) signal
+- device-wake: gpio line controlling the device wakeup (BT_WAKE) signal
+- config-name: postfix added to the name of the firmware file
+  containing the chip configuration
+
+Example:
+
+&uart1 {
+	bluetooth {
+		compatible = "realtek,rtl8723bs-bt";
+		enable-gpio = <&r_pio 0 4 GPIO_ACTIVE_HIGH>; /* PL4 */
+		device-wake-gpio = <&r_pio 0 6 GPIO_ACTIVE_HIGH>; /* PL6 */
+		config-name = "teres_a64_i";
+	};
+};
-- 
2.23.0




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